Sigma
70-200mm f/2.8 EX DG OS HSM Pentax-k
 vs
Pentax SMC
FA 77mm f/1.8

vs

differences

Reasons to consider the Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k
Has a silent focus motor Sigma HSM vs None
Help
 Focuses quickly and silently
Image stabilization Sigma OS vs None
Help
 Helps eliminate blur caused by small camera movements
Better telephoto 200 mm vs 77 mm
Help
 More than 2.5x more reach, less perspective distortion
More zoom 2.9x vs 1x
Help
 Around 3x more zoom, giving you more flexibility for photos
Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k Learn more about
the Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k

Reasons to consider the Pentax FA 77mm f/1.8
Is a prime lens Yes vs No
Help
 Prime lenses have a single focal length, they are typically sharper and have wider apertures
Wider aperture f/1.8 vs f/2.8
Help
 At its widest, the FA 77mm f/1.8 captures much more light, 1.3 f-stops
Lighter 272 g vs 1.4 kg
Help
 5.3x lighter
Slightly cheaper $1,046.95 vs $1,699.00
Help
 The best price we've seen is $652 cheaper (around 40% less)
Pentax SMC FA 77mm f/1.8 Learn more about
the Pentax FA 77mm f/1.8

similarities

Compared to lenses

Common Strengths Common Weaknesses

LensHero is not aware of any interesting strengths shared by these two products.
Magnification Poor magnification Help
70-200mm f/2.8 EX DG OS HSM Pentax-k:1:8 (0.1x)
FA 77mm f/1.8:1:7 (0.1x)

Compared to portrait lenses

Common Strengths Common Weaknesses

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

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

competitors

Shared Competitors

Advantages

Disadvantages
Pentax SMC DA 55-300mm f/4-5.8 ED

Pentax SMC DA 55-300mm f/4-5.8 ED

Wildlife lens

$397
Max focal length Has a slightly shorter telephoto lens
Magnification Has better macro
Aperture Has a narrower aperture
Length Is longer
Compare the SMC DA 55-300mm f/4-5.8 ED vs the 70-200mm f/2.8 EX DG OS HSM Pentax-k
Compare the SMC DA 55-300mm f/4-5.8 ED vs the SMC FA 77mm f/1.8

Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k Competitors

Advantages

Disadvantages
Tamron 70-200mm f/2.8 Di LD Macro Pentax-k

Tamron 70-200mm f/2.8 Di LD Macro Pentax-k

Sports lens

$729
Wide maximum Significantly narrower aperture
Magnification More magnification
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Compare the 70-200mm f/2.8 Di LD Macro Pentax-k vs the 70-200mm f/2.8 EX DG OS HSM Pentax-k
Sigma 50-200mm f/4-5.6 DC OS HSM Pentax-k

Sigma 50-200mm f/4-5.6 DC OS HSM Pentax-k

Wildlife lens

$159
Lowest price Cheaper
Zoom range More zoom
Wide maximum Much wider aperture
Fixed aperture Has a variable aperture
Compare the 50-200mm f/4-5.6 DC OS HSM Pentax-k vs the 70-200mm f/2.8 EX DG OS HSM Pentax-k
Pentax SMC 60-250mm f/4 ED DA* SDM

Pentax SMC 60-250mm f/4 ED DA* SDM

Wildlife lens

$1,397
Wide maximum Significantly narrower aperture
Zoom range More zoom
Image stabilization No image stabilization
Aperture Narrower aperture
Compare the SMC 60-250mm f/4 ED DA* SDM vs the 70-200mm f/2.8 EX DG OS HSM Pentax-k
Canon EF 135mm f/2.8 Soft Focus

Canon EF 135mm f/2.8 Soft Focus

Sports lens

$489
Prime lens Is a prime lens
Wide maximum Significantly narrower aperture
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Compare the EF 135mm f/2.8 Soft Focus vs the 70-200mm f/2.8 EX DG OS HSM Pentax-k
Tamron 70-200mm f/2.8 Di LD Macro Nikon-f

Tamron 70-200mm f/2.8 Di LD Macro Nikon-f

Sports lens

$769
Wide maximum Significantly narrower aperture
Magnification More magnification
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Compare the 70-200mm f/2.8 Di LD Macro Nikon-f vs the 70-200mm f/2.8 EX DG OS HSM Pentax-k

Pentax SMC FA 77mm f/1.8 Competitors

Advantages

Disadvantages
Pentax SMC DA 70mm f/2.4

Pentax SMC DA 70mm f/2.4

Low light lens

$697
Length Shorter
Lowest price Slightly cheaper
Aperture Narrower aperture
Diameter Slightly larger diameter
Compare the SMC DA 70mm f/2.4 vs the SMC FA 77mm f/1.8
Nikon Nikkor AF-S 85mm f/1.4G

Nikon Nikkor AF-S 85mm f/1.4G

Low light lens

$1,629
Focus motor Has a silent focus motor
Aperture Wider aperture
Weight Heavier
Lowest price Slightly more expensive
Compare the Nikkor AF-S 85mm f/1.4G vs the SMC FA 77mm f/1.8
Pentax SMC FA 43mm f/1.9

Pentax SMC FA 43mm f/1.9

Low light lens

$747
Length Shorter
Min focal length Better wide angle
Max focal length Slightly worse telephoto
Diameter Slightly larger diameter
Compare the SMC FA 43mm f/1.9 vs the SMC FA 77mm f/1.8
Sigma 85mm f/1.4 EX DG HSM Pentax-k

Sigma 85mm f/1.4 EX DG HSM Pentax-k

Sports lens

$899
Focus motor Has a silent focus motor
Aperture Wider aperture
Wide maximum Wider aperture
Magnification Slightly less magnification
Compare the 85mm f/1.4 EX DG HSM Pentax-k vs the SMC FA 77mm f/1.8
Canon EF 85mm f/1.2L II USM

Canon EF 85mm f/1.2L II USM

Low light lens

$1,999
Focus motor Has a silent focus motor
Aperture Wider aperture
Weight Heavier
Lowest price More expensive
Compare the EF 85mm f/1.2L II USM vs the SMC FA 77mm 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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