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Olympus M.Zuiko Digital ED 25mm F1.2 Pro vs Sigma 30mm F1.4 DC DN C

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Lens to replace
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Olympus 25mm F1.2 Pro

Standard Prime | Micro Four Thirds

Olympus M.Zuiko Digital ED 25mm F1.2 Pro
CHECK PRICE

BUY from B&H PHOTO
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Sigma 30mm F1.4 C

Standard Prime | Micro Four Thirds

Sigma 30mm F1.4 DC DN C
CHECK PRICE

BUY from B&H PHOTO

Olympus 25mm F1.2 Pro vs Sigma 30mm F1.4 C Comparison Overview

In this review, we will be comparing Olympus 25mm F1.2 Pro and Sigma 30mm F1.4 C, two Standard Prime lenses from Olympus and Sigma.

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.

Olympus 25mm F1.2 Pro Key Specs

  • 25mm Focal Range
  • F1.2 Max Aperture
  • Weather Sealed
  • Filter Thread: 62mm
  • Max Format: FourThirds
  • Micro Four Thirds Mount
  • Weight: 410g.
  • Diameter: 70mm
  • Length: 87mm
  • Min Focus Distance:0.19m
  • Max Magnification:0.11x

Sigma 30mm F1.4 C Key Specs

  • 30mm Focal Range
  • F1.4 Max Aperture
  • Filter Thread: 52mm
  • Max Format: APS-C / DX
  • Micro Four Thirds Mount
  • Weight: 265g.
  • Diameter: 65mm
  • Length: 73mm
  • Min Focus Distance:0.3m
  • Max Magnification:0.14x

What type of photography are the Olympus 25mm F1.2 Pro and Sigma 30mm F1.4 C lenses good for?

The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus 25mm F1.2 Pro and the Sigma 30mm F1.4 C for their suitability to various photography scenarios:

Photography Type Olympus 25mm F1.2 Pro Sigma 30mm F1.4 C
Bird/WildlifeFairFair
SportsAverageAverage
PortraitExcellentExcellent
TravelGoodGood
StreetVery GoodVery Good
WeddingExcellentExcellent
Walk AroundGoodGood
VloggingGoodGood
LandscapeGoodGood
MacroPoorPoor

Size and Weight Comparison

Size of a lens is an important deciding factor when comparing two lenses.Olympus 25mm F1.2 Pro is the longer of the two lenses at 87mm. The Sigma 30mm F1.4 C with a length of 73mm is 14mm shorter. Besides being longer, the Olympus 25mm F1.2 Pro also has a larger diameter of 70mm compared to Sigma 30mm F1.4 C's 65mm 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. Sigma 30mm F1.4 C weighs 265g, 35% (145g) lighter than the Olympus 25mm F1.2 Pro's weight of 410g.


Below you can find the dimension and weight table of the 'Standard Prime Lenses in Micro Four Thirds Mount for size comparison purposes.

Standard Prime Lenses in Micro Four Thirds Mount for Size Comparison
Model Length Diameter Weight Street Price
Panasonic Lumix G 25mm F1.7 ASPH Lens Panasonic Lumix G 25mm F1.7 ASPH
52mm
61mm 125g Amazon B&H Photo
Panasonic Leica Summilux DG 25mm F1.4 Lens Panasonic Leica 25mm F1.4
55mm
63mm 200g Amazon B&H Photo
Olympus M.Zuiko Digital 25mm F1.8 Lens Olympus M 25mm F1.8
41mm
56mm 136g Amazon B&H Photo
Sigma 56mm F1.4 DC DN C Lens Sigma 56mm F1.4 DC DN C
60mm
67mm 280g Amazon B&H Photo
Panasonic Lumix G 42.5mm F1.7 ASPH Power OIS Lens Panasonic 42.5mm F1.7 OIS
50mm
55mm 130g Amazon B&H Photo
OM System M.Zuiko Digital ED 20mm F1.4 Pro Lens OM ED 20mm F1.4 Pro
62mm
63mm 247g Amazon B&H Photo
7artisans 25mm F1.8 Lens 7artisans 25mm F1.8
32mm
51mm 143g Amazon B&H Photo
Lensbaby Velvet 56 Lens Lensbaby Velvet 56
86mm
72mm 400g Amazon B&H Photo

Lens Mounts

Both Olympus 25mm F1.2 Pro and Sigma 30mm F1.4 C has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-5, Panasonic GH6 and OM System OM-1.

Sigma 30mm F1.4 C is also available in Sony E and Fujifilm X mounts.

Focal Range

Olympus 25mm F1.2 Pro is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera. Sigma 30mm F1.4 C is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 45mm when used on a APS-C / DX format camera.

Reasons to choose Olympus M.Zuiko Digital ED 25mm F1.2 Pro over Sigma 30mm F1.4 DC DN C

Focal Length - Wide 25mm vs 30mm 5mm Wider coverage
Max Aperture - Wide 1.2 vs 1.4 Wider aperture at wide end
Max Aperture - Tele 1.2 vs 1.4 Wider aperture at tele end
Distance Scale Yes vs No Distance Scale to assist focusing
Depth-of-Field Scale Yes vs No Depth of Field scale to assist focusing
Weather Sealing Yes vs No safer to use under rain and dust
Minimum Focus Distance 0.19m vs 0.3m can focus closer to the subject

Reasons to choose Sigma 30mm F1.4 DC DN C over Olympus M.Zuiko Digital ED 25mm F1.2 Pro

Focal Length - Tele 30mm vs 25mm 5mm more Tele coverage
Max Sensor Coverage APS-C / DX vs FourThirds covers larger sensors
Weight 265g vs 410g 145g lighter
Diameter 65mm vs 70mm 5mm smaller in diameter
Length 73mm vs 87mm 14mm shorter
Filter Thread 52mm vs 62mm Smaller filters are cheaper and easier to find
Max Magnification 0.14x vs 0.11x higher magnification better for close-up shots

Common Strengths of Olympus M.Zuiko Digital ED 25mm F1.2 Pro and Sigma 30mm F1.4 DC DN C
Internal Focusing Yes vs Yes Length of the lens doesn't change during focusing
Common Weaknesses of Olympus M.Zuiko Digital ED 25mm F1.2 Pro and Sigma 30mm F1.4 DC DN C
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.

Olympus 25mm F1.2 Pro vs Sigma 30mm F1.4 C Specs Table

Detailed comparison of specifications
General
Brand Olympus Sigma
Lens Type Prime Prime
Price CHECK PRICE CHECK PRICE
Lens Type Standard Prime Standard Prime
Lens Mount Micro Four Thirds Micro Four Thirds
Max Format FourThirds APS-C / DX
Focal Range 25mm 30mm
Image Stabilization No
Colour Black Black
Zoom Method No Zoom No Zoom
Power Zoom No No
Zoom Lock No No
Zoom Ratio 1.0X 1.0X
Aperture
Max Aperture F1.2 F1.4
Min Aperture F16 F16.0
Aperture Ring No No
Diaphragm Blades 9 9
Optics
Optical Elements 19 9
Optical Groups 14 7
Focusing
Min Focus Distance 0.19m 0.3m
Max Magnification 0.11X 0.14X
Autofocus Yes Yes
AF Motor Type Micromotor Stepper motor
Full Time Manual Yes No
Focus Method Internal Internal
Distance Scale Yes No
DoF Scale Yes No
Distance Scale Yes No
Focus Distance Limiter Unknown Unknown
Physical Specs
Weight 410g 265g
Diameter 70mm 65mm
Length 87mm 73mm
Materials Unknown Unknown
Weather Sealing Yes No
Filter Thread 62mm 52mm
Filter Notes - -
Hood Supplied Yes No
Hood Code LH-66B Unknown
Tripod Collar No No
Optional Accessories - -
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