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Author Topic: Leaked photo of 5DIII/X to be 38MP ?  (Read 12370 times)

jm345

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #15 on: February 17, 2012, 11:08:02 AM »
The LCD screen on that camera looks similar to the "Wide" LCD on some of Canon's point and shoots like the SX 230 that is sized more to accomodate HD video than 3:2 stills.

http://www.usa.canon.com/cusa/consumer/products/cameras/digital_cameras/powershot_sx230_hs

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #15 on: February 17, 2012, 11:08:02 AM »

WildBill

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #16 on: February 17, 2012, 12:00:27 PM »
Nice post he made there... I don't quite get it though. On my 60D, when I zoom all the way in on an image, the size of the crop indication is basically identical to that of the 5D-? photo as he recovered it. Obviously, the 60D is 18Mpx. And its screen is the 3-inch 720 x 480 LCD that he's using for his calculations.

You need to remember to take into account a full size sensor versus a crop sensor.   The same size minimum zoom indicator box (for lack of a better term) implies 1.6^2 or 2.56 times as many pixels for a FF camera vs. a crop.  If the box was truly the same size as the 60D, that would imply the camera to be about 46Mpixels.
« Last Edit: February 17, 2012, 12:03:48 PM by WildBill »

Lyra Video Productions

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #17 on: February 17, 2012, 12:03:43 PM »

marekjoz

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #18 on: February 17, 2012, 12:12:10 PM »
lol, "enhance"


Blade Runner was intented to be in the future and it's nothing compared to what CSI achieves NOW :)
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Mt Spokane Photography

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #19 on: February 17, 2012, 12:18:03 PM »
There have been people trying to analyze the camera since it came out, this is old news.  Depending on the assumptions they made, the numbers are all over the map, you can make it any number you want.

SomeGuyInNewJersey

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #20 on: February 17, 2012, 12:20:17 PM »
With how blurred the little square is that he used to calculate the portion of the zoom screen I think the error margin that measurement is pretty high, so even if it is to scale he could be out a wide margin when he bases his calculations on it.

Mooose

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #21 on: February 17, 2012, 12:28:22 PM »
you can make it any number you want.

Even 12 gigapixels?!?
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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #21 on: February 17, 2012, 12:28:22 PM »

marekjoz

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #22 on: February 17, 2012, 12:30:46 PM »
you can make it any number you want.

Even 12 gigapixels?!?

Why not? There are more particles on the surface, so why not? :)
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Mooose

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #23 on: February 17, 2012, 12:33:42 PM »
Nice post he made there... I don't quite get it though. On my 60D, when I zoom all the way in on an image, the size of the crop indication is basically identical to that of the 5D-? photo as he recovered it. Obviously, the 60D is 18Mpx. And its screen is the 3-inch 720 x 480 LCD that he's using for his calculations.

See included great quality webcam image of my 60D lcd screen when fully zoomed in on an image, and compare... (The horizontal lines are just the curtain-type things I took a picture of to make this comparison)

On my 7d you can zoom in past 100% crop.   Also, I believe my 7d has much higher resolution than 720x480 (they claim 900,000+ pixels in the specs).   The new 5d may even have an even higher resolution than the 7d.
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Tijn

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #24 on: February 17, 2012, 12:51:40 PM »
You need to remember to take into account a full size sensor versus a crop sensor.   The same size minimum zoom indicator box (for lack of a better term) implies 1.6^2 or 2.56 times as many pixels for a FF camera vs. a crop.  If the box was truly the same size as the 60D, that would imply the camera to be about 46Mpixels.
Comparing a FF 18MP image and a crop frame 18MP image, the both images are exactly the same size. Their previews will be exactly the same size, and the crop indicator box on the image preview will be exactly the same size. I do not see your point.

Tijn

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #25 on: February 17, 2012, 12:55:14 PM »
On my 7d you can zoom in past 100% crop.
Really?
I wasn't aware. Anyhow, if that's the case, it might as well be the case for my 60D and also for the 5d mark 42. It would still invalidate this guy's 38MP conclusion.

Quote
Also, I believe my 7d has much higher resolution than 720x480 (they claim 900,000+ pixels in the specs).   The new 5d may even have an even higher resolution than the 7d.
As can be read in the discussion from the original topic, the 720x480 is for tricolor pixels. Each consisting of three subpixels. You have 920K subpixels, the 60D has 1.04 mil subpixels. (Which, coïncidentially, is 720x480x3 = 1036800)
« Last Edit: February 17, 2012, 12:56:56 PM by Tijn »

Mooose

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #26 on: February 17, 2012, 01:02:03 PM »

Quote
Also, I believe my 7d has much higher resolution than 720x480 (they claim 900,000+ pixels in the specs).   The new 5d may even have an even higher resolution than the 7d.
As can be read in the discussion from the original topic, the 720x480 is for tricolor pixels. Each consisting of three subpixels. You have 920K subpixels, the 60D has 1.04 mil subpixels. (Which, coïncidentially, is 720x480x3 = 1036800)
[/quote]

Ah.  Didn't know that.   Then maybe also you can't zoom in past 100% crop on the 7d.

Thanks.
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Mooose

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #27 on: February 17, 2012, 01:18:38 PM »
As Tijn pointed out I think the OP's analysis is wrong (as was mine because I had the LCD size wrong).   The mystery camera is zoomed into about 1/7th - 1/8th of the horizontal size.   If the screen is 720*480 and he is fully zoomed in then the dimensions would be (assuming 1/8th) -  5760 x 3840  or 22MP (!).

The screen could have a higher resolution than 720*480 and the tester may not be fully zoomed in.

Edit: OOPS!   Fixing my calcs again I get between 38MP - 50MP.   
« Last Edit: February 17, 2012, 02:43:34 PM by Mooose »
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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #27 on: February 17, 2012, 01:18:38 PM »

LetTheRightLensIn

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #28 on: February 17, 2012, 02:27:37 PM »
Someone on the dpreview forum did some calculations and I just wanted to share this:

http://forums.dpreview.com/forums/readflat.asp?forum=1032&thread=40642634

Based on the size of the LCD screen, the size of the zoom area on the back of the camera it might be 38MP...

For me personnaly, I hope this isn't true!

This was done a long time ago on FM and the easiest figure to come up with by far was 30MP (with a 23-39P range of by far the most likelihood). That said that are plenty of potential gotchas, of course. Nobody bother to replicate the method using a 5D2 yet to see what number they would come up.

Anyway going but this, one would expect a 30MP or so 5D3, with about 6fps and souped up 7D AF.
In many ways that sounds more believable to me than the 22MP, 7fps, 1DX AF but so far every single rumor on this site says 22MP so I guess it depends who you trust more.
« Last Edit: February 17, 2012, 02:35:33 PM by LetTheRightLensIn »

Viggo

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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #29 on: February 17, 2012, 02:57:07 PM »
If the 5dX/III gets "1d x af" or even 61 points with less sensitivty, and 22mp and 7 fps, why would anyone buy a 1d X? And I am completely aware of how a 5d2 and a 1d mk4 compares, and although I used every single functon of the 1d4, the center point of the 5d is is still better in many ways, MUCH cleaner low iso files, the only thing the 5d lacks is the specs that seem to indicate what the 5dX would look like, but then the benefits of the 1d X will be washed away, and for half the price, I think a lot of people who HAD to buy a 1d for certain areas of use, like me, are more than willing to sacrifice AF- tracking sensitivty and live with one or three dual-cross points compared to 5...

To me, the 5d specs looks waaaaaay off, considering what the 1d X brings to the table. 22mp at 7 fps with 61 point AF, no way.... If the 1d X hadn't been released yet, then yeah, but after seeing that, how can they make the 5d THAT close, they have learned that the VEERY hard way from destroying the 1ds3 sales with the 5d2....
« Last Edit: February 17, 2012, 02:59:20 PM by Viggo »
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Re: Leaked photo of 5DIII/X to be 38MP ?
« Reply #29 on: February 17, 2012, 02:57:07 PM »