University Optics Konïg MK-70 25mm, 70º:
http://www.cloudynights.com/documents/konig.pdf
http://www.excelsis.com/1.0/entry/university-optics-konig-mk-70-25mm-22-117.html?PHPSESSID=6ae5e99b51500f071a13ab29cf48f83a
http://www.excelsis.com/1.0/entry/university-optics-konig-mk-70-25mm-22-117.html?PHPSESSID=6ae5e99b51500f071a13ab29cf48f83a
Vixen LV 30mm 60º
Astro-Tech Titan Type II ED 40mm 68º:
Televue Radian 14mm 60º:
http://www.televue.com/engine/TV3_page.asp?id=50&Tab=EP_ERD-14.0
http://www.televue.com/engine/TV3_page.asp?id=50&Tab=EP_ERD-14.0
University Optics Konïg MK-70 25mm, 70º:
Stats:
Stats:
Type: Misc Wide Angle / Multi Coated
Focal: 25mm
Barrel size: 2"
aFOV: 70º
Field Stop: 29mm
Eye Lens: 24.5mm
Eye relief: 20mm
Elements: 7
ExitPupilsf5=5,f7=3.6mm,f10=2.5
I tested it last night. I think thast it is the most versatile of all my eyepieces.
Astro-Tech Titan Type II ED 40mm 68º:
Stats:
Type:
Focal: 40mm
Barrel size: 2"
aFOV: 68º
Field Stop: 29mm
Eye Lens: 32mm
Eye relief: 14mm
Elements: 6
This is a 40mm 2" Wide Field with 68º AFOV. It's clear that it could not be as a 100º AFOV, but I guess it is enough for a 40mm.
Vixen LV 30mm 60º:
Stats:
Type:
Focal: 30mm
Barrel size: 2"
aFOV: 60º
Field Stop: 31,4mm
Eye Lens: ?
Eye relief: 20mm
Elements: 7
As well as the Astro-tech, a 60º AFOV for an 30mm should be enough, at least for my (almost) 37 years old eyes :)
Televue Radian 14mm 60º:
Stats:
Type: Radian
Focal: 14mm
Barrel size: 1,25"
aFOV: 60º
Field Stop: 14,4mm
Eye Lens: ?
Eye relief: 20mm
Elements: 6
To be tested......
Keep in mind that all of them will be used (for the moment) with a LX90 8", with a focal length of 2003mm and f/10.