Possible Canon EOS 5D Mark IV Spec Talk [CR2]

Hi,

I think the 18 mpixel would be fine, if it is a multi-layer sensor and not the good old Bayer mosaic.
As we read earlier there should be a 5 layer (UV+Blue+Red+Green+IR) in the pipe, but nobody knows when it will going to be reality.
The 12 FPS burst is not my world, I am a single shooter from the film era, even if I am shooting almost ten year with DSLRs.
More DR, more accurate color scene, higher ISO capability is what I really need. For example, a Bayer mosaic 18mp FF sensor has less pixel density than my APSC 50D, but with the multi layer technology it is really doesn't matter any more.

By a videographer standpoint, the 4K like what we have in the EOS 1Dc is a big file size, not more. An EOS 5DMkIII with the ML's 14 bit raw has almost same detail in an 1080p footage, more DR and far better color accuracy.
What is really needed is a 14 bit raw video flow instead of the funny frame by frame ML way. And with the global shutter, Dual pixel AF, 60p mode and so on.
An 1080p 14 bit raw footage has almost similar detail as the Canon's factory setting 4K.
 
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vscd said:
That's just the thing, in order to get that 30fps rate you have to go mirrorless.

No, that's a marketing-myth from the mirrorless department. You can leave the mirror open and use the same techniques as the mirrorless does. The DPAF is even better for this than the existing solutions. You will loose the good AF-Modul, but you can do anything else as "they" do.

Taking a 4k Video ist nothing more than shooting @50/60 fps... (and a smaller images of course).

Or use a semi transmissive fixed mirror. Then you get fps and no view finder blackout at all....but still being able to look though the lens.
 
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Or use a semi transmissive fixed mirror. Then you get fps and no view finder blackout at all....but still being able to look though the lens.

Yes, Canon already had that, but it darkens the OVF quite heavy. Furtermore you loose 1-2 stops of light to the sensor which has to be compensated. This is a Cul-de-sac for the majority, I think.
 
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Light_Pilgrim said:
If this happens, I am off Canon. I was a very happy camper so far for 6 years.
I currently own a 5D MKIII, but it looks like there is just no upgrade.
5Ds is not an upgrade and it looks like 5D MKIV is not an upgrade either.
Where is the equivalent of the D810?

Am lost. What will you call an upgrade pls? What specs will satisfy you? Genuine question.
 
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vscd said:
Or use a semi transmissive fixed mirror. Then you get fps and no view finder blackout at all....but still being able to look though the lens.

Yes, Canon already had that, but it darkens the OVF quite heavy. Furtermore you loose 1-2 stops of light to the sensor which has to be compensated. This is a Cul-de-sac for the majority, I think.

They could do both: provide optional flip up for the semi-transparent film, which could be used in low light (slower frame rate). Leave it in place in good light for higher frame rate shooting.
 
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I wouldn't draw too many conclusions about any upcoming 5D Mark IV from this. My guess is that they've taken an already existing 18MP sensor and are using this as a testbed for CFast together with the 4k video and the high FPS. If Canon doesn't have any body that uses CFast today, it could make sense to test out new drivers, new hardware and interfaces on a testbed like this.
CFast is a serial data transfer system, while the CF is parallell. Have to create a few new obstacles to solve for Canon.
 
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Tugela said:
Lee Jay said:
Tugela said:
Lee Jay said:
Tugela said:
Having higher pixel densities just reduces ISO performance.

No it doesn't.

Yes it does.

Someday someone needs to explain to me why this myth persists after a decade of things going the other way despite similar basic sensor performance (QE).

Because when your small pixel drowns in a sea of noise a large pixel will still be getting a signal. It is simple physics.

Way to advance an argument: "I'm right, you're wrong". I think both could do with an added [citation needed].
 
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OK, here is the answer.

If I am to upgrade my 5D MKIII (being a landscape and portrait/street photographer), this is what I would love to get as my next camera:
1. 30+ MP (more resolution than 22MP)
2. 2 stops of DR improvement and less shadow noise
3. AF system can be the same or can have all cross type points
4. 1 stop ISO improvement - nice to have, not critical

sanj said:
Light_Pilgrim said:
If this happens, I am off Canon. I was a very happy camper so far for 6 years.
I currently own a 5D MKIII, but it looks like there is just no upgrade.
5Ds is not an upgrade and it looks like 5D MKIV is not an upgrade either.
Where is the equivalent of the D810?

Am lost. What will you call an upgrade pls? What specs will satisfy you? Genuine question.
 
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Light_Pilgrim said:
OK, here is the answer.

If I am to upgrade my 5D MKIII (being a landscape and portrait/street photographer), this is what I would love to get as my next camera:
1. 30+ MP (more resolution than 22MP)
2. 2 stops of DR improvement and less shadow noise
3. AF system can be the same or can have all cross type points
4. 1 stop ISO improvement - nice to have, not critical

sanj said:
Light_Pilgrim said:
If this happens, I am off Canon. I was a very happy camper so far for 6 years.
I currently own a 5D MKIII, but it looks like there is just no upgrade.
5Ds is not an upgrade and it looks like 5D MKIV is not an upgrade either.
Where is the equivalent of the D810?

Sounds like you're looking for the 5Ds/5DsR (assuming the previous reports about the DR being improved are true.)
 
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PureClassA said:
9VIII said:
I still wish they had just stuck the 5Ds sensor in the 1Dx body, I want the resolution along with the huge battery and integrated grip (more stable on a tripod).
But I also want wi-fi and a touchscreen.
Sigh, now that they have a 24MP sensor, chances are the SL2 is actually going to be the best body for me (whenever they get around to it).

The 50MP sensor?? I wont say it's impossible, but it's pretty far down the pecking order of probability. That was a sensor they obviously tuned for low ISO, not the end all be all action sensor.

Give me a 1DX2 with a mid 20 sensor, 14fps, an absolute criminally insane number of AF points that can focus at f2, and make 12800 ISO look like 3200. There's your unicorn list.

I guess a simpler way of putting it is "1DsIV".
ID body with landscape sensor. But yeah probably not going to happen.
 
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18 MP sounds really intriguing.

If this camera was able to achieve ISO 3400 or greater on DXOMark's rating scale, that would be tremendous.

If Canon can pull that off and get its read noise issues under control, I could see myself buying two of these cameras.
 
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For those wishing for a 36 MP Camera and/or wanting something close to or similar to D810. Its never going to happen because of this...

funnymugs2.jpg

funnymugs1.jpg


Also mentioned here:
http://www.sonyalpharumors.com/canon-pokes-fun-on-nikon-and-sony-because-they-now-have-less-pixels/

To me, it makes no sense for someone to poke fun and then create one of their own. Might as well call defeat.

So... with that said those of you admiring a D810, its time to switch!
 
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scyrene said:
Tugela said:
Lee Jay said:
Tugela said:
Lee Jay said:
Tugela said:
Having higher pixel densities just reduces ISO performance.

No it doesn't.

Yes it does.

Someday someone needs to explain to me why this myth persists after a decade of things going the other way despite similar basic sensor performance (QE).

Because when your small pixel drowns in a sea of noise a large pixel will still be getting a signal. It is simple physics.

Way to advance an argument: "I'm right, you're wrong". I think both could do with an added [citation needed].

How about a test?

Pixels that would give you a 208MP full-frame sensor on the left, a 13MP full-frame sensor on the right. Same ISO, same f-stop, same shutter speed, same lighting, same focal length, both processed from raw using the same settings on the same converter.

Pixel%20density%20test%202%20detail%20filtered.jpg
 
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I think I'm in the camp of others on this thread suspecting the body (and specs) in question is a test bed for specific technology and not a prototype destined to become an actual product as-configured.

What stands out to me is the fact that as I read the rumor, I was thinking, "This sound like a 1DX," and then read this: "It was stressed that the above is NOT the EOS-1D X Mark II. There will be a quantum leap in fps, dynamic range and a bump in resolution for that camera."

Now that sound exciting! I might never own a 1 Series body, but a new breakthrough in that series is good news, nonetheless. I'm surprised these odd-ball 5DIV "specs" are even being talked about when a "quantum leap" in FPS and dynamic range is rumored to be in the pipeline.

Of course, if the source is the same, then it might be as bogus as this 5DIV spec list. :P
 
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