Pentax HD DA 645 28-45 mm f/4.5 ED AW SR
This is a medium-format zoom lens for Pentax 645, covering 28-45 mm and a maximum aperture of f/4.5. Released in 2014, it weighs 1470 g, is weather-sealed and includes optical stabilization. That combination suits street and travel photography.
It is a zoom lens designed for medium format cameras. This wide-to-standard zoom lens features a f/4.5 maximum aperture, making it ideal for landscape, street, documentary, everyday. The optical design incorporates 17 elements / 12 groups, ensuring sharp image quality and minimal distortion. Despite its robust professional construction, the lens delivers exceptional optical performance.
- f/4.5
- Aperture
- 28–45mm
- Focal
- 1470 g
- Weight
- Aug 2014
- Released
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Landscape
DocumentarySpecification
- Focal length
- 28-45 mm
- Maximum aperture
- f/4.5
- Minimum aperture
- f/32
- Number of diaphragm blades
- 9
- Optical construction
- 17 elements / 12 groups
- Minimum focusing distance
- 0.40 m (15.75 inches)
- Filter size
- 82 mm
- Lens mount
- Pentax 645
- Dimensions
- 99 x 151.5 mm
- Weight
- 1470 g (51.85 oz)
- Lens type
- Zoom lens
- Image stabilization
- Yes
- Max Format size
- Medium format
- Aperture ring
- No
- Weather sealing
- Yes
- Usage
- Landscape, Street, Documentary, Everyday
Wide open at 2 m, background blur ≈ 0.6% of the frame width
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