Mamiya Introduces Two New Digital Lenses for Mamiya Medium Format Cameras
Elmsford NY, March 19, 2007 — Mamiya has announced two new high performance digital (Mamiya Sekor D Series) lenses for the Mamiya 645AFD II and the newly announced 645AFD III camera systems.
“Like all lenses in the Mamiya Sekor D series, the optics have been designed specifically to direct light onto the digital sensor at an angle ideal for digital photography,” says Jeff Karp, Mamiya Product Marketing Manager. “The resolving power of these new lenses corresponds perfectly with the requirements of today’s high megapixel sensors. The continuing goal of Mamiya is to produce optics that exceed current standards for modern photographic lenses.”
Mamiya’s newest lenses – Mamiya Sekor AF 150mm f2.8 IF D and 45-90mm Zoom AF f/4.5 D Aspherical – are important additions to Mamiya’s growing line of high performance digital lenses. Consistent with all new lenses being developed for the D Series, these new lenses contain a 16bit CPU allowing easy firmware upgrading, finer lens characteristic correction and faster, more reliable communication between the lens and camera body.
Mamiya Sekor AF 150mm F2.8 IF D Lens
The Mamiya Sekor AF 150mm F2.8 IF D is Mamiya’s fastest telephoto lens. The use of low-dispersion glass allows correction of chromatic aberration and produces critically accurate color and high contrast images from infinity to the closest focusing distance. With an angle of view of 26 degrees, the lens is equivalent to a 93mm telephoto lens in the 35mm format. The minimum focusing distance is 3.3 feet, which is 1.8 feet closer than the existing AF 150mm F3.5 lens. The use of internal focusing (IF) makes the lens extremely well balanced and perfect for hand-held photography. Autofocus and manual focus functions are easily selected with one-touch action; simply move the focusing ring backwards or forwards. With shallow depth of field and close focusing capabilities, this lens is ideal for portrait photography.
Specifications Lens Construction: 8 elements, 7 groups
Angle of View: 26 degrees
Aperture range: f/2.8 ~ 22
Minimum Focusing Distance: 3.3ft (1m)
Maximum Magnifying Ratio: 0.19
Area Covered: 218 x 295mm
Equivalent Focusing Length for 35mm format: 93mm
Filter Diameter: 72mm
Lens Hood Type; Bayonet
Dimensions (Length x Diameter): 4.7 x 3.3 inches (120 x 85mm)
Weight: 1.7 lb (780g)
Equivalent Focal Length with ZD Back: 174mm for 645 format
108mm for 35mm format
CPU: 16 bit (rewritable)
Compatible Cameras: Mamiya 645AFD II, 645AFD III & ZD
Availability: May 2008
Mamiya Sekor Zoom AF 45-90mm F4.5 D Aspherical
This newest zoom lens in the Mamiya Sekor Digital Lens Series is a wide angle to normal lens that utilizes the latest aspheric lens technology and low dispersion glass to produce high resolution and large image circle coverage for film and digital backs. By incorporating an aspherical lens element and specialized glass, compact dimensions, excellent color accuracy, outstanding edge sharpness and high resolving power is achieved.
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 Sekor Zoom AF 45-90mm F4.5 D Aspherical has been designed to direct light onto the digital sensor at an angle that is ideal for digital photography.
With an angle of view of 42-76 degrees, the 45-90mm is equivalent to a 28-56mm lens in the 35mm format. Autofocus and manual focus functions are easily selected with one-touch action; simply move the focusing ring backwards or forwards. The floral hood can be used on the entire zoom range to effectively block unwanted light. In addition, the minimum focusing distance of 19 inches and its effective zoom range make it versatile enough to be considered a multi-purpose lens capable of architecture, landscape or snapshots.
Specifications Lens Construction: 13 groups, 10 elements
Angle of View: 72-46 degrees
Minimum Aperture: f/4.5 ~ 32
Minimum Focusing Distance: 19 inches (50cm)
Maximum Magnification Ratio: 0.12-0.24
Area Covered: 340 x 459mm at 45mm
110 x 86mm at 90mm
Equivalent Focusing Length for 35mm format: 28-56mm
Filter Diameter: 77mm
Lens Hood Type: Bayonet Floral shaped Hood
Dimensions (Length x Diameter): 4.3 x 3.4 inches (110 x 86mm)
Weight: 2 lb. (910g)
Equivalent Focal Length with ZD Back: 52-105mm for 645 format
32-65mm for 35mm format
CPU: 16 bit (rewritable)
Compatible Cameras: Mamiya 645AFD II, 645AFD III & ZD
Availability: TBA |
