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TeleVue Nagler Type 4 22mm

Tried my new 22mm Nagler last night and could certainly see why people have not be overly impressed. In my f4.5 10" Newt there was a significant amount of coma, even stars in the center of the field did not compress well.

Also had the 20mm Nagler T2 on hand and was anxious to cpmare them given remarks in some circles that the 20mm T2 was better (a classic in fact). In comparing the two eyepieces I did not see a significant improvement viewing through either. The 20mm T2 was sharper on axis, stars compressed better, but its off-axis performance was worse (apparently one of the much talked about trade-offs in eyepiece design). Contrast bewteen the two was very close with a slight edge for the 22mm T4. The object viewed was the Orion Nebula. I used it because it offered nebulosity and stars at the same time.

I agree with a previous review, asking someone to buy a paracorr for an eyepiece that is suppose be design to be sharp in fast scopes (and charging a hefty price for it) is not a real good endorsement of your own handy work.

I own many Televue eyepieces and love them, so this is not Televue bashing, but they really missed the mark with eyepiece. I will be keeping it until I can find another eyepiece in this focal length, with as wide a field.

Overall Rating: 6
Optics:7 Value:5
Weight: 4 (Unreliable Vote)
Date: 01/13/2002 01:06:02 am PST
By: Anonymous (xxx.xxx.58.120)
Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=55495

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