#1  
Old 14-12-2019, 04:32 PM
poider (Peter)
Registered User

poider is offline
 
Join Date: Apr 2012
Location: Adelaide, Australia
Posts: 200
Bartinov

G'day. does a bartinov mask need to be close to the end of the lens or can it be on the dew sheild or lens hood?
Reply With Quote
  #2  
Old 14-12-2019, 09:32 PM
Outcast's Avatar
Outcast (Carlton)
Always gonna be a NOOB...

Outcast is offline
 
Join Date: Oct 2008
Location: Cairns, Qld
Posts: 734
That's a really good question Poider...

On my SCT I had one right up on the corrector plate; on my main AP scope my Bhatinov sits on the end of the dew shield, the one I'm about to order for my Vixen 130 Newt won't sit on either really coz... it's a newt...

I get excellent focus results either way...

So, my best guess is no... it doesn't matter but, I'll be interested to see what other more knowledgeable folk have to say on the matter...

Cheers
Reply With Quote
  #3  
Old 14-12-2019, 10:00 PM
poider (Peter)
Registered User

poider is offline
 
Join Date: Apr 2012
Location: Adelaide, Australia
Posts: 200
I actually printed one then sticky taped it to the insert from a coles shopping bag and cut it out with a stanley knife, it is a little bit larger than the lens hood on the 100mm ed doublet but the only chance i had to test was half hour last nigh and it actually seemed to work, It is on the end of the hood so i will let you know when i get a better opportunity.
Reply With Quote
  #4  
Old 15-12-2019, 02:02 AM
Outcast's Avatar
Outcast (Carlton)
Always gonna be a NOOB...

Outcast is offline
 
Join Date: Oct 2008
Location: Cairns, Qld
Posts: 734
Quote:
Originally Posted by poider View Post
I actually printed one then sticky taped it to the insert from a coles shopping bag and cut it out with a stanley knife, it is a little bit larger than the lens hood on the 100mm ed doublet but the only chance i had to test was half hour last nigh and it actually seemed to work, It is on the end of the hood so i will let you know when i get a better opportunity.
Hmmm, you've given me food for thought there...

Where did you get the 'print' pattern for the template please?
Reply With Quote
  #5  
Old 15-12-2019, 10:48 AM
Sunfish (Ray)
Registered User

Sunfish is offline
 
Join Date: Mar 2018
Location: Wollongong
Posts: 599
Try here for a mask generator,

http://astrojargon.net/maskgenerator.aspx

I too have one on the corrector cut out of black binder cover with a stencil knife and one on the end of the dew shield of each refractor made out of line. Each works fine at any distance.
Reply With Quote
  #6  
Old 15-12-2019, 02:55 PM
poider (Peter)
Registered User

poider is offline
 
Join Date: Apr 2012
Location: Adelaide, Australia
Posts: 200
Quote:
Originally Posted by Outcast View Post
Hmmm, you've given me food for thought there...

Where did you get the 'print' pattern for the template please?
http://www.deepskywatch.com/Articles...inov-mask.html
Reply With Quote
  #7  
Old 15-12-2019, 06:42 PM
Outcast's Avatar
Outcast (Carlton)
Always gonna be a NOOB...

Outcast is offline
 
Join Date: Oct 2008
Location: Cairns, Qld
Posts: 734
Quote:
Originally Posted by Sunfish View Post
Try here for a mask generator,

http://astrojargon.net/maskgenerator.aspx

I too have one on the corrector cut out of black binder cover with a stencil knife and one on the end of the dew shield of each refractor made out of line. Each works fine at any distance.
Quote:
Originally Posted by poider View Post
Thankyou Gentlemen
Reply With Quote
  #8  
Old 16-12-2019, 07:23 AM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 18,332
The mask that doesn't have a cow.
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 05:15 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Advertisement
EQ8-R
Advertisement
Testar
Advertisement
Celestron RASA
Advertisement
Lunatico Astronomical
Advertisement
Astromechanics
Advertisement
Star Adventurer
Advertisement
Bintel
Advertisement
Astronomy and Electronics Centre
Advertisement