Also known as a 'didymium' filter, this is used to enhance red, orange and brown subjects to give more color saturation and contrast, while having very little effect on other colors.
It can be used in many situations such as architecture where certain building features need emphasising, or for landscapes to enhance foliage and rocky features.
Reviewed by 2 customers
With some reservations we added this filter to our kit for our trip to Lake Supperior/U.P. Michigan. There was a marked improvement over the usual 81A,B and even C. When bundled with a Tiffen polarizer Fall Colors gained some contrast and detail but the biggest gain was the Pictured Rocks National Lakeshore and the stone formations around all the waterfalls. The amount of detail, contrast, and color intensity, while not overwelming, are still closer to what my naked eye is seeing. A good bit of kitt for Landscapes. Knowing what I know now I would buy this filter again. Thanks Hoya! Thanks Adorama!
I was pretty satisfied with this product. I actually thought it might add a little more intensity but all in all it does the job.