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

Russell Optics still active?

  • Please log in to reply
10 replies to this topic

#1 Chris K

Chris K

    Messenger

  • *****
  • topic starter
  • Posts: 411
  • Joined: 20 Sep 2017
  • Loc: Long Island, Earth

Posted 10 April 2021 - 07:34 PM

Hi, I sent a note to Russell Optics today but it got me wondering whether it is still active.

 

There's no way to purchase on the site.



#2 sportsmed

sportsmed

    Messenger

  • *****
  • Posts: 418
  • Joined: 01 Aug 2012
  • Loc: Hot Springs, AR

Posted 10 April 2021 - 07:44 PM

Yea I just talked to Gary the other day, you can call him or email and buy direct. He said he is not going to do anymore short focal length EP's though just 12mm on up.


  • LDW47 and Chris K like this

#3 LDW47

LDW47

    Cosmos

  • *****
  • Posts: 8,141
  • Joined: 04 Mar 2012
  • Loc: North Bay,Ontario,Canada

Posted 10 April 2021 - 08:11 PM

Hi, I sent a note to Russell Optics today but it got me wondering whether it is still active.

 

There's no way to purchase on the site.

My 6 says he is still goin strong ! Email back and forth, set up what you want, send the $ and he ships out !


Edited by LDW47, 10 April 2021 - 08:13 PM.

  • Chris K likes this

#4 bmcclana

bmcclana

    Explorer 1

  • *****
  • Posts: 98
  • Joined: 31 Jul 2012
  • Loc: Central CT, USA

Posted 10 April 2021 - 08:21 PM

I bought from him a couple months ago. He indicated he wasn’t doing an eBay store but was still building and selling.

Traded a couple emails to decide what I wanted. I paid and had the piece in my hand about a week later.
  • izar187, LDW47, sportsmed and 1 other like this

#5 TOMDEY

TOMDEY

    Cosmos

  • *****
  • Posts: 9,476
  • Joined: 10 Feb 2014
  • Loc: Springwater, NY

Posted 10 April 2021 - 09:00 PM

Yes! Just got these a couple weeks ago. Very nice!    Tom

Attached Thumbnails

  • 39 Russell Optics 65mm Custom Super Plossl.jpg
  • 38 Russell Optics 85mm Custom Super Plossl.jpg

  • izar187, george tatsis, chemisted and 4 others like this

#6 Chris K

Chris K

    Messenger

  • *****
  • topic starter
  • Posts: 411
  • Joined: 20 Sep 2017
  • Loc: Long Island, Earth

Posted 10 April 2021 - 10:15 PM

Yes! Just got these a couple weeks ago. Very nice!    Tom

He replied a little while ago. Seems really nice.

I am deciding between his 50, 56 or 65mm.
Yes! Just got these a couple weeks ago. Very nice!    Tom

I want to use it in my AT72EDII as a "finder" EP. I was explaining to Gary that I am currently using the 31mm Nagler which is kind of silly for that purpose especially due to the weight difference when I switch to a higher power 1.25".

How do you like the 65mm? I would get almost 5.74º TFOV with it.



#7 TOMDEY

TOMDEY

    Cosmos

  • *****
  • Posts: 9,476
  • Joined: 10 Feb 2014
  • Loc: Springwater, NY

Posted 11 April 2021 - 07:26 AM

He replied a little while ago. Seems really nice.

I am deciding between his 50, 56 or 65mm.
Yes! Just got these a couple weeks ago. Very nice!    Tom

I want to use it in my AT72EDII as a "finder" EP. I was explaining to Gary that I am currently using the 31mm Nagler which is kind of silly for that purpose especially due to the weight difference when I switch to a higher power 1.25".

How do you like the 65mm? I would get almost 5.74º TFOV with it.

Hi Chris! Consider the manufacturer's stated or your computed TFOV/AFOV of any eyepiece to be very preliminary until you actually confirm it in your set-up or on the optical bench. Two conditions are necessary to provide the hoped-for field:

 

1) that the eyepiece comprises a crisp field stop that can be seen from the center of the integrated exit pupil.

2) that the telescope itself accommodates that field.

 

With very long focal length eyepieces mated to smaller scopes, this transitions from a reasonable assumption to more of a presumption. A $$$ Three-Inch of Four-Inch eyepiece mated to the Lick 36-inch F/20 refractor will provide the anticipated field. Otherwise, something in the train is more likely to clip the field.

 

Dennis di Cicco has a great article on this kinda stuff in the May 2021 Sky & Telescope. I'm building an optical bench to his design right now. Another way to measure eyepiece-only accommodated AFOF is shown in my illustration below.    Tom

Attached Thumbnails

  • 41 80 AFOV 1 Tom Dey annotated.jpg
  • 40 80 rototab for building AFOV optical bench Tom Dey's.jpg

  • george tatsis likes this

#8 BradFran

BradFran

    Apollo

  • -----
  • Posts: 1,007
  • Joined: 12 Jul 2017
  • Loc: Villingen-Schwenningen, Germany

Posted 11 April 2021 - 08:54 AM

Yes! Just got these a couple weeks ago. Very nice!    Tom

Now THAT'S a "Super-Plossl"!!!


Edited by BradFran, 11 April 2021 - 08:54 AM.

  • Voyager 3 likes this

#9 Maritime

Maritime

    Viking 1

  • *****
  • Posts: 909
  • Joined: 19 Aug 2020

Posted 11 April 2021 - 09:57 AM

I’ve bought from his ebay store but as that seems defunct how does one determine his inventory, or  availability?



#10 BradFran

BradFran

    Apollo

  • -----
  • Posts: 1,007
  • Joined: 12 Jul 2017
  • Loc: Villingen-Schwenningen, Germany

Posted 11 April 2021 - 11:38 AM

Here is his webpage:

http://russell-optics.com/



#11 LDW47

LDW47

    Cosmos

  • *****
  • Posts: 8,141
  • Joined: 04 Mar 2012
  • Loc: North Bay,Ontario,Canada

Posted 11 April 2021 - 02:40 PM

I’ve bought from his ebay store but as that seems defunct how does one determine his inventory, or  availability?

Did you read some of the posts above, explains it well ?




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