Sigma
30mm f/1.4 EX DC HSM Four-thirds
 vs
Pentax SMC
FA 31mm f/1.8

vs

differences

Reasons to consider the Sigma 30mm f/1.4 EX DC HSM Four-thirds
Has a silent focus motor Sigma HSM vs None
Help
 Focuses quickly and silently
Wider aperture f/1.4 vs f/1.8
Help
 At its widest, the 30mm f/1.4 EX DC HSM Four-thirds captures much more light, 0.7 f-stops
Cheaper $439.00 vs $1,296.95
Help
 The best price we've seen is $858 cheaper (3x less)
Slightly shorter 59 mm vs 69 mm
Help
 More than 10% shorter
Sigma 30mm f/1.4 EX DC HSM Four-thirds Learn more about
the Sigma 30mm f/1.4 EX DC HSM Four-thirds

Reasons to consider the Pentax FA 31mm f/1.8
Narrower aperture f/22 vs f/16
Help
 At its narrowest, the FA 31mm f/1.8 goes 0.9 f-stops narrower
Slightly more magnification 1:6.2 (0.2x) vs 1:10 (0.1x)
Help
 Take macro shots with subjects 60% larger in your photo
Pentax SMC FA 31mm f/1.8 Learn more about
the Pentax FA 31mm f/1.8

similarities

Compared to lenses

Common Strengths Common Weaknesses
Aperture Wide aperture Help
30mm f/1.4 EX DC HSM Four-thirds:f/1.4
FA 31mm f/1.8:f/1.8
Prime lens Fixed focal length prime lenses Help
Typically very sharp
Length Short Help
30mm f/1.4 EX DC HSM Four-thirds:59 mm
FA 31mm f/1.8:69 mm
Max focal length Poor telephoto Help
30mm f/1.4 EX DC HSM Four-thirds:30 mm
FA 31mm f/1.8:31 mm
Zoom range Poor zoom Help
1x
Magnification Poor magnification Help
30mm f/1.4 EX DC HSM Four-thirds:1:10 (0.1x)
FA 31mm f/1.8:1:6.2 (0.2x)

Compared to low light lenses

Common Strengths Common Weaknesses
Auto focus Auto focus Help
Easier to use

LensHero is not aware of any interesting weaknesses shared by these two products.

competitors

Shared Competitors

Advantages

Disadvantages
Sony 24mm f/1.8 E-Mount Carl Zeiss Sonnar

Sony 24mm f/1.8 E-Mount Carl Zeiss Sonnar

Low light lens

$1,098
Compare the 24mm f/1.8 E-Mount Carl Zeiss Sonnar vs the 30mm f/1.4 EX DC HSM Four-thirds
Compare the 24mm f/1.8 E-Mount Carl Zeiss Sonnar vs the SMC FA 31mm f/1.8
Olympus M.Zuiko 17mm f/2.8

Olympus M.Zuiko 17mm f/2.8

Lens

$299
Aperture Has a narrower aperture
Compare the M.Zuiko 17mm f/2.8 vs the 30mm f/1.4 EX DC HSM Four-thirds
Compare the M.Zuiko 17mm f/2.8 vs the SMC FA 31mm f/1.8

Sigma 30mm f/1.4 EX DC HSM Four-thirds Competitors

Advantages

Disadvantages
Panasonic 25mm f/1.4 Leica D

Panasonic 25mm f/1.4 Leica D

Low light lens

$900
Focus motor Doesn't have a silent focus motor
Lowest price Slightly more expensive
Compare the 25mm f/1.4 Leica D vs the 30mm f/1.4 EX DC HSM Four-thirds
Sony DT 35mm f/1.8 SAM

Sony DT 35mm f/1.8 SAM

Low light lens

$218
Wide maximum Narrower aperture
Weight Slightly lighter
Focus motor Doesn't have a silent focus motor
Aperture Narrower aperture
Compare the DT 35mm f/1.8 SAM vs the 30mm f/1.4 EX DC HSM Four-thirds
Samyang 24mm f/1.4 ED AS UMC Samsung-nx

Samyang 24mm f/1.4 ED AS UMC Samsung-nx

Low light lens

$675
Focus motor Doesn't have a silent focus motor
Weight Slightly heavier
Compare the 24mm f/1.4 ED AS UMC Samsung-nx vs the 30mm f/1.4 EX DC HSM Four-thirds
Olympus Zuiko 25mm f/2.8 ED

Olympus Zuiko 25mm f/2.8 ED

Lens

$249
Wide maximum Narrower aperture
Length Shorter
Focus motor Doesn't have a silent focus motor
Aperture Significantly narrower aperture
Compare the Zuiko 25mm f/2.8 ED vs the 30mm f/1.4 EX DC HSM Four-thirds
Samsung 12-24MM f/4-5.6 ED

Samsung 12-24MM f/4-5.6 ED

Wide angle lens

$560
Zoom range More zoom
Min focal length Slightly better wide angle
Aperture Much narrower aperture
Focus motor Doesn't have a silent focus motor
Compare the 12-24MM f/4-5.6 ED vs the 30mm f/1.4 EX DC HSM Four-thirds

Pentax SMC FA 31mm f/1.8 Competitors

Advantages

Disadvantages
Sigma 35mm f/1.4 DG HSM A1 Pentax-k

Sigma 35mm f/1.4 DG HSM A1 Pentax-k

Low light lens

$899
Focus motor Has a silent focus motor
Aperture Wider aperture
Weight Slightly heavier
Compare the 35mm f/1.4 DG HSM A1 Pentax-k vs the SMC FA 31mm f/1.8
Sigma 30mm f/1.4 EX DC Pentax-k

Sigma 30mm f/1.4 EX DC Pentax-k

Low light lens

$439
Aperture Wider aperture
Lowest price Cheaper
Wide maximum Wider aperture
Magnification Slightly less magnification
Compare the 30mm f/1.4 EX DC Pentax-k vs the SMC FA 31mm f/1.8
Pentax SMC 35mm f/2 FA AL

Pentax SMC 35mm f/2 FA AL

Low light lens

$600
Lowest price Slightly cheaper
Length Slightly shorter
Aperture Slightly narrower aperture
Compare the SMC 35mm f/2 FA AL vs the SMC FA 31mm f/1.8
Pentax SMC DA 21mm f/3.2 AL

Pentax SMC DA 21mm f/3.2 AL

Lens

$647
Length Shorter
Lowest price Slightly cheaper
Aperture Significantly narrower aperture
Compare the SMC DA 21mm f/3.2 AL vs the SMC FA 31mm f/1.8
Zeiss Distagon 28mm f/2 T* ZK Pentax-k

Zeiss Distagon 28mm f/2 T* ZK Pentax-k

Low light lens

$1,228
Magnification Slightly more magnification
Auto focus Auto focus
Aperture Slightly narrower aperture
Compare the Distagon 28mm f/2 T* ZK Pentax-k vs the SMC FA 31mm f/1.8

discussion Which do you think is better?

Speech is free, but discussion at LensHero is moderated! Please discuss your opinion of these lenses here, and discuss feedback for LensHero at our support community.

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