Compare lenses

Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR vs Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR

The Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR and the Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR side by side, computed from this guide's catalogue.

Which to pick

Pick the Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR if you want a wider view (from 24mm equivalent). Pick the Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR if you want more reach (to 202mm equivalent) and a lighter lens (405 g against 488 g).

Still torn? Ask the guide about the Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR and the Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR	Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR
Maker	Pentax	Pentax
Focal length	16-85mm (zoom)	18-135mm (zoom)
Full-frame equivalent	24-128mm on APS-C	27-202mm on APS-C
Maximum aperture	f/3.5-5.6	f/3.5-5.6
Made for	APS-C	APS-C
Mounts	Pentax K	Pentax K
Stabilised	no	no
Autofocus	yes	yes
Zoom range	5.3×	7.5×more range
Weight	488 g	405 glighter
Cameras it fits	20 in this guide	20 in this guide

Focal range, in full-frame terms

Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR: 16-85mm on APS-C, like 24-128mm.

Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR: 18-135mm on APS-C, like 27-202mm.

Aperture

Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR: f/3.5 wide open.

Pentax smc DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR: f/3.5 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

20 cameras in this guide take both, so either works on the same body.