The Cokin Black Oval Center Spot filter has a clear center and diffused edges. Theses diffused edges will be produce blur and vignetting while leaving the center sharp. The filter effect is directly influenced by the f-stop and the focal length. A lens shot at f/1.4 will see a greater blurring effect than f/8.0 and a 85mm lens will see more blur than a 28mm. Additionally, a longer focal length lens will visually increase the size of the center spot area because it sees less of the filter area.
M (P) - 84mm x 84mm x 1.6mm
L (Z) - 100mm x 100mm x 1.6mm
XL (X) - 130mm x 130mm x 3mm
|Filter Construction||C39 Optical Resin|
|Includes||1 - Black Oval Center Spot Filter (141)|
M (P) 85831448832