Sigma dp3 Quattro
Get Sigma dp Quattro at B&H Photo. I am a fan of the Sigma DP Merrill line which as this was written is 22% off on Sigma DP Merrill.
See also the review of the Sigma dp2 Quattro and review of the Sigma dp0 Quattro.
The Sigma dp3 Quattro is the longest focal length range of the Sigma dp Quattro line. Its 50mm f/2.8 lens is equivalent to a 75mm f/4 on a full frame camera.
This scene evaluates bokeh, color across apertures, color aberrations and sharpness.
Sigma dp3 Quattro Aperture Series: Inside the Green Barn
Entire-frame images at sizes up to full resolution from f/2.8 - f/8. Also shown are the Sigma Photo Pro processing settings.
See also the Green Barn series.
f4 @ 0.8 sec, ISO 100; 2015-05-10 11:41:27[low-res image for bot]
SIGMA dp3 Quattro + unspecifiedLens @ 76.6mm equiv (50mm)