[ausastronomer (John Bambury)]

Originally Posted by astro744

The 41mm Panoptic can be adjusted, see http://www.televue.com/pdf/literatur...20Panoptic.pdf

The following is listed in the Tele Vue manuals section but not in the product listing so I'm not sure if it is still available available for the 35mm Panoptic http://www.televue.com/pdf/literatur...20Extender.pdf

Didn't know you could adjust the 41mm Panoptic, I only used one once and it was clearly not adjusted to suit me, notwithstanding I wear glasses. The eye relief was horribly excessive and I have no doubt the eyepiece owner did not know it was adjustable because if he did, he clearly would not have had it adjusted how he did.

The eyeguard extender for the 35mm Panoptic whether available or not is academic because none of the people I know who own one, have the extender fitted. I can't see myself buying one to use with my friends eyepieces, when clearly my 31mm Nagler is a better eyepiece anyway. Consequently, I find the eye relief excessive and you really need to concentrate when using it to avoid blackouts. It is clearly IMO much harder to use than the Pentax XW's, which have a totally progressive eye relief adjustment that you don't have to buy as an afterthought and extra.

Cheers,
John B