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Eyepieces
Discuss telescope eyepieces.
Topics: 304

304 Topics

3677 Posts

Last post Re: What is your most overrat…
by DeanD View the latest post
Tue Apr 22, 2025 10:16 am
Binoculars
Discuss binoculars.
Topics: 146

146 Topics

1550 Posts

Last post Re: Binoculars used for anyth…
by Nakedgun View the latest post
Mon Apr 21, 2025 11:54 pm
General Optics
Discussion of optical systems and their characteristics.
Topics: 39

39 Topics

452 Posts

Last post Re: Filters
by Mike Q View the latest post
Mon Mar 10, 2025 11:25 pm

Active topics

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The 1X / 2X / 3X Magnification Protocol for eyepiece set selection

Last post by Caldwell 14 « Mon Nov 25, 2024 7:30 pm
Replies: 30
by Don Pensack » Tue May 25, 2021 10:29 pm
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First post

I wrote this a bit over 15 years ago. It still works today to yield a very basic set on which to build:

1X / 2X / 3X Magnification Protocol for...

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Many thanks Don, an excellent article
30 Replies

36868 Views

Last post by Caldwell 14
Mon Nov 25, 2024 7:30 pm
Creating a basic set of eyepieces for your new telescope

Last post by Caldwell 14 « Thu Nov 21, 2024 7:32 pm
Replies: 77
by Lady Fraktor » Thu May 23, 2019 2:34 am
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First post

One of the most asked questions by beginners, What eyepieces should I get?

There is always a lot of discussion from people on what eyepieces to get...

Last post

Excellent article
77 Replies

137155 Views

Last post by Caldwell 14
Thu Nov 21, 2024 7:32 pm
Evolution of Eyepieces by Chris Lord

Last post by Graeme1858 « Sat Sep 07, 2024 7:57 am
Replies: 20
by notFritzArgelander » Sun Oct 27, 2019 2:36 am
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First post

I just brought this over from the old place. I suggest we make this sticky?

Brayebrook Observatory EVOLUTION of EYEPIECES

Link to the document pdf

Last post

Link to the pdf in the OP repaired.

Thanks for the document and the heads up Gabrielle.
20 Replies

53090 Views

Last post by Graeme1858
Sat Sep 07, 2024 7:57 am
A Guide to choosing eyepieces

Last post by Don Pensack « Fri Dec 29, 2023 3:40 pm
Replies: 19
by OleCuss » Sat Apr 27, 2019 4:40 am

First post

There is much controversy over eyepieces and their selection and this will persist for eternity. The reason for this is that each of us has a...

Last post

An excellent common sense article. Math is not my strong point, but even I could follow your analysis. It is very easy to go down rabbit holes after...

19 Replies

45900 Views

Last post by Don Pensack
Fri Dec 29, 2023 3:40 pm
Optics Websites

Last post by Don Pensack « Sun Jul 11, 2021 2:35 pm
Replies: 18
by mikemarotta » Fri Jul 02, 2021 6:00 pm

First post

I found this one:

Amateur Telescope Optics by Vladimir Sasek.

it seems all right and several or many others must be out there.
Any other leads?...

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Enjoy Mr. Suiter book when you get to read it. :)

Star Testing Astronomical Telescopes: A Manual for Evaluation and Adjustment by Harold Richard...

18 Replies

36087 Views

Last post by Don Pensack
Sun Jul 11, 2021 2:35 pm
What is your most overrated eyepiece .

Last post by DeanD « Tue Apr 22, 2025 10:16 am
Replies: 14
by Mike Q » Thu Feb 20, 2025 12:00 pm

First post

I saw this question online and thought it interesting enough to post here

What is your most overrated eyepiece. For the purposes of this question...

Last post

Mine was the TV Panoptic 19... I wanted a reasonably wide-field, very sharp eyepiece: and based on reading lots of rave reviews I sprung for this...

14 Replies

3692 Views

Last post by DeanD
Tue Apr 22, 2025 10:16 am
Binoculars used for anything

Last post by Nakedgun « Mon Apr 21, 2025 11:54 pm
Replies: 23
by Nakedgun » Wed Apr 19, 2023 7:57 pm
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First post

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We have a category for most used astro binos, so what about any others you have and use for general observing, or even astronomy, though they may...

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~

Obtained during the 90s, when Pentax was still manufacturing optics in Japan, this 7x20 monocular is a keeper.

:

IMGP4695.JPG

:

They even...
23 Replies

11486 Views

Last post by Nakedgun
Mon Apr 21, 2025 11:54 pm
9x63s?

Last post by OzEclipse « Fri Apr 18, 2025 1:43 pm
Replies: 2
by pakarinen » Thu Apr 17, 2025 12:49 pm

First post

Anybody have experience with 9x63s? Love my Vortex 8x42s, but aperture fever is creeping in. The 42s are relatively easy to keep steady when...

Last post

Hi Olen,

Last year, I had a pair of Orion mini Giant 9x63mm's and a pair of SV Bony 202 10x42mm ED.

The exit pupil of the 9x63mm is 7mm. The...

2 Replies

322 Views

Last post by OzEclipse
Fri Apr 18, 2025 1:43 pm
Oberwerk update

Last post by Mike Q « Sun Apr 13, 2025 1:52 am
Replies: 4
by Mike Q » Sat Apr 12, 2025 10:40 am

First post

This was in my email this morning and figured i would share it.

Thank you for being one of our newsletter subscribers. We’re thankful that our...

Last post

Yep. Exactly what is expected. One thing I don't get though, they say they have suspended shipping from China since the tariffs have went into...

4 Replies

336 Views

Last post by Mike Q
Sun Apr 13, 2025 1:52 am
New From TeleVue.

Last post by Mike Q « Thu Apr 03, 2025 8:52 pm
Replies: 30
by messier 111 » Fri Jan 31, 2025 10:48 pm
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If you are attending European AstroFest next weekend, David Nagler will be there with a MAJOR product introduction that you don’t want to miss at the...

Last post

I just saw the price, nope not spending north of 6 bills on a eyepiece.
30 Replies

9015 Views

Last post by Mike Q
Thu Apr 03, 2025 8:52 pm
What a Deal!

Last post by JayTee « Sat Mar 29, 2025 1:59 am
Replies: 16
by JayTee » Mon Mar 24, 2025 3:26 am

First post

I just picked up an ES 18mm 82°AFOV new from All-Star Telescope for the amazing low price of $211 (USD). I got the last one at that price because...

Last post

I'm getting a mixed message here. Are the cloud gods saying, Here, look at the pretty rainbow and pay no attention to all the clouds. Or are they...

16 Replies

1984 Views

Last post by JayTee
Sat Mar 29, 2025 1:59 am
New Tele Vue 24 Panoptic

Last post by messier 111 « Tue Mar 11, 2025 10:32 pm
Replies: 5
by messier 111 » Tue Mar 11, 2025 12:28 am

First post

tele vue announces a 24mm panoptic eyepiece without undercut. I know some people who will be happy with this change.

Last post

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Having complained about the undercuts for years, does this mean I must now buy another Pan 24?

Brother!

.

Well yes, otherwise you'll feel...

5 Replies

1150 Views

Last post by messier 111
Tue Mar 11, 2025 10:32 pm
Filters

Last post by Mike Q « Mon Mar 10, 2025 11:25 pm
Replies: 35
by Caldwell 14 » Sat Dec 07, 2024 9:41 pm
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First post

Not sure if I am in the right place or not to post this or not, so apologies to our mods in advance.

Filters, do you use them and if so which ones...

Last post

Is it possible that said planets are too small at present time ?

Thats a good question, but i would say probably not. Without the filter I could...
35 Replies

14359 Views

Last post by Mike Q
Mon Mar 10, 2025 11:25 pm
What has happened with the Explore Scientific love?

Last post by Caldwell 14 « Wed Feb 26, 2025 8:55 pm
Replies: 42
by Lady Fraktor » Sun Oct 16, 2022 5:57 pm
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3-4 years ago you could not go a day without reading postings about how great Explore Scientific telescopes are.
Now you hardly see them mentioned,...

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I owned a ton of ES eyepiece in the past. I thought they were all very good, especially the 68° series, the 24 mm in particular.
42 Replies

18816 Views

Last post by Caldwell 14
Wed Feb 26, 2025 8:55 pm
Eyepieces with built in coma corrector

Last post by Mike Q « Tue Feb 25, 2025 1:31 am
Replies: 4
by Mike Q » Sat Dec 07, 2024 1:14 pm

First post

These could be game changing.

Last post

If anyone is interested in eyepieces with built in coma correction, here is the website where you can pre order them.

4 Replies

3531 Views

Last post by Mike Q
Tue Feb 25, 2025 1:31 am
Electronic Telescope Eyepiece

Last post by Mike Q « Mon Feb 17, 2025 1:08 am
Replies: 18
by Thefatkitty » Fri Jan 17, 2025 6:28 pm

First post

Got this in my inbox from the good folks at Agena Astro. Little out of my budget at the moment, but it does look interesting:

Pegasus Astro...

Last post

This thing is on Amazon, a buddy sent it to me and it seems it does ok with planets. I might have to buy one just to try it

18 Replies

6453 Views

Last post by Mike Q
Mon Feb 17, 2025 1:08 am
Eyepiece poll

Last post by OzEclipse « Sun Feb 02, 2025 1:34 am
Replies: 16
by Mike Q » Sat Jan 25, 2025 2:00 pm

First post

So this is for kicks and grins and to satisfy my own curiosity. There are no wrong answers and we dont need to know why, but what are your top two...

Last post

In 18 f5, 82 o 31mm Nagler & 17mm Nagler for DSO's (Nagler 7mm planets)

In my 6 f7, 65 o Denkmeier D21mm and XW5mm(planets).

ED80 refractor:...

16 Replies

4849 Views

Last post by OzEclipse
Sun Feb 02, 2025 1:34 am
How to remove condensation from the lens barrel?

Last post by Mike Q « Fri Jan 31, 2025 6:34 pm
Replies: 9
by Rosssiiii » Sat Jan 25, 2025 8:55 pm

First post

Hi everyone,
I would like to know if you know a way to prevent all this condensation from forming on the body of the photographic lens:

I was using...

Last post

have you used the microfiber rag because the fan was not enough ?
can you advice me a microfiber rag that could be good for my lens from aliexpress...

9 Replies

4037 Views

Last post by Mike Q
Fri Jan 31, 2025 6:34 pm
24 mm Panoptic or 18.2mm Delite

Last post by Caldwell 14 « Mon Jan 27, 2025 9:13 pm
Replies: 26
by Caldwell 14 » Fri Nov 22, 2024 1:14 pm
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So from my signature would you:

a) sell the 32 mm and buy a 24 mm panoptic

b) buy a 18.2mm Delite to fill the slight gap

c) leave well alone, it’s...

Last post

I had one a few years ago, I agree they are excellent. I only sold it to fund another purchase and always regretted it
26 Replies

9038 Views

Last post by Caldwell 14
Mon Jan 27, 2025 9:13 pm
This is no Rolex

Last post by Astro_Achim « Mon Jan 20, 2025 2:21 pm
Replies: 9
by Astro_Achim » Mon Nov 04, 2024 2:39 pm

First post

I was really surprised about the parcel that arrived from china today.
I did not remember buying an expensive watch

20241104_152934.jpg

But,...

Last post

Ok, I got some hours of clear sky, not really good condition. So, I managed to shoot about 2 hours SHO ( 30min HA, 30min Sii, 1h OIII) with the new...

9 Replies

7116 Views

Last post by Astro_Achim
Mon Jan 20, 2025 2:21 pm
How a lens creates an image

Last post by Caldwell 14 « Sat Dec 28, 2024 2:55 pm
Replies: 4
by Nakedgun » Sun Nov 26, 2023 6:41 pm

First post

~

And, why aperture matters.

:

:

.

Last post

Really interesting

4 Replies

6117 Views

Last post by Caldwell 14
Sat Dec 28, 2024 2:55 pm
Antique store find 7x35

Last post by Mike Q « Thu Dec 26, 2024 10:35 pm
Replies: 17
by Ylem » Thu Oct 31, 2024 1:08 am

First post

Today while browsing a local antique store in Point Pleasant, NJ I found a pair of Sears 7x35 in amazing condition.
Beautiful case, with original...

Last post

Ou guys that walk into antique/thrift stores and find quailty optics.... i hate you all lol. I never find anything good in those places.

I have...

17 Replies

18721 Views

Last post by Mike Q
Thu Dec 26, 2024 10:35 pm
Astro-Tech EPs

Last post by Mike Q « Tue Dec 17, 2024 11:32 am
Replies: 23
by JayTee » Sat Jun 24, 2023 6:58 pm
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Has anyone tried any of the UWA EPs from Astro-Tech? I just stumbled across them today and became curious about their performance.

They can be found...

Last post

Many thanks

You are welcome
23 Replies

15040 Views

Last post by Mike Q
Tue Dec 17, 2024 11:32 am
interview with Don Pensack.

Last post by Ylem « Wed Dec 11, 2024 6:56 pm
Replies: 6
by messier 111 » Sun May 26, 2024 2:05 pm

First post

interview with Don Pensack .

I found this interview with one of our members, who in my opinion is a leader in eyepieces .
enjoy .

Last post

Thanks for sharing :)

(Can't believe i missed this post from May lol)

6 Replies

5173 Views

Last post by Ylem
Wed Dec 11, 2024 6:56 pm
Delite selection

Last post by Caldwell 14 « Wed Oct 30, 2024 7:14 pm
Replies: 13
by Caldwell 14 » Thu Apr 11, 2024 4:10 pm

First post

Hello folks

I own a Tele Vue 102 refractor and and have a small selection of eyepieces and try to keep it that way. My scope is 8.6fl and I...

Last post

So in the end it turns out that the 3-6 Nagler zoom is rather wonderful, I am really very pleased. You can see the final set in my signature below...

13 Replies

8242 Views

Last post by Caldwell 14
Wed Oct 30, 2024 7:14 pm

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