How Do I - Nagler types?

First, as Jon noted, it is cloudy here in San Diego. No problems with
Dew Tonight.

I asked on the local Astronomy Club board and the people who live
around me with SCT's were unanimous in their opinion that some dew
heating system is needed.

So, I guess it is off to OPT on Friday.

And, since I was going to be up there anyway...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.
I've liked the 2 TeleVue eyepieces I have so far (8mm Radian and 35mm
Panoptic) so I started looking at the TeleVue eyepieces in this range.

Well, there is a Radian, a Panoptic, and a bewildering array of
Naglers. Type 4? Type 5? 6? What do these all mean? I went to the
TeleVue website and got some basic information on lens elements but it
didn't really help me in trying to figure out what the differences
were or what the tradeoffs were.

HELP?

"Mark Smith" wrote in message

Well, there is a Radian, a Panoptic, and a bewildering array of
Naglers. Type 4? Type 5? 6? What do these all mean? I went to the
TeleVue website and got some basic information on lens elements but it
didn't really help me in trying to figure out what the differences
were or what the tradeoffs were.

HELP?

Hi Mark,

Its not as bad as it looks at first glance. The biggest thing may be
eyerelief requirements. If you wear glasses, you'll want to avoid the 15mm
Panoptic and head towards the Radian family.

The apperant field of view is the other bigggie. 60 degrees for the
Radians, 68 degrees for the Panoptics and 82 degrees for the Naglers. Its a
question of personal preference and price.

The different Nagler types are just design generations, the higher the type
designation, the more recent the design. But among the 4/5/6 groups, not
everyone agrees on performance or preference. Bottom line is they're all
quite nice in that focal length range.

Regards,
Ed T.

On Tue, 11 May 2004 01:51:16 GMT, "Edward"
wrote:


"Mark Smith" wrote in message

Well, there is a Radian, a Panoptic, and a bewildering array of
Naglers. Type 4? Type 5? 6? What do these all mean? I went to the
TeleVue website and got some basic information on lens elements but it
didn't really help me in trying to figure out what the differences
were or what the tradeoffs were.

HELP?

Hi Mark,

Its not as bad as it looks at first glance. The biggest thing may be
eyerelief requirements. If you wear glasses, you'll want to avoid the 15mm
Panoptic and head towards the Radian family.

I do wear glasses but usually remove them for viewing. I find I get a
better image without them and my correction isn't very severe (no
astigmatism).

"Mark Smith" wrote in message
...
On Tue, 11 May 2004 01:51:16 GMT, "Edward"
wrote:


"Mark Smith" wrote in message

Well, there is a Radian, a Panoptic, and a bewildering array of
Naglers. Type 4? Type 5? 6? What do these all mean? I went to the
TeleVue website and got some basic information on lens elements but it
didn't really help me in trying to figure out what the differences
were or what the tradeoffs were.

HELP?

Hi Mark,

Its not as bad as it looks at first glance. The biggest thing may be
eyerelief requirements. If you wear glasses, you'll want to avoid the
15mm
Panoptic and head towards the Radian family.

I do wear glasses but usually remove them for viewing. I find I get a
better image without them and my correction isn't very severe (no
astigmatism).

Or if you use them at public star parties where they people who look through
your telescope are apt to be wearing glasses. The Radians have a nice
feature which is an "eyeguard" that kind of guides you to look in the right
place and easily slides in for glasses wearers, and out for others.

"Mark Smith" wrote in message
...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.


Try the 14mm Pentax XW.

That comes from an owner of a 13mm Nagler T6.
--
-Stephen Paul

On Tue, 11 May 2004 17:24:26 -0400, Stephen Paul
wrote:

"Mark Smith" wrote in message
...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.


Try the 14mm Pentax XW.

That comes from an owner of a 13mm Nagler T6.
--
-Stephen Paul



Please expand upon this suggestion, and why an owner of a 13mm Nagler Type
6 would be making it.

Lawrence Sayre
--
------------------------------------------------------------------------
My philosophy, in essence, is the concept of man as
a moral being, with his own happiness as the moral
purpose of his life, with productive achievement as
his noblest activity, and reason as his only absolute.

Ayn Rand (in the appendix to 'Atlas Shrugged')
-----------------------------------------------------------------------

"Lawrence Sayre" wrote in message
newspr7uvtjais5tvhu@news-server...
On Tue, 11 May 2004 17:24:26 -0400, Stephen Paul
wrote:

"Mark Smith" wrote in message
...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.


Try the 14mm Pentax XW.

That comes from an owner of a 13mm Nagler T6.

Just a subjective observation, but having used the same focal length Pentax
and Radain side by side for a night, I would take the Radian in a
heartbeat.

Mark Smith wrote in message . ..
First, as Jon noted, it is cloudy here in San Diego. No problems with
Dew Tonight.

I asked on the local Astronomy Club board and the people who live
around me with SCT's were unanimous in their opinion that some dew
heating system is needed.

So, I guess it is off to OPT on Friday.

And, since I was going to be up there anyway...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.
I've liked the 2 TeleVue eyepieces I have so far (8mm Radian and 35mm
Panoptic) so I started looking at the TeleVue eyepieces in this range.

Well, there is a Radian, a Panoptic, and a bewildering array of
Naglers. Type 4? Type 5? 6? What do these all mean? I went to the
TeleVue website and got some basic information on lens elements but it
didn't really help me in trying to figure out what the differences
were or what the tradeoffs were.

HELP?

Try the Naglers and the Meade 14mm UWA. Also the Pentax 14mm. Since all
represent a decent investment, don't confine yourself to one brand, there is
no major benefit from "matching" sets. Buy whatever is providing you with the
best view.
-Rich

"Stephen Paul" wrote in message ...
"Mark Smith" wrote in message
...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.


Try the 14mm Pentax XW.

That comes from an owner of a 13mm Nagler T6.

Stephen,

I haven't used the newer Pentax XW, but had the 14 XL for a while. I
do know 4 folks who've used both the Pentax series and they're split
exaclty in half. Two prefer the XW's and two the XL's. I spent a
month comparing the 14 XL with a 13 NT6 in my 6" Dob and TV85. The
only difference I could see was a slight contrast advantage to the 13
T6. Other than the big size difference that is, which was also a
consideration in keeping the Nagler.

Clyde

On Tue, 11 May 2004 01:37:21 GMT, Mark Smith wrote:

First, as Jon noted, it is cloudy here in San Diego. No problems with
Dew Tonight.

I asked on the local Astronomy Club board and the people who live
around me with SCT's were unanimous in their opinion that some dew
heating system is needed.

So, I guess it is off to OPT on Friday.

And, since I was going to be up there anyway...

I find that I use my 15mm eyepiece a lot so I'm looking to upgrade it.
I've liked the 2 TeleVue eyepieces I have so far (8mm Radian and 35mm
Panoptic) so I started looking at the TeleVue eyepieces in this range.

Well, there is a Radian, a Panoptic, and a bewildering array of
Naglers. Type 4? Type 5? 6? What do these all mean? I went to the
TeleVue website and got some basic information on lens elements but it
didn't really help me in trying to figure out what the differences
were or what the tradeoffs were.

HELP?

What is a Nagler? What sort of name is that?