I just received the latest installment of the full frame Sony Alpha A-series, which is known as the Sony A7s and I did some High ISO Testing!
So, what sets the Sony A7s apart from the A7 and A7r is the new 12.2mp full frame processor! This lower pixel dense sensor allows for the individual pixels to be physically larger than those on the 36mp A7r for example. With larger pixels comes better High ISO sensitivity and dynamic range theoretically. I had to find out just how good the Sony A7s sensor was, so I immediately went to the lab and did a few test shots in raw quality to see what we actual have.
I took a few other sample photos as well, but the High ISO lab photos are really what most of you wanted to see I would think 😉
Sony A7s Highlights
Sony A7s High ISO Lab Test Photos
I was using the 35mm prime Zeiss lens @ f/2.8 on the Sony A7s Auto WB, Raw Quality, saved as 75% quality jpeg, sharpen for web – standard.
Click the photos!
Sony A7s Sample Photos
I took a few random shots in the few minutes I had today 😉
This first scene offered some nice dynamic range and 35mm worked out perfect.
Click the photos!
Another cool Zacmax Sculpture popped up near where my wife Michele works. This one has some really nice character to it 😉
Driveway flowers and coolers in the distance waiting to go in the shed 😉
I just took this image and was amazed by using f/8 in such low light! I was using Auto ISO, so I raised the High parameter in the menu t0 ISO 100400. The camera chose ISO 32000 for this next image using Auto ISO once I raised the maximum in the menu. I also took this in jpeg quality!
This is what the scene looked like from the hallway, just so you can see how dark it was in the room.
Note the ISO in the caption just below thew images!
Here is the same scene with the camera at the door looking into the dark.
So far I’m very impressed with the Sony A7s High ISO and I think when I calibrate the WB and use better lighting it will look even better. ISO 102400 looks better than I was expecting and beyond that is not really usable, but nice to have available in those impossible situations. Real world also needs to be tested and that is what ultimately matters in the end. So far the 35mm f/2.8 lens is proving to be razor sharp as you can see in the sample photos.
That is all for now and please feel free to ask questions and comment below as always,
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