These filters measure 66 x 72mm and fit the Cokin A series holder.
Diffuser 2 (084)
Cokin Diffusers have very little effect on the sharpness of the image. They merely diffuse highlights thus reducing contrast. As such, diffusers can be used to soften a landscape, or soften skin texture in a portrait to hide minor flaws. Cokin Diffusers are available in three grades, #1 (#083), #2 (#084), and #3 (#085) with #3 having the greatest effect.
Center Spot Yellow/Pink (673)
The Cokin Bi-Color Center Spot Yellow/Pink filter has a clear spot in the center and allows for the portrayal of an object in a yellow and pink random surrounding. The filter effect is directly influenced by the f-stop and the focal length. The transformation is softer with wider apertures. The size of the clear circular area increases relatively with the selection of longer focal lengths. The exposure determination should be done without the filter. If the camera has the capability of spot-metering, then one can measure with the filter in place.
Sepia 3
Cokin Sepia filters give an overall nostalgic, "Turn of the Century", look to otherwise ordinary color photographs by tinting them with an antique (brownish) hue. In this way, your photos will take on the look of having been shot many years ago in Black and White. The Cokin 045 is also a sepia filter but the effect is not as strong.