The Online Photographer: The Pentax Q System. Pentax jumps into the pool of small system cameras, but adds a twist: just as they once responded to the half-frame format with an 110 cassette system camera, they now deliver a compact system camera. Mini chip with interchangeable optics - and according to the lineup of lenses that will be available at launch, it's a bit more geared towards a fun camera. However, the 110 Pentax was also, on the one hand, a fun camera, but on the other hand, quite serious for some purposes - because at Pentax, even the fun is well crafted. Therefore, the Q-System could well be interesting for one or the other.