Old 17-12-2008, 04:00 PM
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Tinker is offline
Join Date: Sep 2007
Location: Whakatane, NZ
Posts: 11
Protective Lens filters

Hello all,

I've started using my Canon lenses for some astrophotography, and was wondering if the quality of the standard UV/Skyglow/Haze filters in front of the lens could cause adverse effects.

I'm asking really as I have just got a Ha filter which I may try to fit infront of the lens with a UV filter on top for protection from the elements.

I dont do any serious daytime photography, I just bought the cheapest filters to protect the lenses so I'm not sure what effect they really have, or might have during astrophotography.


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Old 18-12-2008, 02:57 PM
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ving (David)
~Dust bunny breeder~

ving is offline
Join Date: Nov 2004
Location: The town of campbells
Posts: 12,359
my 55-200mm VR didnt have a filter so i bought a hoya UV... it actually made the image quality worse and changed the focus of the lens, it even added CA. it turns out that though it was a hoya which is a reputable brand it was the philipenes made one and not the japanese made one....

quality is going to play a big part so get the best you can afford!
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