Canon EF 50mm f/1.4 USM - обзор от Andy Westlake на www.dpreview.com

Canon EF 50mm f/1.4 USM - обзор от Andy Westlake на www.dpreview.com

В обзоре приводится сравнение с аналогичными линзами от Sigma, Nikon и Pentax.

Sigma, Canon, Nikon, and Pentax 50mm F1.4 lenses compared

	Sigma 50mm F1.4 EX DG HSM	Canon EF 50mm F1.4 USM	Nikon AF-Nikkor 50mm F1.4 D	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 Отмечаются достоинства и недостатки.  Подробности здесь.			Canon, Nikon, Pentax, Sigma, Sony	Canon EF only	Nikon F only	Pentax K only