differences

Reasons to consider the Tamron SP 90mm f/2.8 Di Macro Pentax K

Smaller diameter 71 mm vs 81 mm
Help
More than 10% smaller lens at the end
Slightly better wide angle 90 mm vs 100 mm
Help
10% better wide angle
Tamron SP 90mm f/2.8 Di Macro Pentax K Learn more about
the Tamron SP 90mm f/2.8 Di Macro Pentax K

Reasons to consider the Pentax DA FA 100mm f/2.8 WR Macro

Shorter 64 mm vs 97 mm
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More than 30% shorter
Pentax SMC  DA FA 100mm f/2.8 WR Macro Learn more about
the Pentax DA FA 100mm f/2.8 WR Macro

similarities

Compared to digital camera lenses

Common Strengths Common Weaknesses
Wide minimum Very wide aperture Help
f/32
Magnification Great zoom Help
1:1 (1)
Prime lens Fixed focal length prime lenses Help
Typically very sharp
Auto focus Auto focus Help
Easier to use

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

Compared to digital camera 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

Pentax SMC DA FA 100mm f/2.8 WR Macro Competitors

Pentax SMC  FA 77mm f/1.8

Pentax SMC FA 77mm f/1.8

Low light lens

$700 - $797

Aperture Wider aperture
Diameter Slightly smaller diameter
Wide minimum Significantly wider aperture
Pentax SMC  D FA 50mm f/2.8 Macro

Pentax SMC D FA 50mm f/2.8 Macro

Macro lens

$347

Diameter Smaller diameter
Min focal length Better wide angle
Max focal length Worse telephoto
Sigma 70mm f/2.8 EX DG Macro

Sigma 70mm f/2.8 EX DG Macro

Macro lens

$468

Min focal length Better wide angle
Diameter Slightly smaller diameter
Wide minimum Significantly wider aperture

Tamron SP 90mm f/2.8 Di Macro Pentax K Competitors

discussion Which do you think is better?

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