just got a call for a job to shoot product shots of vintage eye glasses for a website, i have done some product photography before and i have a basic understanding of angle of incidence equals angle of reflectance, i have seamless white paper (which i will use as a sweep), a few strobes, one 16 inch Softbox, and bunch of various sized umbrellas, i do not have a lightbox. should i go for a diffuse reflection in the glass with softbox? should i put a light from below the seamless to eliminate shadows? any tips or advice would be greatly appreciated thanx
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I would assume you wouldn’t want a lightbox, as that would just greatly increase your chances of catching a reflection. The fewer light sources the better. I would hit it with the soft box a little to the side and above the lens. I would then slowly add reflectors/lights to fill, keeping an eye on my reflections. I’d probably either set the lens vertically (like how they appear on a face), tilted a little right or left (opposite softbox) to keep the reflections away, or I would fold the arms behind it and lay it facing up and shoot down at it, from an angle "beneath" the glasses. Use a long lens, obviously. I would also check the “incident” angle coming from my lens, to the glasses and where that points to; I would make sure there’s nothing light colored in that general area. In fact I would probably put something black there just to make sure.
I think you could just lay it on white paper and it would be fine. Alternately, you could put it on a sheet of glass and put your white background a couple feet below that. That’d give you room to blast it pure white, and you wouldn’t have shadows – if that’s what the client wanted.
This isn't a great image, but it has both the angles I was thinking of in it. A quick look at Google images shows that 99.99% of all the glasses shots are like the bottom one (I would come at less of an angle). Though there were a few straight on...
http://3.bp.blogspot.com/_DzYtsKibSMU/S8fbMYykBeI/AAAAAAAAADo/tm-wwJd4KPw/s1600/Optical_framereading_glasses.jpg
i started off with my 70-200 but then switched to a 50 due to DOF, The setup was one speedlight in a 16inch softbox to camera right, i set the glasses down on seamless sweep of paper camera at F11, 1/200,ISO200,
both photos r as shot out of camera with only very minor exposure adjustments in post. another point is that even at f11 the dof is so small if i want to get the whole glasses in focus id have to take about 5 shots, unless i use a tilt shift, i wonder if pro product photographers use a TS for eyeglasses, any advice would be appreciated
Personally I wouldn't hesitate to stop down a bit more if I could get it all in one slice. But I'd use my 100mm macro which shines between f11-f13 anyway; I think I could get away with f16 on a cropped sensor without much noticeable softening. You could also pull it back a little and crop a bit to get a little more in.
The shadows in the first don't really bother me, gives it a bit of depth. Of course if the customer wants white neither is going to fly. Agreed that the second shot lost a lot of definition in the glass. If you're not opposed to PP a bit of sharpening or even a high pass filter makes transparent objects pop off the page.
I'll see if I can dig up a pair of glasses tonight and give it a shot; maybe learn something.
I never thought about plexiglass, that's a good call. I picked up a couple of 12"x12" squares of black and white granite from Home Depot that work really well. The black isn't completely black and the white not totally white, but it's no problem to get them to photograph that way. They're heavier than plexi would be, but very rugged. I was lighting stuff on fire on the black granite a couple weeks ago and it didn't leave a mark
Found this place in a quick search. All kinds of acrylics and polys in any shape you want. White, black, colored, colored transparent, clear, frosted. All kinds of fun to be had:
http://www.estreetplastics.com/