Camera and Lens News and Reviews for the Week of Aug 3

Cameras

Sigma dp2 Quattro

New Gear: Pentax Q-S1 Is the Smallest Interchangeable-Lens Digital Camera
Pentax Unveils Retro-Style Q-S1 Mini Mirrorless Camera and 28-45mm 645 Medium-Format Lens
Pentax primes Q-S1 for global launch 
Pentax Q-S1 takes the Q-series back to basics with a brand-new body
Ricoh expands Q series with Pentax Q-S1
New Pentax Q-S1 Comes With An Insane 40 Color Variations
Pentax’s New Announcements: A Camera With Looks to Kill And A Wide-Angle Lens

Nikon D810 Review

The Sigma dp2 Quattro Review: New Camera, New Sensor, New Heights


Lenses

Ricoh officially announces weather-sealed, ultra-wide zoom for Pentax medium-format cameras
Ricoh adds HD Pentax-DA645 28-45mm F4.5ED AW SR to medium format lens lineup

Sigma 24-105mm f/4 DG OS HSM | A review


Other

Fix the Color in Your Photos and Videos with Datacolor’s New SpyderCHECKR 24 Camera Calibrator
New Gear: Datacolor SpyderCHECKR 24 For Nailing Your White Balance

PocketWizard Updates TTL Compatibility For All Current Canon and Nikon DSLRs
PocketWizard Adds More TTL Support: Nikon D810, Canon 1D X and Host of Other Canon and Nikon DSLRs

New ePhoto R-640 LED Video 18 Inch Ring Light