I bought this so we could quickly align our 50mm hydroscope and main telescope. It's raining, so I only had a quick look at the goods. The lens is mounted in a threaded eyepiece in front of a reticle. It will be great for precise focus. I found 4-5 pieces of dirt between the lens and the crosshairs! The eyepiece unscrews completely so it's easy to manipulate, but it's disappointing.
Canon Nikon Sony Panasonic FujiFilm Olympus Pentax DSLR Camera Bag, Evecase Large Vintage Canvas Messenger SLR Shoulder Strap Case - Gray
45 Review
Protect Your Earbuds On-The-Go With Small And Portable EVA Case - Perfect For Airpods, USB Drives, Cables And More!
34 Review
Protective Silicone Cover For Samsung Galaxy Buds & Buds+, Shock Resistant With Carabiner And Fast Wireless Charging Compatibility - Fironst Case For Galaxy Earbuds 2020 (Black)
52 Review
Canvas Camera Case Bag With Shoulder Strap For DSLR/SLR Cameras - Black, Medium Size By Evecase
30 Review