NiSi - Cinema 4x5.65 Pure Clear Lens Filter, Uncoated Protective 4x5.65 Filter for Matte Boxes, Optical Glass, w/Carrying Pouch, Camera Matte Box Photography Accessories, Cinematography & Videography

Used it with my Smallrig hood & you can feel the quality. Protect the lens and client was impressed. Very clear! Must get if you need!

I was pleasantly shocked at the quality of this filter for the price. It's crystal-clear, no signs of any optical distortion that I can detect, and the edges are ground and finished immaculately. Also comes in a very nice pouch. I know it's just a clear filter, but the fact that you can get a pristine 4mm hunk of optical glass of these dimensions for less than the cost of a totally average 52mm screw-in protector filter is kind of crazy.

Was looking for something to pair with my Tilta mini matte box. This glass fits securely, is crystal clear and will protect my expensive lenses.

This glass is great for protecting your lens from the elements during a shoot also this glass is great for making DIY Filters I might buy more to make more filters I’ve notice some artifacts the glass might produce when the lens is closed down more

This works great with the small rig matte box and makes a perfect clear shield for camera lenses. Thick and most excellent quality. Rub a small bit of Vaseline or olive oil for great soft edge effect. Wash of with warm water and let creativity run wild

It fits well in my Tilta Mattebox, protects the lens, easy to clean, comes with a nice soft carry case. It's the same quality of material that you'll find in their more expensive line of filters!

Top quality and good security in delivery

In a world of overpriced film gear, at least this is fairly priced. Crystal clear

superb for cinematic shots and to protect your lenses when you have a matte box mounted

Over the course of nine months, I have rigorously tested the NiSi Cinema 4x5.65'' Pure Clear Filter, and it has indeed stood the test of time. While it may command a slightly higher investment than its lesser-priced counterparts, it simultaneously offers an attractive alternative to the exorbitantly priced big-name brands. In my estimation, this product strikes a commendable equilibrium in terms of quality, cost-effectiveness, and durability, thus emerging as the 'golden mean'. It is rare to find such an appealing blend of these critical attributes in a single product, particularly in an industry segment characterized by marked price disparities. Throughout my usage period, the NiSi Cinema 4x5.65'' Pure Clear Filter has functioned flawlessly, presenting zero complications or issues. I am thus inclined to recommend it to my professional peers who are seeking a superior alternative to the prohibitively expensive premium brands. In conclusion, the NiSi Cinema 4x5.65'' Pure Clear Filter offers excellent value, without compromising on quality or durability. It is a judicious choice for those professionals who appreciate the necessity of investing in a tool that delivers consistently high performance, without overstretching their budget.

This should say in huge bold letters: IT REFLECTS YOUR LENS 100% YOUR LENSE WILL REFLECTION WILL SHOW ON YOUR FOOTAGE AT ALL TIMES DURONG YOUR DAYTIME SHOOTINGS NO MATTER IF YOUR USING MATTE BOX WITH SUN FLAPS. For the price this filter should have at least some anti reflective coating. It’s quite disappointing. I wish I could post screen captures here.

Well packaged and does what it says