Digic IV is a beast.

So when the 1DMIII came out it did 100mp/sec. That's 10fps at 10mp for 10x10=100. Given that this is with dual digic III processors. We might assume 50mp/sec per processor.

Enter the Digic IV. 5DMII is 21mp and 3.9fps. Which is 81.9mp/sec.

Could it be the next 1D will be 16MP at 10fps, or the 1Ds will be 30MP at 5fps. Since the 5DMII is most likely running slow? Could it be more.

Then it hit me. Which could also mean that the 5DMII could have been 16mp at 6.5fps. But alas that would kill 1DsMII sales. Nikon position perfectly in the range they knew Canon would not go.

So will Nikon introduce the D700m, with added movie mode? (My film hold out friend is wait for it, by christmas?)

I'm assuming if you shoot in sRAW, there would be no change in fps? If so, that's a shame

The 50D with 6fps @ 15mp = 90mp/s throughput!!!

tom777 wrote in post #6333247
The 50D with 6fps @ 15mp = 90mp/s throughput!!!

Good call. This is real close to a single chip replacing a dual system. I wonder if they would put the digic iv in the 1D as a single chip to reduce cost. Hum! interesting to speculate.

ef2 wrote in post #6333181
I'm assuming if you shoot in sRAW, there would be no change in fps? If so, that's a shame

I agree. If the Canon "Marketing" wanted to take control of this product (which apparently they did) with the ">Mpixel" = ">camera" approach, THEN they should have let the engineers exand the capabilities of this DigicIV processor and allowed it to maximize throughput with sRAW1 and sRAW2!

Adding in this data from Canon on the 5DmkII:

RAW: ~25.8MB (5616 x 3744 pixels) = ~21Mp
sRAW 1: ~14.8MB (3861 x 2574 pixels) = ~9.9Mp
sRAW 2: ~10.8MB (2784 x 1856 pixels) = ~5.2Mp

With what davidfig put in: "21mp and 3.9fps. Which is 81.9mp/sec." (eg - 81.9MPps)

The theoretic throughputs for sRAW1 and sRAW2 are:
sRAW1: 81.9MPps / 9.9Mp = 8.27fps
sRAW2: 81.9MPps / 5.2Mp = 15.75fps

BUT, that is strictly theoretic...the post processing done for the sRAW1 and sRAW2 (I'm thinking along the lines of the pixel binding info being introduced) would definitely decrease the FPS output of the theoretic.

Just imagine if Canon had made the sRAW mode give 5+ fps! It would have been amazing.

It seems like changing a dual system camera to a single would be very retroactive.

It's like if you are making a computer, and the goal is to reach 2 GHz, say 5 years ago. You would have to use two 1 GHz processors. When the next processor comes out that gets to 1.8 GHz(or even two), is the company going to redesign the entire system? Doubtful, they will put two of the most powerful processor in there.

davidfig wrote in post #6333169
So when the 1DMIII came out it did 100mp/sec. That's 10fps at 10mp for 10x10=100. Given that this is with dual digic III processors. We might assume 50mp/sec per processor.

Enter the Digic IV. 5DMII is 21mp and 3.9fps. Which is 81.9mp/sec.

Could it be the next 1D will be 16MP at 10fps, or the 1Ds will be 30MP at 5fps. Since the 5DMII is most likely running slow? Could it be more.

Then it hit me. Which could also mean that the 5DMII could have been 16mp at 6.5fps. But alas that would kill 1DsMII sales. Nikon position perfectly in the range they knew Canon would not go.

So will Nikon introduce the D700m, with added movie mode? (My film hold out friend is wait for it, by christmas?)

Who has a 1DS Mk2 for sale?
I did not think they were still available...

Kirby

tomcat360 wrote in post #6334272
It seems like changing a dual system camera to a single would be very retroactive.

Its about chip count. Let say the chip is $20 to Canon, that is a reduction in final cost of as much as $200 (with all the manufacturing, testing, software,etc). Which means profit to canon.

Wait..... what am I thinking.

It does 2MP at 30fps which is 60MP/s. Wonder if you can extract frames from MP4 video.

tomcat360 wrote in post #6334272
It seems like changing a dual system camera to a single would be very retroactive.

It's like if you are making a computer, and the goal is to reach 2 GHz, say 5 years ago. You would have to use two 1 GHz processors. When the next processor comes out that gets to 1.8 GHz(or even two), is the company going to redesign the entire system? Doubtful, they will put two of the most powerful processor in there.

its easier to design and test a single processor system and its memory interconnects, especially when the camera circuit boards are much smaller than computer motherboards.

davidfig wrote in post #6334751
Wait..... what am I thinking.

It does 2MP at 30fps which is 60MP/s. Wonder if you can extract frames from MP4 video.

Yes, you can, with Microsoft Movie Maker. You take snapshots with the player paused.

I really don't see the 1DIV having only 10MP. My prediction is 18. 1DsIV, maybe 29.

I also don't see the 1DIV churning out shots at 16 FPS unless Canon engineers a high-strength mirror and shutter system that could withstand such speed! I predict 12 fps.

12 fps @ 18 MP = 216 MP/sec. That can be done with 2x DiGic 4 processors.

I can't wait for the new 1D and 1Ds!

Let's see...

Amount of data to move in 5D Mark II (DIGIC IV):
(5616px * 3744px * (14bit) * (3.9fps)) = ~137MB/s
(1920px * 1080px * (14bit) * (30fps)) = ~103MB/s


Amount of data to move in 1D Mark III (2 DIGIC III):
(3888px * 2592px * (14bit) * (10fps)) = ~168MB/s


Amount of data to move in 1Ds Mark III (2 DIGIC III):
(5616px * 3744px * (14bit) * (5fps)) = ~175MB/s


Amount of data to move in 5D Mark I (DIGIC II):
(4368px * 2912px * (12bit assuming) * 3fps) = ~54MB/s

Yes, DIGIC's main processing power will be devoted to post-processing of the raw sensor data. However, if we were to speak strictly in terms of DIGIC processor's capabilities in terms of data bandwidth, DIGIC III's processing limit is at about 100MB/s whereas DIGIC IV's processing exceeds 137MB/s - probably at around 150MB/s.

Interesting note... I thought that these cameras required incredibly high-end electronic components. I guess not.