Yikes! The rumored Nikon D800.

Started Oct 5, 2011 | Discussions thread
bobn2
bobn2 Forum Pro • Posts: 53,574
Re: Yikes! The rumored Nikon D800.

sparkling elk wrote:

there you talk about the quality of pixels. i agree that there is an improvement over the last years. however, IQ is more subtile than just high iso performance. finally, it should be all together (colors, contrasts, sharpness and DR).

my only experience with cameras concerning larger pixels and smaller pixels is the change between the 30D to 50D (8mp to 15mp) and 1D3 to 1D4 (10mp to 16mp). for both cases i confirm even better high iso (well, the 50D IQ did not satisfy me, while the 30D was more "lovely", to be unclear).

5D2 was something different. i'd tax it's IQ (5D pixels are larger) below the 1D4, also because of the way how it exposes in certain light situations.

to make it short: (supposed to talk about same sensor technology and not needing an extremely high resolution application-wise)

isn't there really no advantage of larger pixels over smaller ones concerning realisation of best IQ from lowest to highest iso ?

Not really. Of course, you need to talk not only about pixel size and number of pixels, or equivalently sensor size and number of pixels. Generally, for the same size sensor the more pixels the better, until you get to really tiny pixel dimensions.

what the hell i should do with rawfiles of 40MP and and original jpegs of 25MP ?
or rawfiles > 50MP ?
honestely, i dont see this need now.

maybe in 5 years, when i will be able to work on a XXLcore computer, high capacity SSD disks and home-NAS, i could deal with this resolution. (not to forget superfast 64GB CF and SD cards ... and: maybe you'll need the latest EF L-lens versions to keep pace with extreme resolutions... ).

These cameras can do in-camera raw processing, that is you can get the camera to do your raw conversion according to your requirements and then dump it out to your computer, if your computer isn't fast enough.

canon's APSH became as good as FF some years ago. APSC might get as good soon (refering to D7000 discussion). will i need high end FF (replacing MF at a similar performance) ?

i would be happy with a 2x mp sensor and best possible DR, let it be 1.2, 1.3 or FF, but with best ergonomics bodywise and some innovations mentioned here (like stabilised sensor).

The best possible DR comes from having many small pixels, so by and large if you want a sensor with 2xMP and more DR, the easiest way to get it is give it 3x or 4x the number of pixels. Each 4x pixel size increase will give you a stop more sensor DR, if everything else is equal. Usually it is the ADC method that is the limit on DR.
--
Bob

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