Wondering if anyone has tried both the Pentax SMC XL 40mm. and a TV 35mm. Pan. wondering which would be best suited for use with a C8 SCT. thank you.. JM
EP Comparison..
Started by Midnight Sun, 01/23/2004 06:25PM
Posted 01/23/2004 06:25PM
Opening Post
Posted 01/23/2004 06:31PM
#1
Like zis?
http://www.cloudynights.com/eyepieces/pentax40.htm
Either should be fabulous in a C8. The XL is a lot lighter and gives nearly the widest true field of view you can get in a 2" focuser. The 35mm Panoptic should be sharper at the edge of field, and the magnification will obviously be a little bit higher, which may or may not be important at your observing location. I recently had to abandon 40mm eyepieces entirely at my viewing location after realizing that I could pan over M1 without seeing it at that magnification. Didn't used to be that way, but this was an f/5 Newt. Giving up 40mm eyepieces for me is like you giving up 80mm eyepieces.
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Mike
http://www.cloudynights.com/eyepieces/pentax40.htm
Either should be fabulous in a C8. The XL is a lot lighter and gives nearly the widest true field of view you can get in a 2" focuser. The 35mm Panoptic should be sharper at the edge of field, and the magnification will obviously be a little bit higher, which may or may not be important at your observing location. I recently had to abandon 40mm eyepieces entirely at my viewing location after realizing that I could pan over M1 without seeing it at that magnification. Didn't used to be that way, but this was an f/5 Newt. Giving up 40mm eyepieces for me is like you giving up 80mm eyepieces.
--
Mike
Funding Member
