Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k vs 100-300mm f/4 EX DG IF HSM Canon-ef

differences

Reasons to consider the Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k

More magnification

1:2 (0.5x)

1:5 (0.2x)

Take macro shots with subjects around 2.5x larger in your photo

Shorter

119 mm

224 mm

Around 50% shorter

Lighter

0.6 kg

1.5 kg

2.5x lighter

More zoom

4.3x

More than 40% more zoom, giving you more flexibility for photos

Cheaper

$209.00

$1,049.00

The best price we've seen is $840 cheaper (5x less)

Slightly better wide angle

70 mm

100 mm

30% better wide angle

Slightly smaller diameter

74 mm

91 mm

Around 20% smaller lens at the end

Learn more about
the Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k

Reasons to consider the Sigma 100-300mm f/4 EX DG IF HSM Canon-ef

Has a consant aperture

Yes

Constant aperture lenses offer the same aperture at all focal lengths

Has a silent focus motor

Sigma HSM

None

Focuses quickly and silently

Significantly narrower aperture

f/32

f/22

At its narrowest, the 100-300mm f/4 EX DG IF HSM Canon-ef goes 1.1 f-stops narrower

Learn more about
the Sigma 100-300mm f/4 EX DG IF HSM Canon-ef

similarities

Compared to lenses

Common Strengths

Common Weaknesses

	Good telephoto
	300 mm

	Both are zoom lenses
	Typically not as sharp as prime lenses

	Very narrow widest aperture size
	f/4

Compared to wildlife lenses

Common Strengths

Common Weaknesses

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

	No image stabilization
	Risk of blur

competitors

Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Pentax-k

Wildlife lens

$999

Has a slightly shorter telephoto lens

Has image stabilization

Is heavier

Compare the 120-400mm f/4.5-5.6 DG APO OS HSM Pentax-k vs the 70-300mm f/4-5.6 APO DG Macro Pentax-k

Compare the 120-400mm f/4.5-5.6 DG APO OS HSM Pentax-k vs the 100-300mm f/4 EX DG IF HSM Canon-ef

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

Wildlife lens

$397

More zoom

Slightly better wide angle

Less magnification

Compare the SMC DA 55-300mm f/4-5.8 ED vs the 70-300mm f/4-5.6 APO DG Macro Pentax-k

Tamron 90mm f/2.8 SP Di Macro Nikon-f

Macro lens

$499

Is a prime lens

Significantly more magnification

Significantly worse telephoto

Less zoom

Compare the 90mm f/2.8 SP Di Macro Nikon-f vs the 70-300mm f/4-5.6 APO DG Macro Pentax-k

Pentax SMC DA 50-200mm f/4-5.6 ED WR

Wildlife lens

$197

Slightly lighter

Slightly better wide angle

Less magnification

Worse telephoto

Compare the SMC DA 50-200mm f/4-5.6 ED WR vs the 70-300mm f/4-5.6 APO DG Macro Pentax-k

Sigma 300mm f/2.8 EX DG Pentax-k

Sports lens

$2,999

Is a prime lens

Significantly narrower aperture

Much worse wide angle

Significantly heavier

Compare the 300mm f/2.8 EX DG Pentax-k vs the 70-300mm f/4-5.6 APO DG Macro Pentax-k

Slightly better wide angle

Worse telephoto

More expensive

Compare the 70-200mm f/2.8 APO G SSM vs the 100-300mm f/4 EX DG IF HSM Canon-ef

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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Sigma
70-300mm f/4-5.6 APO DG Macro Pentax-k
vs
Sigma
100-300mm f/4 EX DG IF HSM Canon-ef

differences

Reasons to consider the Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k

Reasons to consider the Sigma 100-300mm f/4 EX DG IF HSM Canon-ef