Excellent filters. Brilliant quality and allow you to take amazing night sky photos.
06/10/2019
Construction is very good with rubberized edge ridges for easy installation and removal, especially important for a filter that will only be used for night sky photography. Light transmission is good with no apparent chromatic aberration from edge to edge. The filter doesn't easily attract dust and cleans well with a quality microfiber cloth. While I've only taken a few night test shots, the filter appears to be very effective, especially for sodium vapor light pollution. One more item of note - the filter case is the best I've ever received with a filter of any price!
29/08/2019
First the good part, this is a well built filter of good quality not a cheap made in China filter, it's metal with a very good grip to screw on and remove nice! Has a nice matte black ring nice! Not much of a color cast nice! 1 of the best filter cases I have ever used nice!Now the bad the Amazon listing from K&N says Nano coated BS! No coatings at ALL! That's the main issues and it's flairs because of not having no coatings just plain glass just like the ICE brand but cost much less.So if you want a good sky filter to help block out some of the sodium lamps and city lights and don't want reflections THIS IS NOT THAT FILTER! Look at the Haida 77mm Clear-Night Filter NanoPro MC Light Pollution Reduction for Sky, cost more but it is coated. I just got it today so for sure it's coated but will it stop street lights reflecting with the sky filter?Maybe I just got a filter that was not coated or did not get any Quality Control possible, and when I told K&N about this they said it was moon that caused the glare.... sorry no moon up. No Moon.
04/08/2019
Hello! I recently received this filter and have only used it once thus far. It definitely makes a huge difference in the lighting when used for color images when doing night photography. I am going to try it again this weekend and will update after a more extensive trial & some B&W images as well. I have some questions about clarity that my initial test didn't quite clear up, which may have just been related to focus points/depth of field. Should that test go well, I'd adjust to 5/5 stars. There aren't many options for this style of filter and this was the most affordable one I found on Amazon.
13/06/2019