differences

Reasons to consider the Leica 21mm Elmar-M

Has a silent focus motor Generic motor vs None
Help
Almost the same
Auto focus Yes vs No
Help
Wider aperture f/3.4 vs f/3.8
Help
At its widest, the 21mm Elmar-M captures marginally more light (0.3 f-stops)
Slightly cheaper $2,635.60 vs $2,860.00
Help
The best price we've seen is $224 cheaper (around 10% less)
Leica 21mm Elmar-M Learn more about
the Leica 21mm Elmar-M

Reasons to consider the Leica 18mm f/3.8 Elmar-M

LensHero is not aware of any important advantages of the Leica 18mm f/3.8 Elmar-M vs the Leica 21mm Elmar-M.
Leica 18mm f/3.8 Elmar-M Learn more about
the Leica 18mm f/3.8 Elmar-M

similarities

Compared to lenses

Common Strengths Common Weaknesses
Prime lens Fixed focal length prime lenses Help
Typically very sharp
Lowest price Very expensive Help
21mm Elmar-M$2,635.60
18mm f/3.8 Elmar-M$2,860.00
Max focal length Poor telephoto Help
21mm Elmar-M21 mm
18mm f/3.8 Elmar-M18 mm
Zoom range Poor zoom Help
1x

Compared to wide angle lenses

Common Strengths Common Weaknesses

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

Image stabilization No image stabilization Help
Risk of blur

competitors

Shared Competitors

Advantages

Disadvantages

Leica Summilux 21mm f/1.4

Leica Summilux 21mm f/1.4

Low light lens

$6,732

Aperture Has a wider aperture
Lowest price Is significantly more expensive
Diameter Has a larger diameter
Zeiss 21mm f/2.8 ZM Leica-m

Zeiss 21mm f/2.8 ZM Leica-m

Wide angle lens

$1,425 - $1,428

Lowest price Is slightly less expensive
Aperture Has a wider aperture
Zeiss 35mm f/2.8 C Biogon T* ZM Leica-m

Zeiss 35mm f/2.8 C Biogon T* ZM Leica-m

Lens

$729 - $860

Lowest price Is slightly less expensive
Aperture Has a wider aperture
Sony 24mm f/1.8 E-Mount Carl Zeiss Sonnar

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

Low light lens

$16 - $1,098

Lowest price Is slightly less expensive
Aperture Has a wider aperture
Zeiss 21mm f/4.5 C Biogon T* ZM Leica-m

Zeiss 21mm f/4.5 C Biogon T* ZM Leica-m

Wide angle lens

$1,200 - $1,201

Lowest price Is slightly less expensive
Wide maximum Has a higher max f/stop
Aperture Has a narrower aperture
Leica Summilux 24mm f/1.4

Leica Summilux 24mm f/1.4

Low light lens

$6,644

Aperture Has a wider aperture
Lowest price Is significantly more expensive
Zeiss Distagon 18mm f/4 T* ZM Leica-m

Zeiss Distagon 18mm f/4 T* ZM Leica-m

Wide angle lens

$1,400 - $1,428

Lowest price Is slightly less expensive
Wide maximum Has a higher max f/stop
Aperture Has a narrower aperture
Length Is longer

Leica 21mm Elmar-M Competitors

Advantages

Disadvantages

Pentax SMC DA 40mm f/2.8 XS

Pentax SMC DA 40mm f/2.8 XS

Lens

$227

Lowest price Cheaper
Aperture Wider aperture
Min focal length Slightly worse wide angle
Samyang 16mm f/2 ED AS UMC CS Pentax-k

Samyang 16mm f/2 ED AS UMC CS Pentax-k

Low light lens

$350

Aperture Significantly wider aperture
Lowest price Cheaper
Weight Slightly heavier

Leica 18mm f/3.8 Elmar-M Competitors

Advantages

Disadvantages

Sigma 105mm f/2.8 EX DG OS Macro Sony-alpha

Sigma 105mm f/2.8 EX DG OS Macro Sony-alpha

Macro lens

$669 - $769

Focus motor Has a silent focus motor
Auto focus Auto focus
Min focal length Worse wide angle
Weight Heavier
Zeiss 85mm f/4 Tele-Tessar T* ZM Leica-m

Zeiss 85mm f/4 Tele-Tessar T* ZM Leica-m

Portrait lens

$940 - $4,211

Wide maximum Significantly narrower aperture
Diameter Smaller diameter
Length Much longer
Min focal length Worse wide angle

discussion Which do you think is better?

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