Quote:
Originally Posted by Carl
Hi all
I'll do a test and rotate the camera and see what it does. However how on earth do you stop it, it almost renders a full frame camera useless anywhere near bright stars.
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Hi Carl,
Flocking and baffling are the only way to combat this. It might be something in the OTA/focuser/adapters that is causing the diffraction and the larger sensor picks it up, or there is a shiny bit in the 6D body to reflect the diffracted light back onto the sensor. (Unless...do you use different adapters for the two cameras?)
This may take some detective work to sort out, but is totally feasible. I did it with an artificial star indoors (lightbulb with 1 mm aperture) and an observation screen near the focal plane (see attachment) or just plain-old looking thru the OTA for rainbows coming off at glancing angles. Remember some black anodized Al can be very reflective at shallow angles.
Best,
EB