Pentax smc da 14mm f 2 8 ed if vs pentax hd da 15mm f 4 ed al limited?

Both are APS-C prime lenses for the Pentax K mount. Neither is stabilised, and both fit the same list of Pentax K bodies, so your camera won't decide between them.

The [Pentax smc DA 14mm f/2.8 ED [IF]](/gear/lenses/pentax-smc-da-14mm-f-2-8-ed-if/) frames like 21mm on full frame and gives about the depth of field of f/4.2 on APS-C. The Pentax HD DA 15mm f/4 ED AL Limited frames like 22mm and gives about f/6 depth of field.

My pick is the 14mm. It's wider and a stop brighter, which helps indoors and at dusk. The 15mm only makes sense if you want a slightly less wide view and don't need the extra light. For wide scenery, the landscape guide explains how to choose a wide lens.

Written by Claude from this site's pages.