Review Lens: Sony DT 50mm F1.8 SAM

Lens Overview - Sony DT 50mm F1.8

Elevate your portraiture with this lightweight Sony DT 50mm f/1.8 SAM Lens for APS-C A-mount cameras. It offers a 75mm equivalent focal length which combines with the fast f/1.8 aperture so photographers can more easily create flattering images with shallow depth of field. Also, it incorporates a Smooth Autofocus Motor (SAM) for fast, quiet focusing performance as well as a minimum focus distance of 13.4". Additionally, it has a seven-blade circular diaphragm that ensures smooth bokeh.

Designed for APS-C format cameras, this 50mm lens will provide a short telephoto 75mm equivalent focal length that is well suited to portraits.
A fast maximum aperture of f/1.8 allows users to work in less-than-ideal lighting conditions and create images with a shallow depth of field.
By incorporating a Smooth Autofocus Motor (SAM) unit into the lens itself to drive the focusing element group, this lens is able to deliver smoother, quieter, and faster performance than coupled systems. Also, it offers a minimum focus distance of 13.4".
Rounded seven-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.
UPC: 027242750883

Sony DT 50mm F1.8 Latest Price



Focal Length50mm (35mm Equivalent Focal Length: 75mm)
Maximum Aperturef/1.8
Minimum Aperturef/22
Lens MountSony A
Format CompatibilityAPS-C
Angle of View32°
Minimum Focus Distance13.39" / 34 cm
Maximum Magnification0.2x
Optical Design6 Elements in 5 Groups
Diaphragm Blades7, Rounded
Focus TypeAutofocus
Image StabilizationNone
Filter Size49 mm (Front)
Dimensions (ø x L)2.76 x 1.77" / 70 x 45 mm
Weight6 oz / 170 g

Photos Example - Sony DT 50mm F1.8

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Lens Technical

Sony DT 50mm F1.8 SAMYongnuo YN 50mm F1.8 II CanonSigma 135mm F1.8 DG HSM A
Name Sony DT 50mm F1.8 SAMYongnuo YN 50mm F1.8 II CanonSigma 135mm F1.8 DG HSM A Sony FE
Max Aperture At Min Focal f/1.8f/1.8f/1.8
Year 200920182018
Mount Type Sony Alpha DTCanon EFSony FE
Lens Type Lens MediumLens MediumLens Telephoto
Auto Focus NoNoNo
Price $150$90$1400
Lens Zoom PrimePrimePrime
Lens Range 5050135
Global 23.4967
Effective Mega Pixel 22.094
Distorsion 0.249
Vignetting -1.19536
Tstop 1.96645
Ac 5.36265
Vignetting Ranking 8724
Tstop Ranking 1890
Ac Ranking 2358
Pixel Depth 24.3
Price Sensor 1200
Sensor Raw 24.24
Sensor Format Sensor Apsc
Type SemiProDSLR
Zoom Factor 111
Weight 1lb1lb1lb
Macro NoNoNo
Launch Date May. 2009May. 2018Aug. 2018
Brand SonyYongnuoSigma


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