Sony DT 50mm F1.8 SAM vs Sigma 50mm F1.4 DG HSM A Detailed Comparison

Sony DT 50mm F1.8 SAM vs Sigma 50mm F1.4 DG HSM A

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Sony DT 50mm F1.8 SAM

Standard Prime | Sony Alpha

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Sigma 50mm F1.4 DG HSM A

Standard Prime | Sony Alpha

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Sony DT 50mm F1.8 SAM vs Sigma 50mm F1.4 DG HSM A Comparison Overview

In this review, we will be comparing Sony DT 50mm F1.8 SAM and Sigma 50mm F1.4 DG HSM A, two Standard Prime lenses from Sony and Sigma. Both cameras have the same focal range of 50mm but different max apertures: Sony DT 50mm F1.8 SAM has a max aperture of F1.8 while the Sigma 50mm F1.4 DG HSM A has a max aperture of F1.4.

We will start with briefly looking and the main specs of these two lenses and in the section, we will start analyzing in more detail and list the pros and cons of each lenses.

Sony DT 50mm F1.8 SAM Key Specs

50mm Focal Range

F1.8 Max Aperture

Filter Thread: 49mm

Max Format: APS-C / DX

Sony Alpha Mount

Weight: 170g.

Diameter: 70mm

Length: 45mm

Min Focus Distance:0.34m

Max Magnification:0.2x

Sigma 50mm F1.4 DG HSM A Key Specs

50mm Focal Range

F1.4 Max Aperture

Filter Thread: 77mm

Max Format:

Sony Alpha Mount

Weight: 815g.

Diameter: 85mm

Length: 100mm

Min Focus Distance:0.4m

Max Magnification:0.18x

Reasons to choose Sony DT 50mm F1.8 SAM over Sigma 50mm F1.4 DG HSM A

Weight	170g vs 815g	645g lighter
Diameter	70mm vs 85mm	15mm smaller in diameter
Length	45mm vs 100mm	55mm shorter
Filter Thread	49mm vs 77mm	Smaller filters are cheaper and easier to find
Minimum Focus Distance	0.34m vs 0.4m	can focus closer to the subject
Max Magnification	0.2x vs 0.18x	higher magnification better for close-up shots

Reasons to choose Sigma 50mm F1.4 DG HSM A over Sony DT 50mm F1.8 SAM

Max Aperture - Wide	1.4 vs 1.8	Wider aperture at wide end
Max Aperture - Tele	1.4 vs 1.8	Wider aperture at tele end
Diaphgragm Blades	9 vs 7	Potentially more rounded and smooth bokeh
Depth-of-Field Scale	Yes vs No	Depth of Field scale to assist focusing
Max Sensor Coverage	35mm FF vs APS-C / DX	covers larger sensors

Common Strengths of Sony DT 50mm F1.8 SAM and Sigma 50mm F1.4 DG HSM A

Distance Scale	Yes vs Yes	Distance Scale to assist focusing

Common Weaknesses of Sony DT 50mm F1.8 SAM and Sigma 50mm F1.4 DG HSM A

Image Stabilization	No vs No	Reliant on in-body Image Stabilization
Weather Sealing	No vs No	not safe under rain and dust

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Sony DT 50mm F1.8 SAM vs Sigma 50mm F1.4 DG HSM A Specs Table

Detailed comparison of specifications

General	Sony DT 50mm F1.8 SAM	Sigma 50mm F1.4 DG HSM A
Brand	Sony	Sigma
Lens Type	Prime	Prime
Price	CHECK PRICE	CHECK PRICE
Lens Type	Standard Prime	Standard Prime
Lens Mount	Sony Alpha	Sony Alpha
Max Format	APS-C / DX	35mm FF
Focal Range	50mm	50mm
Image Stabilization	No	No
Colour	Black	Unknown
Zoom Method	No Zoom	No Zoom
Power Zoom	No	No
Zoom Lock	No	No
Zoom Ratio	1.0X	1.0X
Aperture
Max Aperture	F1.8	F1.4
Min Aperture	F32.0	F16.0
Aperture Ring	No	No
Diaphragm Blades	7	9
Optics
Optical Elements	6	13
Optical Groups	5	8
Special Elements	unknown	SLD glass elements, aspheric elements
Focusing
Min Focus Distance	0.34m	0.4m
Max Magnification	0.2X	0.18X
Autofocus	Yes	Yes
AF Motor Type	Micromotor	Ring-type ultrasonic
Full Time Manual	No	Yes
Focus Method	Unit	Internal
Distance Scale	Yes	Yes
DoF Scale	No	Yes
Distance Scale	Yes	Yes
Focus Distance Limiter	Unknown	Unknown
Physical Specs
Weight	170g	815g
Diameter	70mm	85mm
Length	45mm	100mm
Materials	Plastic barrel, plastic mount	Unknown
Weather Sealing	No	Unknown
Filter Thread	49mm	77mm
Filter Notes	-	-
Hood Supplied	No	Unknown
Hood Code	Unknown	Unknown
Tripod Collar	No	No
Optional Accessories	-	-
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