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Pentax smc FA 645 55-110mm f/5.6 Lens
Model: 26765
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General Information
| Focal Length | 55 - 110 mm |
| Aperture | Maximum: f/5.6 Minimum: f/45 |
| Camera Mount | Pentax 645 |
| Angle of View @ Infinity | 53° - 28° |
| Minimum Focus Distance | 2.62' (.8 m) |
| Diaphragm Blades | 8 |
| Elements/Groups | 9/9 |
| Magnification | 0.16x |
| Distance Scale | Yes |
| Autofocus | Yes |
| Tripod Collar | No |
| Filter Thread | Front: 82 mm |
| Weight | 1.10 lb (500 g) |
| Dimensions | Approx. 3.46 x 4.09" (88 x 104 mm) |
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Useful focal range, very sharp, excellent @ f/11 and f/16, inexpensive.
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Better avoid f/5.6 and f/45.
I'd hoped this lens, which seems to have a similar optical layout to the greatly respected P67 55-100 lens, would be as sharp. Wide open, the lens is very soft in the outer 1/3 of the frame. Not until stopped down to f8 is most of the frame sharp and contrasty. By f11, the whole frame is sharp.
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small and convenient
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not sharp until f8-f11; req large 82mm filters
This is based on one sample on one 645z body. Comments refer to the central area of the lens only, as for my images I don't much care if the corners go soft. I also don't concern myself much with distortion, as it's so easy to correct. Most all of my images are in good light at base ISO.
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Relatively light and compact
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Feels cheap it's so light, 82 mm filters are expensive
- Pentax 645 Mount
- 43.5-87mm (35mm Equivalent)
- Aperture Range: f/5.6-45
- Extra-Low Dispersion Glass Elements
- Super Multi Coating
- Construction: 9 Elements / 9 Groups
- Minimum Focus Distance: 2.6'
- Eight Blade Diaphragm
- Front Filter Thread: 82mm
- Pentax smc FA 645 55-110mm f/5.6 Lens
- Front Lens Cap
- Rear Lens Cap
- Limited 1-Year Warranty
