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Messages - x-vision

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Wise words as usual David. Hope you have a nice summer as we have.


The big unknown at this time is whether Canon will use the same sensor in the 7DII or not.

If the 7DII has the same sensor as the 70D, Canon will have a hard time, IMO, convincing people to spend more on the 7DII.
The 70D specs are quite good already, so why bother?

It would be a completely different story, though, if the 7DII has better image quality than the 70D.

So, it makes more sense for Canon to put a better sensor in the 7DII - but who knows what they will actually do.

EOS Bodies / Re: Why can't the 70D be 40MP in regular mode?
« on: July 06, 2013, 12:55:45 PM »
The two "half-pixels" share the same front-lens so they probe the same spatial info and therefore are not increasing the spatial resolution. In order to double e.g. the horizonal resolution they would have to double the little frontlenses too but then they could not use it in the same way for phase contrast autofocus...

That makes sense.

Moving on, can you tell me about these little lenses? Are there literally 20million little tiny lenses?

Yes, there are.

And as already noted, these 20 million tiny lenses determine the image resolution - even though there's a 40mp sensor underneath.

The thing is, this 40mp sensor would have likely had quite poor image quality if it wasn't doing the 2->1 merging of signals.

EOS Bodies / Re: 70D or 6D
« on: July 05, 2013, 09:46:21 PM »
I'm looking at either the 6D or the 70D when it comes out. 

Canon made the choice between the 70D and 6D quite difficult, IMO.

Without a doubt, the 70D is the more well-rounded and versatile camera. 
The 6D is a one trick pony: it has a FF sensor and ... that's it.

Of course the 6D will be the better camera in terms of image quality.
Canon stated themselves that at the RAW level, the 70D ISO performance will be 'on par' with that of the 60D.
The 6D has about a ~2 ISO stops advantage over the 60D, which it will obviously keep over the 70D as well.

So, if you decide to go with the 6D, you are obviously going to get better image quality.
But this will cost you more - and at the same time you'll be losing some fun and useful features.

Like I said, Canon made this a difficult choice.
Good luck with your decision.

EOS Bodies / Re: EOS 70D Next to Be Announced
« on: July 03, 2013, 03:10:38 PM »
its a new sensor but  probably build with the same design as all other APS , 24x36mm  sensors from Canon since 2004

We can't be sure.

At the CMOS/electronics level, the 70D sensor is a 40mp sensor, basically.
That seems way too many for Canon's old 500nm process - when even 18mp was pushing it.

I guess we'll find out when Chipworks puts the 70D sensor under the microscope.

EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 03, 2013, 01:40:54 PM »
IMO the "groundbreaking" aspect of the 7D2 will be an EVF.

Canon never said groundbreaking, actually.
In a January interview, Canon's camera boss said that 7DII will evolve in new territory.
English in not my first language but I sense a difference between 'evolve' and 'groundbreaking'  8).

The thing to consider is that if the 7DII just gets the new 70D sensor, it has already evolved in new territory - due to the expended AF system abilities for video.

My hope is that the 70D will use a sensor with better ISO capabilities than the 70D - even if this means reducing the number of MPs compared to the 70D.

EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 05:00:02 PM »
Yes, I know what you are saying.
The 70D appears to have the same dedicated AF processor as the 7D.

What is your evidence for that statement?  It's not mentioned in the video you linked which you earlier claimed said the 70D has the 7D's dedicated AF sensor (which it does). 

Sorry, I must have quoted the wrong source.

Because the dedicated AF processor is not advertised, I also assumed that the 70D doesn't have it.
But then it popped up in one the technical previews/articles that I've been reading since last night.
Right now I don't actually know which one was that. I thought it was in the video that I linked.

EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 04:15:17 PM »
According to <this video> the 70D has the same dedicated AF sensor as the 7D.

The dedicated AF sensor, yes.  But we're talking about the dedicated AF processor, a separate chip on the logic board that processes the data from the AF sensor.  The 7D was the first body outside of the 1-series to have a separate AF processor, the 5DIII has one, as well.

Yes, I know what you are saying.
The 70D appears to have the same dedicated AF processor as the 7D.

EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 03:56:41 PM »
No mention of a dedicated AF processor, just like 7D/5DIII have. It's what it makes their AF exceptional. 70D "only" has a Digic5+.

I have this feeling the AF will not on pair with the 7D's.
According to this preview, the 70D has the same dedicated AF sensor as the 7D:

EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 03:53:49 PM »
I think the most interesting thing about this camera is what we now can expect from the 7DII and the other pro-grade bodies we are waiting for.

It's no point releasing an upgrade to the 7D, unless it has significant performance/feature improvements over the 70D. And if that happens, we should be in for some real treats when we approach the 5DIV, 3D, 1DXI etc.

The only problems I see are patience and funding ...  :P



EOS Bodies / Re: POLL: What will be the 70d's price tag?
« on: July 01, 2013, 03:13:08 AM »
$1200 would be fair, $1100 would be smart, and $1300+ would be dumb.

EOS Bodies / Re: Canon EOS 70D Spec List
« on: June 28, 2013, 02:46:06 PM »
I expect Canon will not be able to deliver a sensor+electronics matching the current Nikon D7100 sensor in terms of IQ. Not in resolution (20 vs. 24 MP) and probably even less so in DR across all ISO settings starting at base ISO nor in Hi-ISO Noise.

My prediction is that the 70D will lag behind the D7100 in terms of DR.
In terms of ISO/noise, however, the 70D should be able to match (and maybe even exceed) the D7100.

The D7100 got a high overall DxO score because of its high DR.
But if you look at the ISO/noise measurements, it's not all that good.

The 70D doesn't need to be much better than the current 18mp sensor to match the D7100 in ISO/noise.
Of course for DR it's pretty certain that D7100 will be a clear winner.

EOS Bodies / Re: Canon EOS 70D Spec List
« on: June 28, 2013, 02:34:13 PM »
What I find interesting is that the ISO range is the same as the T5i.... there really isn't much of a difference in size of pixels between  18 and 20 Mpixels.... I would have expected that if they had gone to a newer process that the ISO range would have exceeded the T5i, so my bet is the same technology as before for the sensor with further improvements to "live view" like we have seen on the last few lower-end releases.


I'm still expecting some improvement, though.
A 5DII-->6D type of improvement, where high ISOs (3200 and above) should be progressively cleaner compared to the 60D, for example.
We'll see.

Canon also said that it was to be the 7D2 that was the "game changer". That's when I would expect to see any signifianly better technology emerge.


It's only natural that new tech is introduced on higher-end bodies first.
Considering that Canon did a full refresh of their FF lineup last year, the 7DII is the best candidate right now for the new tech introduction.

PowerShot / Re: Canon France Denies Large Sensor Compacts
« on: June 28, 2013, 12:03:43 PM »
One more thing…

Heh. I bet it's Canon USA and their lawyers.
Not happy that CanonRumors basically pre-announced the 70D.
CanonRumors is doing free PR for Canon, basically, but I guess pre-announcements are not cool - although it makes us, readers, happy.
Great job on the flyer yesterday! Congrats.

Did I put you down? 

You called me and Neuro ignorant about the 6D AF system.
And you said that luciolepri is regurgitating stuff heard elsewhere.

So, yes, you are putting people down.

But let me tell you something:
Canon has publicly stated in interviews and in articles how they had to cut corners in order to achieve the 6D 'low' price.
In other words, they made a lot of compromises - and they publicly admitted making them.

Your precious 6D is far from perfect; in fact it's quite compromised. Canon admitted it themselves.

So, be angry at Canon for making those compromises.
Not at the people that are simply disapproving of (some of) them - and shared their disappointments in this thread.

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