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

The only problem I encountered was that I had to auto focus the scene first, then change the settings to manual and then add the filter and adjust the shutter speed based on the ND settings. Otherwise a great filter...

In conjunction with the Canon EOS 1000 D Canon EOS 1000D SLR digital camera (10 megapixels, live view) housing, the maximum resolution can be achieved for this camera. Thanks to aperture values from 1.4, it is wonderfully possible to resolve the motifs in front of the background with absolutely crisp sharpness. In my opinion, the colors also appear more natural. Since I previously only worked with a Tamron zoom lens and this only starts with an aperture value of 3.5, you also have to get used to paying attention to the aperture with the automatic function or in program mode 1.4 of the Canon is not selected for "normal images", otherwise the depth of field is correspondingly small. The auto focus is quiet and fast, which is particularly helpful in twilight and with tracking auto focus. Can only recommend the lens.

I've been using this lens for 2 years and although it doesn't have auto focus it has become one of my favorite lenses.

Very good picture, auto focus is a mast

Seems well built given the low price. Very snug fitting (compared to Nikon's original adapters) but hopefully will loosen and smooth out over time. For use on Fuji X-T30. Bought for use with Micro Nikkor 60mm for close-up photography. Will probably be used a lot of the time on a tripod. The heavy lens feels unbalanced when handheld. To be honest, I probably won't use it much, but it was definitely worth the cheap price. I probably won't use it with other Nikkor lenses I own. Sorry, but I've gotten used to the auto focus and other auto functions. While these 30-40 year old lenses are sharper than the new Fuji lenses, they are just too big and heavy and my older eyes can't focus like they used to.

I am very happy with the lens. For the price it's a great device. But the auto focus sucks, so 1 star less.

The photos come out very well. Auto focus is fine.