|MACRO||Macro lens. Designed for close-up photography.|
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|Model number:||11232 Helical|
|11270 Bellows Set|
|Maximum format:||35mm full frame|
|Diagonal angle of view:||24.4° (35mm full frame)|
|Lens construction:||4 elements in 3 groups|
|Number of blades:||8|
|Closest focusing distance:||60 cm|
|Magnification ratio:||1:3 at the closest focusing distance|
|Maximum diameter x Length:||Ø67.5 x 90 mm|
Design and Features
Initially the lens was designed only for use with 16860 Universal Focusing Bellows-R for Leicaflex SL, was produced since 1968 and provided magnification ratio of 1.1:1. The newer version (11270) was used with Focusing Bellows-R BR2 (16880). Optically it is a triplet type Elmar lens invented by Max Bereck in 1924 (or maybe even earlier). The lens can be used with macro adapter which provides magnification ratio of 1:1.6 at reduced minimum focusing distance of 30 cm.