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Optolong IR Pass (685nm) Filter - 1.25"
| Brand | Optolong |
| Part Number | Q1I3000403Y |
| Availability | |
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Product Info
Manufacturer Description
Reviews
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Jun 30, 2018
Great filter for IR imaging
Pros: Cons: Comments:Very good filter at a reasonable price. Images taken with it are sharp and detailed, no distortions. Filter threads on my cameras and other accessories well, not sloppy, not too tight. I place it on par with my Baader and other high quality filters.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Aug 21, 2017IR 685nm
Pros: Cons: Comments:I purchased this filter specifically for use with a night vision (NV) monocular to block heavy light pollution from my home observing site. Comparing this filter to IR 640nm and 600nm filters under my city skies, I prefer this filter. It does attenuate the stars a little more, but most of the visible light spectrum is blocked better, allowing a darker background and better contrast. I use this filter only under light polluted skies with night vision; none of these filters are needed from a dark site when using NV. Nebulae virtually disappear when using this filter, but stellar objects (open clusters, globulars and even a few of the bright galaxies) look better with this filter than without... from light polluted skies when using NV. Nicely made filter with a thinner housing than some other brands. Quality seems excellent. This is the second Optolong filter I have purchased from Agena and am very happy with both products.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
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