Imagining Train EdgeHD C11

privateer

I recently purchased the EFW and need to some help with the backfocus on my EdgeHD11. With the C11 backfocus being 146mm I have the .7X reducer, standard celestron T-adapter (if needed), EFW, ASI290MM. What kind of additional spacing would be required for this imaging train? 16.5mm?

Cheers

Support@ZWO

Hi privateer

I don't know how length of celestron T adapter, If you can get the number, I will do the math!

maudy

The Celestron T-Adapter is ~ 91.05mm per https://s3.amazonaws.com/celestron-site-support-files/support_files/edgehd_whitepaper_final.pdf

I hope this helps.