Optolong Clear Sky Filter is the first new item in 2017 from Optolong. Clear Sky blocks city Na and Hg light pollution so that improve contrast effectively.
The main point of this filter that differ with other filter, its front facing,77mm, you can twist it in front of camera lens directly like UV lens. More important is its performance, no wavelength shifting , no color gradient through the images(result).
This type suits for any lens what UV lens fit. Primary For Astrophotography In Mild To Moderate Light Pollution
Item In Stock
Please Contact 017-6063060/03-40317167/013-2310319
Item Self Collect In Setapak, KL
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20% Discount If Purchase With Telescope, Camera Or Tracker!