Hi everyone, back up here from the wildlife site to bother you guys again..I know you all missed me,,come on..!! Anyways. Went to shoot some butterflies to take my mind off of all this snow for awhile and was wondering this. A bunch of my shots were wonderful with the butterfly in sharp focus agains a pure black background, by accident, I assure you. So I checked on some of the other shots and the settings were all identical except I had auto iso on and that changed. Would that be the main reason I had black backgrounds and some weren't. I'll send over two pictures so you can see what I mean. Thanks in advance guys. Nice to be up here again with this forum. Learned tons in the wildlife forum, those guys are great also. These 2 photos were taken at f8 1/200 iso 500 and the other iso 200. both were at 200mm and a +1ev. I used my sb600 on board flash and actually think I had that dialed down a little so it wasn't overpowering, but I can't remember. Check them out for me please and let me know what you think...The first one was the iso 500.
Wow, my pictures look terrible on here. I've used the image size in pse10 and sized the at 900 on the long end. And then used my slider to put my file under 150. Boy they look horrid..Oh well, just wondering about the darkness of one and not the other...thanks
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#1. "RE: Hi again" | In response to Reply # 0CharlieS Registered since 29th Aug 2007Sun 12-Feb-12 02:12 AM
Since you used a flash, first shot is closer to the light source. Number two bg is far away so the flash doesn't illuminate it. Since your main light source in these shots is flash, the background is just underexposed.
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#2. "RE: Hi again" | In response to Reply # 0JosephK Nikonian since 17th Apr 2006Sun 12-Feb-12 03:26 AM
When using the flash, the aperture setting determines how much light is brought in from the background. In both shots you are using f/8, which is going to be rather restrictive.
In the first shot, since the background is close to the subject, the amount of light from the background is about the same as that of the subject. In the second shot, the background is far enough away that the light from the flash has lost a lot of its strength and the closed aperture filters out what little is coming back.
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