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Equipment Discussions >> Eyepieces

Pages: 1
Scanning4Comets
Markus
*****

Reged: 12/26/04

18mm Radian.....
      #5839998 - 05/04/13 12:02 PM

Like to know what you think of this eyepiece. Looking for thoughts from people who have actually owned this and tried it...not speculation like : "Well I don't own this but..."

Trying to fill a gap between a 28mm ES and 10mm XW. Right now it looks like a 17mm Vixen LVW or an 18mm Radian will be replacing my 22mm Vixen LVW, which I am trying to trade ONLY for a 17mm LVW or 18mm Radian because one of these two will fit nicely between my 28mm ES 68, which is on the way, and my 10mm Pentax XW.

Cheers!


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george tatsis
professor emeritus
*****

Reged: 11/20/08

Loc: Flushing, NY - Europe
Re: 18mm Radian..... new [Re: Scanning4Comets]
      #5840147 - 05/04/13 01:47 PM

It's very sharp to the edge, like the whole line of course.I use it mostly for nebulae and galaxies with no complaints whatsoever.

I don't know how many Radian followers are still out there , but I for one remain a very fervent one!

George


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Jay_Bird
Carpal Tunnel
*****

Reged: 01/04/06

Loc: USA
Re: 18mm Radian..... new [Re: george tatsis]
      #5840198 - 05/04/13 02:24 PM

Me too George. But I can't help Markus firsthand as I only have a few from 6mm to 14mm, all keepers.

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Wallcreeper
sage


Reged: 02/07/10

Loc: NH
Re: 18mm Radian..... new [Re: george tatsis]
      #5840200 - 05/04/13 02:26 PM

It was my first high quality eyepiece and still one of my most used ones. I've had it for about 2 years now. It is very sharp and gives me an exit pupil of 3mm, which I happen to like observing at. You can get it used for about $150, which I think is a great deal.

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Hamsterdam
super member
*****

Reged: 03/23/11

Loc: smack dab in the middle of the...
Re: 18mm Radian..... new [Re: Jay_Bird]
      #5840202 - 05/04/13 02:27 PM

I have noticed Radians selling for much lower prices than Naglers on ebay. I know Naglers have a wider APOV, but are they that vastly superior?

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george tatsis
professor emeritus
*****

Reged: 11/20/08

Loc: Flushing, NY - Europe
Re: 18mm Radian..... new [Re: Hamsterdam]
      #5840308 - 05/04/13 03:33 PM

Quote:

I have noticed Radians selling for much lower prices than Naglers on ebay. I know Naglers have a wider APOV, but are they that vastly superior?




I find the Radian design sharper than the Nagler one and superior to the latter as well. The 82* FOV means nothing to me because the shorter eye relief of most Naglers does not allow one to enjoy the whole FOV. You always get the feeling that you are missing something.

The Radian on the other hand is a pleasure to view through, as it is sharper, flatter and let's not forget the abundance of focal lengths (3mm,4mm,5mm,6mm,8mm,10mm,12mm,14mm and 18mm)

George


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Scanning4Comets
Markus
*****

Reged: 12/26/04

Re: 18mm Radian..... new [Re: george tatsis]
      #5840511 - 05/04/13 05:52 PM

Thanks guys,

I'm going to trade my 22mm Vixen LVW for one of the two I mentioned, (A 17mm Vixen LVW or an 18mm Radian).

Cheers,


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bdcmd
sage
*****

Reged: 03/14/08

Loc: Glen Rose, Texas
Re: 18mm Radian..... new [Re: Scanning4Comets]
      #5840682 - 05/04/13 08:22 PM

Count me in as another unabashed fan of the Radian line. I use them frequently for extended viewing, due to the long, very comfortable eye relief. In general, I find them very sharp, edge to edge, in my scopes, which are all longish f/l compared to yours, but TV eyepieces are known to be well corrected down to f/4 or so. I also like the Instajust, never really had any problem with it, once I got used to the feel of it. For your purposes, I would think either would work. The LVW is slightly wider fov, the Radian should be cheaper, and easier to find used, I would think. Of all my Radians, I use the 18, 5 and 6 the most. The 18 works really well in Stellarvue F50 and F60 finders, also.

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GeneT
Ely Kid
*****

Reged: 11/07/08

Loc: South Texas
Re: 18mm Radian..... new [Re: Scanning4Comets]
      #5840699 - 05/04/13 08:37 PM

I owned one, and it is fine. Delos makes a 17.3 that you might consider. The 17 Nagler is also an excellent eyepiece.

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bremms
Carpal Tunnel
*****

Reged: 08/31/12

Loc: SC
Re: 18mm Radian..... new [Re: GeneT]
      #5840800 - 05/04/13 09:47 PM

My 6mm Radian and 8mm Radian are far better then the Vixen LV's I used to have. They are great eyepieces

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Mirzam
Post Laureate
*****

Reged: 04/01/08

Loc: Lovettsville, VA
Re: 18mm Radian..... new [Re: bremms]
      #5841220 - 05/05/13 07:36 AM

I've owned two 18 mm Radians. I think it is the best eyepiece of the Radian series. Very compact with good optical performance. You could spend a lot more and get a 17.3 mm Delos and it will be better. But the Radian 18 mm is a fine eyepiece.

JimC


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Pinbout
Postmaster
*****

Reged: 02/22/10

Loc: nj
Re: 18mm Radian..... new [Re: Scanning4Comets]
      #5841344 - 05/05/13 09:38 AM

I had one, it was a great eyepiece. but I didn't use it a lot because I would barlow my 35mm finder eyepiece then increase mag from there, so I wound up skipping that eyepiece a lot.

if I had two for my binoviewer, that would be a different story.


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Scanning4Comets
Markus
*****

Reged: 12/26/04

Re: 18mm Radian..... new [Re: Pinbout]
      #5841548 - 05/05/13 12:12 PM

Quote:

You could spend a lot more and get a 17.3 mm Delos and it will be better.




I have tried one in my fast scope. Edges are not good. I don't use a Paracorr, and I don't plan on getting one, so this EP is out for me. The Radian or the 17mm LVW will be better edge-wise, hence the reason I only mentioned the two for my scope. I know the Delos will have better throughput, but I don't want to spend any $$$. I am only trading my 22mm LVW as I said in my OP.

Quote:

I owned one, and it is fine. Delos makes a 17.3 that you might consider. The 17 Nagler is also an excellent eyepiece.




17mm Nag T4 is completely out of the question as it costs too much and I would need a Paracorr for it to perform right in my scope. I tried one and it was not happening.

Thanks for the tips though! They are always appreciated!

Cheers,


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coopman
Post Laureate
*****

Reged: 04/23/06

Loc: South Louisiana
Re: 18mm Radian..... new [Re: Scanning4Comets]
      #5842258 - 05/05/13 07:01 PM

The Hyperion 17mm is a good eyepiece also.

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Scanning4Comets
Markus
*****

Reged: 12/26/04

Re: 18mm Radian..... new [Re: coopman]
      #5842348 - 05/05/13 08:04 PM

Quote:

The Hyperion 17mm is a good eyepiece also.

--------------------
Regards,
Clay




Hi Clay,

I've owned this one also. While it has excellent eye relief and a fairly good central area, the edge in a fast scope wasn't good at all, so this one is out of the question too.

It looks like only a 17mm Vixen LVW or an 18mm Radian with be picked!

Thanks anyways,

Cheers,


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Rocketlawnchair
member


Reged: 06/17/11

Loc: Toronto, ON
Re: 18mm Radian..... new [Re: Scanning4Comets]
      #5843739 - 05/06/13 02:36 PM

I love mine, it's one of my most used eyepieces.

A number of people seem to dislike the insta-adjust, but I never use it because I view with my glasses on, so it stays flush.


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WesC
Carpal Tunnel
*****

Reged: 02/06/13

Loc: La Crescenta, CA
Re: 18mm Radian..... new [Re: Rocketlawnchair]
      #5844370 - 05/06/13 08:16 PM

Radians are great. I have a 6mm and really like it. And I compared it directly with a 6mm Delos and found it to be very nearly equal in sharpness and contrast... for half the cost!

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Jeff Gardner
member


Reged: 09/12/11

Re: 18mm Radian..... new [Re: WesC]
      #5846021 - 05/07/13 04:26 PM

The Radian series are great eyepieces, I wear eyeglasses and own most of the focal lengths. Another option would be a 68* 19mm Panoptic, one of the nicest in the series and readily available in the used market.

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george tatsis
professor emeritus
*****

Reged: 11/20/08

Loc: Flushing, NY - Europe
Re: 18mm Radian..... new [Re: WesC]
      #5846125 - 05/07/13 05:25 PM

Quote:

Radians are great. I have a 6mm and really like it. And I compared it directly with a 6mm Delos and found it to be very nearly equal in sharpness and contrast... for half the cost!




Have them all, and never get tired of praising them !

Regardless of what some people say, my tests show that when it comes to observing atmospheric features on Jupiter, whether it be Delos, Ethos, XWs,or less glass eyepieces, none of them beat the Radians or TV plossls.

My 7mm XL gets out of the case only when Saturn monopolizes the night sky.

George

Edited by george tatsis (05/07/13 05:26 PM)


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great_bear
scholastic sledgehammer


Reged: 07/05/09

Loc: Walthamstow, London, UK
Re: 18mm Radian..... new [Re: Jeff Gardner]
      #5846176 - 05/07/13 05:41 PM

I do like it - but I also wish it didn't make the moon look like someone's gone around the edge with a bright yellow highlighter pen.

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