I just saw this on ebay:
http://cgi.ebay.com.au/ws/eBayISAPI....MEWA%3AIT&rd=1
In my ED80, this would give a magnification of 8.3x and presumably a huge field of view.
The quality looks dubious, but I like the idea of an EP with a big focal length and huge field of view - who needs binos with a 72mm EP?!
Would this EP be usable/practical? Is there an issue with the size of the exit pupil?
Are there quality EPs available is such large focal lengths?