Great service, fast delivery
It's nice but...
Hi, I like it lots, the optics are great. The finder scope base however is some proprietary item that needs to be dealt with though. I had to buy an adapter to fit my other finder scopes to it. Waiting around for those parts to show up was less than fun. Also, the scope is far too short to use it for straight through viewing (without a right angle). I added 3 extension tubes and it still didn't come into focus. And with 3 extension tubes it looked ridiculous anyways, to the point of even not being usable that way. Otherwise it's a fine scope.
Explore Scientific 102ED
Scope is a great value compared to other high end APO's. Collimation was spot on out of the box. Build quality is excellent. Color correction is very good with no CA noticeable on bright objects.
Great for visual
Very frustrating. The scope is great for using an eyepiece, very difficult to use for photography. The problem is that when not using the diagonal, you must use 3 extension tubes to obtain focus, which makes the camera at the end of the string unstable and it vibrates. I do not recommend this scope for photography.
Telescope Number 4 from OPT ... Great products. Great People.
This ED102 APO gives me photos that looks like they were captured using an 8 inch aperture instead of a 4 inch. Very happy with it. This is my fourth telescope from OPT and every one of them has been great. But its the people and the service and technical expertise that sets them apart from other sources. William Apple