and modified it on a lathe to suit the Sigma lens. A short length of ribbon cable was then used to connect the lens’s PCB to the EF mount’s contacts. When carefully put back together ...

Yesterday, Adobe updated its list of bodies and lenses supported by Camera Raw – and among them are the upcoming Sigma 30mm f ...

(Most lenses have some softening in the corners at macro distances, though.) The Sigma SD1's flash throttled ... so its LCD monitor cannot be used to frame images. The images above were taken ...

(Note that threshold used by DxOMark is equivalent ... Some of the corner fall-off is from the lens itself, though. Manufacturer Specified Flash Test. The Sigma dp2 Quattro's optional EF-140S ...

Sigma's CEO Kazuto Yamaki has spoken in depth about the development of a pair of new lenses in a Youtube interview with ...

Pro Video Coalition sent contributor Alec C. Cohen to Cinegear Expo Atlanta to document some exciting industry developments.

if it should be a problem the in-camera corrections can be used. Alternatively, there are plenty of software solutions. Chromatic aberration (CA) is the lens' inability to focus on the sensor or ...

but as the lens is stopped down it soon comes under control to more reasonable levels. In terms of creativity, the obvious vignetting at 28mm and f/2.8 could also be used to advantage. Corrections ...

This Sigma lens goes more properly into telephoto territory ... of the Sony A7C II camera that I used for testing the lens. Indeed, you have to go a long way to find an E-mount or L-mount camera ...

Certifications for Six Sigma training are awarded in levels using a belt classification system similar to belt levels used in martial arts. Six Sigma is a set of quality management techniques and ...

Thought it was the 18th letter of the Greek alphabet? You would be wrong. Sigma has taken on a whole new meaning such as dominant leader, lone wolf, cool and popular. If you’re called a “sigma ...