MC Tele Rokkor - PF 1:2.8 f=135mm


We know two different versions of the 135mm 2.8 MC-Rokkor, that are very different:

The first version is based on the classical Auto Rokkor style and extended with a meter coupling. The aperture number can not be seen in a viewfinder with aperture-read-in function.

The second version is typical MC Tele Rokkor style and more heavy. The aperture number can be seen in a viewfinder with aperture-read-in function.

MC Tele Rokkor - PF 1:2.8 f=135mm Version 1
Focal length: 135mm fix
Aperture range: 1 : 2.8 - 22
Aperture type: Automatic iris, 6 blades matte.
Optical design: 6 lenses / 5 groups
Detailed optical design, front to mount: 4 lenses / 3 groups
- aperture -
2 lenses / separate.
Close-up distance: 1.5m
Filter size, mount type: 55mm fixed
Shade type: Screw-in
Length from mount plane, focus at infinity / close-up: 94mm / 109mm
Diameter: 62mm
Weight: 428g
Lens coating: Single coating, yellow-blue-purple complementary. One green layer.
DOF type: Wheel.
Supported aperture functions: Stopdown metering: Yes.
Automatic diaphragm: Yes.
Meter-coupled TTL: Yes.
Aperture read-in: No.
Supported camera modes: M, manual: Yes.
A mode: Yes.
S mode: No.
Program mode: No.
Front view:
Overview:

The aperture ring is located in the center of the lens.
Rear view:

Black mount, often seen with later versions of the Auto Rokkor types.
Detail 1:

Wheel shaped DOF lever.
Detail 2:

Meter coupling stick, built through the lens. Typical for intermediate MC Rokkor, that is based on the old Auto Rokkor style. The aperture number can not be seen in a viewfinder with aperture-read-in function.



MC Tele Rokkor - PF 1:2.8 f=135mm Version 2
Focal length: 135mm fix
Aperture range: 1 : 2.8 - 22
Aperture type: Automatic iris, 6 blades matte.
Optical design: 6 lenses / 5 groups
Detailed optical design, front to mount: 4 lenses / 3 groups
- aperture -
2 lenses / separate.
Close-up distance: 1.5m
Filter size, mount type: 55mm fixed
Shade type: Built-n.
Length from mount plane, focus at infinity / close-up: 94mm / 109mm
Diameter: 68mm
Weight: 516g
Lens coating: Single coating, yellow-purple complementary. One green layer.
DOF type: Wheel-shaped lever.
Supported aperture functions: Stopdown metering: Yes.
Automatic diaphragm: Yes.
Meter-coupled TTL: Yes.
Aperture read-in: Yes.
Supported camera modes: M, manual: Yes.
A mode: Yes.
S mode: No.
Program mode: No.
Front view:

Polished silver front.
Overview:

Built-in lens shade, rear aperture ring.
Rear view:

Silver mount typical for MC Rokkor style.
Detail 1:

The DOF lever is wheel-shaped.