Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM vs Tokina AT-X 240 24-40mm f/2.8

Both are Pentax K zoom lenses. Here is what actually differs.

Pentax · 2007

smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM

f/2.8

Check price Full specs

Tokina

AT-X 240 24-40mm f/2.8

f/2.8520 gMF

Full specs

Pick the Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM if

You want a wider view: 16mm vs 24mm at the wide end
You need more reach: 50mm vs 40mm at the long end

Pick the Tokina AT-X 240 24-40mm f/2.8 if

You shoot full frame: the Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM is made for APS-C

Spec differences

12 differences

Specifications that differ between the Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM and the Tokina AT-X 240 24-40mm f/2.8
	Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM	Tokina AT-X 240 24-40mm f/2.8
Brand	Pentax	Tokina
Format	APS-C	Full frame
Focal length	16-50mm	24-40mm
Weight	not listed	520 g
Length	not listed	78 mm
Diameter	not listed	76 mm
Filter thread	not listed	72 mm
Min focus distance	not listed	0.4 m
Aperture blades	not listed	7
Optical design	not listed	17 elements / 13 groups
Autofocus motor	not listed	Manual focus
Released	2007	not listed

4 identical specs hidden: mount, type, max aperture, image stabilization. Show all

Mount: Pentax K both
Type: Zoom both
Max aperture: f/2.8 both
Image stabilization: No both

Our notes

Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM

A 16-50mm f/2.8 fast standard zoom lens, the Pentax smc Pentax-DA* 16-50mm f/2.8 ED AL IF SDM is designed for Pentax K mount bodies, with extra-low dispersion glass. A premium weather-resistant "Star" series lens for Pentax K-mount cameras.

Our notes