#1  
Old 02-04-2020, 09:58 AM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,450
x1.5 Tele-extender or Barlow

Any recommendations for a x1.5 quality Tele-extender or Barlow which would fit a 1.25" set-up.
I'm looking of such an animal to give me a full frame solar image (ASI 1600MM) on the ED80.
Reply With Quote
  #2  
Old 02-04-2020, 05:26 PM
beren's Avatar
beren
Registered User

beren is offline
 
Join Date: Oct 2004
Location: WA
Posts: 2,781
1.6x though ..... https://www.kyoei-osaka.jp/SHOP/nikon-con-eic16.html
Reply With Quote
  #3  
Old 02-04-2020, 05:55 PM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,450
Beren,
My Japanese translator didnít work to well....
Is this a 1.25Ē fitting with a T thread???
Reply With Quote
  #4  
Old 03-04-2020, 01:47 AM
beren's Avatar
beren
Registered User

beren is offline
 
Join Date: Oct 2004
Location: WA
Posts: 2,781
1.25" fitting with a twist lock function Ken

https://agenaastro.com/nikon-eic-16-...er-nav-sw.html
Reply With Quote
  #5  
Old 03-04-2020, 10:07 AM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,450
Beren,
Thanks.
A pretty expensive solution, not sure what the final magnification would be - it does say it's a tele-extender so the back focus (nosepiece-T2, T2 to T2 tilter, T2 to camera) shouldn't make any difference .....
In the meantime I found "in my box of tricks" an Astro Engineering, x1.6 Magni-Max (AC555) Barlow. (I tried this years ago to improve a guide camera set-up)
It's a 1.25" filter thread so needs a bit of ingenuity to get a fit to the T2 tilter.....
Let's see what can be done.
Reply With Quote
  #6  
Old 03-04-2020, 11:35 AM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,450
Update:
The filter sized AE Barlow...found a 28mm to male T thread adaptor, this then needed a female/ female T thread at one end to mount a 1.25" nosepiece.
Where do you get a female/ female T thread adaptor??
Baader and Agena do one....what other options?????


An inspired thought...the T2 camera adaptors I have (many!!) have the T thread insert - three small grub screws - what about it?
Yes! removing the insert provided an ideal female/ female...
Mounted on the front of the usual ZWO T2 tilter managed (between wind and cloud) to get a solar image. The image size is ideal!
Hmmm OK, but what about quality? resolution?
I'm taking a couple of images to check things out....stay tuned.
Reply With Quote
  #7  
Old 03-04-2020, 01:49 PM
Camelopardalis's Avatar
Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 4,787
ZWO include a 10mm female-female adapter with their cooled cameras, and some of the larger-chipped non-cooled ones.
Reply With Quote
  #8  
Old 03-04-2020, 02:31 PM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,450
Dunk,
https://astronomy-imaging-camera.com...asi1600mm-cool
"what's in the box?"
Couldn't find it



until I realised it was fitted to the front of the camera!


I think, at the moment I have to leave it in place....anyway looks like my cobbled together barlow works.
Reply With Quote
  #9  
Old 04-04-2020, 01:26 PM
Camelopardalis's Avatar
Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 4,787


Glad you got it sorted, Ken

How do you find the AE Barlow across the field of the 1600 sensor?
Reply With Quote
  #10  
Old 04-04-2020, 02:08 PM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,450
http://www.iceinspace.com.au/forum/s...d.php?t=181921


The early results look acceptable.
Next opportunity I'll take some H alpha to check for Newton Rings....
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 05:48 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement
Lunatico Astronomical
Advertisement
Astromechanics
Advertisement
Astronomy and Electronics Centre
Advertisement