Pentax smc FA 645 33-55mm f/4.5 AL Lens (123894)
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Pentax 645 Mount
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26-43.5mm (35mm Equivalent)
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Aperture Range: f/4.5-32
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Two Aspherical Elements
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Low-Dispersion Glass Elements
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Construction: 11 Elements / 8 Groups
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Minimum Focus Distance: 40 cm
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Eight Blade Diaphragm
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Front Filter Thread: 82mm
The Pentax smc FA 645 33-55mm f/4.5 AL Lens is a wide-angle zoom lens designed for use with medium format Pentax 645 mount cameras. It features an aperture range of f/4.5-32 and has a 35mm equivalent focal length of 26-43.5mm, providing a very useful range of wide-angle lengths. This lens in particular utilizes two aspherical elements that greatly reduce distortion, field curvature, and coma aberrations common with wide angle lenses.
The 33-55mm features a lens construction of 11 elements in 8 groups, including some high refraction low-dispersion glass. To maintain image quality, it uses a 3-group floating zoom to reduce field curvature throughout the range. Also, the 33-55mm has a minimum focus distance of 15.7".
For smooth out-of-focus areas, the lens has an eight blade aperture diaphragm. Additionally, it features an 82mm front filter thread.
- 35mm focal length equivalent of 26-43.5mm
- Aperture range of f/4.5 to f/32
- Angle of view of 80° to 53° which equates to 65° to 43° on Pentax 645 digital cameras
- Lens construction of 11 elements in 8 groups
- Low-dispersion glass elements help to minimize chromatic aberrations and maximize sharpness
- Accepts 82mm threaded filters
- Minimum focusing distance throughout the zoom range is 40 cm
- Super Multi Coating increases light transmission as well as helps to eliminate ghosting and flaring
- Works with both film and digital formats
- Aperture ring and focusing distance scale
- Eight diaphragm blades for smooth out-of-focus areas
- MPN - 26775
- GTIN - 027075063228
Specification
Distance Scale: | Yes |
Magnification: | 0.21x |
Image Stabilization: | 11 Elements in 8 Groups |
Autofocus: | Yes |
Focal Length: | 33 - 55 mm |
Aperture Range: | Maximum: f/4.5 Minimum: f/32 |
Camera Mount: | Pentax 645 |
Minimum Focusing Distance: | 15.75“ (40 cm) |
Angle Of View: | 80° - 53° @ Infinity |
Groups: | 8 |
Diaphragm Blades: | 8 |
Filter Size: | Front: 82 mm |
Tripod Collar: | No |
Elements: | 11 |
Dimensions (DxL): | Approx. 3.46 x 4.09“ (88 x 104 mm) |
Weight: | 585 |
Pentax smc FA 645 33-55mm f/4.5 AL Lens
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Front Lens Cap
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Lens Hood
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Limited 1-Year Warranty