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Axiom 23mm

Started by roro444, 07/03/2003 07:55PM
Posted 07/03/2003 07:55PM Opening Post
I thought I'd share my first report observations, with my new Axiom 23 ,used with a skywatcher 150 refractor. I have an Ultima 30mm pl. ,and a TV 20mm pl., but found that the FOV with the TV, was too small for deep sky,and didn't matter too much for planetary veiwing, so I ordered the Axiom 23. Very nice eyepiece.Optics are great,70 deg.nice coatings,excellant finish,fold over rubber light gaurd. It gave me about the same fov as the 30 ultima with higher magnification.M6 and M7 filled out about the same FOV in both. Stars were pinpoints all the way across in both, with just a touch of elongation at the outer 10% of the Axiom.Both eyepieces showed a very dark background , with bright stars.It's a keeper, and now I have to get a wider fov in the 30 to 35mm range. Eyepiece chess has it's grip on me. Help! Roman.
Posted 07/04/2003 12:11AM #1
Roman,
I have a 23mm Axiom eyepiece that I use regularly in my 16" f4.5 Astrosystems dob. The edge exhibits significant astigmatism and curvature of the field at a short focal length. However, the on-axis performance is superb and typical of the ultima line of eyepieces. It is particularly useful for planetary observations when atmospheric conditions are less than optimal and during twilight. I also have a fine view of the veil nebula in this eyepiece with a lumicon oxygen filter.
Posted 07/05/2003 02:13PM #2
How is the eye relief on this ep?
Jason