Reviews
Good quality in relation to the price, about 1 light intensity is lost.
K&F Concept circular polarizing filter, Nano-K model, in the 67mm version. I tested it on a Tamron 28-75 F2.8 and compared different shots to see the loss of light and sharpness with and without the filter. It comes in a pack that also includes a front cap, a wrist strap and a microfiber cleaning cloth. The filter has a very good build quality and has reliefs on the front that allow easy rotation. The polarizer effect is clearly visible, similar to more expensive products. In all the conditions in which I tested it, it loses 1 stop of light. The sharpness remains similar to the lens without the filter, you notice less detail when you zoom more than 200%, otherwise they look like two identical photos (the one with the polarizer is darker if you don't change the shooting parameters). The thread flows very well, as with all filters it tends to fit too tightly to the lens and then becomes difficult to remove if you're not careful. Very low price, good value for money.
19/06/2024