[76 mm / 3"] Great product, fit and finish are good. Bought for Celestron C6 SCT. Fits it like a glove. Handle-piggyback mount/rail is outstanding. Makes it easy to mount too. All metal construction and all attachments clear the tube rings. Nice and thick felt on rings. Even has a steel plate attached to the dovetail bar so when you mount it theres no marking up the aluminum dovetail bar. For anyone piggybacking a camera (or ?) the piggyback mounting rail is a real winner, especially when compaired to the one Celestron makes for this scope. Simple hex-head 1/4 20 bolt fit right in from below and locks bolt head into place, no twisting no tools needed to add anyting ti the mount.

[f/4.6] This is my first scope and am very happy with it. Not a fan of how the base assembles but it is sturdy after I applied glue to the joints. Tool-less mirror collimating is very handy. The red dot finder works well but kind of wish the brightness could go down a bit more. Unless you’re pointing at the moon, you can’t see anything but the dot in the viewfinder. Views are clear and after a little practice, easy to point and get on target. Looking forward to many nights observing with it.

[Alt-Azimuth] The Explore Scientific AR102 is an excellent intermediate scope. The 102mm glass catches a lot of light and provides a great deal of detail with a low Dawes limit. The controls are smooth and solid. Because of its' long focal length, a more substantial mount would be useful to prevent some wobbling during adjustments. I would definitely buy this scope again.

[76 mm / 3"] I have had this scope for a few weeks now and the optics are great. I do some visual but usually I do astrophotography using ASI AIR PLUS and a ZWO ASI 183MC camera. The images I get are great and stars are tack sharp with no color bloating or fringing.
Files are FITS files and as soon as I figure out how to use a good photo processing program my photos will look better. Only wish the focusing tube was longer so I dont need to ad so many adapters extensions to reach focus, But everyone go's thru that issue.Scope works great with a DSLR also. I am glad I bought it and B&H delivered fast and well packaged.

[Alt-Azimuth] The 114mm Reflector was very easy to set up and begin using. This alt-azimuth mount is so much simpler to use than an EQ mount. The lower power of the telescope was great for helping my parents to find objects easily. The entire setup is both very sturdy and easy to move. We were able to immediately start seeing images of the crescent moon and a very rough outline of the Andromeda Galaxy.

[f/4.6] This style of scope gives the largest aperture I could handle by myself without spending a lot of money. I had none of the problems people reported with the earlier version. Everything works well without any modifications needed. Set up is easy enough, but there are a number of loose parts to keep track of. I think it will work well for the kind of use I will give it- I camp out on a hilltop and leave my scope set up all night. This is not a scope that you would take outside for a brief viewing. The set up is too cumbersome for that.

The mass-produced, tube Dobs can be a little bit cheaper and require little set-up, but you would need to step down in size if you transport it and use it by yourself. The premium Dobs set up quickly and are light enough to let you get a bigger scope, but the cost is higher than I was willing to pay. This Explore Scientific is a big scope at a realistic price.

[350 mm] The telescope works great the images I see in it are the best I have seen ever . It is easy to assemble and not real heavy the only thing that I would do is make the instructions a little easier to understand when assembling the telescope

[Alt-Azimuth] This is a big light great telescope, arrived intact with very nice packaging, didn't had any issues with movement but counterweights is essential, collimation was very easy using laser colimator, focuser is smooth and able to hold my heavy explore scientific 30mm, replace the red dot finder with terlad , every thing worked just fine , only problem was small aluminium shaving pieces were everywhere, need to clean it good before first use.

[350 mm] Purchased the ED 102 triplet to expand my “grab and go” astronomy equipment inventory. Have an ED 80 Triplet, which is excellent, and wanted something with a little larger for deep sky photography on the road. Paired with ZWO AM3 ,ZWO ASI2600 Duo and ZWO ASIair Plus is a great working combination. ED 102 has great optics, and I had used a borrowed one in the past with excellent results. Looking forward to some clear nights to put the new ED 102 through its paces.

[f/4.6] I have no regrets. This is a really great filter.