WOW what a game changer A7s

Started Apr 6, 2014 | Discussions thread
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neil holmes
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Re: WOW what a game changer A7s
In reply to Ontario Gone, Apr 7, 2014

Ontario Gone wrote:

neil holmes wrote:

No, 12mp is fine for intended high ISO use.....the A7 is great at ISOs like 6400 and even 12800 but this will be much better still. People who want the res can have the A7R (which is better at high ISO than 95% of cameras anyway...this is for people who want the highest (currently).

ISO performance at common ISO shouldn't change too much. I get the feeling you are suggesting that the lower resolution will specifically make noise performance better. It won't. Noise performance is about total light gathered, and the A7/r and A7s gather the same amount of light. Perhaps with a newer sensor they may have tweaked something minor, but it will be just that, minor.

No, I think it will be very very good for high ISO because it appears to be from what Sony has shown and a larger pixel count does not necessarily mean a better (or worse) high ISO performance.

The DF, D4s seem to both be about the best at high ISO, no reason to think this will not be also (and maybe a bit better with newer tech also).

One look comparing the D800 and D4 will show you resolution makes no difference when comparing equal portions of a frame. Nobody is forcing an A7r owner to crop to a pixel level, so the noise will be no worse than a similar sensor of less rez. This has been shown countless times. Compare the A57 to A58 to A77, at the same viewing sizes they are nearly identical.

I do not think pixel count matters too much but it does seem the high res sensor FF cameras are among the best but some of the newer lesser pixel count FF cameras are a bit better (only in terms of high ISO).

That Sony have put such ISO as 409 000 tells me it should be great at 12800.

Price seems like it will be very competitive ...and seems like about the same as the A7.

Don't confuse this with 12mp APSC or M4/3 (APSC 12mp DSLRs are mostly ok still).....12mp new FF mirrorless should be a very different level.

The lack of downsampling may help resolution, the higher ISO will help avoid underexposure. Im not familiar if the A7/r uses line skipping, if they do, then yes video noise will be better on the S but stills IQ will likely fall behind since it's only 12mp. I think it will be a big hit with people who have several grand to drop on just a video camera, but anybody serious about stills is likely to need something else too. Regardless how it does, i think every 4k unit that comes out is good for all of us, it will pull 4k TV prices lower which will usher in more content for us to watch.

It is clearly 12mp for video ...the video will be much better than the current A7 (and I like the A7 video in low light).   But the 12mp size is also fine for stills in all but the most extreme use.

I think its stills will also be nce.....not for the landscape shooter (but there is an A7R for that).

AS I said, I can see a few people with both an A7s and A7R and video people with a A7s and GH4.

"Run to the light, Carol Anne. Run as fast as you can!"

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