Just Posted: Our hands-on preview of the Pentax MX-1. The enthusiast sector has become so vibrant that our pre-Christmas roundup included nine cameras. Not wanting to be left out of the action, Pentax-Ricoh has launched its own 12MP camera with a 1/1.7" sensor - the MX-1. As well as a slightly familiar-looking 28-112mm equivalent, F1.8-2.5 zoom lens, the MX-1 takes the unusual step of including brass top- and base-plates - meaning its classic looks should become even more pronounced as it ages.