A7s Low Light Footage from Matthew Allard ACS on Vimeo.
Readers keep sending me new A7s tests. So here are three videos and at the very bottom an interesting A7s ($2,500) vs Nikon D4s ($6,500) comparison.
Sony A7s test Geco from geco campos on Vimeo.
Handle with Care: Sony Alpha a7S Camera | YAK FILMS
Dpreview added the Sony Alpha 7S to the test scene comparison tool
A Chinese review at dc.it168.com compares A7S and D4S high iso quality. Both save as RAW, D4S is 14bit lossless compressed, uses ACR 8.5 encoding as default setting:
ISO 1600 comparison image (Click here).
ISO 3200 comparison image (Click here).
ISO 6400 comparison image (Click here).
ISO 12800 comparison image (Click here).
ISO 25600 comparison image (Click here).
ISO 51200 comparison image (Click here).
ISO 102400 comparison image (Click here).
ISO 204800 comparison image (Click here).
ISO 409600 comparison image (Click here).
A7s Store links:
Sony A7s preorder in USA/CA at Amazon, Adorama, BHphoto, Sony USA, Sony Canada.
Sony A7s EU pages: Sony DE, UK, ES, FR, IT, NL, BE, AT, CH, SE, NO, FI, PL. And Wex UK.
0 Responses
1st blood! ^^
Couldn’t understand the purpose of vid#1. Vid#2 shows pics on a Samsung monitor. 😉
#3 YAK film rocks! 🙂
+1
YAK film is very nice for many aspects. 🙂
agreed….those are some cool dance moves!
minipixels.net | Automotive Photography
It may be an impressive camera for video but it sure doesn’t look like it for stills. I was hoping iso 6400 would be noise free.
I don’t think any camera will be noise free at 6400
Try it your self before talking about senseless crap about it. It has incredibly low noise even in real dark street and maybe more importantly it has incredible lowlight af that actually sees and focuses on people even in minus four EV light level.
Do you have the actual raw images at 6400 ISO to show us? Because all I see is just the video. Thank you.
Its not really better then the D4s or Df for stills. But still really nice noise pattern when I look at the images on dpreview. I think D4s and Df looking a little sharper, just me?
My biggest problem with sony ist the not so much RAW. (D700 same pixel count 24MB vs 12MB the Sony RAW. Thats the same as compressed on the Nikon…)
Yeah definitely the df looks a bit sharper but at the cost of extra color noise in black. But for me it is the combination of the incredible high ISO and incredible low light af that makes it unbeatable. In case you guys wondering I already got it and love it.
The D4S comparison shows us pretty well what the DxOmark numbers do. Up to about 12800, there’s no substantive advantage to the A7S over the D4S. However, by the time you get to 25,600, differences start appearing which widen higher up the ISO scale. However, by that point still image quality has degraded so much, for most purposes the images are unusable anyway, so you have to question the purpose apart, maybe, from where the alternative is no image at all – maybe reportage in extreme circumstances.
Video is a different issue. Due to the 4K 1:1 and 2K 4:1 pixel mapping, I expect the A7S to have a noticeable low-light video advantages over other FF cameras currently available. Also, video is, by its nature and perception, not as demanding of ultimate IQ, especially as most people will probably be using 2K for some time to come, often observed from a distance. I suspect, therefore, speeds equivalent to a couple of stops higher will be acceptable on video over stills using this camera.
a6000 vs D4s 🙂
https://www.youtube.com/watch?v=nr1yZCvWsbE
The first video was shot in my country 🙂
I was hoping for a video of it in a closet. I plan on filming all of my stuff in a light tight environment. If it can’t see in the dark then fo-get-about-it.
now I put english subtitles in my mini test of the Sony A7s https://vimeo.com/98137975
here you can find some of the original files; some of them in 60p, others in 23.97p and the slow motion is in 120p and you must to slow it donw in post; all of them handhel and with a no stabilizated lens, very fast, very ruff; but we want to try the worse scenarios: dropbox.com/s/1pi0ed3h6531kpz/para%20subir.rar?n=159175706