I got the filter for the 55mm Sony/Zeiss lens. The front lens is set back here... but you never know. In any case, the glass is high quality and well coated to allow for high transmission and few reflections. Even in poor lighting, I don't see any flares that wouldn't be there without the filter. I can definitely recommend it.

I like this camera it comes with a case.

The filter works very well on my Sony Alpha 7 III with a Tamron 24mm F / 2.8. There is no cross formation or other unsightly effects. The workmanship feels good and comes in a practical plastic case. As always, the shipping was great with Amazon. I can definitely recommend the 67mm version of the filter. BUT, the filter may not take into account that well in other sizes.

It's really very nice. Add an extra touch of professionalism and beauty to any camera! I immediately replaced the strap I had on my Sony Alpha (the original always curls up a bit and gets ugly after a few months) and the camera immediately became nicer, there's little to do about it. The plastic fasteners are very sturdy, the metal parts ensure a very stable hold on the strap (it doesn't stretch easily, you have to be the one to loosen or tighten the straps at will). In general, we'll say that I "feel more secure" with it than with the original, even though it's literally impossible for the Sony strap to slip away from the camera in any way. Maybe it's that it gives a feeling of greater strength (the strap is a little wider than the original and in any case there are metal hooks in addition to the plastic clasps). In short, I find it much better than the one that came with the camera! I highly recommend it if you're looking for a strap, it's really great. The only note: it has no pads to reduce the weight of the camera. In my case, since it is a mirrorless camera, the weight is much less than an SLR, but I can already imagine the weight of an SLR with an important zoom! However, it has to be said that not even the original has any kind of ball bearings, eh! Great.

It works great and allows you to auto focus with the old wonderful Zuiko on the Sony A7 III!

use the following other lenses on my Sony A7 Mark III: 24 - 105mm 4.0 | 16 - 35mm 4.0 | 85mm 1.8 | Just so you have references for my review...I think the lenses I listed above are beyond reproach. I was skeptical about the Samyang at first. I bought the lens because I ... a) wanted a light fixed focal length that forces me to use this really "cool" 35mm;-) b) wanted a light combination c) I'm still relatively flexible with it ("Street " not necessarily only people, but in the city) possibly also portraits (not classic, just more reportage) ... the fixed focal length should of course be quite sharp (but sharpness is really not the most important thing for me when taking photos, just a side note) d) Face detection and eye autofocus would be very nice because then I can focus on composition The Samyang really has all of those things. That's a really good lens! It is of course a value for money monster! The only downside... no metal, but plastic. But I can do without it. It would be "stupid" the other way around. Metal and for that a cucumber of lens, right? Here you can really access without hesitation. It's a lot of fun, the autofocus works really surprisingly well...I wasn't really expecting it.

Use this on my Sony A7 III and I'm thrilled. Darks really great without discoloration etc.

I bought the K&F Concept ND filter for my Sony Alpha 7 III. I use the 67mm version.
The filter arrived the third day. Everything was well packed and undamaged.

The processing is really impressive. Very clean glass and no scratches or anything like that.
The intensity of the ND filter can be continuously adjusted from ND2 to ND400.
I took a few test photos with the filter and am absolutely satisfied.
The only drawback for which there is a star deduction: At the maximum filter level you have a bluish shimmering X in the photo. This is a bit annoying, but if you turn the intensity down to just below the MAX level, it disappears again.

All in all, you can't go wrong with the ND filter from K&F Concept. At a reasonable price you get a universal ND filter. I give it a clear buy recommendation and because of one shortcoming 4 stars.
I hope I could help :-)