Tomx72

Lives in United States United States
Joined on Dec 15, 2010

Comments

Total: 7, showing: 1 – 7
In reply to:

cquarksnow: With HEVC265 becoming ubiquitous for 8K, it seems to me a 4320p/60 @10bpc at 48MB/s with overhead like ExFAT won't present much of an issue :
https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding_tiers_and_levels

More of a concern is display connectivity, if not SuperMHL or better.

"More of a concern is display connectivity, if not SuperMHL or better." Time to go for DisplayPort on cameras. DP standard 1.4 for full 8k has just been completed recently, includes USB-C - this would provide an ultimate data-control-image interface.

Link | Posted on Mar 5, 2016 at 19:53 UTC

Redundant to the uhs u1-u3 (could be continued till u9) speed class and already incomplete: there are a handful of faster than "v90" cards on the market. Push 600+MB/s UHS-III and real innovation that enables 30fps RAW continuous drive on 20-24MP cameras.

Link | Posted on Mar 5, 2016 at 19:50 UTC as 5th comment
In reply to:

Tomx72: No BSI, no IBIS, no 2.8/17-50 or similar lens = no deal.

Even with the lighter LA-EA3 Adapter that lens adds 688g, more than 1.5x of the body, 1.8x heavier (and worse balanced) as my current olympus 12-40. Such a sleek body cries for native lenses...

Link | Posted on Feb 3, 2016 at 17:36 UTC

No BSI, no IBIS, no 2.8/17-50 or similar lens = no deal.

Link | Posted on Feb 3, 2016 at 17:03 UTC as 326th comment | 4 replies
In reply to:

Joriarty: Right now, 4K video usually involves line skipping, such that one red, blue, or green pixel = one full RGB pixel in the video. So the 4K video isn't as sharp as it could be. If you look at the 1080p output from recent cameras, it's often almost as good as the 4K because the camera downscales a super-sampled version.

So 8K video means that the cameras should be capable of noticeably better quality 4K, whether you shoot in 8K originally let the camera downscale before saving. You'll get super sharp 4K that can withstand a little cropping, and that's a good thing. For the rest of us, there's not much wrong with 1080p.

You have full sensor readout in the Sony RX100 mkIV, RX10 II, A7sII, and the s35 mode of the A7rII. No need to rely on the line-skipping pana 4k implementation...

Link | Posted on Dec 7, 2015 at 22:51 UTC
In reply to:

Tomx72: As earlier stated: 200Mbps, 422/10bit h.265 - "only" 4k, INTERNAL and I am happy.

"the introduction of 8K video in cameras will eliminate the boundary between videos and stills." Really? Stills are 444/14bit raw nowadays...

Wrong. 444: chroma subsampling, bit: ADC bith depth.

Link | Posted on Dec 7, 2015 at 21:25 UTC

As earlier stated: 200Mbps, 422/10bit h.265 - "only" 4k, INTERNAL and I am happy.

"the introduction of 8K video in cameras will eliminate the boundary between videos and stills." Really? Stills are 444/14bit raw nowadays...

Link | Posted on Dec 7, 2015 at 20:16 UTC as 47th comment | 3 replies
Total: 7, showing: 1 – 7