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Old 05-12-2008, 08:41 AM
Ken Tydeck Ken Tydeck is offline
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Default C14 without xlt coatings

Hi all,
I was wondering if having the xlt coatings will make any difference with the HS? How about for imaging straight through as a normal SC? I will be mounting it on a AP1200 so longer exposures should be no problem to compensate. I have a line on a C14 that is non xlt and am thinking of purchasing it for use with HS. Also it will need to be modded for HS as it is non fastar. Thanks.

Regards,
Ken Tydeck
Mesa, AZ.
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Old 06-11-2008, 03:26 PM
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Ozy Ozy is offline
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I think that if you are under good skies, you'll have good luck with the non-XLT 14". The XLT coatings use Water White glass instead of Soda Lime glass for the corrector lens. There is about an 11% difference in light sensitivity. When shooting at f2, this will hardly be noticeable, and easily compensated via just a few seconds longer on exposure time.
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Old 06-21-2008, 12:22 PM
Ken Tydeck Ken Tydeck is offline
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Thankks for the info Ozy. Good info..KT
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