EdgeHD 8" SCT, ASIAIR and EAF - use 'reverse'

[Doogs38]

Hi Folks. Question for EdgeHD 8" owners who use an ASIAIR and EAF; do you use the 'reverse' option for focusing? Alex

[ChrisD]

I don't have an EdgeHD 8 but when I used an AsiAir on my C8 fitted with EAF I had reverse selected.

With reverse selected the final focus moves of the EAF were counter clockwise so the mirror was pushed up against gravity.

Chris

[Dave882]

A tad confused by Chris’s previous post, as I’ve found the opposite. To be sure I just went outside and observed the eaf doing an autofocus on my c14… I do NOT have the reverse option checked.

On engaging autofocus, first movement is clockwise, followed by anticlockwise and then incremental anticlockwise movements to build the v curve. Then clockwise and finally anticlockwise again to find focus point. Sooo, as the final movement is anticlockwise I would suggest that this is the correct setting.

[ChrisD]

I moved to NINA a while ago and can't double check my Asiair setup, but Dave882 is likely to be correct. I was sure I had the reverse set however I've been wrong before, and probably will be again. :)

Chris

[Doogs38]

Thanks Chris and Dave. This is the reason I asked; there are a lot of conflicting views. Interestingly, I finally had the opp to check my 8" EdgeHD tonight and actually *needed* reverse enabled to get the final movement of the focus travelling CCW ... go figure. :shrug: And I'm loath to play with it anymore tonight as my EdgeHD is guiding beautifully atm and the focus is spot on and holding yay! I will however look again tomorrow night to make sure I wasn't seeing things. Alex