WOW am am getting more and more amazed at the size of these eyepieces. I had the pleasure of using a 14mm TV Radian on my scope and also another one which I cannot remember (I know it cost about $900) It was huge, made my scope fall on its end it was heavy. Though not hard to do with bearings on the alt axis. Amazing views, I was ready to trade my scope in until I saw through it with these and it wasn't even collimated properly. Made my eyepieces look like those cheapies you get with tasco refractors. Urk