Register    Login    Forum    Search    FAQ

Board index » Products » Feature Requests




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post Posted: Sun Jan 08, 2017 10:56 am 
Offline

Joined: Fri Feb 12, 2016 2:29 am
Posts: 82
Hi sam and team, i have been using vivitar's 3x teleconverter (screw mount) and its really amazing. Unlike a regular barlow, it has m42 threads male and female on the ends. This allows me to attach the camera to the ota with zero flexure.

My request is one from zwo with even better optics, that is is really good, and more improtantly better coatings. The weakpoint is the light tranmission could be better. Thank you kindly


Top 
 Profile  
Reply with quote  
 Post Posted: Sun Jan 08, 2017 10:38 pm 
Offline

Joined: Tue Dec 31, 2013 6:15 pm
Posts: 483
4-element telecentric designs with fixed magnification aren't easy to come by. There is Meade TeleXtender and TeleVue Powermate only from the mainstream ones.


Top 
 Profile  
Reply with quote  
 Post Posted: Mon Jan 09, 2017 12:19 am 
Offline

Joined: Fri Feb 12, 2016 2:29 am
Posts: 82
The only one i know is vivitar's screw mount one. One end scres into the 2"sct adapter and the camera screw into tele extender. The chain has no flexure. Powermate is.good but big


Top 
 Profile  
Reply with quote  
 Post Posted: Wed Jan 11, 2017 2:44 pm 
Offline
User avatar

Joined: Thu Feb 21, 2013 2:51 am
Posts: 2346
we are not professional at this ;)

_________________
ZWO Founder
Location:lon=120.6 lat=31.3
SuZhou China


Top 
 Profile  
Reply with quote  
 Post Posted: Fri Jan 13, 2017 2:39 pm 
Offline

Joined: Mon Aug 08, 2016 3:08 am
Posts: 47
Try This
http://www.owlastronomy.com/barlows.htm


Top 
 Profile  
Reply with quote  
 Post Posted: Sun Jan 15, 2017 3:04 pm 
Offline

Joined: Fri Feb 12, 2016 2:29 am
Posts: 82
Its ok sam. With time i think the team will make an excellent barlow. Even an apochomatic one.

What makes this different is the camera screws in to the barlow and the barlow screws into 2" adapter m42 threads. I would buy that in a heartbeat.

I looked at the site. Good stuff, but not same idea.


Top 
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
 
Post new topic Reply to topic  [ 6 posts ] 

Board index » Products » Feature Requests


Who is online

Users browsing this forum: No registered users and 1 guest

 
 

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: