Sony Planar T* 50mm F1.4 ZA SSM vs Sony DT 50mm F1.8 SAM

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Planar T* 50mm F1.4 ZA SSM compared with DT 50mm F1.8 SAM

	SonyPlanar T* 50mm F1.4 ZA SSM	SonyDT 50mm F1.8 SAM
Overview
Released
Released	May 2013	June 2009
Optics
Lens type
Lens type	Prime	Prime
Focal length
Focal length	50 mm	50 mm
Maximum aperture
Maximum aperture	f/1.4	f/1.8
Minimum aperture
Minimum aperture	f/22	f/22
Optical construction
Optical construction	Eight elements in five groups; two aspherical elements	Six elements in five groups
Coatings
Coatings	ZEISS T* anti-reflection coating (Photography Blog)	–
Diaphragm
Diaphragm	Nine blades; circular aperture	Seven blades; circular aperture
Angle of view
Angle of view	47° on full frame; 32° on APS-C	32° on APS-C
Mount and compatibility
Mounts
Mounts	Sony A	Sony A
Image circle
Image circle	Full frame	APS-C
Image circle detail
Image circle detail	Full-frame A-mount coverage; 75 mm equivalent field of view on APS-C	Designed for APS-C A-mount cameras; 75 mm equivalent field of view
Teleconverter support
Teleconverter support	Sony 1.4× and 2× teleconverters unsupported	Sony 1.4× and 2× teleconverters unsupported
Focus and stabilisation
Autofocus
Autofocus	Yes	Yes
Minimum focus distance
Minimum focus distance	0.45 m	0.34 m
Maximum magnification
Maximum magnification	0.14×	0.2×
Optical stabilisation
Optical stabilisation	No	–
Autofocus detail
Autofocus detail	SSM (Super Sonic wave Motor)	Built-in SAM (Smooth Autofocus Motor); direct manual focusing unsupported (OpticalLimits)
Focus distance detail
Focus distance detail	Rear focusing maintains lens length; focus ring does not rotate during autofocus; direct manual focus (DMF) supported	Focus ring rotates during autofocus and the inner barrel extends when focusing (OpticalLimits)
Magnification detail
Magnification detail	0.14× maximum reproduction ratio	0.20× maximum reproduction ratio
Stabilisation detail
Stabilisation detail	No lens optical stabilisation; compatible camera-body stabilisation	Sony describes use with A-mount camera-body stabilisation
Design
Dust and moisture resistant
Dust and moisture resistant	Yes	–
Filter diameter
Filter diameter	72 mm	49 mm
Maximum diameter
Maximum diameter	81 mm	70 mm
Length
Length	71.5 mm	45 mm
Weight
Weight	518 g	170 g (better)
Controls
Controls	Focus hold button; AF/MF switch (ePHOTOzine)	AF/MF switch (Photo Review)
Filter detail
Filter detail	72 mm non-rotating filter thread (Photography Blog)	49 mm non-rotating filter thread (OpticalLimits)
Weather resistance
Weather resistance	Dust and moisture resistant design; not an IP rating	–
Dimensions detail
Dimensions detail	81 mm maximum diameter × 71.5 mm length	70 mm maximum diameter × 45 mm length
Weight detail
Weight detail	Approximately 518 g, maker lens weight	Approximately 170 g, maker lens weight
Lens hood
Lens hood	ALC-SH126 round bayonet hood supplied	No lens hood supplied
In the box
In the box	Lens hood; front and rear caps	–
Release detail
Release detail	Sony Canada specifies May 2013 availability. Sony Japan revised its planned May launch to 26 July 2013 on 26 April.	Sony specifies 25 June 2009 availability in Japan; its US announcement describes July availability.