Hello fellow Astro nerds! It’s been a while but I’m getting back into the swing of things after having another baby. In my post birth high ( yes I have that as a father) I bought a celstron edgehd 9.25 with the .7 focal reducer in the delivery room. After a few weeks of clouds I finally decided to get it out. When putting the focal reducer on, I’m having difficulties finding the correct spacers to get my oag-l, 2” filter wheel and my zwo 2600mm pro attached correctly. I think the .7 reducer has a m68 connection and the oag-l is a m48 connection. Does anyone have their exact setup and their known spacers to make it easy for me? Thanks, cs!
Celstron edgehd 9.25 w/ .7 reducer spacing guidance needed
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I do, sorry I lost the written details. I can send you a photo to your email if you like. Generally, the Toal distance for me from the .7x reducer to the image chip is 157mm.
Here’s my set up:
C9.25 OTA—.7x reducer—Primaluce Esatto Electronic Focuser—ZWO 2” OAFG—ZWO 2” 7 position 2” filter wheel—ASI 2600MM Pro. As my imaging train on this set up is currently on my bench I take a photo for you.
Jeff
Jeff Bennett · Apr 11, 2026 at 02:49 AM
I do, sorry I lost the written details. I can send you a photo to your email if you like. Generally, the Toal distance for me from the .7x reducer to the image chip is 157mm.
Here’s my set up:
C9.25 OTA—.7x reducer—Primaluce Esatto Electronic Focuser—ZWO 2” OAFG—ZWO 2” 7 position 2” filter wheel—ASI 2600MM Pro. As my imaging train on this set up is currently on my bench I take a photo for you.
Jeff
Thanks Jeff, a pic would really help. Do you like the Primaluce Esatto Electronic Focuser? I saw it goes well with the edgehd but I have a zwo eaf.
Love the Essay 2”. How can upload a photo here?
📷 IMG_3599.jpeg
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