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Pentax smc P-FA 50mm F1.4 |
| Street price |
$500 |
$325 |
$290 |
$200 |
| Maximum format size |
35mm full frame |
35mm full frame |
35mm full frame |
35mm full frame |
| Focal length |
50mm |
50mm |
50mm |
50mm |
35mm equivalent focal length
(APS-C) |
• 75mm (1.5x)
• 80mm (1.6x)
• 85mm (1.7x) |
80mm |
75mm
|
75mm |
| Diagonal Angle of view (FF) |
47º
|
47º |
47º |
47º |
| Diagonal Angle of view (APS-C) |
31º
|
31º |
31º |
31º |
| Maximum aperture |
F1.4 |
F1.4 |
F1.4 |
F1.4 |
| Minimum aperture |
F16 |
F22 |
F16 |
F22 |
| Lens Construction |
• 8 elements/6 groups
• 1 aspherical element |
• 7 elements/6 groups
|
• 7 elements/6 groups
|
• 7 elements/6 groups
|
| Number of diaphragm blades |
9, rounded |
8 |
7 |
8 |
| Minimum focus |
0.45m |
0.45m |
0.45m |
0.45m |
| Maximum magnification |
0.14x
|
0.15x |
0.15x |
0.15x |
| AF motor type |
• Ring-type ultrasonic
• Full-time manual focus |
• Micro-type ultrasonic
• Full-time manual focus |
• 'Screw drive' from camera body |
• 'Screw drive' from camera body |
| Focus method |
Unit, internal to barrel |
Unit |
Unit |
Unit |
| Image stabilization |
• None
|
• None |
• None |
• None |
| Filter thread |
• 77mm
• Does not rotate on focus |
• 58mm
• Does not rotate on focus |
• 52mm
• Does not rotate on focus |
• 49mm
• Does not rotate on focus |
| Supplied accessories |
Front and rear caps
Hood
Soft Case |
Front and rear caps
|
Front and rear caps
|
Front and rear caps
|
| Weight |
505 g (17.8 oz) |
290g (10.2 oz) |
230g (8.1 oz) |
220g (7.8 oz) |
| Dimensions |
84.5mm diameter x 68.2mm length
(3.3 x 2.7 in) |
73.8mm diameter x 50.5mm length
(2.9 x 2.0 in) |
64.5mm diameter x 42.5mm length
(2.5 x 1.7 in) |
63.5mm diameter x 38mm length
(2.5 x 1.5 in) |
| Lens Mount |
Canon, Nikon, Pentax, Sigma, Sony |
Canon EF only |
Nikon F only |
Pentax K only |