This little beast of a filter has been my favorite new tool for my last few video shoots. This makes my job easier because now I can make a rapper or artist look trippy without visual effects. It also feels very heavy. I had never spent that much money on a filter before, but this one was definitely worth it. I will update this review if anything changes.

I've been looking for something to spice up my recordings lately. I'm tired of boring looking frames. I rolled the dice on this filter and in the end it was just what I needed. I love it

I used it on a music video shoot last week and it's safe to say the clients loved it. Oh, and the red ring around the filter is a nice touch, making it look really elegant on my lens. I wish all my filters had it. 10/10

I got this prism last week and as you can see from my example photo it works amazingly well! It is easy to apply to the lens and creates an incredible effect! If you are interested in concert photography, I would definitely recommend this!

A good quality filter that is great if you want an anamorphic look. Obviously it can't compete with a true anamorphic lens, but it offers a blue stripe look when you're aiming at certain light sources.

The intensity or size of the streak depends on the brightness of the light source and the number of lights, for example: My video light has multiple LEDs, which makes it look unappealing, whereas a single light is more comfortable.

Overall it's a decent filter, there's only one time and one place for it.

I really like that the filter is unlike any other filter on the market (at least to my knowledge). Haven't tried it during the day but at night when I want to change the shot it's fantastic.

Best quality filters out there... at this price point it doesn't get any better. It's so much fun to use and adds a cool personality to photos. Definitely a must have in your camera bag.

I had fun playing with this Blue Streak filter. It creates blue stripes on your subject or, depending on the setting, light stripes. I enjoy capturing unique shots with the camera and this one is really great. It rotates 360 degrees on your lens, allowing you to rotate the strips in any direction.

I have always been satisfied with products from the K&F Concept brand. The filter was clean and ready to use, which is a rare treat. It also comes with a durable carry case and microfiber cloth.

Very happy with this filter.

It was delivered much earlier than expected (4 days after receiving my order), anyway the product is really fantastic and does a better job, I thought it would be better with the price. I highly recommend it for a cinematic look like the one I have in this image and video I made with the filter (blue version)

This filter is very interesting. As stated in the product description, it mimics the flare of an anamorphic lens. However, this effect comes with some caveats.

First, this filter creates this effect using small lines of a blue diffusion-like material. That gives you an anamorphic look, but it tends to overdo it. Flares are much more solid than a true aspheric lens and become unusable in locations with many large light sources. However, this is better than buying a $2000 Sirui lens unless you have two grand sitting around.

Second, since the filter uses physical material to create the effect, it's easily visible when you're looking for it, otherwise it disappears in the image. In my experience, this side effect worsens with longer focal lengths.

Third, because the filter uses a physical material to mimic an anamorphic lens, autofocus sometimes gets muddled. I used this filter on my Sony A7IV with a Sigma 24-70mm 2.8 lens. At around 24mm, the autofocus would occasionally go haywire. Again, longer focal lengths exacerbate this problem, especially when focusing on subjects closer to the lens.

Pros: This filter is very cool despite the caveats I discussed. I used it in a short film and I loved it. is it perfect No, but nothing ever is. If you are looking to buy this filter I would recommend it. However, if you have a few thousand dollars burning a hole in your pocket, buy a true anamorphic lens like a Sirui 100mm. Overall a great purchase I have no regrets but be aware of the issues involved. If you want to use a fisheye lens: maybe not for you. If you want to get very close to a topic: Not for you. If you want to shoot in dynamic lighting with a longer focal length: this is for you.