I bought this for a rarely used camera. It's still a valuable collector's item that I want to keep in excellent condition and that means I had to protect the lens. I only have filters with the Zeiss "T" coating made of German Schott glass on the cameras that I use a lot because I think they are the best multi-coated filters I can afford, but I can't spend the money on them spend on a camera I rarely use.
Any camera that is threaded to accept a filter deserves the protection that comes with a filter mounted in front of the actual camera lens. I would rather risk damaging the AR coating of a filter that can be easily replaced than risk damaging the actual lens on one of my cameras through cleaning and exposure to dust or chemicals in the air.
This brand of filter came carefully packaged and the filter holder that comes with the filter is well designed and provides excellent protection for the filter when it is not on the camera lens as I am using a different type of filter. This filter has multiple AR coatings on both sides of the filter and after comparing the results of identical images taken with the same camera using this filter and one of my prized and now unaffordable Zeiss "T" filters, I can say I see no difference can the results. I'm sure an optical lab could document some differences, but in the real world I can't tell any differences by comparing the test images,
This design works so well that I am slowly replacing the older non-Zeiss filters I have on my older lenses and cameras with these newer designs.

bought this for a rarely used camera. It's still a valuable collector's item that I want to keep in excellent condition and that means I had to protect the lens. I only have filters with the Zeiss "T" coating made of German Schott glass on the cameras that I use a lot because I think they are the best multi-coated filters I can afford, but I can't spend the money on them spend on a camera I rarely use. Any camera that is threaded to accept a filter deserves the protection that comes with a filter mounted in front of the actual camera lens. I would rather risk damaging the AR coating of a filter that can be easily replaced than risk damaging the actual lens on one of my cameras through cleaning and exposure to dust or chemicals in the air. This brand of filter came carefully packaged and the filter holder that comes with the filter is well designed and provides excellent protection for the filter when it is not on the camera lens as I am using a different type of filter. This filter has multiple AR coatings on both sides of the filter and after comparing the results of identical images taken with the same camera using this filter and one of my prized and now unaffordable Zeiss "T" filters, I can say I see no difference can the results. I'm sure an optical lab could document some differences, but in the real world I can't see any differences when comparing the test images I took with this filter and the Zeiss filters I've used. This design works so well that I am slowly replacing the older non-Zeiss filters I have on my older lenses and cameras with these newer designs.

Used to adapt some vintage lenses including Carl Zeiss lenses to Canon EOS DSLRs. The model I chose includes only a mechanical adjustment and no electronic one, it works well and I have used it with satisfaction. After 7 years it still works perfectly, made with solid materials and the right tolerances.

This ring allows the prestigious Zeiss manual focus lenses with Contax/Yashica mount to be fitted to a Sony Alpha (E-mont) camera body. The connection on my Sony A7III and A7R4 is perfect with no play. The same applies to attachment with C/Y bayonet lenses. The ring is made entirely of metal, heavy but superbly finished. No reflection in the ring. I am really very satisfied and for this reason I rate the article with 5 stars.

well done. works very well. Allows legendary Zeiss lenses to be used on most Nikon film and digital cameras. focuses perfectly.

It allows me to mount m42 mount lenses on my Nikon 1 camera...there is no auto focus with it but it is very easy to get sharp photos...there is no glass in it so the optical quality of the lens used is not affected...this unit easily connects to my nikon one and my m42 lenses...the helios44_3 and the volna9...easy to screw on and off the adapter...the package is a week early arrived than expected and the price was amazing...this was one of the best values I've bought in a long time

With the adapter I can finally use my old Zeiss lenses from analogue times on the Canon EOS RP, the first results are very good. The adapter fits extremely well, everything makes a solid impression, hence a full 5 points.

I'm as happy as a radish! The adapter is solid and connects my Canon R5 to the old Zeiss/Contax lenses. I love this setup. Delivery was fast and good.