Anyone have any suggestions for the widest high quality field of view I can get in a 1.25" eyepiece?
Mary
Mary
wide-field 1.25 eyepiece?
Started by mary hofer, 09/01/2003 07:32PM
Posted 09/01/2003 07:32PM
Opening Post
Posted 09/01/2003 07:44PM
#1
The best I have seen is the 24mm Televue Panoptic. I have a pair for binoviewing and they are nearly perfect for me. Good eye relief, very sharp 68 deg AFOV and just a hint of color at the very edge.
But, if you have a slower scope, the 20mm Astrosystems KK Widescan III with a 29.5mm field stop might be worth a look. Reports indicate it has severe aberrations in faster scopes.
A good 32mm plossl or similar will have a 27mm or so field stop and give the same TFOV as the 24 Pan, just at 32mm instead of 24mm.
Harry Siebert has a 24.5mm Ultra ep with a 27mm field stop. It does not perform well at f.5 but looks pretty good at f/10.
That's all I know of. Others will help fill in the holes.
Tom
But, if you have a slower scope, the 20mm Astrosystems KK Widescan III with a 29.5mm field stop might be worth a look. Reports indicate it has severe aberrations in faster scopes.
A good 32mm plossl or similar will have a 27mm or so field stop and give the same TFOV as the 24 Pan, just at 32mm instead of 24mm.
Harry Siebert has a 24.5mm Ultra ep with a 27mm field stop. It does not perform well at f.5 but looks pretty good at f/10.
That's all I know of. Others will help fill in the holes.
Tom
Posted 09/02/2003 12:39AM
#2
The field stop on my 32mm Meade Series 4000 Super Plossl measures roughly 25mm. There are various 32mm 1.25" eyepieces that boast larger. Some don't even have a proper field stop and just use the barrel. I've only sampled a couple of those and they were generally unsatisfying. But, I've yet to see one that was as clear across the FOV as the Japanese made Meade Series 4000 Super Plossl 32mm. I sold a TV 40mm plossl to get this Meade SP and consider my viewing enjoyment & my eyepiece collection to have greatly improved by doing so. If you see one of these older Japanese made Meade Super Plossl 32mm coming available in the $65-$80 range, grab it! I like the standard Japanese made Meade Series 4000 26mm Super Plossl even better, and it winds up forsale a lot more often. The FOV isn't as large, but the contrast is generally better, and this focal length tends to work better in more scopes. The 26mm was recently rated well above many other competing eyepieces in a light transmission test posted to Cloudy Nights. Either or both of these should factor into your considerations.
Mike Swaim
Mike Swaim
Funding Member
