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Leica APO-Summicron-SL 35mm F2 ASPH vs Sigma 40mm F1.4 DG HSM A

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Leica APO-Summicron-SL 35mm F2 ASPH

Wideangle Prime | Leica L

Leica APO-Summicron-SL 35mm F2 ASPH
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Sigma 40mm F1.4 DG HSM A

Standard Prime | Leica L

Sigma 40mm F1.4 DG HSM A
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Leica APO-Summicron-SL 35mm F2 ASPH vs Sigma 40mm F1.4 DG HSM A Comparison Overview

Here we are comparing two lenses with different focal types: Leica APO-Summicron-SL 35mm F2 ASPH is a Wideangle Prime lens with a 35mm focal range and a max aperture of F2 whereas Sigma 40mm F1.4 DG HSM A is a Standard Prime lens with a 40mm focal range and 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.

Leica APO-Summicron-SL 35mm F2 ASPH Key Specs

  • 35mm Focal Range
  • F2 Max Aperture
  • Weather Sealed
  • Filter Thread: 67mm
  • Max Format: 35mm FF
  • Leica L Mount
  • Weight: 720g.
  • Diameter: 73mm
  • Length: 102mm
  • Min Focus Distance:0.27m
  • Max Magnification:0.2x

Sigma 40mm F1.4 DG HSM A Key Specs

  • 40mm Focal Range
  • F1.4 Max Aperture
  • Weather Sealed
  • Filter Thread: 82mm
  • Max Format: 35mm FF
  • Leica L Mount
  • Weight: 0g.
  • Diameter: 88mm
  • Length: 131mm
  • Min Focus Distance:0.4m
  • Max Magnification:0.15x

What type of photography are the Leica APO-Summicron-SL 35mm F2 ASPH and Sigma 40mm F1.4 DG HSM A lenses good for?

The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica APO-Summicron-SL 35mm F2 ASPH and the Sigma 40mm F1.4 DG HSM A for their suitability to various photography scenarios:

Photography Type Leica APO-Summicron-SL 35mm F2 ASPH Sigma 40mm F1.4 DG HSM A
Bird/WildlifePoorFair
SportsPoorFair
PortraitAverageGood
TravelAverageAverage
StreetExcellentVery Good
WeddingAverageGood
Walk AroundAverageAverage
VloggingGoodGood
LandscapeVery GoodGood
MacroFairPoor

Size and Weight Comparison

Size of a lens is an important deciding factor when comparing two lenses.Sigma 40mm F1.4 DG HSM A is the longer of the two lenses at 131mm. The Leica APO-Summicron-SL 35mm F2 ASPH with a length of 102mm is 29mm shorter. Besides being longer, the Sigma 40mm F1.4 DG HSM A also has a larger diameter of 88mm compared to Leica APO-Summicron-SL 35mm F2 ASPH's 73mm diameter.

Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods.


Lens Mounts

Both Leica APO-Summicron-SL 35mm F2 ASPH and Sigma 40mm F1.4 DG HSM A has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Panasonic S5 II, Panasonic S5 II X and Sigma fp L.

Sigma 40mm F1.4 DG HSM A is also available in Canon EF , Nikon F (FX), Sigma SA and Sony E mounts.

Focal Range

Leica APO-Summicron-SL 35mm F2 ASPH is a prime lens with fixed focal lenght of 35mm. Sigma 40mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 40mm.

Reasons to choose Leica APO-Summicron-SL 35mm F2 ASPH over Sigma 40mm F1.4 DG HSM A

Focal Length - Wide 35mm vs 40mm 5mm Wider coverage
Diameter 73mm vs 88mm 15mm smaller in diameter
Length 102mm vs 131mm 29mm shorter
Filter Thread 67mm vs 82mm Smaller filters are cheaper and easier to find
Minimum Focus Distance 0.27m vs 0.4m can focus closer to the subject
Max Magnification 0.2x vs 0.15x higher magnification better for close-up shots

Reasons to choose Sigma 40mm F1.4 DG HSM A over Leica APO-Summicron-SL 35mm F2 ASPH

Focal Length - Tele 40mm vs 35mm 5mm more Tele coverage
Max Aperture - Wide 1.4 vs 2 Wider aperture at wide end
Max Aperture - Tele 1.4 vs 2 Wider aperture at tele end
Diaphgragm Blades 9 vs Potentially more rounded and smooth bokeh
Distance Scale Yes vs No Distance Scale to assist focusing
Weight 0g vs 720g 720g lighter

Common Strengths of Leica APO-Summicron-SL 35mm F2 ASPH and Sigma 40mm F1.4 DG HSM A
Internal Focusing Yes vs Yes Length of the lens doesn't change during focusing
Weather Sealing Yes vs Yes safer to use under rain and dust
Common Weaknesses of Leica APO-Summicron-SL 35mm F2 ASPH and Sigma 40mm F1.4 DG HSM A
Image Stabilization No vs No Reliant on in-body Image Stabilization



**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Leica APO-Summicron-SL 35mm F2 ASPH vs Sigma 40mm F1.4 DG HSM A Specs Table

Detailed comparison of specifications
General
Brand Leica Sigma
Lens Type Prime Prime
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Lens Type Wideangle Prime Standard Prime
Lens Mount Leica L Leica L
Max Format 35mm FF 35mm FF
Focal Range 35mm 40mm
Image Stabilization
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 F2 F1.4
Min Aperture F22 F16
Aperture Ring No No
Diaphragm Blades unknown 9
Optics
Optical Elements 13 16
Optical Groups 11 12
Focusing
Min Focus Distance 0.27m 0.4m
Max Magnification 0.2X 0.15X
Autofocus Yes Yes
AF Motor Type Stepper motor Ring-type ultrasonic
Full Time Manual Yes Yes
Focus Method Internal Internal
Distance Scale No Yes
DoF Scale No No
Distance Scale No Yes
Focus Distance Limiter No Unknown
Physical Specs
Weight 720g 0g
Diameter 73mm 88mm
Length 102mm 131mm
Materials Magnesium alloy Unknown
Weather Sealing Yes Yes
Filter Thread 67mm 82mm
Filter Notes - -
Hood Supplied Yes Yes
Hood Code Unknown Unknown
Tripod Collar No No
Optional Accessories - -
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