Cokin Center Spot Green Creative Camera Filter M (P) Series P065

The Cokin Green Center Spot filter has a clear centre and diffused green edges. These diffused edges will produce blur 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 blurring than a 28mm. Additionally, a longer focal length lens will visually increase the size of the centre spot area because it sees less of the filter area.
How to use Center Spot ? The shorter the focal length, the more visible the zone. As for the transition from sharp to soft, it depends on the aperture: the wider it is, the more diffuse the transition will be. For a correct adjustment with auto-focus reflex cameras, the choice of an AF central collimator is obviously required. We also recommend working with apertures of f/5.6 or f/8 in order to keep a sufficiently blurry transitional zone. A strong backlight brightens the effect of the filter. Uncolored Center Spot filters create blur around the central subject in a completely natural-looking way, giving the subject prominence in the image. Grey and Colored Center Spot filters work by blurring and darkening the periphery of the image in a more or less noticeable way. The intensity and the quality of the central subject’s lighting are clearly emphasised. Oval Center Spot filters are made for larger or taller subjects.
Specs: – Filter Dimensions: 84mm x 84mm x 1.6mm – Filter Construction: C39 Optical Resin – Filter #: 065