Quote:
Originally Posted by Kunama
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Mechanically the build quality of the Denks, Baaders and Televues is better than the William Optics etc. but the images are very good in any of them.
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If they are collimated. Which cheaper units often aren't (and some more expensive ones too). But big difference is when you need to collimate - my Denk II is very easy to do, and holds it well afterwards more or less forever. WO (and clones) are nearly impossible to collimate.
Disclaimer - I often use very short focal eyepieces in bino which makes colimation hypercritical. Also, simple sidescrew eyepiece lock (as on cheaper units) will throw off the collimation again. Proper collet type holder is a
must IMHO in a binoviewer.