Sony A77 - User Experience - Part 4 - High ISO

Sony A77 16-50mm f/2.8

Some high ISO images with the A77. Shot under typical low light conditions, in a dark room in daylight. hand held. I even let the silver of the camera underexpose the images slightly.

As ever larger versions available at flickr > Actions > View all sizes > Original.  

As I think you can clearly see the raw files are pretty bad. Totally unusable as far as I'm concerned above ISO 6400. The in-camera rendition of the jpgs is somewhat better, and indeed ISO 1600 and 3200 are actually pretty good.

Incidentally, below is a B/W conversion from the ISO 6400 jpg, using only the blue channel, and that is very useable.

Sony A77 16-50mm f/2.8

So the highly populated sensor takes it toll at high ISO. This is obviously not the worlds greatest low light camera. However its fine up to ISO 3200. Not an issue for me, but many would perhaps require a better performance. Having said that, when I was shooting weddings, if I had to use higher than ISO 3200 I would break out the flashgun, a somewhat neglected item these days. 

These high ISO results would work for me if I was still shooting any kind of event indoors, and I've certainly coped with much worse sensor performance than this. However, I'm not a heavy duty high ISO user and that has to be borne in mind. 

I'm not going to be doing any more stills high ISO tests, so I'd recommend the excellent Imaging Resource for that. Their high ISO samples for the a77 can be found here:-

http://www.imaging-resource.com/PRODS/AA77/AA77A7.HTM