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Originally Posted by casstony
36mm clear aperture on the #1A skylight will limit your potential field on a 10" sct. I have one hibernating in the drawer after I figured out it's not really of much use, unless you're changing gear over in an insect swarm or dust storm. Makes a good "made in Japan" dust cap for putting a scope in storage.
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I have the Celestron Skylight Filter (#93621) permanently in place at the back of my 9.25.
Will I experience similar problems of potential field being limited?
The marketing hype claims it "Improves color saturation and balance" and "Can be used in conjunction with most Celestron photo/visual accessories"
Is this all just bulldust or what?
I have it in place to prevent dust entering the OTA