Originally posted by alpheios Because there are a lot of people that prefer using primes. The performance of modern zooms has definitely increased a lot over the last one or two decades but primes are often still superior in terms of wide aperture and sharpness. Also a lot of people are using primes because they better suit their style of photography. I find using zooms makes me kind of lazy and think less about framing and the kind of picture I want to achieve in a certain situation with a certain lens.
But I also have to say that I don't support what Gedeon is saying. It's all about resources for development. Pentax just isn't as big of a company as Nikon, Canon or Sony. There are holes in the primes lineup but they will be filled. Just give them some time.
Then there FA31, FA43, DFA50, FA50, DA*55, FA77, DFA100, DA*200, DA*300, DA560 availble as primes with half being modern and 3 being the FA limited... Qucik check on sigma, there the 15mm fisheye, the 35mm f/1.4 art or 85mm f/1.4 for primes that make the lineup stronger.
On Pentax side, there also new primes on the roadmap, arround 24, 35, 50 and 85 on the way likely half release this year, the other half next year.
Not only the gap in available prime is small missing basically a wide apperture 24mm prime, a 135mm prime optimized for portraiture (rather than the DFA100 optimized for macro) and maybe a 400mm, but there alternatives readily available in zooms if you need them or on the used market.
If you want the most extensive lens line up, you have to go Canon, not even Nikon. That's just how it is. But lenses don't take photos. Photographers do. All of this are excuses to complain. If there not what you need there today, then go for an echosystem that has it or wait the 1-2 years needed to fill the holes. We are adults, not 5 years old petulant child.