ZEISS Touit 2.8/12 and Touit 1.8/32 Sony mount lens reviews: performance at a priceBy Kevin Carter - Thursday June 27 2013 Lens Review
ZEISS Touit 1.8/32 Sony E mounted on Sony NEX-7 Versus Panasonic Leica Summilux DG 25mm F1.4 mounted on Panasonic GH2
With a DxOMark score of 22 points mounted on a Sony NEX 7, the 1.8/32 lens averages out just ahead of its closest equivalent rival, the Panasonic-made, Leica-branded Summilux DG 25mm f/1.4 (50mm f/1.4) but there’s a catch. First, the Panasonic made Leica lens has a faster maximum aperture, which is more complex to correct for. Second, the 18-Mpix sensor used by the Lumix GH2 has a lower pixel count than the 24-MPix unit of the NEX-7, making it difficult to make direct comparisons between the sharpness scores. Overall, though, the two are very close in sharpness, and similar overall in image quality.