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

differences

Reasons to consider the Tamron 70-300mm f/4-5.6 Di LD Macro Pentax-k

Shorter

117 mm

224 mm

Around 50% shorter

More magnification

1:2 (0.5x)

1:5 (0.2x)

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

Lighter

435 g

1.5 kg

3.3x lighter

More zoom

4.3x

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

Cheaper

$164.95

$1,049.00

The best price we've seen is $884 cheaper (6.4x less)

Slightly better wide angle

70 mm

100 mm

30% better wide angle

Slightly smaller diameter

76 mm

91 mm

Around 20% smaller lens at the end

Learn more about
the Tamron 70-300mm f/4-5.6 Di LD 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

Tamron SP 70-300mm f/4-5.6 Di VC USD Nikon-f

Wildlife lens

$449

Has image stabilization

Compare the SP 70-300mm f/4-5.6 Di VC USD Nikon-f vs the 70-300mm f/4-5.6 Di LD Macro Pentax-k

Compare the SP 70-300mm f/4-5.6 Di VC USD Nikon-f vs the 100-300mm f/4 EX DG IF HSM Canon-ef

Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k

Macro lens

$209

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

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

Canon EF 70-300mm f/4-5.6 IS USM

Wildlife lens

$649

Has image stabilization

Compare the EF 70-300mm f/4-5.6 IS USM vs the 70-300mm f/4-5.6 Di LD Macro Pentax-k

Compare the EF 70-300mm f/4-5.6 IS USM 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 Di LD Macro Pentax-k

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

Wildlife lens

$197

Slightly better wide angle

Slightly lighter

Less magnification

Worse telephoto

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

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

Sports lens

$729

Has a consant aperture

Significantly narrower aperture

Longer

Worse telephoto

Compare the 70-200mm f/2.8 Di LD Macro Pentax-k vs the 70-300mm f/4-5.6 Di LD Macro Pentax-k

Olympus M.Zuiko 40-150mm f/4-5.6

Wildlife lens

$300

Shorter

Slightly better wide angle

Significantly less magnification

Worse telephoto

Compare the M.Zuiko 40-150mm f/4-5.6 vs the 70-300mm f/4-5.6 Di LD Macro Pentax-k

Tamron SP 90mm f/2.8 Di Macro Pentax-k

Macro lens

$460

Is a prime lens

Significantly more magnification

Significantly worse telephoto

Less zoom

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

Sigma 120-400mm f/4.5-5.6 DG OS HSM APO Canon-ef

Wildlife lens

$899

Image stabilization

Better telephoto

Has a variable aperture

Significantly wider aperture

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

Sigma 18-200mm f/3.5-6.3 II DC Nikon-f

Travel lens

$249

Much more zoom

Significantly shorter

Has a variable aperture

Doesn't have a silent focus motor

Compare the 18-200mm f/3.5-6.3 II DC Nikon-f vs the 100-300mm f/4 EX DG IF HSM Canon-ef

Nikon Nikkor 70-300mm f/4-5.6G

Wildlife lens

$150

Shorter

Lighter

Has a variable aperture

Doesn't have a silent focus motor

Compare the Nikkor 70-300mm f/4-5.6G vs the 100-300mm f/4 EX DG IF HSM Canon-ef

Nikon Nikkor AF-S DX VR 55-200mm f/4-5.6G IF-ED

Wildlife lens

$247

Image stabilization

Significantly shorter

Has a variable aperture

Significantly wider aperture

Compare the Nikkor AF-S DX VR 55-200mm f/4-5.6G IF-ED vs the 100-300mm f/4 EX DG IF HSM Canon-ef

Canon EF-S 18-55mm f/3.5-5.6 IS

Wide angle lens

$185 - $199

Image stabilization

Significantly shorter

Has a variable aperture

Doesn't have a silent focus motor

Compare the EF-S 18-55mm f/3.5-5.6 IS 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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Tamron
70-300mm f/4-5.6 Di LD Macro Pentax-k
vs
Sigma
100-300mm f/4 EX DG IF HSM Canon-ef

differences

Reasons to consider the Tamron 70-300mm f/4-5.6 Di LD Macro Pentax-k

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