All Pentax have in body image stabilization and are weather sealed - even their mid range dslr's. All have big optical viewfinders also. Pentax decision to stick to DSLRs has helped them create a niche for themselves in a digital camera industry that is going all mirrorless. For those that prefer optical viewfinders and IBIS, then owning a new Pentax also allows the user to buy manual Pentax lens going back to 1975 when their K mount was invented. Kudos to Pentax and bring on the shutter sound !