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Old 30-08-2018, 12:26 AM
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astronobob (Bob)
Casual Cosmos Capturer

astronobob is offline
 
Join Date: Jun 2010
Location: Gold Coast SE QLD
Posts: 4,190
Quote:
Originally Posted by ZeroID View Post
From my understanding the 'L' filter is a UV\IR cut filter. That's what ZWO told me when I enquired and bought the 1600mm-c kit with EFW and filters. Is this not the case ?
Cheers for adding this Brent, very informative Now you have cursed me with Filter researching to do which is a very good thing - i think
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Quote:
Originally Posted by Slawomir View Post
You are right Brent, Luminance usually blocks anything below 400nmm and above 700nm. I believe Lum filter is meant to be used with refracting telescopes to help controlling chromatic aberration of light that is invisible to human eye but nonetheless picked up by the camera - without such filers stars would have been larger/more bloated with fast refracting telescopes that are commonly used for imaging.
Thank you for the added 'clarity' <- pun, there Suavi, interesting indeed
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