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Welcome to Michael's blog. Michael Andrew, (aka Michael The Maven) is a freelance producer, photography instructor, tech innovator, and when needed, disaster aid specialist. Disclaimer: Michael is a participant in Bhphoto & Amazon affiliate programs that provides an advertising commission if you purchase through links on this website.


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07.02.14         photography  

Sony A7S Low Light Portrait Test - Maxed Out at ISO 409,600


A huge thank you to my friends at Bhphoto.com who helped get me some very critical gear in my hands, particularly the Sony a7s and some very important accessories for it.

I have only started to look at the A7s and will have plenty more information coming shortly. I have some very mixed feelings about it, initially I didn’t like, and then I started looking at some of the things it can do. The more time I spend shooting with it, the more I realize this is a very special camera.

ISO Noise Comparison Charts are coming soon, but take a look at this result tonight. I was just super curious to see how far I could push it in low light:

This first image was taken to simulate what I was seeing with my naked eye. Essentially a glob of shadows with some streetlight hitting a wall:
Canon 50mm 1.4 ,@f1.4, 1/60, ISO 6400

Ill be honest, I really wanted to just max this baby out, so I did:
Canon 50mm 1.4 ,@f1.4, 1/60, ISO 409,600

I wanted to take it even further, so I added a Metabones Speedbooster to give an extra stop of light:
Canon 50mm 1.4 , with Canon Metabones Speed Booster for Sony NEX @f1.4 (f1.0 equivalent), 1/60, ISO 409,600

You can see that maxed out these images are pretty much unusable unless you are going for a very grungy, digitally, kind of look or are someone that doesn’t really care about image quality, think surveillance.

Even down to 51,200 it looks more or less similar. Ill need to do some more testing to find out what the sweet spot is for ISOs in low light with the Sony a7s, but the thing that impressed me so much was that it was able to see dynamic range, and colors far past what my eyes could, imperfect as it may be. I was very impressed.

Im not sure we will do a Crash Course Training Tutorial Video on the A7S, but I should have an idea after a few more days of testing.

More to come.

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