Carl Zeiss Planar 100 mm f/ 2 C/Y Lens Brochure

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Sonnar
®
 T
* f/2.8 - 135 mm
  
The 135 mm Sonnar
®
 f/2.8 lens comprises 5 
elements arranged in 4 groups. Like all Zeiss 
designs, this one was also developed in accordance 
with the established Zeiss practice of combining 
professional experience with a high-performance 
computer program devised by the company itself. 
The lens provides outstanding image quality and 
remarkably good image field illumination, both 
achievable when the diaphragm is fully open.
Alongside a wide-angle lens, this Sonnar
®
 lens, 
with a focal length approximately three times as 
large as the diagonals of the 35 mm format, is 
perhaps the most widely required interchangeable 
lens.
Regardless of whether it is landscape photography, 
fauna and flora studies, family shots or portraiture 
work, there will never be any shortage of subjects 
for which the 135mm focal length is particularly 
well-suited. With its help the photographer can 
bring up close fairly distant subjects without 
creating the flat perspective that sometimes mars a 
picture. On the other hand, picture-filling details 
can be selected without having to approach all that 
close. And finally, thanks to its moderate 
tele-perspective effect it is admirably suitable for 
portraits, either with the diaphragm fully open or 
slightly stopped down.
Cat. No. of lens: 10 10 83 Weight: approx. 585 g
Number of elements: 5 Focusing range: 
 to 1.6 m
Number of groups: 4 Entrance pupil:
Max. aperture: f/2.8 Position: 64.5 mm behind first lens vertex
Focal length: 134.1 mm Diameter: 47.8 mm
Negative size: 24 x 36 mm Exit pupil:
Angular field 2w: 18º diagonal Position: 32.4 mm in front of last lens vertex
Mount: focusing mount with bayonet; Diameter: 31.5 mm
TTL metering either at full aperture Position of principal planes:
or in stopped-down position. H:  8.7 mm in front of first lens vertex
Aperture priority/Shutter priority/ H':  1.5 mm in front of first lens vertex
Automatic programs Back focal distance: 54.3 mm
(Multi-Mode Operation). Distance between first and
Built-in lens hood. last lens vertex: 78.1 mm
Aperture scale: 2.8 - 4 - 5.6 - 8 - 11 - 16 - 22
Filter connection: clip-on filter, diameter 85 mm
screw-in type, thread M 55 x 0.75