Pentax smc DA 50-200mm F4-5.6 ED WR vs Tamron SP AF 70-200mm F/2.8 Di LD (IF) MACRO

Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.

Pentax

smc DA 50-200mm F4-5.6 ED WR

Tamron

SP AF 70-200mm F/2.8 Di LD (IF) MACRO

Verdict at a glance

Tamron SP AF 70-200mm F/2.8 Di LD (IF) MACRO is faster by 1 stop (f/2.8 vs f/4.0), letting in more light.
Pentax smc DA 50-200mm F4-5.6 ED WR goes wider (50mm vs 70mm).

Specification comparison
Spec	smc DA 50-200mm F4-5.6 ED WR	SP AF 70-200mm F/2.8 Di LD (IF) MACRO
Brand	Pentax	Tamron
Mount	Pentax K	Pentax K
Type	Zoom	Telephoto Zoom
Focal length	50-200mm (wider)	70-200mm
Max aperture	f/4.0	f/2.8 (faster)
Format	aps-c	n/a
Weight g	285	n/a
Filter mm	49	77
Length mm	80.0	n/a
Diameter mm	69.0	n/a
Min focus m	1.1	0.95 (closer focusing)

Pentax smc DA 50-200mm F4-5.6 ED WR

A compact weather-resistant telephoto zoom for Pentax APS-C bodies, weighing about 285 g. It focuses as close as 1.1 m.

Pros

Light at about 285 g
Weather resistant
Compact
Close focus 1.1 m

Cons

Slow aperture
APS-C only
Less reach than 55-300

Tamron SP AF 70-200mm F/2.8 Di LD (IF) MACRO

An older f/2.8 telephoto zoom for Pentax K-mount cameras with a 77mm filter size. It has no stabilization of its own, but benefits from in-body shake reduction.

Pros

Constant f/2.8
Pentax in-body stabilization works with it
77mm filters
Macro mode

Cons

Heavier than modern f/4 zooms
Slower, noisier autofocus
Minimum focus 0.95 m

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