Pentax smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF] vs Sigma 17-50mm f/2.8 EX DC OS HSM

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

Pentax

smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF]

Sigma

17-50mm f/2.8 EX DC OS HSM

Verdict at a glance

Sigma 17-50mm f/2.8 EX DC OS HSM is faster by 0.9 stops (f/2.8 vs f/3.8), letting in more light.
Sigma 17-50mm f/2.8 EX DC OS HSM goes wider (17mm vs 28mm).
Pentax smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF] reaches further (200mm vs 50mm).

Specification comparison
Spec	smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF]	17-50mm f/2.8 EX DC OS HSM
Brand	Pentax	Sigma
Mount	Pentax K	Pentax K
Type	Superzoom	Zoom
Focal length	28-200mm	17-50mm (wider)
Max aperture	f/3.8	f/2.8 (faster)
Blades	n/a	7
Format	n/a	aps-c
Groups	n/a	13
Af motor	n/a	HSM
Elements	n/a	17
Weight g	n/a	565
Filter mm	n/a	77
Length mm	n/a	91.8
Stabilized	n/a	Yes
Diameter mm	n/a	83.5
Min focus m	n/a	0.28
Max magnification	n/a	0.2

Pentax smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF]

The Pentax smc Pentax-FA 28-200mm f/3.8-5.6 AL [IF] is a superzoom lens covering 28-200mm at f/3.8-5.6 for Pentax K mount cameras. The wide-to-tele range makes it a one-lens option for travel and everyday shooting.

Sigma 17-50mm f/2.8 EX DC OS HSM

Sigma 17-50mm f/2.8 EX DC OS HSM: an APS-C fast standard zoom lens with a 17-50mm focal length and a maximum aperture of f/2.8, made for Pentax K mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. A bright standard zoom for APS-C cameras with a constant f/...

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