The product arrived on time.
Regarding the filter, it has a smooth shape with an included gear.
I used it with a Samsung S23 ultra mobile and the results were excellent in photography.
For video recording, it requires multiple settings to be adjusted.

I bought this camera for a cruise to the Caribbean. I didn't want to worry about using a waterproof case for my cell phone. This really did the trick! Takes beautiful underwater video and pictures. I was pleasantly surprised by the quality. Battery life was great, as well. Very easy to use. My only complaint is that the screen easily collects fingerprints. Overall, I love it!

The description for this K&F Concept Clip says "[Widely Compatibility] The clip can be clamped on most smartphones"

I have a Samsung A51 (the older 4G model) with an otterbox case. There was no way to attach this without removing my otterbox case. Note that I have another phone lens ND filter with a clip instead of this screw mechanism which is able to attach with no problems with or without the otterbox. Speaking of without the otterbox, my phone was too thin for the clamp, having the same problem as the next device I tried it on below.

So I tried it on my Samsung Galaxy Tab S9. I don't have a case on it. Again, no luck. my tablet is too thin. The screw mount pad, when fully tightened, still doesn't touch the screen with almost a 1/4 inch gap remaining. I might be able to get this to work with a felt furniture slider pad, but that is not ideal.

Finally, I tried it on my Pixel 6. Surprisingly, I could get it to fit even with the case still on. I thought the Pixel camera bump would not work with this, but it is ok(though not an ideal fit).

So in summary, unless you have an iphone that they list, you're taking a chance on this one.

I recently acquired the K&F Concept 22L Camera Case, and it has exceeded my expectations in both functionality and design. This camera bag offers a generous 22-liter capacity, making it ideal for photographers who need to carry a lot of equipment. The customizable interior compartments are perfect for organizing my DSLR, multiple lenses, and accessories, ensuring everything is secure and easily accessible. The inclusion of a dedicated 15.6-inch laptop compartment is a fantastic feature, allowing me to keep my laptop and camera gear all in one place without the need for an additional bag.

The quality and durability of the bag are top-notch. The rain cover is a standout feature, providing excellent protection against unexpected weather conditions and ensuring that my gear stays dry and safe. The bag is well-padded and designed to absorb shocks, which is crucial for protecting delicate equipment during travel. Additionally, the adjustable shoulder straps and padded handles offer comfort and ease of carrying, even when the bag is fully loaded.

Overall, the K&F Concept 22L Camera Case is an outstanding choice for photographers and drone enthusiasts. Its large capacity, thoughtful design, and robust construction make it a reliable and versatile option for carrying and protecting valuable gear. Whether you’re heading to a photo shoot or traveling, this camera case offers the perfect blend of space, protection, and convenience. Highly recommended for anyone looking to invest in a high-quality camera bag!

My company case for camera gear.

This is a well built backpack camera case. Lots of room and greasy protection for your expressive gear.

More space than I need. I can’t imagine I would need another case after this one.

It's really perfect for my use. It's solid and waterproof, so I don't have to worry about my gear. Plus, the fact that the storage space is easily adjustable is a real plus to suit what I put in the backpack. The top pocket allows you to store other things, although I wish it was a little larger to carry more things. The tripod clip is also very good. In addition, the bag is beautiful and of good quality