Explore Scientific 9mm 120°

 Info  Votes  Messages  More Stats  Up One Level
Brand and Model:Explore Scientific 9mm 120°
Price ($USD):995
Type:Hyperwide Angle
Focal Length:9 mm
Barrel Size:2
Apparent FOV:99.9 degrees
Field Stop Dia.:22.3 mm
Eye Relief:6 mm
Weight (lbs):2.8
Description:This an amazing eyepiece, advertised as having an apparent field of 120°. The actual apparent field is about 140°. There is NO COMA in my 22" f/4, stars are as sharp at the edge as at the center. Excellent light throughput, excellent ocntrast. There is lateral color in the outer 10° of the field for bright objects (Jupiter turns white, but shape is normal and bands still clearly visible).Comparison to 8mm Delos - stars slightly sharper in the Delos.

Vote Highlights Vote
No votes found!
Click here to see all votes (0 total)
[Click Here to Login]
Don't have a login? Register!