Swarovksi ATX 65mm or ATS 80 HD (1 Viewer)

problem is, the larger the zoom range, the larger the compromises you have to accept.

we're just not going to get huge zooms, large FOV's, flat fields etc - some of these are a trade off against each other. That's where I think the Zeiss probably fails you have noted..

If you want something head upwards of 70-80x zoom, you should consider the Leica or Kowa - both have extenders that you add with minimal loss of resolution. The Kowa's 1.6x extenders can be stacked so the 25-60x becomes 40-96x and with a second extender its 64-154x

From what I've read on an astronomy forum - the image is still usable.....

cheers
Jeelan

In my humble opinion I think the atx line is far superior the ats. If you could scrape together a few extra bucks to get the atx 85 mm objective there would be no argument. Besides the weight and cost penalty of the atx.