Nicely made filters when you want to add a little something extra to your night shots.
Well made wit clean threads, and packaged nicely too.
Price is nice and it adds versatility to your camera kit.
Not a filter for every situation but lights at night look pretty cool with this thing!

I got the K&F Concept 77mm Star Filters Kit, which made up of 4 point, 6 point, and 8 point cross screen star filter and three cleaning cloth. These ultra slim optical glass filters are superbly constructed with an 18 layers of coating to minimize reflection and flare.

I have been quite enjoying using these filters on the lens to get these effects especially star burst on highlights on street lights at night. The 4 point filter adds just a hint of a starburst to the image while the 8 point filter causes light sources to leap right off the screen with beams of light stretching out farther.

The filters come in a nice plastic case and they look very robust and feel the same way, too. They sit on smoothly to my lenses and as of now, I have not had to deal with vignette problems at all. Image quality is maintained at a high level while there are no significant lose of sharpness or increase of aberrations.

It is surprising to achieve such wonderful creative outcomes for such a fairly low price. If you want a filter, that will not only give you a nice bokeh and add some drama and interest to your photos, then I suggest you try the K&F Concept’s 77mm Star Filter kit. An easy 5 stars!

If you want to catch some artsy, stylish looks from reflective surfaces or direct light this is the way to do it. K&F has been a staple in my kits for a couple years now. This is cool filter WHEN I WANT TO ADD A SPECIFIC LOOK. Know what you’re going for and setup accordingly.

Good quality and works well.
I don’t use it to protect my glass but to get those nice bursts.

There are several things I like about this set, but first I'll tell you what I think of the filters.

First is that there are 3 of them to choose from, 4, 6, and 8 point, so that I have the flexibility to make the shot I desire based on the lighting situation. Next is the quality of the mounting. Several screw-filters I've used are difficult to attach resulting cross-threading or sticking. These have well cut threads that are easy to get on and off my lens. Also, and very importantly, is that the filter can be turned after it is attached so that the photographer can adjust the angle of the star points to suit the frame.

I've read that some star filters reduce the quality of the image, but I have yet to see that with these filters. With or without them, the clarity seems to remain the same to my eye. If you have a better eye for this, you may see a difference, but I cannot.

Due to weather issues I have yet to take these out at night for a full test. I've been limited to using my phone flash to see what they do to bright, pinpoint lights, so take this with a grain of salt. With a flashlight in a darkened room (not dark, darkened), the points are refracted into thin rainbows as shown in their picture of the diamond. Truly a beautiful look.

Lastly I'd like to point out the superior case they come in. It looks really good, but the most important part is that each pocket is made with a very nice material similar to my wife's yoga pants. Once folded up, it is held closed with industrial grip hook and loop (think: Velcro). Inside this case, these filters are very well protected.

I highly recommend these.