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Some new wind in the sails of this rumor @ asia.nikkei.com :
"The company will focus on mirrorless single-lens models, with the diminutive 274-gram Lumix GM set to go on sale Thursday and another device capable of capturing 4K ultra-high-definition video also slated for development."
Is it NAB yet?![]()
There's no doubt there's going to to be 4K DSLRs released by the Japanese manufacturers. Sony already said they're working on this, as has Panasonic. The question is what specs, and when? My guess is that most if not all of them will be 8 bit 4:2:0 4K internal recording, with 8 bit 4:2:2 output to external devices. Consumerish.
I think you may be getting confused between colour sub-sampling and colour space.I was under the impression that the 4K broadcast standard had an expanded color space with 4:2:2 as the base.
I think you may be getting confused between colour sub-sampling and colour space.
The latter refers to how accurately a system represents a given colour to the eye - does a red still look red on the screen, or is it becoming orangish? It's a fundamental problem with using 3 values (of R,G,B) to represent the full spectrum. There are some pure spectral colours that can't be accurately represented within the current system - only approximated to. The idea of expanding the colour space is to improve the situation - make colours truer to life. (See http://en.wikipedia.org/wiki/RGB_color_space for a fuller explanation.)
Colour sub-sampling refers to the relative sharpness of the colour detail relative to luminance. It's quite possible to have a relatively unsharp chroma image with colours that are very true to life, and vice versa.
And remember that 4:2:0 4K has four times the luminance pixels of 4:2:2 HD - but also twice the chrominance as well. In other words, a 4:2:0 system with MORE colour detail information than a 4:2:2 one. Such numbers (4:2;2, 4:2;0 etc) are ratios, not absolutes, and only make sense for comparisons when all else is equal.
Lovely idea, but how practical? It's great to sit back, think "what features do I want....?", then write them down....... but somewhere an engineer has to actually turn the wishes into reality. And strangely, it's often far more difficult than non-engineers think. Certainly when you take cost into account.Then the camera would have 4k at 60 fps or more and 4:2:2 and 10-bit and h.265, with an accessory that adds XLR ports and SDI ports and everything else. And no matter what the bloggers predicted, consumers would be deliriously happy because the camera would be the best deal on the marketplace ........
The rumours sites are essentially free market research. The good ones tell you want people want to buy.
:happy:Aww...the comradery and just plain friendliness on this site makes me wanna....be a better man.
(sigh)...Tito I need a tissue