July 31, 2007

how to use the camera’s histogram display for exposure metering

Histograms display the relative levels of the darker to brighter tones. As the histogram stands, it isn’t of much direct use to us, since the tonality of the scene that was captured will dictate what the histogram shows us .. without a direct indication of whether exposure is correct.

Some will say that a histogram should have an even bell-shaped curve, but this is too simplistic.   A light toned subject against a white wall will show a much different histogram that a dark toned subject against a dark wall .. even though the exposure might be correct in both instances.

In both those cases, the actual histogram display might be interesting to look at, but of no real direct use to us. But, here’s how I use the histogram to determine correct exposure


 
For all that the histogram shows us, there is only one thing that is of direct consequence to us .. where the brightest relevant tone lies on the histogram. And I have to stress the word ‘relevant’.

It is no use looking at the histogram to determine exposure if there are bright patches of sky or highly reflective surfaces .. for this will skew the histogram display in making it appear like we are over-exposing, when it fact, we might very well have correct exposure.

With weddings (and portraits), the brightest relevant tone is most often the bride’s dress or groom’s shirt cuffs. So what I do is point the camera to an area that only contains the white dress / shirt, and no other bright areas. Then the most right-hand point on the histogram will be the white area. And then we can place that white tone correctly on the histogram .. and all the other tones will fall into place, whether skin tones or clothes or surroundings.

There is another way to approach this, and that is to spot-meter off only the relevant white area, and place it around 1.3 stops over the zero mark on your camera’s meter display. You don’t want to zero the meter reading then, since we don’t want the white to appear as grey. We want the white to appear as white .. and that will be around 1.3 stops to 1.7 stops over the zero mark. You will have to figure out the specific value for your specific camera, since there are some differences between the camera makes.

But back to using the histogram …

Here is what the Canon’s histogram will look like.

In my experience I have found I will get the best exposure if the brightest relevant area has the edge of the histogram appear somewhere in the 5th block on the display, about 1/3rd from the edge of that display.  It would seem that this varies a little between the various Canon D-SLR models, so it might be necessary for anyone who wants to use this method of calculating correct exposure, to interpret and apply this idea to the specific camera being used.

If I start over-exposing, then that kind of spike will start to appear.
With Canon D-SLRs (that I have experience of), the blinking highlights display won’t blink yet, but the image will appear too bright.

.
.

The Nikon histogram looks slightly different:
In my experience, I get an optimally exposed image, if I have the edge of the histogram just barely not touching the corner of the histogram display … for the brightest relevant tone. (That term again. It’s an important distinction.)

.
Here is the same image, but 2/3rd stop over-exposed. You can see the spike on the right-hand side. It looks different than the spike on the Canon histogram.

.

From the above images, it should be obvious how I use the histogram to achieve correct exposure … I take a close-up view of the relevant brightest tone (some white area) .. and I place this at a very specific point on the histogram.

I lock this exposure value by using manual exposure mode, and all my images taken under the same lighting *will* be correct.

I’ve found this method to be consistent to the extent that I don’t use my flashmeter any more when using studio type strobes.  (I use the Quantum flashguns.)

 

help support this website

 

{ 71 comments. } Add a Comment

1 Andrea Lane August 4, 2007 at 7:53 am

Thank you for this Neil. Very useful explanation.

Reply

2 Mearle August 7, 2007 at 10:36 am

Neil, I can see clearly from the Nikon histogram where you have an over exposure, but your pair of examples with the Canon histogram seems strongly affected by the change in position of the bouquet of flowers that reduce the amount in the white wedding dress. Since the less white portion dress is covered, the remaining whites form a spike, not from overexposure, but but from a reduction of white data. I would contend that you still have a properly exposed image on the Canon at 1/100 f5.0, especially if you are shooting in RAW instead of JPEG.

Reply

3 Neil August 8, 2007 at 3:54 pm

Hi there Mearle.

On a histogram, the height of the graph at any point, shows how much info there is. So a spike would show that there is *more* data, not less.

I do agree that with a RAW file you’d be quite safe with that exposure because you’d easily pull it into the range where the image looks properly exposed. (btw, I shoot exclusively in RAW.)

I have found that using my histogram in this way, I can nail exposure nearly every time. And with RAW I have that leeway should I need it.

Neil vN

Reply

4 Rodolfo Rodriguez October 6, 2007 at 3:54 pm

Dear Neil:
Congratulations for your blog. 10 over 10 !

With your familly name sure you are from NL or the north of BE.
Aren’t you ?
Smart people from those lovely countries have a very special quality teaching confuse things into untestardable ones. No matter which topic.
I am proud to tell you that I lived and work during 3 years in Antwerpen, (Berchem) 35 years ago working by Agfa-Gevaert in Mortsel.
Where my main photographic and electronic backgound comes from. Please keep in touch
Rodolfo, from Argentina

Reply

5 Kafka January 7, 2008 at 9:15 am

Hi,

Thanks again, Neil.

I was doing similar things with manual metering mode or by adjusting exposure compensation with aperture priority mode, but your techniques gave me for the first time a clear and practical principle which saved me from my fuzzy method.

I am curious now. If I may describe your technique as a “high key” metering, do you use a “low key” metering technique, if there is, when you want black to appear as black as far as possible? How would you adjust by looking at the histogram or that’ll always require us to dial the exposure compensation as per experience?

Kafka

Reply

6 Desmond January 10, 2008 at 3:23 am

Hi Neil , I am also from SA , living in New Zealand now . I want to take control of exposure by going manual and this has been a very useful instruction for me .
Cheers , Desmond .

Reply

7 George January 16, 2008 at 4:59 pm

Hi Neil,
Great site, and I like this technique. I see how it can be very useful in controlled settings such as the studio. But, how do you manipulate this fast enough to keep up with the fast pace and ever changing lighting of weddings, especially outdoors? Is there a different technique you use for that? If so, please share.

Thank you,

George

Reply

8 Ross February 19, 2008 at 10:03 am

Hi Neil,

Great tutorial, helps me a lot with achieving the correct exposure. However I too would be interested in how you use this technique in Candid shots when you are moving around frequently.

Ross

Reply

9 Neil May 15, 2008 at 11:04 pm

Hi there Ross and George

I shoot in manual exposure mode nearly always, and adjust my exposure on the fly. It comes with practice.

But I also make it easier on myself with certain types of shoots, for example outdoor portrait sessions – I position my subjects so that they are in a consistent light. So if the light doesn’t vary much, it means I don’t have to adjust continuously. I get my settings, and then I shoot.

Neil vN.

Reply

10 David Whitehouse October 10, 2008 at 6:33 pm

Hi Neil
Just returned to SLR photography after a 20+ break!! My wife bought me a Nikon D40 and after buying a bounce head flash I realised how much things have progressed in that time (apart from myself of course….). I was do relieved to find that your site contained superb advice that was easy to understand and put into practice – from a feeling of unease at all of the technology at my fingertips I suddenly feel like “I can really do this!!” – many thanks!

Reply

11 Georgia Anne Hozey November 18, 2008 at 11:20 pm

WOW!! I keep saying it from your posts in Canon Digital Photography FOrums and now that I have had a chance to read more detailed print from you… I am even more in awe! THANKS for the time you have spent explaining so in-depth and yet UNDERSTANDABLE examples and instruction!!!!

You have given me HOPE! THAT is priceless! Thank you!!!!

Reply

12 Martian July 9, 2009 at 4:40 am

Neil

I tried your technique. I set my camera to 1/1000 F3.5 ISO 200.

But, as soon as I switch on my SB800 to add some fill-flash, the shutter speed goes down to 1/250. I would assume that this is because of the max synch flash.

In this case what do you do usually. Shoot anyway or make adjustments?

Thanks

Martian

Reply

13 Neil July 11, 2009 at 6:17 pm

Martian, I wouldn’t just shoot when the shutter speed drops with your flash switched on, because that would mean your ambient light would now over-expose.

Rather -since you know that the camera will default to maximum sync speed – find your initial correct exposure at maximum sync speed. Or, find your correct exposure first, and then count how many clicks it takes to get to max sync speed, and then adjust your aperture and / or ISO by that many clicks.

Neil vN

Reply

14 Lindie February 9, 2014 at 8:48 am

Neil – I struggle with this concept in theory. Shutter 1/1000 signifies that there is a lot of light around, so taking it up to 1/250, while I would need the F3.5 for its DOF, and the camera can’t do less than ISO 200 – would over-expose – now what about fill-flash?
Thanks

Reply

15 Neil vN February 9, 2014 at 6:29 pm

Just to be clear – going from 1/1000 to 1/250 isn’t “going up” in shutter speed.

What you are looking for is a neutral density filter
- Using ND filter to control DoF with flash
- Using ND filter to control DoF with flash
- portraits of a speedway racer

Reply

16 Lindie February 10, 2014 at 6:02 pm

Oops, of course, not “up”

Reply

17 Allan July 17, 2009 at 9:21 pm

Hi Neil,

Firstly, let me offer a huge thank-you for the most informative site I have yet to find on the net. Your level of generosity and professionalism is beyond measure, not to mention your considerable skill and eye for photography.

With regard to outdoor photography *in* harsh sun (where there is no option for shade) I often find that I blow out parts of the hair and face (if facing slightly side on to the sun) while maintaining good exposure on clothing etc.

If I compensate down for this (by adjusting my aperture) then use direct fill flash (Nikon gear) on the subject my background will be very dark and my subjects have an obvious flash look.

I find that if I reduce my flash output down 1.3-1.7 (in this circumstance only) that I cannot get a decent exposure on the dark side of the face (where the sun isn’t) as I have set my aperture to accommodate the harsh sun on the bright side of the face and hair.

Is this just a matter of living with the blown out hair or the “flashed” look if there are no options for shade?

Thanks again for all of your help. BTW, when can I get your book?

Reply

18 Neil July 19, 2009 at 2:28 pm

Hi there Allan .. thanks!

Check this previous post on dealing with hard sunlight. (I’ll add more on this topic with future posts)

Those are the limitations if your subject is half in shade and half in sun … accept a hard flashy look, or use off-camera flash with a soft-box (or similar).

The book is apparently shipping at this moment, and should be available on Amazon and book-dealers within the next 2-3 weeks.

Neil vN

Reply

19 Stephen July 23, 2009 at 8:43 am

Neil,
It’s been mentioned on various internet discussion groups that the in-camera histogram represents the JPEG histogram rather than the actual histogram of the RAW. Several methods have been discussed about how to make the in-camera histogram match closer with the RAW dynamic color range. Some involve changing the Nikon Picture Control settings so that contrast and saturation are dialed to their minimums. Another solution involved loading a custom color curve into the camera.

From your blog posts, I believe that you are not bothering with any of those solutions. If that is the case, is your Nikon Picture Control set to Standard (SD), which is the default setting? I notice that if I set the Picture to Vivid (VI), the in-camera histogram shifts, which throws me off when using the histogram technique.

Thanks.

Reply

20 Neil July 25, 2009 at 4:36 am

Stephen .. all of that is very likely .. and yet, (I believe), not hugely important during an actual shoot. Especially so if you shoot in the RAW format, you have a fair amount of leeway.

So I think this is one of those things again where it is easy to over-think it and get bogged down with the minutia .. instead of concentrating on creating good images.

I keep my cameras to default / standard settings; shoot in RAW; and then adjust as I feel is required during post. Much simpler.

Neil vN

Reply

21 Neil Marks July 26, 2009 at 10:06 am

Neil,

Thank you for an incredibly helpful blog.

Do you have a preference for shooting in 12 bit or 14 bit RAW?. I know that theoretically 14bit will give give a much greater tonal range but in practice do you find this necessary?. I am wondering if the benefit outweighs the bigger file size.

very best regards

Neil Marks

Reply

22 Neil July 26, 2009 at 11:16 am
23 Dwayne Zimmerman July 26, 2009 at 12:01 pm

I can understand how you “take a close-up view of the relevant brightest tone (some white area).” But I don’t understand how you “place this at a very specific point on the histogram.”

How can you “place” something on your histogram?

Reply

24 Les July 27, 2009 at 8:56 am

Hi Dwayne,

Here’s what I believe Neil means by…

“… I take a close-up view of the relevant brightest tone (some white area) .. and I place this at a very specific point on the histogram.”

1) Follow his framing technique for checking exposure and take a shot. Review the histogram.

2) If the right side (the highlights) are too far left or right of where he likes them to fall, he adjusts his shutter speed, or aperture, or exposure compensation to “place them” further left or right to just where he wants them.

Regards,
Les

Reply

25 Neil July 30, 2009 at 5:49 pm

Les has it covered. :)

Neil vN

Reply

26 Dana Titus August 15, 2009 at 3:32 pm

Neil,

thanks, this is so helpful. I can’t wait for your next SF Bay area workshop, I’ll be the first to sign up when you announce a date! I have a question about this process of metering. About how far are you from your subject when you are metering? Are you at the distance from which you plan to take the shot? Or do you move in closer to meter? That is the one thing that still stumps me… how far away to meter from. Thanks!

Reply

27 Neil August 15, 2009 at 5:48 pm

Dana … it doesn’t matter! As long as you don’t block the light falling onto your subject, then your distance to the subject doesn’t affect the exposure .. and hence won’t affect the metering of a specific tonal value. You might have to go to spot-metering to make sure you only meter of a certain tone .. but your distance to your subject has no effect on the metering.

Neil vN

Reply

28 Ant Brooks August 28, 2009 at 9:30 pm

Hello

I sommer smaak your book and site ek se!I am a Rhodie/Zimbo.

I have a Canon 20d. I am using Vivitar 283/5 flashes.

Is it possible to use the on camera flash to fire a slave? I have tried but find the camera’s brain adjusts the exposure.

My days in Africa have made me tight-fisted(or cheap). Are Vivitar and Sunpak dedicated flashes any good? They certainly put out a lot of light for the money.

Cheers

Ant Brooks

Reply

29 Neil August 29, 2009 at 3:36 am

The problem you’re having is that you can’t use the histogram to determine correct exposure before-hand and then repeat it for all other photographs, as you could with ambient light or manual flash. This is because TTL flash varies in exposure depending on your composition and the tonality of the scene.

best

Neil vN

Reply

30 Kim August 30, 2009 at 3:03 pm

Hi Neil.

I’m not sure if I understand your way of doing it – english is not my native language – but I understand it this way :

You set your camera on M and choose Spot-metering. Take some photos where you meter the white dress, and place your histogram by changing the aperture/shutter/iso. Is this how you do it ?

If you then want to add some flash, how do you control the flash from adding too much light to the subject ?

Kim – Denmark. D70s+SB-900

Reply

31 Ant Brooks August 31, 2009 at 8:40 pm

2 questions

Does your book cover the use on non-dedicated auto exposure flashes (vivitar 283 etc)?

Do your methods require a TTL dedicated flash?

Reply

32 Steve Crouch September 1, 2009 at 7:30 am

Hi Neil,

I’ve been playing around with using spot metering and the zone system for getting the exposure correct for white clothing. I had a white shirt hanging up in direct sunlight and metered onto it’s brightest part, I then added 2 stops (in Manual) and took some test shots; no flashing highlights. I played with other exposures to see how far I could push the D3 until it started to blow out the highlights (I could get to +3 stops but the image was over exposed in my opinion).

Anyway, I brought these images into the PC and view them with BreezeBrowser, the histogram was the same as displayed by the camera, all good. But when I imported the same RAW files into Lightroom the histogram was different and images that showed no blowing out in the camera or breezebrowser were suddenly having problems. A simple bit of recovery adjustment cleaned this up but I wonder if you have experienced this yourself? This happens in any of the camera calibration settings.
Your opinion would be appreciated.
Thanks
Steve

Reply

33 Alwin Koops September 2, 2009 at 7:52 am

Hi Neil, I found that the histogram on my camera is slightly differtent than in Lightroom. I shoot everything in RAW but I was told that the histogram on any camera is always showing a JPEG histogram because the camera can’t show the RAW file as a preview. So the picture and the histogram on the camera are always a little bit differtent from the RAW file. What’s your opinion about this?

Thanks, Alwin

Reply

34 Neil September 2, 2009 at 4:36 pm

Alwin, read my July 25 comment to Stephen about this topic.

Neil vN

Reply

35 winston September 16, 2009 at 9:28 pm

nice run up on techniques and ideas for strobes. Always good to read other photogs ideas and attack behind the cameras

Reply

36 Lydia November 4, 2009 at 5:17 am

Neil
“There is another way to approach this, and that is to spot-meter off only the relevant white area, and place it around 1.3 stops over the zero mark on your camera’s meter display. You don’t want to zero the meter reading then, since we don’t want the white to appear as grey. We want the white to appear as white .. and that will be around 1.3 stops to 1.7 stops over the zero mark.”

Please tell me how many CLICKS over the 0 mark is 1.3 / 1.7 stops – I’m on 1/3 increments.

Many thanks

Reply

37 Neil November 4, 2009 at 12:09 pm

Lydia … one click = 1/3d stop

Count the clicks on your aperture dial or on your shutter speed dial (or both), or even your ISO setting.

Neil vN

Reply

38 Lydia November 4, 2009 at 2:33 pm

Neil
Thanks, but when you refer to 1.7 stops – how many clicks is that?

Reply

39 Lance November 4, 2009 at 4:07 pm

Lydia,

I believe that would be 5 clicks, total.

The meter center is 0. each full stop is generally represented by a vertical line, as such: | and each 1/3rd stop by a dot. so..

- < |..|..0..|..|> +

your 5th click over would then be 1.7 (or 1 2/3rd) stops.

Anybody is welcome to correct me if i forgot something.

Reply

40 Lydia November 4, 2009 at 4:40 pm

Lance, yes – it makes sense that 5 clicks = 1 2/3 stops, but how does that amount to 1.7 stops? Thanks for explaining nevertheless.

Reply

41 Lance November 4, 2009 at 4:59 pm

[1.7] IS [1 2/3] stops. same thing, different notation.

1/3 = 0.3
2/3 = 0.7
3/3 [1] = 1

Clear? :)

Reply

42 Alfredo Medina February 21, 2010 at 4:14 pm

Hi Neil,

Today I had on my hands a camera Canon Powershot SX-10 IS and I could see that this has a live histogram. For me it was very interesting to see the histogram before the shot and I wonder why this type of histogram is not implemented in the pro cameras and semi-pros?

Best regards,

Alfredo.

Reply

43 Neil vN February 21, 2010 at 5:47 pm

Alfredo, I do believe it has to do with the limitations of the way that D-SLRs are designed, based on the reflex mirror. But I am sure it’s a next logical step for pro D-SLRs to have this feature.

Neil vN

Reply

44 jm April 5, 2010 at 8:23 am

hi neil,

im a newbie and i find your site very helpful for a rookie like me.

question: when you say “the brightest relevant tone” is it just any color which is the brightest? if there is no white what should be your next option where you can spot meter?

Reply

45 Neil vN April 5, 2010 at 5:21 pm

JM .. this is where a bit of common sense has to prevail. A bright tone, even if non-white, will still work. SInce we’re shooting RAW anyway, we have a fair amount of latitude even if we misjudge the brightness of the tonal value a little.

However, a deep color won’t work, since the tonal value of the color would be darker than white (or a bright tone.)

If you have no white area to meter off, you can always supply it in the form of a napkin or handkerchief.

Neil vN

Reply

46 Joanna Kapica December 18, 2010 at 10:00 am

May I just say, that every time I visit your site I always find something, that inspires me and teaches me something new in the way I can take advantage of my camera.
Shooting subjects with a lot of white in them has been a bit of challenge and now I do get more understanding of what I can do, to improve my technique.
Thank you.

Reply

47 Bart December 26, 2010 at 4:26 pm

Hello Neil,
Love the site, love your book. Tons of useful information. Thanks for sharing.
I tried the histogram method and I found out that if I use the ttl and manual exposure mode, i am limited to flash compensation value in regards how much i can move the white point on the histogram. I could also use the aperture but in my experiment i am starting with the lowest aperture value and sync speed. I photograph the white towel with ttl on and it landed little bit to the right of the middle of the histogram. So with my d90 i changed the flash compensation to +1 (this is max) and I was able to move it little to the right, but there was still little room to move it more to the right , but i was limited because of the max flash compensation value. So assuming that in nikon the white point should be moved a little more in my picture (for the brightest relevant tone) the only that is left is the raw software that will allow me to change the exposure value?

Reply

48 Neil vN December 26, 2010 at 5:27 pm

Bart .. since TTL is an automatic metering mode, you can’t use the histogram to determine specific exposure like you can if you were using (constant) available light, or manual flash. Then you can use the histogram to confirm you have accurate exposure. This is based on the idea of looking at your brightest relevant tone.

With TTL flash, your exposure will vary depending on your composition, or depending on how much white or black you include. So you can’t use the histogram to pre-determine exposure .. only to confirm afterward.

Now, with your observation that you ran out of FEC to adjust the TTL flash … this makes me think you were in TTL BL mode and not TTL mode. If you want to do the same experiment again, try it with the flash set to TTL mode.

Neil vN

Reply

49 Bart December 27, 2010 at 12:18 pm

thanks for the clarification.

Reply

50 GOPI February 14, 2011 at 11:34 am

Hi Neil, first of all thank you very much for this excellent site and sharing your experience with us. I have a doubt, You said to over expose 1.3- 1.7 in the camera. Is it right to over ride the FEC 1.3- 1.7 instead of changing the camera setting.

Reply

51 Meredith June 14, 2011 at 2:10 pm

I just love your work! But I have been having trouble shooting RAW. I love the option of RAW when editing and such but for some reason on my Nikon D700, when I shoot RAW, and nail my exposure, when I open them in Lightroom, they always look contrasty, off in color (mostly too yellow or green) and too bright. I even took a picture with Jpeg and then again with RAW and my Jpeg looked so much better than my RAW file. Is this normal for RAW in NIkon? I thought maybe it was my computer but my Jpegs don’t look that way.
I want to shoot RAW but when I see them on my computer they always look off and it takes me longer to fix it than to just shoot Jpeg and nail it in camera.
Thanks!

Reply

52 Stephen June 14, 2011 at 3:12 pm

Meredith,
The image you see in the camera is the JPEG, so the camera already applied processing to it.

RAW images have no processing done on them, so they will look flat or off compared to the JPEG images.

In Lightroom, check your camera calibration setting. If it is Adobe Standard, it will make your images look different than your camera JPEG. If it is set to Camera Standard, it should look closer to your camera’s JPEG.

Reply

53 Lee September 12, 2011 at 9:12 pm

Hi!

Really enjoyed both your books on flash photography and these blog posts also.

When you determine exposure using your histogram, you refer to getting the right side of the histogram in the middle of the 5th section (on Canon). I get that. Then you mention it being 1/3 from the side of the display. What do you mean by that part? The middle of the 5th block doesn’t seem to be 1/3 of the distance from anywhere to me. Do you mean “somewhere between 1/2 and 2/3 across the fifth block?”

Reply

54 Neil vN September 13, 2011 at 12:48 am

Lee .. I intended to say that the edge of the histogram is about 1/3rd way in, but my phrasing was clumsy. I’ve fixed it now to remove any ambiguity. I hope it makes more sense now.

Neil vN

Reply

55 mike September 14, 2011 at 8:09 am

neil,
i am using a d7000 and sb700,,,,,,it seems as though with matrix and center weighted metering i automatically get ttl bl and with spot metering i get ttl….there doesnt seem to be a choice, its decided for me, am i right?

Reply

56 William October 10, 2011 at 10:05 am

Hi Neil. This is a very helpful blog. Thanks so much for posting. I have just come across it. I’m away at work now and won’t be able to try it for a couple of days but I will certainly give it a go.

Have you found any “sweet spot” for the histogram with the 5D2? I shoot RAW so it might not be much of a worry as long as the highlight isn’t blown. Also can I just clarify ( I’m a Canon 5Dmk2 user) about the Canon histogram. As soon as a “spike” appears that means that you have gone too far with your exposure although it won’t be blown unless it crashes right into the edge. This is right isn’t it?

Also is there a different technique for reading histograms when the scene is very dark and “low-key”, and much moodier with few highlights such as the bride’s dress?

Thanks again

Reply

57 William October 10, 2011 at 10:29 am

Sorry I meant also to say that one of the reasons I was asking was that for us RAW shooters, there is the option of exposing “to the right” as well and I wondered if you were an advocate of this or not. If not then would you have a different technique for metering a dark scene with a histogram?

Thanks and sorry for posting twice

Reply

58 Tom January 17, 2012 at 12:36 am

Ok, stupid question but here goes: I am not sure which histogram above is our goal. In the Nikon example, do we WANT the second histogram with the clipping on the right side? I get the impression we do, but when Neil writes that the second image is “2/3rd stop over-exposed” it makes me wonder what he means, i.e., is the second shot “over-exposed” yet correctly exposed?

Reply

59 Neil vN January 17, 2012 at 12:38 am

Tom .. in this case, where we have ONLY relevant tones in the image (ie, now super-bright backgrounds, etc), then we want the histogram to dip as close to the corner as possible … for any white tones. No clipping.

Neil vN

Reply

60 Tom January 17, 2012 at 7:36 am

Thanks for replying so quickly, Neil! Just so I understand (and apologies for being a bit dense!) the second Nikon histogram is indeed the preferable one? I usually try to avoid seeing a spike on the right side (as in the second histogram) and would instead likely aim for something closer to the first histogram. But then I don’t really know what I’m doing, which is why I’m asking the pros!

Reply

61 Stephen January 17, 2012 at 9:49 am

Tom,
The first Nikon histogram, where the right end of the histogram just approaches the chart’s edge is the better one where white is the brightest relevant tone. See http://neilvn.com/tangents/images/histogram/histogram1.jpg

The second picture where the histogram spikes is bad for this image, because you start to overexpose the bride’s dress (which is white). You generally want to be able to see details on the bride’s dress, so you want to avoid overexposing it. Overexposing the bride’s dress washes out details.

Reply

62 Tom January 18, 2012 at 12:57 am

Thank you, Stephen, I think I understand that bit now. Time for stupid question number two: when using this method of metering (i.e., placing the brightest relevant tone appropriately near the right edge of the histogram) I assume I should not be firing my speedlight, correct? If so, is this method intended for times when one is using only available or otherwise constant light such as studio lights?

Reply

63 Neil vN January 18, 2012 at 1:12 am

Tom .. you need constant light, whether ambient light or manual flash.
You can’t use this for TTL flash, except as an after-the-fact check to see if your exposure was correct.

Also read comment # 46

Neil vN

Reply

64 Tom January 18, 2012 at 1:33 am

Thank you so much, Neil! I am working through your on-camera flash book and finding it extremely informative if a bit of a steep learning curve for someone at my level.

I’ve suddenly been asked to take some shots of a wedding at New York’s City Hall in just a few days time, as a favor for a couple of friends. They’re not expecting pro-quality work by any means, but I aim to do my best for them, so I am trying to learn what I can in three days time (gulp!) I guess I’ll find out how well I can handle my D90 and SB-600.

Reply

65 aditya March 28, 2012 at 6:50 am

hi,
As we meter white dress for a bride and adjust it on histogram as to how much needs to be overexposed .
I have one question as how we adjust if the skin tone of the person is at extreme levels( too dark and very fair).
regards
Aditya

Reply

66 Neil vN March 28, 2012 at 3:55 pm

Aditya … you don’t “over-expose” the white dress. You expose correctly … by shifting the exposure value up. In the viewfinder, you’d look at the exposure meter, and take it to around 1.3 stops up from zero .. the brightest relevant tone, ie, white.

Not over-exposure, but correct exposure.

Here is another article that goes over the topic:
exposure metering for the bride’s white dress

You can’t do the same kind of judgement for darker skin tones when you use the histogram. Not with the same accuracy you do for white, anyway.

Reply

67 Lindie February 9, 2014 at 1:46 pm

Neil -when you say “1.3 stops up from zero” – do you mean towards the left from the 0 – is this my a-ha-moment?

Reply

68 Neil vN February 9, 2014 at 4:38 pm

Up from zero = to the positive side.
With Nikon cameras, this is often to the left. But it could be to the right on the newer cameras. With Canon this is to the right. So I can’t tell you to which side it is. But it has to be in a positive direction, and YOU need to read your camera’s meter to interpret this correctly.

Reply

69 Tom January 15, 2013 at 1:46 am

Hi Neil,
I’ve just bought your book. I absolutely love your site and how you explain things. I’ve got problem with one thing. I haven’t found it yet on your website so that’s why I’m asking. In understand the technique with putting “the brightest relevant tone” in the histogram so everything else falls into place… but what if there is no WHITE in the scene? How do we shape histogram in that case??

Tom

Reply

70 Neil vN January 16, 2013 at 1:20 am

You can always add a white object to what you need to be metering off. A paper kitchen towel. A white T-shirt or napkin.

Alternately, use a handheld meter.

Reply

71 Jeff April 23, 2013 at 11:45 pm

Thank you Neil for all of your tips on this site, especially this one.

This truly opened my eyes on proper metering technique. Changed completely the way I shoot, and of course this opened up the world of flash photography too.

Reply

Leave a Comment

Previous post:

Next post: