Register    Login    Forum    Search    FAQ

Board index » Products » Accessories




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post Posted: Wed Jul 26, 2017 11:50 pm 
Offline

Joined: Wed Jul 26, 2017 11:44 pm
Posts: 3
I have the 1600MMC and 8 up EFW - loving both - but I have the LRGB filter set. Are these suppose to all be parafocal? I did focus with each and all were different, but I don't know if that was just a seeing difference. (or even a temp difference) Is it safe to say I can average them all out and set them all at the same focus point? So I can auto focus with LUM and dial up R G or B and still be in focus?

OKAY now what about S H O? are they parafocal with each other? they surely are NOT parafocal to the LRGB. But in my tests they didn't seem to want to focus at the same point either.

This has been a major PITA in the short time I've owned them.


Top 
 Profile  
Reply with quote  
 Post Posted: Thu Jul 27, 2017 3:30 am 
Offline
User avatar

Joined: Thu Feb 21, 2013 2:51 am
Posts: 2127
usually we can only try to make sure the thickness of each filter close to reach other
but parafocal still depends on optics

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


Top 
 Profile  
Reply with quote  
 Post Posted: Thu Jul 27, 2017 1:08 pm 
Offline

Joined: Wed Jul 26, 2017 11:44 pm
Posts: 3
So you're saying... No their not parafocal. = ( wish I had known.


Top 
 Profile  
Reply with quote  
 Post Posted: Fri Jul 28, 2017 1:35 am 
Offline
User avatar

Joined: Thu Feb 21, 2013 2:51 am
Posts: 2127
Rojoyinc wrote:
So you're saying... No their not parafocal. = ( wish I had known.


you are correct they are not parafocal with all optics

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


Top 
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
 
Post new topic Reply to topic  [ 4 posts ] 

Board index » Products » Accessories


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: