{"id":473,"date":"2009-02-02T04:23:00","date_gmt":"2009-02-02T10:23:00","guid":{"rendered":"http:\/\/www.planetneil.com\/tangents\/?p=473"},"modified":"2020-06-13T18:21:48","modified_gmt":"2020-06-13T22:21:48","slug":"ambient-exposure-with-ttl-flash","status":"publish","type":"post","link":"https:\/\/neilvn.com\/tangents\/ambient-exposure-with-ttl-flash\/","title":{"rendered":"Ambient exposure with TTL flash"},"content":{"rendered":"

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Ambient exposure with TTL flash<\/h1>\n

A question I was asked about exposure metering in relation to flash:<\/p>\n

Let’s say I use Manual mode on my camera, and have adjust my aperture and shutter speed so that my meter indicator have returned to zero. At this point I know at least i have “correct exposure”. I would either choose to over expose and under expose depend on circumstances.<\/p>\n

My question is, will my picture get over exposed if fire my strobe even thought my indicator already point to zero ? I have no idea how should I integrate flash setting into my routine I always use when in M mode.\u00a0 I did not see u mentioning about the exposure indicator in your blog.<\/p><\/blockquote>\n

This is a tough one to give a definitive answer to.\u00a0 Firstly, simply dialing your camera’s meter to zero doesn’t necessarily mean your exposure is correct. This article on\u00a0exposure metering<\/a>\u00a0will explain some of this.\u00a0 Sometimes your camera’s meter need to show over, or sometimes under, for you to have correct exposure.\u00a0 The essential concept here is that you need to expose for your subject, or a specific part of your scene.<\/p>\n

One of the instances where just zeroing your camera’s meter\u00a0would very likely\u00a0not give you correct exposure, would be with a strongly back-lit scene.\u00a0 What makes it even more difficult is that\u00a0the camera’s meter could then show you different settings depending on your composition.\u00a0 If you zoom in and out or shoot vertically or horizontally, your camera’s meter will tell you different things.<\/p>\n

So let’s look at the photo at the top as an example and see where it leads us …<\/p>\n

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This near-candid portrait of the groom will give some insight into the thought process.\u00a0 But, do keep in mind that\u00a0this would be but one\u00a0example out of many\u00a0possibilities we can encounter.\u00a0 We need to be flexible.<\/p>\n