If you're serious about getting better image quality in your photos, the Pentax 645D Digital SLR Camera (Body Only) can move you pretty far along that road: with a format similar to the film 645 system (44 x 33mm), this camera delivers a stunning 40MP of resolution in a package not much larger than top-of-the-line DSLRs (6.1 x 4.6 x 4.7"/15.5 x 11.68 x 11.93 cm and 49 oz/1389 g).