gvarner wrote:
What are your tricks for getting the exposure right on BIFs? They’re such a small target and the overall scene lighting may not be the way to go. Or you could have high contrast between the bird and the background. Your experience would be good to know.
I shoot birds in flight in Florida. First of all I mostly use Manual exposure. And I usually shoot with the sun coming over my shoulder and lighting the bird head on.
I take a reading of a white bird, then I usually go two stops under to get feather detail, I usually leave this exposure even for grayish birds. Now that I have my BASE exposure, I can shoot the birds either in the air or on branches as long as my lighting does not change the exposure will be spot on.
In the first image below, (a Great Blue Heron doing a mating call) I have already taken my base exposure, notice that the background is much brighter, but my bird is exposed properly. Keep in mind that as you shoot, if the light changes, you must constantly redo your BASE exposure, for instance, I start shooting around first light in Florida wetlands. My BASE exposure at 7 AM is much different than my BASE exposure at say 9 AM, especially if there is a clear sky, it will be much brighter at 9 than at 7 and you have to constantly adjust your BASE exposure.
Lots of folks will use auto ISO, I do not, because, if the bird is flying from shadow to light, the meter can still be fooled and this will cause your image will NOT be properly exposed. So I shoot manual everything unless my lighting is going to change rapidly without notice.
In the second example, shot early in the morning, I have already done my BASE exposure off a white bird, in this case, a Great Egret in mating colors. Note the dark background, but everything the sun is hitting is exposed OK. If I had shot in Aperture, Shutter, or another automatic setting, my bird would have been washed out and the background would have been brighter.
It also takes a lot of time to adjust your manual exposure to the settings that will look right to you.
But when using manual, if the bird takes off into a bright sky, your BASE exposure will work fine and the bird will be properly exposed.
So, it is a skill and most skills take practice, now that you have BASE knowledge, go and out and have some fun.
OK, here is a tip, if you have no bird yet, but if you see any grass that is being lite the same way as the rest of the scene in front of you, take a manual exposure off the green grass, green grass reflects the sun very close to what a gray card would reflect, so, take the manual exposure off the green grass, then when a bird flies by, your exposure should be close to perfect.
Second tip, this one is simple, I call it the 45/45 rule, when your out in the field, aim your camera at the sky where birds will be flying, again, I usually point it at the sky with the sun coming from behind me, aim your camera 45% to one side and 45% up into the clear sky, I like then to set may camera manually 2 stops over exposed, now your ready for birds to fly by, keep that setting and your birds should look good, always always shoot in RAW so you can make slight changes in post later.
Good luck and keep on shooting until the end.