| Brand | FREEWELL |
| Material | Glass |
| Photo Filter Thread Size | 77 Millimeters |
| Coating Description | No Coating |
| Photo Filter Effect Type | Ultraviolet |
| Water Resistance Level | Water Resistant |
| Photo Filter Factor | 2 x |
| Product Dimensions | 4.41″L x 4.41″W |
| Photo Filter Size | 112 Millimeters |
| UPC | 685757793773 |































Dr. Skylar Armstrong Sr. –
I love these filters. They are very thin and high quality. Still I have to do more testing to see how it affect the picture if any. However, my initial tests are very positive. It is so easy to carry these and attach to the lens. I hate screw in filters that takes time to fit to the lens even some of the best quality filters.However I have few requests to Freewell.1. They should sell, those screw in base UV filters separately. I have like 5 lenses and I would like to keep the base UV filter screwed in all those lenses so I can use the main filters on all of them.2. Some people do not like UV filters. So for those people they should make just the ring that screws into the front.3. Magnetic step up rings ( they are working on it as I saw in the youtube ).4. Variable ND. Having individual ND filters are good. But when you are working on situation where taking a filter and attaching is not an option or time consuming then Variable ND filters become very handy. True that it may affect the picture quality a tiny bit. But if polarpro can make really nice VND filters then I guess Freewell can do it too :)Overall, I definitely would recommend them for any photographer or videographer. I got CPL and ND1000/PL. They work very well and I know I would use them much more now.
Lenora Schuster –
Any landscape photographer knows the struggle. The light is changing fast, and you need to switch lenses for a new composition. You scramble to screw your polarizer or ND filter off one lens to the other in time and before you know it the sun sets or a cloud moves in the way.The magnetic system is not a gimmick, it’s a game changer, and saves tons of time messing with finnicky threads. I will never move back to screw on filters. These are well made, all metal construction, and optically good for the money based off independent comparisons and my own use. I have a 42MP full frame camera and still get tack sharp images using the polarizer or 6 stop/10 stop ND filters.I had some problems with some of the filters I ordered: The base magnetic ring was not included with one, and on the other it was not screwed in properly. After contacting freewell they immediately sent two brand new ones at no extra cost.Minor complaints: There is some vignetting at the edges at 17mm on a full frame camera, and the magnetic strength of the caps is stronger than the filters themselves, so if you have a cap on top of a filter sometimes you accidentally pull the filter off as well.