 Peggy Wolff |
light meters, strobe lights and digital camera I just got my new Canon 10D yesterday, it was a HAPPY HAPPY day! This is my first attempt at digital photography. I set up my lights in my studio, took the light reading and shot away. Some were alright when doing portrait but then I tried to do some macro work and they came back very over exposed. I bracketed and changed the exposer by 2 stops and then they were fine. Why would some be alright and then some not? I have 3 photo shoots next week and need to feel confident about my light. Any suggestions as to what I am doing wrong? I would really appreciate some expertise on this! Thank you PS, when I bought a new light meter last year, I bought one that could be used for digital. Do I need to change some setting?
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Jon Close |
When doing the macro shots, did you move your lights closer to the subject, but use the same aperture/shutter you used for the portrait shots? If so, then that's the problem. Light intensity varies with the inverse square of the light source to subject distance. For example, if the lights were 6 ft from your protrait subjects but moved to just 3 ft from your macro subject, the lighting on the latter is 4x brighter (ie. = +2 stops).
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Peggy Wolff |
Hi Jon, I did move the lights but I also re metered and set the camera to the new settings that the light meter registered at.
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Jon Close |
Hmmm. I am assuming you are using a separate flash meter and studio lights and not an on-camera speedlight, right? If so, then I don't know what the problem is. If on-camera speedlight, then the problem is it cannot properly control flash output at flash to subject distances shorter than about 4 ft and you'll need to set it for fixed output and set the aperture per the guidenumber formula.
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Peggy Wolff |
I appreciate your help Jon. The lights are seperate strobe lights. I just need to go thru my 2 books that came with this camera page by page. lol I am feeling a little over whelmed!
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- Gregory LaGrange Contact Gregory LaGrange Gregory LaGrange's Gallery |
Did you hold the meter in the exact spot the object was when you metered for macro, or did you hold it like a foot away
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Peggy Wolff |
I held it in the exact spot. I first metered in the shadow and then double checked the lighter area to make sure there was not a difference.
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- Gregory LaGrange Contact Gregory LaGrange Gregory LaGrange's Gallery |
not following how you say you didn't get a difference between shadow and lighter side. You sure you didn't use your shadow side exposure as the exposure for the lighted side?
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