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Old 26-05-2022, 03:58 PM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
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Quote:
Originally Posted by redbeard View Post
Hi Bojan, here is the pic.
The distance from the FR to the sensor on my rig is about 125mm. Would suggest even trying a few mm less as experiment. Not saying it's in the best position, but that is what the later photos uploaded earlier is using.

Damien, Thank you..
So, ~125 mm backfocus in your case and good result.. and mine is awful with this distance. Maybe they are different after all...


BUT - on the image it says 105 mm is sweet-spot for FR.


I will try to use Astrometry.net to see what is your camera FOV to calculate f/number.

Last edited by bojan; 26-05-2022 at 04:18 PM.
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