I like to take pictures of stars and animals from far away. I use a Samsung S10 and the optical zoom is only 2x. I got this 28x zoom on my phone and I can see the moon, stars and animals in the morning clearly. The lens is pretty heavy, it's solid. The tripod helps with stabilize the phone.

This phone camera lens kit is versatile and high-quality. The 28x optical zoom and 4K HD telephoto capabilities enhance phone photography significantly. The included tripod, lens cover, and clips add convenience. Perfect for both amateur and professional photographers. Highly recommend!

An optical system is only as good as its weakest link. Putting a filter in front of a lens will only ever cause a small amount of degradation in image quality, but this shouldn't be noticeable provided the filter is made from high quality optical glass. I was very sceptical about the image quality this polarising filter could offer at its low price (£18.99 at time of order) considering a similar item from Canon costs around £200. Having tested it thoroughly, I have to say that even from my perspective as a retired professional photographer with over 40 years of experience, I am incredibly impressed! It looked great from the get-go as it came in a lovely silver foil box with a plastic storage case. The manufacturers have wisely included a high quality lens cap and cleaning cloth. There was also a wrist strap included in the pack which was a bit random but welcome nonetheless. When I examined the filter in detail, I was honestly amazed at its build quality. The metal outer ring is very slim, yet it is made in two parts, allowing the polarizing filter to rotate smoothly and freely once attached to the lens. It fits perfectly with my Canon 16-35mm f4 L-series lens. My first impressions were so unexpectedly positive that I felt I had to confirm them with an objective test. You can see the results in the attached photos. These were not created to demonstrate the polarizing effect (which I had already verified to work as expected), but simply to find out what effect the filter might have on image quality. The first thing you notice about the full frame is that due to the narrow filter rings, even at the widest focal length of 16mm, there is no visibility in the corners of the image or darkness in the corners of the image. There are also two images taken in the same way as the wide angle view. I cropped them to show the level of detail in the center of the frame. One shows the result with the filter attached and the other without. I really can't see any noticeable difference between the two and will therefore feel comfortable using this filter without worrying about it significantly affecting image quality. Overall (and I must admit rather to my surprise) I can't say anything bad about this filter and am therefore very happy to give it the well-deserved full five star rating

I've known K&F for a while now and have one or the other product from them (UV filter and camera backpack). For me, the brand was always technically good for me and was more in the mid-price segment.
But now they want to know and are entering the high-class sector.

An ND filter reduces incoming light. In the case of this ND1000 around 10 stops. This makes it ideal for long exposures and to “artificially” extend them. Especially when it comes to moving processes such as rivers, waterfalls, road traffic and others, beautifully smooth flows can be achieved.

The filter comes beautifully packaged and is really fun to unpack. Anyone who loves unboxing will enjoy this to the fullest.
The filter comes in a fabric/leather bag. Very nice in itself, but in my opinion, a filter is richer in the well-known plastic cases.
The inside of the packaging can be converted into a “picture frame”. Joke idea but I think there are nicer ones.

But let's get to the filter itself. Here I also have to say again that the performance matches the price and is absolutely justified.
Clean workmanship, both on the filter thread and on the glass.
The filter is easy and easy to turn on and remove again.
No comparison to cheap filters.
The glass is of the best quality and its optical performance is indistinguishable from other ND filters from well-known competitors.
This gives you uniform darkening over the entire image without loss of quality or any color casts.

In summary, this is a very good filter in terms of its quality and optical performance. It has weak points in the somewhat loose fixation in the storage bag, which costs half a star.
However, we are still rounded up to a full 5 stars and a buy recommendation.

In my opinion this is a very nice black fog camera filter for my DSLR. It is made of high-quality optical glass with multiple layers of ultra-thin nanometer coatings and ultra-lightweight materials. The frame is very light and thin compared to some other filters I have. This filter is a 1/4 diffusion/fog filter and the changes from a regular, unfiltered lens are minimal. The same filter is available in smaller and larger strengths. But I figured 1/4 would be a good place to start experimenting and for general use. The price of this filter is very good considering you are getting a high quality multi-coated glass filter. From my various experimental shots, I believe this filter has a lot of potential for portraits and still lifes. I'd like to try it on more macro shots as well. I would definitely recommend this camera filter to anyone who is still shooting with a DSLR rather than their phone. ;-)

I bought this microscope for my son but now I use it more. Very good optical zoom and 4x digital zoom makes it perfect. Since it is a digital device, one can capture the image and store it on the memory card for future reference. Battery life is good.

K&F’s build quality has been second to none in the last several years. They’ve created a series of extremely high-quality filters using very slim precision machined brass rings ( brass is a much better material to use for this purpose than aluminum. It’s much less likely to strip threads or to cross thread) and excellent optical glass.This filter is no exception. It has absolutely no optical distortion whatsoever. It filters UV and pretty much nothing else I think it has about a 99.9% visible light transmission.Most people use UV filters to protect their lenses but it’s also helpful to filter out UV light for photographic reasons. It can help to increase the life of your camera sensor and prevent distortion in the images.The anti-reflection coding on this is extraordinary. This competes well with my expensive high end German filters that cost up to four times as much money.This filter is slim enough that it should not interfere with the image or create any vignetting even with wide-angle lenses.This is my review for the UV filter but honestly every K&F filter I have purchased has been extraordinary.Look at the photo and see if you can tell any difference.

Compact but super powerful crystal clear monocular for a serious hiker or an outdoor adventure seeker. It's always important for me to have handy binoculars or monoculars nearby to take an exceptional look at nature and our oceans and mountains. Also great for bird watching and sporting events.
K&F Concept has done it with this very affordable monocular right here. This is 10-30x40 means not only can you see the object brightly and clearly, but you can also use the zoom function. With my years of experience with binoculars and monoculars, I'd like to suggest that if you're going over anything over seven power, it's better to use a tripod. Most people blame monocular, but it's actually their hands/body movement (nothing wrong with the product) This monocular comes with excellent built-in tripod screw function. Please see all my pictures and decide for yourself.
Also, I would like to point out that the lens is 40mm with a perfect 20mm eye lens. Even when the sun goes down, you can have a wonderful view because of the larger size of the objective lens. It will take a few times to perfectly open the monocular but it is to be expected from such a wonderful product. Enjoy the sightseeing!!!
PLEASE NOTE: Tripod is not included, but it will fit any tripod. The zoom image I took is only at 10 power. It's my cell phone picture nothing fancy. Amazing right!