ZWO ASI 1.25" Low Profile Cover
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ZWO ASI 1.25" Low Profile CoverThe ASI 1.25-inch Low Profile Cover by ZWO can be used with almost any un-cooled ZWO ASI Camera to drastically reduce back focus to about 5 mm. This will permit you to focus while using the camera with very short scopes such as a PST.
OPT Product Number: ZWO-ASI-LPC125
With all the wild fire smoke, haze, high winds, and overcast skies, I really haven't had a good opportunity to put it to use. When I do, it'll be on a ZWO AS120 monochrome CMOS camera, riding piggy-back on a Coronado PST solar scope. And will pretty much be a dedicated solar set up. The one chance I had to use it proved successful, as it allows more back focus travel on the PST which really does help to reach prime focus.