Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

2020 Eyepieces Buyer's Guide

  • Please log in to reply
63 replies to this topic

#51 Starman1

Starman1

    Vendor (EyepiecesEtc.com)

  • *****
  • Vendors
  • topic starter
  • Posts: 46,239
  • Joined: 23 Jun 2003
  • Loc: Los Angeles

Posted 14 May 2020 - 09:02 AM

Is there a filter for eye relief as well? 

My spreadsheet is a standard Excel spreadsheet--you can sort by any column you wish, in either direction.

But note that a lot of companies don't bother to publish certain key pieces of information, like apparent field, or eye relief, so some of the eyepieces

with missing information may meet the requirements, but I have no way to tell.


  • scottinash and 25585 like this

#52 daslolo

daslolo

    Ranger 4

  • -----
  • Posts: 364
  • Joined: 18 Jan 2020
  • Loc: Camano Island, WA

Posted 14 May 2020 - 12:52 PM

For those who want to buy from Aliexpress/eBay I put together the list of major eyepieces from from Aliexpress in the same format as Don's spreadsheet. It has additional field "clone" for reference. Hope that helps.

 

Don, please feel free to add it to your spreadsheet if you want.

If those prices are in us$ then it's much cheaper to buy them from TS directly



#53 sanbai

sanbai

    Messenger

  • *****
  • Posts: 453
  • Joined: 18 May 2019
  • Loc: Baton Rouge, LA

Posted 14 May 2020 - 05:59 PM

It would be interesting to see how sales (in units and in $) are distributed among the different (types of) manufacturers. Anybody with figures and/or estimations?

For me is difficult to imagine how so many eyepieces can be sold for such a niche market! (And making profit!).
  • 25585 likes this

#54 Starman1

Starman1

    Vendor (EyepiecesEtc.com)

  • *****
  • Vendors
  • topic starter
  • Posts: 46,239
  • Joined: 23 Jun 2003
  • Loc: Los Angeles

Posted 14 May 2020 - 06:55 PM

It would be interesting to see how sales (in units and in $) are distributed among the different (types of) manufacturers. Anybody with figures and/or estimations?

For me is difficult to imagine how so many eyepieces can be sold for such a niche market! (And making profit!).

Such info would be hard to put together, given its proprietary nature.

 

But, don't forget that the average amateur has many more eyepieces than scopes and is almost constantly "rotating the crops", so to speak.

That's why there are always new products coming out and over 20 different used classified sites to buy from.

I've owned over 340 eyepieces over 57 years, but I only own 21 at the moment.  The rest were all sold used.

 

As to making profit, take it from me--I'd make a higher hourly wage delivering pizzas.bawling.gif

You have to love astronomy to stay in this business.


  • 25585 likes this

#55 25585

25585

    Cosmos

  • *****
  • Posts: 8,982
  • Joined: 29 Aug 2017
  • Loc: In a valley, in the UK.

Posted 15 May 2020 - 04:15 AM

115 at the moment, I don't sell as about 75% are older discontinued models that would be hard to find again and not get me much anyway. 65% of new price on a good day.



#56 aalmanni

aalmanni

    Explorer 1

  • *****
  • Posts: 62
  • Joined: 07 Aug 2015

Posted 15 May 2020 - 03:51 PM

Such info would be hard to put together, given its proprietary nature.

 

But, don't forget that the average amateur has many more eyepieces than scopes and is almost constantly "rotating the crops", so to speak.

That's why there are always new products coming out and over 20 different used classified sites to buy from.

I've owned over 340 eyepieces over 57 years, but I only own 21 at the moment.  The rest were all sold used.

 

As to making profit, take it from me--I'd make a higher hourly wage delivering pizzas.bawling.gif

You have to love astronomy to stay in this business.

341 in 57 years, almost 6 eyepieces on average every year !! that's a lot, you must be living in an area with 365 nights of clear skies.

For sure you must love astronomy to stay in, without motivation toward astronomy you'll lose interest in few weeks not months !!!

Me since I upgraded a quality 2" 25mm eyepiece with a dielectric diagonal, I almost stopped  using the 1.25" entirely especially the 10mm plossl, now I am in the market for a quality 1.25" eyepieces 


  • 25585 likes this

#57 Starman1

Starman1

    Vendor (EyepiecesEtc.com)

  • *****
  • Vendors
  • topic starter
  • Posts: 46,239
  • Joined: 23 Jun 2003
  • Loc: Los Angeles

Posted 15 May 2020 - 04:23 PM

Things change.

I started with 40-50° eyepieces, and discovered 60-65°.  Wow, what an improvement.

Then I found 82°.  Man, was I in hog heaven.

But then the attraction for small highly accurate eyepieces meant collecting more 40-50° eyepieces on top of the 82° ones.

Then came 100° eyepieces and I sold all the narrower ones.

Till I got a scope where a narrow apparent field eyepiece resulted in a wide true field, then some narrow ones came back (but not too narrow) for that scope.

And then astigmatic vision, requiring glasses and long eye relief eyepieces longer than 11mm.

 

It's an evolution.

 

I'm not as hard core an observer as many here on CN.  I only average 8-10 hours a month under dark skies with a 12.5", and about the same with a 4" apo here in LA.

(until recently, of course).

I observed many more hours a month back in the late '80s/ early '90s, in between wives.  My wife collects shoes.  Every now and then, she feels guilty and says, 

"Honey, don't you need an eyepiece or two?"  I immediately say, "Why yes, honey, I do."  Never look a gift horse in the mouth.


  • 25585 and daslolo like this

#58 daslolo

daslolo

    Ranger 4

  • -----
  • Posts: 364
  • Joined: 18 Jan 2020
  • Loc: Camano Island, WA

Posted 15 May 2020 - 04:37 PM

collect wives collect eyepieces swap, put wife in telescope, argue with eyepiece


  • Starman1 likes this

#59 JeniSkunk

JeniSkunk

    Sputnik

  • -----
  • Posts: 35
  • Joined: 08 Sep 2019
  • Loc: Brisbane, Queensland, Australia

Posted 17 May 2020 - 04:30 PM

Don, a minor bug fix for the next update.
brand: Saxon Australia
eyepiece name current: Cielo
should be: Cielo HD

#60 Starman1

Starman1

    Vendor (EyepiecesEtc.com)

  • *****
  • Vendors
  • topic starter
  • Posts: 46,239
  • Joined: 23 Jun 2003
  • Loc: Los Angeles

Posted 17 May 2020 - 04:35 PM

Done, and thanks!



#61 25585

25585

    Cosmos

  • *****
  • Posts: 8,982
  • Joined: 29 Aug 2017
  • Loc: In a valley, in the UK.

Posted 18 May 2020 - 01:45 AM

I always wore glasses & before telescopes, binoculars always needed long eye relief. Swift Osprey (7×42) were the answer. With telescopes it was Erfles & Barlows, cameras had to have large or diopter-friendly viewfinders.

 

A love-hate 13mm T1 Nagler was addictive for its 82° AFOV, & set me on a quest that only ended with the 12.5mm Morpheus & 12mm ES92, 30 years later. Expensive but interesting journey. Vixen LVs & LVWs were & are my friends, being made in Japan was the icing. Who would have thought back then China would so overwhelm, or even care about such a small market. Or be first to physically explore the Moon's dark side, with robots.

 

My tip of the hat to China that they made eyepieces which have transformed my viewing with eyepiece designs that prestigious US & Japanese makers were unwilling or unable to undertake for whatever reasons. Country of manufacture is largely irrelevent, brand loyalty the same. My collection is cosmopolitan, apolitical and as optically close to what I could only dream of 3 decades, half my lifetime ago. 


Edited by 25585, 18 May 2020 - 01:50 AM.


#62 RichA

RichA

    Surveyor 1

  • *****
  • Posts: 1,714
  • Joined: 03 Jun 2010
  • Loc: Toronto, Canada

Posted 20 May 2020 - 06:04 PM

Can I ask why anyone would make an eyepiece with a 25mm exit pupil?  I can barely managed 5.  Are octopi using telescopes now? laugh.gif

[If this is not the place please ignore...]

There are those opera-glass style binoculars from Vixen ($300 or so) which have low power, 3x, and large exit pupils.  It may be quote-unquote "wasting" light-gathering power, but it's better than the unaided eye and facilitates really wide fields of view. 



#63 25585

25585

    Cosmos

  • *****
  • Posts: 8,982
  • Joined: 29 Aug 2017
  • Loc: In a valley, in the UK.

Posted 21 May 2020 - 05:11 AM

Don, could you include a Dioptrx compatible column. TV of course provide the info for their models, but compatibility with other makes interest people too.

 

I will be able to test my Dioptrx on all my eyepieces, current & discontinued, when it arrives, but other CN members & you already know a great many I expect, that could be added.


Edited by 25585, 21 May 2020 - 05:12 AM.

  • Second Time Around likes this

#64 Starman1

Starman1

    Vendor (EyepiecesEtc.com)

  • *****
  • Vendors
  • topic starter
  • Posts: 46,239
  • Joined: 23 Jun 2003
  • Loc: Los Angeles

Posted 21 May 2020 - 11:10 AM

I could only add that data for the brands I sell.  Otherwise, not.

So that would be only a small portion of the eyepieces on the list.

Better to just know that the DioptRx fits 41-44mm tops, with some 41mm and some 44mm a non-fit.




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics