Compare lenses

Pentax HD DA 15mm f/4 ED AL Limited vs Pentax smc DA 14mm f/2.8 ED [IF]

The Pentax HD DA 15mm f/4 ED AL Limited and the Pentax smc DA 14mm f/2.8 ED [IF] side by side, computed from this guide's catalogue.

Which to pick

Pick the Pentax smc DA 14mm f/2.8 ED [IF] if you want a brighter f/2.8 (1.0 stops more light), for dim light and softer backgrounds. On these specs the Pentax HD DA 15mm f/4 ED AL Limited has no clear advantage: choose it if the price, the handling or a lens you own decides it.

Still torn? Ask the guide about the Pentax HD DA 15mm f/4 ED AL Limited and the Pentax smc DA 14mm f/2.8 ED [IF]

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 15mm f/4 ED AL Limited	Pentax smc DA 14mm f/2.8 ED [IF]
Maker	Pentax	Pentax
Focal length	15mm (prime)	14mm (prime)
Full-frame equivalent	22mm on APS-C	21mm on APS-C
Maximum aperture	f/4	f/2.8brighter
Made for	APS-C	APS-C
Mounts	Pentax K	Pentax K
Stabilised	no	no
Autofocus	yes	yes
Weight	189 g	not listed
Cameras it fits	20 in this guide	20 in this guide

Focal range, in full-frame terms

Pentax HD DA 15mm f/4 ED AL Limited: 15mm on APS-C, like 22mm.

Pentax smc DA 14mm f/2.8 ED [IF]: 14mm on APS-C, like 21mm.

Aperture

Pentax HD DA 15mm f/4 ED AL Limited: f/4 wide open.

Pentax smc DA 14mm f/2.8 ED [IF]: f/2.8 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.