Eyepieces

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A Guide to choosing eyepieces

Last post by Don Pensack « Wed Sep 20, 2023 8:39 pm
Replies: 16
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

There are several ways to pick eyepieces:
1) Even % jumps. Like Pentax XW or Morpheus progressions, this is usually a 40% jump up to the next...

16 Replies

33131 Views

Last post by Don Pensack
Wed Sep 20, 2023 8:39 pm
Creating a basic set of eyepieces for your new telescope

Last post by Bigzmey « Thu Oct 20, 2022 8:57 pm
Replies: 67
by Lady Fraktor » Thu May 23, 2019 2:34 am
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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

I use combination of increase by factor (i.e. by 1.4x), exit pupil and U curve.

I star with 2mm exit pupil, where most of my galaxy hunting is done...
67 Replies

100382 Views

Last post by Bigzmey
Thu Oct 20, 2022 8:57 pm
The 1X / 2X / 3X Magnification Protocol for eyepiece set selection

Last post by 25585 « Sun Feb 27, 2022 12:25 pm
Replies: 26
by Don Pensack » Tue May 25, 2021 10:29 pm
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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...

Last post

With the exception of my ES92s & Baader Morpheus ranges, I normally stay below 65° for FL <20mm. To have a FoV where its all visible, as for...
26 Replies

21625 Views

Last post by 25585
Sun Feb 27, 2022 12:25 pm
Evolution of Eyepieces by Chris Lord

Last post by j.gardavsky « Sun Aug 15, 2021 3:39 pm
Replies: 19
by notFritzArgelander » Sun Oct 27, 2019 2:36 am

First post

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

Last post

You might like this information, too:

The Erfles, and some other eyepieces are desribed by the Zeiss designers in

DIE FERNROHRE UND...

19 Replies

39721 Views

Last post by j.gardavsky
Sun Aug 15, 2021 3:39 pm
Bargain of the year

Last post by DeanD « Sun Nov 26, 2023 5:14 am
Replies: 4
by OzEclipse » Fri Nov 24, 2023 9:53 am

First post

I just bought a Pentax XF 6.5-19mm zoom eyepiece. These prices are in AUD.
these eyepieces that usually retail at Astro shops for AUD400(USD270)....

Last post

I just bought a Pentax XF 6.5-19mm zoom eyepiece. These prices are in AUD.
these eyepieces that usually retail at Astro shops for AUD400(USD270)....

4 Replies

140 Views

Last post by DeanD
Sun Nov 26, 2023 5:14 am
20mm GSO SuperView?

Last post by pakarinen « Thu Nov 09, 2023 2:06 pm
Replies: 5
by pakarinen » Thu Oct 26, 2023 2:32 pm

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Thinking about trying one of these to keep plugged in to one of my f5s for fast grab-n-go use when I don't want to take out my EP case. Pretty...

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I love the price on these GSO's and am very happy with the loaner. At f/7 in my AT80ED they performed.

Good to know. I'd be using one with my...

5 Replies

233 Views

Last post by pakarinen
Thu Nov 09, 2023 2:06 pm
Astro-Tech EPs

Last post by kt4hx « Tue Nov 07, 2023 12:41 am
Replies: 6
by JayTee » Sat Jun 24, 2023 6:58 pm

First post

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

I now have the 28mm and though I've not used it extensively yet, I found it put up very nice views with my 17.5 inch f/4.5.

6 Replies

448 Views

Last post by kt4hx
Tue Nov 07, 2023 12:41 am
Astrotech PF EPs?

Last post by rickclark28 « Sat Nov 04, 2023 5:04 pm
Replies: 2
by pakarinen » Fri Mar 17, 2023 2:09 pm

First post

Anybody have eyes-on experience with Astrotech PF EPs? I thought I might try one as a spare just for grins since they're only $60 or so.

Last post

I have the AT-PF 5.5, 15.5 & 25mm. I got them for $40.00 US from astronomics.com and love them. Not sure how they run in a faster scope but my AT80ED...

2 Replies

416 Views

Last post by rickclark28
Sat Nov 04, 2023 5:04 pm
Orion LHD long eye relief 80°

Last post by Mike Q « Tue Oct 24, 2023 12:26 am
Replies: 5
by 25585 » Fri Jun 18, 2021 6:20 pm

First post

Under their own brand name, Orion sells a range of (advertised) 20mm eye relief 80° AFOV eyepieces.
They are 4.5mm, 6mm, 9mm all 1.25 fit, and two 2...

Last post

The 14 and 20mm LHD eyelieces are my go to eyepieces in my 10 inch. I am tossing around getting the 4mm and 6mm

5 Replies

1194 Views

Last post by Mike Q
Tue Oct 24, 2023 12:26 am
Masuyama Eyepieces

Last post by Lady Fraktor « Mon Oct 09, 2023 5:36 pm
Replies: 2
by Lady Fraktor » Sat Oct 07, 2023 6:30 pm

First post

Astro Hutech is showing a full line of new Masuyama eyepieces.
No pricing at the moment but hopefully they will update and be in stock soon.

These...

Last post

Some people on a different forum really make what is left of my brain boil...
For whatever reason Astro Hutech has claimed that the MOP on the...

2 Replies

218 Views

Last post by Lady Fraktor
Mon Oct 09, 2023 5:36 pm
First Light for 12 Eyepieces with Limited Comparisons

Last post by StarBru « Tue Oct 03, 2023 2:31 pm
Replies: 3
by StarBru » Mon Oct 02, 2023 9:34 pm

First post

Sunday, September 24, 2023
Where: My backyard in Arizona
Target: Saturn

Telescope: Meade 127mn f/9.3 refractor on a Skywatcher EQ6R-PRO w/WiFi

The...

Last post

A good quick test for any eyepiece is to move the view in front of the object and let it drift into view.
If there is scatter issues or flaring it...

3 Replies

168 Views

Last post by StarBru
Tue Oct 03, 2023 2:31 pm
Zoom EPs with Binoviewer

Last post by Michael131313 « Fri Sep 29, 2023 10:10 pm
Replies: 2
by Michael131313 » Fri Sep 29, 2023 8:18 pm

First post

Hi Everyone,
How well do zoom EPs work with binoviewers?
Thanks Michael

Last post

Thanks a lot Bigzmey.

2 Replies

140 Views

Last post by Michael131313
Fri Sep 29, 2023 10:10 pm
Nice sale on Explore Scientific EPs

Last post by BFaucett « Thu Sep 07, 2023 7:06 pm
Replies: 10
by Ylem » Thu Apr 06, 2023 10:37 pm

First post

I received an email from Agena with some good sales, especially on ES EPs, especially the 68°s

Last post

I thought I would bump this thread.

I received a newsletter email from Astronomics today. There's a sale on some Explore Scientific eyepieces during...

10 Replies

865 Views

Last post by BFaucett
Thu Sep 07, 2023 7:06 pm
celestron 12mm eyepiece

Last post by newbiemaker09 « Wed Aug 30, 2023 3:44 pm
Replies: 11
by newbiemaker09 » Fri Aug 18, 2023 4:05 pm

First post

i have aquired a celestron 12mm eyepiece model number 93305 from 1988 in a model rocket box i got from a family friend and I'm not sure what to do...

Last post

maybe ill post it on the classifieds and put make offer

11 Replies

438 Views

Last post by newbiemaker09
Wed Aug 30, 2023 3:44 pm
My new (used) eyepieces are here!

Last post by StarBru « Mon Aug 28, 2023 4:28 am
Replies: 9
by StarBru » Mon Aug 14, 2023 5:22 am

First post

I wanted these Meade HD-60 eyepieces before they were discontinued, saw the whole set up for sale for a decent price and was lucky enough to snatch...

Last post

I finally was able to purchase a Series 4000 Meade 8.8mm UWA eyepiece!

Now, I just need to obtain the 4.7mm UWA to complete the collection. And...

9 Replies

408 Views

Last post by StarBru
Mon Aug 28, 2023 4:28 am
Anybody tried these

Last post by Mike Q « Wed Aug 16, 2023 8:32 pm
Replies: 9
by Mike Q » Fri Aug 11, 2023 5:56 pm

First post

These eyepieces popped up in a thread on another forum and we are looking for anyone who may have given them a try.

Last post

I have not tried them but these have been around since 2017 and since there are few reviews I would suspect they are not that good.
The 45 mm is...

9 Replies

334 Views

Last post by Mike Q
Wed Aug 16, 2023 8:32 pm
Who likes 80°+ eyepieces?

Last post by Mike Q « Mon Jul 31, 2023 8:13 pm
Replies: 28
by Lady Fraktor » Thu Nov 10, 2022 10:34 pm
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Buy these and let me know how they work.
Then I can decide if they will be in the 2024 astro budget. :D

Last post

I have 6 80 degree eyepieces. 2 are 2 inch Long Perngs, 14mm and 20mm, 2 are 2 inch ES, 24 and 30mm and 2 are 1.25 inch ES and they are in the 8mm...
28 Replies

1831 Views

Last post by Mike Q
Mon Jul 31, 2023 8:13 pm
New Takahashi Eyepieces

Last post by Lady Fraktor « Sun Jul 16, 2023 7:25 pm
Replies: 2
by Lady Fraktor » Sat Jul 15, 2023 4:51 pm

First post

3 new Symmetrical/ Plossl to start, hopefully adding more focal lengths in the near future.
31.7 mm barrel, 48° AFOV
Prices are between € 141 and €...

Last post

The last thing I need is another eyepiece but if the reviews are good... ;)

2 Replies

265 Views

Last post by Lady Fraktor
Sun Jul 16, 2023 7:25 pm
New Brandon eyepiece from Vernonscope

Last post by Lady Fraktor « Sat Jul 08, 2023 5:03 am
Replies: 1
by Lady Fraktor » Mon Sep 26, 2022 6:13 pm

First post

I should hopefully have mine in a few weeks :)

Last post

I completely forgot about this posting...
After having had the 20 mm Brandon for about 9 months now I would start by saying it is a fantastic...

1 Replies

533 Views

Last post by Lady Fraktor
Sat Jul 08, 2023 5:03 am
28mm UO Pretoria

Last post by Lady Fraktor « Fri Jun 30, 2023 3:41 am
Replies: 1
by regandon » Fri Jun 30, 2023 2:19 am

First post

Anyone remember this eyepiece? I've had this since 1989. University Optics only made 150 of these 28mm Pretoria eyepieces. They were not cheap back...

Last post

I have not had a opportunity to try one but a few of the members have commented on their use before.

1 Replies

261 Views

Last post by Lady Fraktor
Fri Jun 30, 2023 3:41 am
6mm spherical singlet lens

Last post by Lady Fraktor « Fri Jun 30, 2023 3:35 am
Replies: 7
by regandon » Thu Jun 29, 2023 4:02 pm

First post

I was just sent this 6mm Ball eyepiece (spherical singlet lens) and a 2x Barlow from Siebert Optics. The baffling in the 6mm Ball eyepiece looks very...

Last post

The 6 mm ball has about 1.8 mm eye relief, comparable to the Pentax 3.8 mm XP.
If it is a Siebert BK7 ball the focal length is approximately 4.5...

7 Replies

371 Views

Last post by Lady Fraktor
Fri Jun 30, 2023 3:35 am
Svbony 7-21

Last post by Frazman « Sun Jun 18, 2023 12:23 pm
Replies: 9
by Frazman » Wed Feb 01, 2023 12:33 pm

First post

A bit of our viewing here is accomplished by trekking in on foot to remote spots. With that in mind, we try to keep things light (hence the recent...

Last post

Came in this week, hope to get it out soon, seeing is horrible right now.
IMG_5408.jpeg

9 Replies

891 Views

Last post by Frazman
Sun Jun 18, 2023 12:23 pm
Eyepiece for EdgeHD11

Last post by OzEclipse « Thu May 25, 2023 11:41 pm
Replies: 7
by ic_1101 » Wed Apr 05, 2023 3:20 pm

First post

Hi all! Being mainly an AP imager I have only a few eyepieces for visual use (20&30mm). Lately my grandkids have shown an interest in viewing the...

Last post

Lot's of good recommendations already posted.

My 18 f5.5 has a 2500mm focal length, not that different to the Edge 11.

For planet observing all...

7 Replies

753 Views

Last post by OzEclipse
Thu May 25, 2023 11:41 pm
At It Again

Last post by Don Pensack « Tue May 23, 2023 4:06 pm
Replies: 6
by LDW47 » Fri Apr 14, 2023 2:06 pm

First post

Even though I have almost a complete set of Morpheus eyepieces which was preceded by the Hyperions which were preceded by a set of ........, which...

Last post

I briefly had APM 18mm version and it was a very comfortable EP. I wish smaler FLs had better eye relief though.

I think the 10mm has a 16mm er,...

6 Replies

622 Views

Last post by Don Pensack
Tue May 23, 2023 4:06 pm
Classic find

Last post by Unitron48 « Fri Mar 17, 2023 4:46 pm
Replies: 9
by Bigzmey » Sun Feb 26, 2023 6:26 pm

First post

I have been looking for this classic EP for awhile. Finally, last week a gentleman from San Diego responded to my wanted ad. Behold Meade second...

Last post

Very nice! Can't wait to hear your report!!

Dave

9 Replies

815 Views

Last post by Unitron48
Fri Mar 17, 2023 4:46 pm

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