Reviews
Nice star effect without optical disturbances
After my first attempts with the 4-beam star filter from K&F Concept, which I tested first, I was a bit uncertain as to whether I would give this filter the full five stars. Unfortunately, as far as my taste is concerned, this filter does not work against a beautiful multi-beam dazzle. In addition, the filter creates a certain aura with every light source, as is known from crap filters. The filter for 6-ray stars tested here shows the stars a good deal better in direct comparison, the crap effect is obvious here too, it remains a compromise.
The truth is, of course, that you only get a beautiful aperture star with most lenses when the aperture is significantly closed. It is not always possible and not always wanted. With this filter, if all other parameters are correct, you get an aperture star even openly. To do this, the light source must be bright and as small as possible. Unlike the rays that my aperture produces, the rays are significantly wider here. It was also remarkable that the rays are shorter with the 6-way filter than with the 4-way filter at the same setting. Perhaps a very interesting fact that the effect appears to be more concentrated due to fewer rays.
Remarkably, you don't see a prism effect here, which fans out the rays in a colorful way like a rainbow. The light color of the light source is retained very well. I think that's great and has already bothered me a lot about other star filters. After the thread and filter glass are rotatably connected, the beams can be oriented as required.
As usual with K&F filters, the workmanship is absolutely convincing. The thread runs easily when screwed onto the lens and the glass rotates easily but not too easily. The filter comes in a practical plastic box and three of the well-known welded K&F cleaning cloths are also included.
Given the fairly fair price, this is a nice solution for anyone looking for exactly this effect
My rating: 5 stars — perfect product, or at least almost
transparency: I received this item free of charge for a product test. However, that doesn't affect my rating. This is done just as honestly and critically as with the articles I paid for. I have not carried out a professional product test here, but am evaluating the product as a normal consumer.
The truth is, of course, that you only get a beautiful aperture star with most lenses when the aperture is significantly closed. It is not always possible and not always wanted. With this filter, if all other parameters are correct, you get an aperture star even openly. To do this, the light source must be bright and as small as possible. Unlike the rays that my aperture produces, the rays are significantly wider here. It was also remarkable that the rays are shorter with the 6-way filter than with the 4-way filter at the same setting. Perhaps a very interesting fact that the effect appears to be more concentrated due to fewer rays.
Remarkably, you don't see a prism effect here, which fans out the rays in a colorful way like a rainbow. The light color of the light source is retained very well. I think that's great and has already bothered me a lot about other star filters. After the thread and filter glass are rotatably connected, the beams can be oriented as required.
As usual with K&F filters, the workmanship is absolutely convincing. The thread runs easily when screwed onto the lens and the glass rotates easily but not too easily. The filter comes in a practical plastic box and three of the well-known welded K&F cleaning cloths are also included.
Given the fairly fair price, this is a nice solution for anyone looking for exactly this effect
My rating: 5 stars — perfect product, or at least almost
transparency: I received this item free of charge for a product test. However, that doesn't affect my rating. This is done just as honestly and critically as with the articles I paid for. I have not carried out a professional product test here, but am evaluating the product as a normal consumer.
21/02/2026