vs

differences

Reasons to consider the Pentax -DA 15mm f/4 ED AL

LensHero is not aware of any important advantages of the Pentax -DA 15mm f/4 ED AL vs the Pentax DA 21mm f/3.2 AL.
Pentax SMC -DA 15mm f/4 ED AL Learn more about
the Pentax -DA 15mm f/4 ED AL

Reasons to consider the Pentax DA 21mm f/3.2 AL

Wider aperture f/3.2 vs f/4
Help
At its widest, the DA 21mm f/3.2 AL captures marginally more light, 0.6 f-stops
Slightly shorter 25 mm vs 40 mm
Help
Around 40% shorter
Pentax SMC  DA 21mm f/3.2 AL Learn more about
the Pentax DA 21mm f/3.2 AL

similarities

Compared to lenses

Common Strengths Common Weaknesses
Prime lens Fixed focal length prime lenses Help
Typically very sharp
Length Short Help
-DA 15mm f/4 ED AL:40 mm
DA 21mm f/3.2 AL:25 mm
Max focal length Poor telephoto Help
-DA 15mm f/4 ED AL:15 mm
DA 21mm f/3.2 AL:21 mm
Zoom range Poor zoom Help
1x
Image stabilization No image stabilization Help
Risk of blur

competitors

Shared Competitors

Advantages

Disadvantages

Pentax SMC  DA 14mm f/2.8

Pentax SMC DA 14mm f/2.8

Wide angle lens

$947

Length Is longer
Placeholder

Pentax SMC DA 50mm f/1.8 Sigma-sa

Low light lens

Aperture Has a wider aperture
Sigma 10-20mm f/3.5 EX DC HSM

Sigma 10-20mm f/3.5 EX DC HSM

Wide angle lens

$649

Prime lens Is a zoom lens
Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Pentax-k

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Pentax-k

Wide angle lens

Aperture Has a narrower aperture
Prime lens Is a zoom lens
Samyang 16mm f/2 Samsung-nx

Samyang 16mm f/2 Samsung-nx

Low light lens

$325 - $399

Aperture Has a wider aperture
Pentax SMC  DA 18-135mm f/3.5-5.6 ED AL DC WR

Pentax SMC DA 18-135mm f/3.5-5.6 ED AL DC WR

Travel lens

$372 - $497

Max focal length Has a slightly shorter telephoto lens
Wide maximum Has a higher max f/stop
Length Is longer
Prime lens Is a zoom lens
Sigma 8-16mm f/4.5-5.6 DC HSM Pentax-k

Sigma 8-16mm f/4.5-5.6 DC HSM Pentax-k

Wide angle lens

Aperture Has a narrower aperture
Prime lens Is a zoom lens

Pentax SMC -DA 15mm f/4 ED AL Competitors

Advantages

Disadvantages

Rokinon 14mm f/2.8 IF ED UMC Canon-ef

Rokinon 14mm f/2.8 IF ED UMC Canon-ef

Wide angle lens

$329 - $349

Aperture Wider aperture
Auto focus Auto focus
Weight Slightly heavier
Zeiss 21mm f/2.8 ZM Leica-m

Zeiss 21mm f/2.8 ZM Leica-m

Wide angle lens

$1,420 - $1,428

Aperture Wider aperture
Auto focus Auto focus
Magnification Slightly less magnification
Samyang 16mm f/2 ULT-WD ANGL LNS Samsung-nx

Samyang 16mm f/2 ULT-WD ANGL LNS Samsung-nx

Low light lens

Aperture Significantly wider aperture
Sigma 18-35mm f/1.8 DC HSM Sony-alpha

Sigma 18-35mm f/1.8 DC HSM Sony-alpha

Low light lens

$799

Aperture Significantly wider aperture
Zoom range More zoom
Prime lens Is a zoom lens
Weight Heavier

Pentax SMC DA 21mm f/3.2 AL Competitors

Advantages

Disadvantages

Pentax SMC  DA 35mm f/2.8 Macro

Pentax SMC DA 35mm f/2.8 Macro

Macro lens

Magnification More magnification
Aperture Wider aperture
Length Slightly longer
Min focal length Slightly worse wide angle
Fujifilm 35mm f/1.4 XF R

Fujifilm 35mm f/1.4 XF R

Low light lens

Aperture Significantly wider aperture
Min focal length Slightly worse wide angle
Leica Elmarit 24mm f/2.8 M

Leica Elmarit 24mm f/2.8 M

Wide angle lens

Aperture Wider aperture
Focus motor Doesn't have a silent focus motor
Auto focus Auto focus
Sigma 20mm f/1.8 EX DG DF RF

Sigma 20mm f/1.8 EX DG DF RF

Low light lens

$629

Aperture Wider aperture
Magnification Slightly more magnification
Weight Heavier
Pentax SMC  FA 31mm f/1.8

Pentax SMC FA 31mm f/1.8

Low light lens

$1,297

Aperture Wider aperture
Length Longer
Lowest price Slightly more expensive

discussion Which do you think is better?

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