While the full frame sensor is an integral part of the low noise level of the images, and it gives that nice extra shallow DOF, for a video oriented camera its definitely an unconventional sensor size. Focusing is just going to be that much more difficult, unless you always shoot at small apertures. At that point you are bumping the ISO anyway so..... Seems like an APS-C sensor would have been a better choice, maybe? Or am I making it a bigger issue than it really is?

What is the actual price of this thing? I've heard $1,699 while others (dslrfilmnoob) are saying $2,500. Why wouldn't Sony include that in the press release?

@DanPV

All this is pure fantasy now.

VK is right. The light advantage doesn't exist until you start shooting 0.95s, and even then, in my opinion it's only due to lowlight ability in the past.

That dojo stuff might as well have been shot at 400 ISO/1.4 as far as I can see it, where noise and overall IQ are concerned, and I'm not the biggest lowlight groupie... it did look quite damned impressive.

Atomos Shogun external recorder is due Q3 or 4, that will record 4K 10 bit 4:2:2 over HDMI. Price stated to be "under $2,000".

So, perhaps very high IQ, but it looks like the cost of entry for 4K will be $4,000+ and will require a rig to manage the recorder/monitor.

I don't think I'll be canceling my GH4 order.

While I don't like the size/weight of FF lenses anyway, the "No in-camera 4k recording" mis-feature makes this camera completely uninteresting to me.

I look forward to seeing the dynamic range as well on the a7s, for me, the adaptability of the mount, good video, and good stills is making me waver on the GH4, being honest with myself about image, if I was to get the GH4 could I stand by and not buy the external recorder for 10bit 422? Probably not going to be easy preventing that purchase.. (even if it takes a while to save up!) And if I owned an external recorder.. which camera would I then choose?

I do like the still image quality from the other a7's, and I think my Canon FD's and Minolta MD's should capture some nice stills & video on this in low light, great choices we have here :)

@Tron Low light, noise in general, and vastly superior dynamic range. Also, does it autofocus during video? If not, cant really call it a camcorder!

Speaking of dynamic range, why dont all manufacturers implement a log recording mode on their cameras? Is it that difficult/epensive, or is it just that the greedy f**ks dont want to give us too many goodies on the cheaper cameras?

And the people that think they need it don't know how to grade it so footage ends up looking like crap anyways.

@matthere Don't forget that the a7s is going to be a 12mp stills camera and so will probably have lower resolution than the GH4 (or any recent MFT camera). Great for shooting in the dark, though.

@joethepro Judging by the video DR I've seen thus far, while it is certainly a very respectable performance for 8 bit, the term "vastly superior" does not seem to fit here. The dynamic range for stills will probably be incredible but with a resolution of only 12 Mp I think the DR will be squandered for landscape use (unable to deliver large prints at 12Mp). For each strength presented in the spec there seems to be a related problem that accompanies it, at least from my perspective.

My beloved D700 is 12MP also, but twice the size and no video. 12MP is perfect for my uses - I'm starting to warm up to the idea of getting one. Would love to see a native mount lens roadmap - adapters are fun and all but if I would be buying this I would want to keep the size and weight as small as possible.