Canon Rumors said:
Well this thread was a fun read, I missed it from a few weeks ago.
As far as we know, there are only 2 DSLRs and 1 Cinema EOS camera coming the rest of the 2017.
- EOS 6D Mark II
- EOS Rebel SL2
- Cinema EOS C200 (won't be C100 Mark III)
If that changes, we'll let you know.
====
****************
***** SPECIAL NOTE: The math stated below is WRONG!
***** A second comment below this message gives a full explanation
***** as to why, but this message will be left AS IS for posterity's sake!
***** "HarryFilm"
****************
As per a previous poster I am CONCEDING that my statements are UNSUBSTANTIATED and as of yet UNCONFIRMED! ...BUT....on a personal level, I do must give some considerable weight to those rumours due to the credibility and credentials of the Netherlands/Germany contacts. Again, we shall about how much proof is in the old pudding and do wait and see until after NAB 2017.
On another subject, in terms of speed of 25 fps burst rate, the math is as follows:
8192h x 6036v pixels = 49,446,912 pixels
at 48 bits per pixel (16 bits per RGB/YCbCr colour channel)
= 148,340,736 bytes per frame x 25 fps
= 3,708,518,400 bytes per second or about 3.7 Gigabytes per second RAW.
from a computing perspective even at the 700 MHZ to 1.5 GHZ of most ARM-based CPU chips such as the DIGIC-6 and DIGIC-7, one only needs four gigabytes of DRAM or VRAM to hold that before writing out to SSD/Flash Cards in 30 seconds or less on the cheaper Flash Cards. To add four gigabytes of VRAM and a decent interface between the memory and the DIGIC chip would be less than 75 Euros for Canon!
The fastest Flash Cards that could still be considered affordable are around 100 megabytes per second with the best at 160 megs per second. With dual cards you could stripe/interleave the image writing and move 4 gigabytes from VRAM to Fast Flash in 10-to-15 seconds or less which on a technical basis for RAW uncompressed format is pretty good!
For Wavelet based JPEG-2000 images 10:1 to 30:1 compression rates, I will calculate a rate of less then 5 seconds to transfer 4 gigabytes to interleaved fast dual Flash Cards. If the SATA interface option is true, then write speeds of 500+ megabytes per second would be possible so two or three seconds for four gigabytes of RAW images when using striped mode is all that would be needed in terms of write time. (i.e. two SATA drives writing at same time). JPEG-2000 compressed images would have an unlimited write time at 25 fps at 10:1 to 30:1 compression rates to SATA drives.
Again, this is NOT a technically difficult thing to do. In my own workplace we transfer multi-terabyte video files and even whole PETABYTE (1000 Terabyte files!) in mere tens of seconds using multiple 100 gigabit Ethernet connections and RAID-0-to-RAID-5 drives. So for a company as big as Canon, this is not a big deal to accomplish at a reasonable price. This is probably ONE REASON why one of the specifications that was emailed to me indicated that an attached twin-drive SATA interface was available so that 4 gigabytes worth of 25 fps RAW image files could be transferred to disk in less than 3 to 5 seconds. That's an EDUCATED GUESS on my part but my calculations seem to hold up when I look at them a few times.
Again, we shall see soon enough......