TeleVue Nagler Type 4 22mm

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TeleVue Nagler Type 4 22mm
Awsome eyepiece. It provides jaw dropping views. It is the single most impressive eyepiece I have ever looked through. Even the older 20mm Nagler cannot compare. Excellent contrast, excellent eye relief, excellent edge correction; every thing is just EXCELLENT!

Want to see an awsome sight? Put your Ultrablock or O-III filter on this baby and look at the Orion Nebula. You are in for a treat. I have a 6" Maksutov, and even a C-11 (using an excellent Plossl) could not keep up. Whisps of nebulosity were everywhere. One viewing buddy (who vowed not to by the 22mm) just bought the eyepiece on this view alone.

Everything that you ever heard about the 20mm Nagler just got better. Not just a little bit better, but MUCH better. The new 22mm even weighs about a pound less than the 20mm.

If you can afford it, grab it!

Overall Rating: 10
Weight: 3 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43527

TeleVue Nagler Type 4 22mm
The best of the best

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43528

TeleVue Nagler Type 4 22mm
This eyepiece while excellent in some respects,falls a bit short in others. First it's strengths: contrast, light transmission, and relatively light weight.
Drawbacks (IMO): Instadjust, just don't like it. Sensitivity to proper eye placement. Edge correction is noticeably inferior to the 20mm Nagler in a fast scope.

Overall Rating: 7
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43529

TeleVue Nagler Type 4 22mm
Low brightness and contrast. Poor physical design, hangs up on removal from focuser, eyeshield don't work. Poor for the price.

Overall Rating: 4
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43530

TeleVue Nagler Type 4 22mm
Outstanding on my TeleVue 85. Panoramic view of Orion Nebula, clusters. Exceedingly well made, bright, great contrast and sharp over entire FOV. If you can afford it, you will not be disappointed. If you can't, save up!

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43531

TeleVue Nagler Type 4 22mm
This is a great eyepiece. Sharp to the edge. Wonderful contrast. Pricey but worth it.

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43532

TeleVue Nagler Type 4 22mm
A rating of 10 isn't high enough. I think the Panotptic 35mm is a ten & I like this eyepiece better. This is the eyepiece I use the most...by far! Used on my 8" SCT with a f/6.3 focal reducer, it completely transforms the scope into a new instrument. Detail on deep-sky objects just spills from the eyepiece, but with the feeling of a richfield scope. Stars are pinpoints to the edge of the FOV. The 82 degree Apparent FOV gives it a True FOV close to that of the Panoptic 35mm, but with a higher mag. There is very, very little of the "kidney beaning" effect that was more prominent in the earlier versions, and the "click-stop" eyeguard is a real plus. The eye-relief doesn't get any better. Incredible and worth every last cent.

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43533

TeleVue Nagler Type 4 22mm
This is an impressive eyepiece. However, the Instajust is annoying. Of the seven click stops, only the 2nd and 3rd up are of any use for me. The off-axis sharpness is not that good in a TV-85; better in an f/10 SCT. Eye position is fairly critical. The field lens is very convex and sits very close to the bottom of the barrel - be careful! The spacewalk effect is excellent, but overall I expected better performance for the price.

Overall Rating: 7
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43534

TeleVue Nagler Type 4 22mm
simply awesome- the best views through my AP130

Overall Rating: 10
Weight: 1 (Unreliable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43535

TeleVue Nagler Type 4 22mm
Field so wide it displays the coma common to SCT's, so not the fault of the eyepiece. I'd rate it perfect were it not for 2 issues: 1.You have to
hold your head VERY steady to avoid the "kidney bean effect" and 2.the
Insta-just eyepiece cup is terrible(not only is it disconcertingly
prone to sliding against its stop when you pick it up, but it is also
prone to moving in when you press your eye against the rubber cup to
see more of the field). Some users have installed a set screw to lock
the slider in place. I've got a better idea-eliminate it and reduce
the price and weight.

Overall Rating: 8
Weight: 1 (Unreliable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43537

TeleVue Nagler Type 4 22mm
This is a phenomenal medium power eyepiece when used with my 9" F13.5 Rutten Maksutov scope. The most memorial view of M42 ever had was with this combination from a dark site. The contrast, field flatness, resolution, and wide field easily outclassed several nearby 12-16 inch dobs. The eyepiece is relatively light with much less kidney-beaning than I remember with a previously owned 13mm Nagler. Did not find eye position much of a problem. This eyepiece is also useful for daytime use unlike some of the other Naglers.

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43538

TeleVue Nagler Type 4 22mm
I don't own one, but I am curious why the last person called it "useless overpriced crap" with a 1 rating. Please respond.

Overall Rating: No Vote
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TeleVue Nagler Type 4 22mm
Love this eyepiece. Very sharp images, great contrast, I also really like the instajust eyeguard feature. My most used eyepiece (12" Meade LX200)

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43541

TeleVue Nagler Type 4 22mm
My favorite most-used low power eyepiece! I can't say enough about it! I get 55x on my 8" f/6 with this one. Jaw-dropping views of everything. Last night I looked at Saturn. The planet was surrounded by so much FOV, I got the feeling I was in space. Saturn was small, but the Cassini Division was visible with some effort. This attests to the sharpness of this phenomenal eyepiece.

Pinpoint stars to edge of massive FOV. Instadajust is critical to eye placement, otherwise you will get blacking out!

In one word, awesome. Expensive but you gotta have it!!!

Overall Rating: 10
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43542

TeleVue Nagler Type 4 22mm
Just one more thing. This eyepiece requires the most focuser in-travel I have yet seen. If you're building your own Newt, account for at least 0.5" focuser in-travel. It's significantly more than the Panoptic 35.

Overall Rating: No Vote
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TeleVue Nagler Type 4 22mm
I love my 9mm and 16mm Nagler. I built a new scope and wished to get the field back I lost from the longer focal length from the larger dobs. I ordered the type 4 22mm Nagler. I felt as if I had been ripped off! The edge showed way to much coma, the lens was heavy (I knew when I ordered the thing), and the instajust sucked! It feels as if the thing is about to drop every time I picked it up. With the coma the views are not that great even in an f/5.

I phoned Televue and they suggest getting a Paracorr, what another $280 on something this expensive anyway. Now I here that I get to shell out $280 more, cut my truss polls, and rebalance my scope, just to get a $445 lens to be sharp at the edges! Wow!!! Televue need to heavily advertise this one!

I am doing all the above but I’ll loose some of the field in the extra 15% magnification! Blows the purpose of going to the wide field to start with. I’ll post the results when done. Don’t get this one unless you have a slower than f/5, a Paracorr, or the extra $280 to buy one!

Overall Rating: 3
Weight: 6 (Veritable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43544 

If you see coma, it's almost certainly down to the telescope. I'm not saying that you have a bad primaray, but the coma on an F/4 Newton is HUGE. No eyepiece will correct for that; they have not been designed to do that. A paracorr has.

Good luck,

Marc
TeleVue Nagler Type 4 22mm
Regarding the 22mm Nagler T4, this eyepiece is something of a disappointment, at least when used in my faster scopes. Having first purchased a 12mm T4, I expected the same qualities from this one. Instead, stars were quite comatic around the outer 1/3 of the FOV. Being quite expensive, I found this unacceptable for an eyepiece line claimed to be corrected down to f/4. This one is not.

However, all is well when used with a Paracorr which corrects the view to almost perfect. Also, the 22mm works well with the 4x Powermate. If you have a fast scope (not sure at what f/ratio the problems begin to arise) and want to use the 22mm T4, you need a coma corrector. At more than $730 for the 22mm and a Paracorr with the tuneable top, this is an expensive combination. Still, the views ARE excellent once you have what you need. The 17mm does not seem to have these problems to the same extent, but I use it with the Paracorr anyway, now that I have one.

Conclusions: Too expensive, not well-corrected at faster f/ratios, requires a Paracorr, Powermates well, stunning widefield views once everything is in place. I'd give it a "6" or "7" if it weren't for the final views attainable. A reluctant "8".

Overall Rating: 8
Weight: 7 (Veritable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=43545

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:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=55495

TeleVue Nagler Type 4 22mm
It is hard to believe the manufacturer continues to advertise this eyepiece is extremely sharp in fast scopes, even if it has already been proven otherwise, as stated bellow.

Overall Rating: No Vote
Weight: 1 (Unreliable Vote)
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=55923

TeleVue Nagler Type 4 22mm
On the 22mm T4 and coma: That an eyepiece is sharp for a fast scope generally applies only to a well-corrected scope, like a fast apochromatic refractor. A fast Newtonian is not a well-corrected scope, although you can correct it with a coma corrector. You could theorectically create an eyepiece designed specifically for fast Newtonians, but then it would not be sharp in other scopes. The 22mm T4 is especially sensitive to coma because of its wide field at moderate power. Lower power eyepieces with the same true field seem less affected because you are not magnifying the stars as much. Eyepieces with the same moderate power but with smaller apparent and true fields seem less affected because coma increases as you move away from the center of the field.

Overall Rating: No Vote
Weight: 1 (Unreliable Vote)
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