It was afternoon sun lighting up the bird which hung around scanning the bushes, waiting for a hidden House Sparrow to flinch, none did this time. I'll be trying it out for real this coming week, possibly in a hide on my hide clamp.
None of the photos are cropped, but resized using a batch tool to 1200 pixels from 4608. Video is at 4K UHD, 3840 by 2160 at 30 fps and 40 Mbps (original was 80 Mbps).
Sparrowhawk long test video with different zoom, focus affected due to double glazing, click here
Short video slowed down to increase viewing time, click here
A later video in poorer light, yes it is the same bird preening, click here I forgot to mute the sound and I was leaning against my heating boiler
This one is at an equivalent of 1800mm at 1/500, F6.3, ISO 200 and EV -1, effectively 75 times zoom, and through glass!
This is 650mm
And this one at 533mm
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