My phone is super tight and I can barely get it in and out. I'm sure it may loosen up over time. That's a good idea with the shoe goo or silicone.
Mine is probably about 3/4" deep. I started with a longer piece and ended up cutting it down to get the phone closer to the optics.How deep is your coupler that goes over the eyepiece?
1/2”, 1”?
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