Excerpt: A couple of upcoming lenses that I’m looking forward to trying out are the Sigma 19mm and 30mm f/2.8 models for NEX and Micro Four Thirds cameras. I’m particularly
Excerpt: Price: $225 Amazing value THE LOW-DOWN This lens is available in either a micro four thirds mount for Olympus and Panasonic cameras or an E mount for the Sony NEX range.
Excerpt: In January 2012 the Sigma company presented two new lenses designed for mirrorless cameras - the Sigma 19 mm f/2.8 EX DN and the Sigma 30 mm f/2.8 EX DN.
Cons: significant vignetting on the APS-C sensor,, noticeable coma,, spherical aberration not corrected properly,, work against bright light could have been better.
Summary: The Sigma 19 mm EX DN is a lens that is comfortable in the hand, solidly finished and that focuses quickly and quietly.
Pros: High resolution in the center, Solidly built and beautifully finished, Free pouch and lens hood, low priced
Cons: No built-in image stabilization, Reasonable performance in terms of distortion and chromatic aberration, Resolution in the corners is less than in the center
Summary: Z drugiej jednak strony za niewygórowaną cenę dostajemy szerokokątny obiektyw z serii EX, który daje nam ostry obraz w prawie całym zakresie przysłon i w znacznej
Pros: zwarta i dość solidna obudowa,, bardzo dobra jakość obrazu w centrum kadru,, przyzwoita jakość obrazu na brzegu matrycy Mikro 4/3,, dobrze korygowana aberracja chromat...
Cons: spore winietowanie na matrycy APS-C,, zauważalna koma,, niezbyt dobrze korygowana aberracja sferyczna,, praca pod ostre światło mogłaby być lepsza.