Sinaron Copal Lenses Sinaron large-format lenses can also be fitted with a Copal between-the-lens shutter. However, these type of lens mount do not offer the same operation convenience provided by the Sinar Auto Aperture Shutter and the lenses mounted in DB. Application Sinaron large-format lenses in Copal shutter fit the following Sinar view cameras: Sinar p2 4x5", Sinar p2 5x7", Sinar p2 8x10", Sinar p1 4x5", Sinar p1 5x7", Sinar p1 8x10", Sinar x 4x5", Sinar f2 4x5", Sinar f2 5x7" Sinar f2 8x10", Sinar f1 4x5". To see if a specific lens covers the required image circle of a specific film format, please check the respective lens table. Existing large-format lenses can be fitted with a Copal between-the-lens shutter by means of the appropriate conversion kit. The Sinar range of large-format lenses in Copal shutter includes the following types of lenses: Sinaron-S Lenses Standard lenses featuring an enlarged image circle with an angle of view of 72°. Allows greater freedom for camera adjustments than conventional normal focal lengths that have an angle of view of only 53°. Available with focal lengths of 135, 150, 180, 240, 300 and 360mm Sinaron-SE Lenses This design represents state of the art technology with an angle of view of 75°. Significant improvements over earlier comparable lens types in terms of image quality, especially in the close-up range. Stray light within the lens amounts to less than one percent, producing better contrast in the images. Improved color correction by the use of ED glass type. Available with focal lengths of 135, 150, 180, 210, 240, 300 and 360mm

Image: Igor Sakharov Sinar Lens Philosophy Sinaron Large Format Lenses - Table