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
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Cheaper $2,400.00 vs $2,995.00
Help
The best price we've seen is $595 cheaper (around 20% less)
Wider aperture f/3.4 vs f/3.8
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At its widest, the 21mm Elmar-M captures marginally more light (0.3 f-stops)
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 digital camera lenses

Common Strengths Common Weaknesses
Prime lens Fixed focal length prime lenses Help
Typically very sharp
Lowest price Very expensive Help
21mm Elmar-M$2,400.00
18mm f/3.8 Elmar-M$2,995.00
Max focal length Poor telephoto Help
21mm Elmar-M21 mm
18mm f/3.8 Elmar-M18 mm
Wide minimum Not very narrow apertures Help
f/16

Compared to digital camera lenses

Common Strengths Common Weaknesses

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

Zoom range Poor zoom Help
1x
Image stabilization No image stabilization Help
Risk of blur

competitors

Leica 18mm f/3.8 Elmar-M Competitors

Leica Summilux 21mm f/1.4

Leica Summilux 21mm f/1.4

Low light lens

$7,395

Aperture Much wider aperture
Lowest price Much more expensive
Zeiss Distagon 18mm f/4 T* ZM Leica M

Zeiss Distagon 18mm f/4 T* ZM Leica M

Wide angle lens

$2,427

Wide minimum Narrower aperture
Lowest price Cheaper
Length Slightly longer
Zeiss Distagon  T* 15mm f/2.8 ZF.2 Nikon F

Zeiss Distagon T* 15mm f/2.8 ZF.2 Nikon F

Wide angle lens

$1,865 - $2,699

Focus motor Has a silent focus motor
Aperture Wider aperture
Diameter Significantly larger diameter

Leica 21mm Elmar-M Competitors

Sony E-Mount 16mm f/2.8

Sony E-Mount 16mm f/2.8

Wide angle lens

$248

Lowest price Significantly cheaper
Wide minimum Narrower aperture
Zeiss Distagon 18mm f/4 T* ZM Leica M

Zeiss Distagon 18mm f/4 T* ZM Leica M

Wide angle lens

$2,427

Wide minimum Narrower aperture
Focus motor Doesn't have a silent focus motor
Nikon Nikkor AF-S 35mm f/1.8G DX

Nikon Nikkor AF-S 35mm f/1.8G DX

Low light lens

$197

Lowest price Significantly cheaper
Aperture Significantly wider aperture
Min focal length Slightly worse wide angle

discussion Which do you think is better?

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