themcfallguy

@Pitch Black Skies the video is video mode. the gain is 10, anything higher goes bright outline. exposure attempted was 1 sec and 5 sec.

remove the 11mm spacer?

Gave it a go this evening on the moon couldn't achieve focus probably too bright. Will go again tomorrow Watermark_20220113_2052_21.MP4

I also moved the focuser on the telescope all the way in. I have a Bahtinov Focus Mask in place with and without the white image.

@Budgie1 Thanks for the help. I made the changes mentioned see images below and reduced the gain to low then 0 but still a completely white image.

Hi, As a newbie I'm trying to achieve focus and thought perhaps best to do this during the day against some rooftops. With or without filters it's completely white image. Focal Length 420 on 72ed. Gain M = 100 setup includes ASI AIR running live video, focus or exposures. Skywatcher 72ED Reducer for 72ED MFW ZWO533MCPRO sitting on star adventurer2 Also a Guide Scope 50ED Reducer for 50ED ZWO 120 MM Mini I understand I need to first achieve back focus which is either 55mm or 56mm. I've tried a number of adapters but the image is not focused and becoming very time consuming any help is much appreciated.