600 F5.6 DO

Started 2 months ago | Discussions thread
AKRover Regular Member • Posts: 223
Re: 600 F5.6 DO

I forgot this extreme one of a bird I rarely encounter so I take what I can get.  This is cropped to 2700f/27 (!) with a noise equivalence of ISO 23,000 (FF equivalence) and only 3.8 megapixels left out of 32.  This is going too far in all categories by my usual limits (f/22, ISO 16,000, and 4 megapixels), but it is actually still very usable for smaller display sizes.  Imagine a half page in a small bird book, for example.  The goal in the field is always to get as close as possible as this would look much better at 900f/9 with an ISO of about 2500, but when I can't get close, the 400 DO is still very good, well, to 2200 anyway.  We all have to decide what we can and can't use.  This one is going in my collection, but I certainly don't consider it a great image.  It is just a good example for this thread showing what happens when we really push.

Scarlet Tanager

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