guillespiers

On 05/03/2020 at 03:05, noah4x4 said:

I bought my Hyperstar and Camera simultaneously and my (UK) retailer sensibly phoned Dean at Starizona to check if it needed a different adapter from tne Hyperstar in stock to achieve backfocus. It did. Four days later, I received the correct model shipped from the USA.

Pairing camera with the correct adapter appears crucial. A phone call to Starizina should assist you.

Thanks a lot! I recently contacted Starizona and they´ve started trying some things before trying another adapter. I personally think this will a new adapter is the adecuate solution.

Hi! I am having the exact same problem, the only difference is my hyperstar is v4, but the camera (ZWO 071 MC Cooled) and it´s backfocus are the same (17.5 mm). I´ve wasted hours trying to fix coma problems with this setup, but it´s impossible.

I took some screenshots from my laptop last night to show how serious my problem is: https://wp.me/a6SKCz-1t8

As you may see, the star (sirius), is perfectly round in the middle, but distorts a lot on the edges. Coma points towards the center of the sensor, from any direction. This is why I´m assuming spacing is the problem.

What should I do? How can I make sure I buy the correct spacer?

Thanks a lot, glad you solved your problem!