Mamiya Sekor AF 28mm f4.5 D Asph. Lens Overview
This full-frame ultra wide angle lens is the world’s first medium format 28mm lens that can be used for film and digital backs. The use of aspheric lens elements produces outstanding optical performance.
The 28mm f4.5 D is a full-frame, ultrawide lens that utilizes the latest aspheric lens technology to produce high resolution and large image circle coverage for film and digital backs. Since wide angle lenses can cause color shift problems with digital backs (due to the extreme angle at which light rays hit the sensor), the Mamiya 28mm f/4.5 D has been designed to direct light rays so that they are parallel when they hit the sensor – producing maximum sharpness, color accuracy and contrast.
Unlike conventionally designed digital lenses, the 28mm f/4.5 Sekor D Aspherical was designed with the requirement that it works with digital and film systems. It is the world’s first 28mm medium format lens with this capability. The Mamiya Sekor AF 28mm f/4.5 D is ideal for a wide range of applications, including commercial, architectural and outdoor photography.
This full-frame ultra wide angle lens is the world’s first medium format 28mm lens that can be used for film and digital backs. The use of aspheric lens elements produces outstanding optical performance.
The 28mm f4.5 D is a full-frame, ultrawide lens that utilizes the latest aspheric lens technology to produce high resolution and large image circle coverage for film and digital backs. Since wide angle lenses can cause color shift problems with digital backs (due to the extreme angle at which light rays hit the sensor), the Mamiya 28mm f/4.5 D has been designed to direct light rays so that they are parallel when they hit the sensor – producing maximum sharpness, color accuracy and contrast.
Unlike conventionally designed digital lenses, the 28mm f/4.5 Sekor D Aspherical was designed with the requirement that it works with digital and film systems. It is the world’s first 28mm medium format lens with this capability. The Mamiya Sekor AF 28mm f/4.5 D is ideal for a wide range of applications, including commercial, architectural and outdoor photography.
Compatible cameras
645AF (requires upgrade to 645AFD)
645AFD/645AFDII
ZD camera (requires firmware upgrade)
Optical construction
10 groups/14 elements
Angle of View
102° / 94° with ZD back
Aperture Range
f/4.5 ~ 32
Min. focus distance
1.15ft. (0.35m)
Max. magnification
0.15x
Area covered
372 x 276mm
Equivalent in 35mm
17mm/20mm with ZD back
Filter
Sheet filter on the rear mount
Hood
Built-in
Dimensions (LxD)
5.35 x 3.54in. (136 x 90mm)
Weight
1.9lbs. (886g)
645AF (requires upgrade to 645AFD)
645AFD/645AFDII
ZD camera (requires firmware upgrade)
Optical construction
10 groups/14 elements
Angle of View
102° / 94° with ZD back
Aperture Range
f/4.5 ~ 32
Min. focus distance
1.15ft. (0.35m)
Max. magnification
0.15x
Area covered
372 x 276mm
Equivalent in 35mm
17mm/20mm with ZD back
Filter
Sheet filter on the rear mount
Hood
Built-in
Dimensions (LxD)
5.35 x 3.54in. (136 x 90mm)
Weight
1.9lbs. (886g)
