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The main feature of this filter is its unique design with a polished, plain area of 25mm at the center. This allows for sharp, in-focus images at the center, transitioning to a soft, out-of-focus zone towards the edges.
Yes, the effect produced by this filter is fully controllable, ranging from subtle to strong. This variability is dependent on the strength of the diopter, the diameter of the plain area, and the focal length used.
Schneider-Kreuznach offers this spot diopter in three variants: plain areas of 25mm combined with diopter strengths of either +1/2, +1, or +2.
The filter is designed as a 138mm drop-in filter cell, making it compatible with suitable matte boxes.
Like all Schneider-Kreuznach products, these filters are made in Germany, ensuring superior quality and performance.
Review Summary
+1/2, +1, +2
1" (25mm)
5.4" (138mm)
Close-Up
BBAR
N-BK 7
Drop-in filter cell
Germany
4012240053919
Shortly after the launch of its color-neutral Classic ND filter collection, the German manufacturer now introduces its brand-new spot diopters.
With a plain, polished area of either 25mm in its center, this special filter type provides sharp images in the middle and an out-of-focus zone towards the edges of the frame. This results in dreamy images with an in-focus center that guides the eye of the viewer towards a designated area.
The effect is controllable and reaches from subtle to strong, depending on the diopter's strength, the diameter of the plain area, and the used focal length. That is why Schneider-Kreuznach offers its spot diopters in three variants: Plain areas of 25mm combined with diopter strengths of either +1/2, +1 or +2.
Given that they are produced as 138 mm drop-in filter cells, the spot diopters are usable in compatible matte boxes. Furthermore, the filters are made in Germany.