"Thinking about those two things, I decided to see how my A7r compared to my A7s if I downsized the 36MP files to match the 12MP of the A7s. I decided to see how the two cameras sensors performed at what might be described as 'normal' high ISO settings. i.e. 1600-12800. The A7s will of course go higher, but there are few occasions when I'd even contemplate that. But within the range I indicated, there are many situations when using that ISO setting would be useful. Below is what I got using the Sony FE 55mm F1.8 ZA Carl Zeiss Sonnar T* lens."Read More
The soundimageplus blog has been going since 2007 and to date has over 12 million page views. Written by David Taylor-Hughes, a professional stock photographer, it includes photographic articles dealing with a wide range of themes including film and digital photography.
"I've done a comparison test between these two high quality lenses, the Sony FE 55mm F1.8 ZA Carl Zeiss Sonnar T* and the Sigma 50mm f1.4 DG HSM ART Lens. If DxO are to be believed two of the best lenses ever made."Read More
"The two best sensors I've ever used are in the Sony A7r, the resolution star and the Nikon Df, the premier low light performer. I thought it would be interesting to see how they compared to each other at low and high ISO settings. I used the same lens, my Sigma 50mm f/1.4 ART."Read More
But both cameras are excellent when it comes to image quality at all ISO's and to split hairs doesn't really achieve anything. With decent lenses on both you get top class results. Nuff said.Read More