Try to keep the ISO as low as possible on overcast days by adjusting the shutter speed and aperture setting. The tripod and cable release will certainly help. If it is a rare bird or activity that you have captured, you just have to make do with what you got. No one here is going to complain.
I have put in enough shutter time with my various camera, lens, and teleconverter combinations to know high how I can push the ISO settings on each one in various lighting conditions and still get a decent photo after cropping.
I have put in enough shutter time with my various camera, lens, and teleconverter combinations to know high how I can push the ISO settings on each one in various lighting conditions and still get a decent photo after cropping.
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