The "K&F Concept 67MM Polarizing Filter Circular Polarizing CPL, Ultra Slim, Japan Optics, Multi-Coated, with Lens Cap" came in a branded box. It was nice to find the filter in a hard plastic case for protection, with a lens cap already attached to the filter. I ordered this filter for a Nikon P900. With the lens cap still attached to the filter, I carefully screwed the thin filter into place. I then took a series of pictures to check its effectiveness, and have included two pictures of the original Nikon lens cap showing the difference. When attempting to remove the filter, I found that it was stuck, so I had to resort to a filter wrench to remove it. The reason it got stuck was because I was turning the polarizing ring clockwise and counterclockwise from my perspective behind the camera. I must have just caught the threaded ring with my finger as I turned it counterclockwise, just enough to lock the filter in place. Some suggestions I have from using the filter; 1. When installing the filter, leave the lens cap on as it gives a larger shooting area. 2. Only turn the filter clockwise when viewing it from behind the camera to avoid repeating my mistake and lock the filter in place. 3. Carry a suitable filter wrench when using one of these filters just in case it gets stuck. 4. If it fits a P900 and it gets stuck. Zoom the lens so it points out about 30mm then remove the battery without turning the camera off. This will stop the lens retracting when the camera is off and if the camera is left on it will stop the lens trying to counteract the movement. 5. The lens and cap are stored in a small cellophane sleeve inside the plastic case. It is best to leave the lens cap on and insert it so that the flap of the cover is on the same side as the lens cap. This virtually eliminates the risk of the sticky flap touching the exposed filter surface. The only thing that would make this filter better is some sort of cover for the exposed surface or attachment points to hold the filter in place inside the case.

Protection for P900 lens

This Sony E-mount camera adapter ring is sturdy and fits Nikon lenses perfectly. It's highly recommended for those of us who have those old analogue lenses but from unbeatable quality you'll obviously have to focus manually but it doesn't matter the good quality of the old lenses makes up for it. say trouble, I recommend this adapter brand K & F to everyone, thanks.

I'm really very happy with the purchase, this adapter is amazing, the membrane ring is very fluid. The good thing is that the system for opening the aperture works perfectly with Nikkor lenses, Nikon G, Tamron (Nikon mount), Sigma (Nikon mount), something I didn't find in my old adapters (they only worked with Nikon brand lenses). Besides the excellent functionality, it is also easy on the eye. It's not very heavy, but not too light either, suggesting the use of "full" materials.

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

If the crush ring is not attached in the Lock position, the aperture blade will not move in the Open position. The EOS M-mount adapter is built better than the SONY E-mount adapter with just the narrower pin (laughs), but despite the fact that the body is too small, the lens weighs quite a bit. So if it is not an adapter with a tripod seat, the mount and the camera screw will be put under enormous stress. Most importantly, FD adapters don't require any tools, and there are few things that detach the tripod seat, so that's an issue.

Perfect service

This Sony E-mount camera adapter ring is sturdy and fits Nikon lenses perfectly. It is highly recommended for those of us who have those old analog lenses, but of course, from the unbeatable quality, you have to focus manually, but no matter, the good quality of the old lenses compensates. let's say trouble, I recommend this K & F brand adapter to everyone, thank you.