As far as build quality/sturdiness goes, the Zeiss is great despite it's reduced heft. Due to a weird concatenation of circumstances I recently took a spill on concrete while the Ikon was in my hand on a wrist strap. The camera hit the pavement hard on left bottom edge (film rewind side), leaving a decent sized scrape through the paint into the metal. My baby is wounded and scarred! But, there's no dent in the metal and even more to my relief, the viewfinder and focusing are still 100% spot on and nothing else is damaged. Very sturdy despite its lower weight (compared to a Leica). I'm very pleased!