Originally posted by Trickortreat Dunno about dslm. Dont care about them at the moment. Was talking more about direct competittors of k-3 - Nikons d7xxx line and Canons x0d line. They seem to get lighter by every itreation. And even if we take a FF dslr - Nikon d750, it is lighter than K3.
Are you sure about the weight? Wikipedia has the D750 as 40 grams heavier than the K-3.
Some of those lighter bodies are a bit plasticity. Also, the SR system (added coils, magnets, bearings, and mounting plates) in a Pentax body will always make them heavier than Canikons which lack this crucial feature.
Personally, I think there is an optimal camera body weight for both balance with longer lenses and for added stability. Back in ye olden times when I shot film with an OM-4ti (which is 230 grams lighter than a K-3), i'd often bolt a collapsed tripod to the bottom of the body like an improvised steady-cam to improve the stability of the camera.