Bert,
I think you are referring to the various WASP arrays.
They each use 8 Canon 200mm f1.8 lenses with super duper back thinned E2V cameras
http://www.superwasp.org/technical.htm
Quote:
Originally Posted by avandonk
If you want the best lens ever built with a focal length of 200mm then the non IS Canon 200mm F1.8L is the lens to go for. It is no longer made and fetches a premium price in good nick. There is a setup with four or six? of these with astro detectors on a fork mount to do simultaneous overlapping fields to give really wide field surveys by professional astronomers. I will see if I can dig up the site.
Bert
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