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

differences

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

Is a prime lens

Yes

Prime lenses have a single focal length, they are typically sharper and have wider apertures

Significantly more magnification

1:1 (1x)

1:2 (0.5x)

Take macro shots with subjects 2x larger in your photo

Significantly narrower aperture

f/32

f/22

At its narrowest, the SP 90mm f/2.8 Di Macro Pentax-k goes 1.1 f-stops narrower

Wider aperture

f/2.8

f/4

At its widest, the SP 90mm f/2.8 Di Macro Pentax-k captures slightly more light, 1 f-stop

Slightly shorter

97 mm

117 mm

Around 20% shorter

Learn more about
the Tamron SP 90mm f/2.8 Di Macro Pentax-k

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

Significantly better telephoto

300 mm

90 mm

Around 3.5x more reach, less perspective distortion

More zoom

4.3x

Around 4.5x more zoom, giving you more flexibility for photos

Slightly better wide angle

70 mm

90 mm

More than 20% better wide angle

Slightly cheaper

$164.95

$459.95

The best price we've seen is $295 cheaper (2.8x less)

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

similarities

Compared to lenses

Common Strengths

Common Weaknesses

Great zoom

SP 90mm f/2.8 Di Macro Pentax-k:	1:1 (1x)
70-300mm f/4-5.6 Di LD Macro Pentax-k:	1:2 (0.5x)

	No silent focus motor
	Louder and slower

Compared to macro 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

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

Sports lens

$729

Has a fixed aperture

Has worse macro

Is longer

Compare the 70-200mm f/2.8 Di LD Macro Pentax-k vs the SP 90mm f/2.8 Di Macro Pentax-k

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

Sigma 105mm f/2.8 EX DG Macro Pentax-k

Macro lens

$479

Slightly better telephoto

Slightly worse wide angle

Compare the 105mm f/2.8 EX DG Macro Pentax-k vs the SP 90mm f/2.8 Di Macro Pentax-k

Olympus Zuiko 35mm f/3.5 Macro ED

Macro lens

$229

Better wide angle

Shorter

Significantly wider aperture

Narrower aperture

Compare the Zuiko 35mm f/3.5 Macro ED vs the SP 90mm f/2.8 Di Macro Pentax-k

Pentax SMC DA 35mm f/2.8 Macro

Macro lens

$697

Shorter

Better wide angle

Significantly wider aperture

Worse telephoto

Compare the SMC DA 35mm f/2.8 Macro vs the SP 90mm f/2.8 Di Macro Pentax-k

Sigma 50mm f/1.4 EX DG HSM Pentax-k

Low light lens

$499

Has a silent focus motor

Significantly wider aperture

Much less magnification

Much wider aperture

Compare the 50mm f/1.4 EX DG HSM Pentax-k vs the SP 90mm f/2.8 Di Macro Pentax-k

Pentax SMC DA FA 100mm f/2.8 WR Macro

Macro lens

$847

Slightly more expensive

Compare the SMC DA FA 100mm f/2.8 WR Macro vs the SP 90mm f/2.8 Di 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

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

Sigma 70-300mm f/4-5.6 DG Macro Canon-ef

Macro lens

$144

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

Sigma 18-250mm f/3.5-6.3 DC OS HSM Nikon-f

Travel lens

$329

Much more zoom

Has a silent focus motor

Less magnification

Worse telephoto

Compare the 18-250mm f/3.5-6.3 DC OS HSM Nikon-f vs the 70-300mm f/4-5.6 Di LD Macro Pentax-k

Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k

Travel lens

$479

Much more zoom

Has a silent focus motor

Less magnification

Worse telephoto

Compare the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k vs the 70-300mm f/4-5.6 Di LD Macro Pentax-k

discussion Which do you think is better?

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

differences

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

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