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Messages - x-vision

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61
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 04:20:43 PM »
Are there really that many indie movie makers that are shooting in 4K nowadays or is this just all baloney?

4K is the future-proof format. That's why it's important even now, when 4K TVs are still not the norm.

62
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 04:43:48 AM »
it´s still just guesswork.

... but based on years of experience  8).

No point to argue here, as it's really guesswork on my part.
But you will be disappointed if you expect better IQ than the 70D.
Like I said, trust me on that ;).

63
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 04:38:09 AM »
In Canon's product hierarchy, FF ... has better image quality than crop.

Amazing how Canon's product hierarchy aligns so well with physics (or maybe the other way around?)...   ;)

Well, physics would have been 'challenged' at the transition period, when a smaller sensor has superior tech vs the larger - but old - sensor.

But Canon is not taking this risk.

64
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 04:36:38 AM »
obvious?

how can you say that?
you know nothing about the new sensor, do you?

Well, the leaks that appear two weeks before announcement are usually 100% right.
So, these latest specs are the real thing - trust me on that ;).

And then if it looks like a duck, you know it will quack like a duck too.
You will see  - trust me on that ;).

65
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 04:16:48 AM »
OK, We can expect a 1700$ for this, no more!

And why the hell, they have wait 5 full years to produce just this upgrade?

Yup. But it's clear to me now that Canon just won't make a 1.6x camera that would challenge FF in term of image quality.

A 7DII with new sensor tech would have been too close to the 5DIII and 6D in image quality (or even better?).
I was hoping for just that - but it's obviously not happening.

In Canon's product hierarchy, FF is both more expensive and has better image quality than crop.
And this obviously remains unchanged for now.

66
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 01:52:06 AM »

70D 13 Total RAW
http://www.imaging-resource.com/PRODS/canon-70d/canon-70dA5.HTM

Myths die hard, don't they.

Well, here's what the IR says about dynamic range.
  • While it's tempting to evaluate dynamic range as the maximum number of tonal steps that can be discerned at all, that measure of dynamic range has very little relevance to real-world photography. What we care about as photographers is how much detail we can pull out of the shadows before image noise becomes too objectionable.

You seem to be of the tempted type ;).

But what we care about as photographers is how much detail we can pull out of the shadows.
Not my words, btw.

67
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 23, 2014, 12:31:49 AM »
Does make you wonder though, if these end up being the final specs, why didn't they bang out a 7D replacement right after the 70D was announced? Why did we have to wait (still waiting) for a 2fps bump from the previous model and what seems like the exact same sensor from the 70D?

+1000

Quote
But will it still be awesome in 5 years time??  ???

Nope. In fact, the notion that the 70D is the best that we'll see from Canon
in the next 5 years in terms of 1.6x image quality is quite ... sobering.

I thought that they would do better.

68
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 22, 2014, 11:32:00 PM »
Details about the sensor are lacking.  Great marketing buzz terms but does the sensor have significantly better DR (vs 70D and 5DM3).

The 70D is at 13 stops. There isn't room for "significantly better" DR with a 14-bit ADC.

Except that the 7D has 11 stops of DR, not 13 stops.
The D7100 and the Exmor sensors have 13 stops of DR.

Canon is still stuck at 11, as they use off-sensor A/D conversion (unlike the Exmors).
The hope was that the 7DII would be the first camera with on-sensor ADC - but this seems unlikely at this time.

Well, all we have is a rumor at this time.
Still, the fact that a 20mp sensor is rumored (as on the 70D) doesn't bode well.
Most likely the same sensor will be used. Likely with some tweaks, of course, but nothing of significance.


69
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 22, 2014, 10:18:25 PM »
It certainly sounds good and yet if it doesn't do more than just give a 70D sensor without AA (and maybe it does do more) and no 4k it seems like it's something they could've produced as is some time ago already.

my first thoughts exactly.

where are the video features that are hyped for years?

does the 20.2 MP 70D sensor replaces the 18MP sensor now for the next 5 years?

+1000

If the 7DII sensor is a tweaked/re-purposed 70D sensor, I'd be very disappointed.

There's no point in a 7DII, IMO, if image quality is only marginally improved vs the 7D - and that's exactly the case with the 70D sensor.
Is this really the best that Canon will have in the next 3-5 years for APS-C image quality ??

Well, I have a 70D already, so I guess I'm all set then.
Bummer.

70
Canon General / Re: A Rundown of EOS 7D Mark II Information
« on: August 17, 2014, 08:23:46 PM »
But Canon hasn't updated their sensors since 1969 and Sonikon sensors get 9,001 more stops of dynamic range and some say if the 7D mkII sensor isn't revolutionary Canon will die!

Or so I read in a forum on the Internet last Thursday  ;)

Well, that's absolutely true.
 8)

71
Canon General / Re: A Rundown of EOS 7D Mark II Information
« on: August 17, 2014, 02:41:33 AM »
... just trying to illustrate for those who insist DxO DR measurements have any bearing on reality.

Well, as LetTheRightLensIn said, it DOES have a bearing on reality.
You get cleaner shadows, which does contribute to better photographic DR as well.

72
EOS Bodies / Re: 5D3 No Longer in Production
« on: August 17, 2014, 02:33:37 AM »
While they were looking it up they pointed out that their system indicated Canon is discontinued.

It wouldn't be all that surprising if a high-resolution 5DIV is announced at Photokina next month.
But I'd be surprised if the 5DIII is already discontinued.
I'd fully expect that the 5DIII will continue selling alongside the 5DIV at least for a while.

73
Canon General / Re: A Rundown of EOS 7D Mark II Information
« on: August 17, 2014, 02:22:26 AM »
I think we'll see a toned down new tech and then a relatively quick upgrade to the full-frame bodies with the full fledged new tech.

Yup. If a 7DII is announced (the 5DIV is also a possibility, mind you), it will at best have the ISO of the 5DII.
So, the 6D and 5DIII will still remain better.
The new tech should bring more substantial DR improvements, though.

And like I said, don't rule out the possibility of a high-resolution 5DIV at Photokina.

74
Canon General / Re: A Rundown of EOS 7D Mark II Information
« on: August 17, 2014, 02:13:52 AM »
By downsizing, you are lowering the noise floor - and voila, DR gets improved too.

In practice, you will see this as cleaner shadows in the downsized image.
So, downsizing has practical value too; it's not just a synthetic measure that DxO uses
(even though DxO's normalized DR is in fact synthetic).

75
Canon General / Re: A Rundown of EOS 7D Mark II Information
« on: August 17, 2014, 02:07:46 AM »
... Clipped shadows and highlights do not magically reveal detail because the noise level went down. There is no detail to reveal at that point.

DxO's definition of dynamic range is the definition some guy looking at an oscilloscope might come up with if he had never touched a camera. It is not photographic dynamic range.

You are both right and wrong at the same time  ???.

Yes, downsizing does nothing for clipped shadows and highlights.

OTOH, though, the one and only definition of DR in signal processing is basically the ratio of max signal vs noise floor.
By downsizing, you are lowering the noise floor - and voila, DR gets improved too.
That's per the one and only definition of DR, that is 8).
Clipped shadows and highlights remain clipped. 


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