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Messages - Don Haines

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226
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 11:24:05 PM »
...I started seeing this fundamentally mocking behavior.

Yep, it's just popping up all over the place!

I wish that all parties would try to be more civil and resist the urge to sink to the bottom. This forum is what we make of it....

and some advice from mom.... "Just because Timmy is an a**hole, that doesn't give you the right to be one". Keep it clean and respectful please....

227
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 10:47:04 PM »

* Stop arguing in this thread
* Do a Google search.
* Read and watch some of the many excellent tutorials out there.
* Download some HDR demo software.
* Go out and photograph some HDR scenes.


You might want to take a peek at the end of the "Beautiful sunsets" thread...
http://www.canonrumors.com/forum/index.php?topic=8105.500

228
EOS Bodies / Re: Do Sensors sell the Camera?
« on: August 25, 2014, 09:56:36 PM »
I fully expect Sony/Nikon cameras to have 15, if not 16, bit ADCs in 4 years time.

I am amazed that they don't have them already...

The 7D has a full well charge of 24,800. you need 15 bits to properly read that.... and in the last 5 years full well charges have increased, particularly with FF. Only having 14 bits is a choke point.

229
Landscape / Re: Beautiful sunsets
« on: August 25, 2014, 09:10:00 PM »


HDR merge, 5-frame, 2-stop separation.

Canon 5D III + EF 16-35mm f/2.8 L II @ 32mm
WOW!

230
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 08:12:18 PM »
So what are the engineering considerations involved in on-sensor ADC?
This is VERY! simplified, but here goes....

When you look at a 500 nanometer process and pixels that are 4000 nanometers square, your lithography is only capable of 64 (8x8) blocks to draw circuitry inside that pixel.... and don't forget that when you draw a line you need space on each side of it! If you consider that the pixel has a border, then that means that there are only 36 (6x6) blocks left... that means that you are starting your sensor design  with only 36/64 or 56 percent of your surface area usable.

And this is almost certainly the reason why Canon currently has the A/D circuitry on the external DIGIC chips.... there is not room on the sensor to do anything else.....

If you improved your lithography to 125 nanometers, then your pixel is made up of 1024 blocks (32x32) and after the border, you are left with 900 (30x30) blocks left to create your pixel. This means you are now starting your pixel design with 900/1024 or 88 percent of your surface area usable and it allows you to create far more complex circuitry.

Now go to 60 nanometers, then your pixel is made up of 4096 blocks (64x64) and after the border, you are left with 3844 (62x62) blocks left to create your pixel. This means you are now starting your pixel design with 3844/4096 or 94 percent of your surface area usable and it allows you to create even more complex circuitry.

We do not yet know the technology used on the 70D, but when you consider that if the 500 nanometer process was used, each half of the pixel would be 32 (4x8) blocks and after the border 12 (2X6) blocks, or 38 percent of the surface area usable.... and you would still have to find space to put in the more advanced electronics to handle DPAF.... that it is a certainty that the 500 nanometer process is not used here....

What this tells us is that Canon is in the process of moving to finer lithography... we just don't know how far they are going to go and what will be moved over from the Digic chips and what timeframe.... but it is happening!


231
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 07:15:21 PM »
So what are the engineering considerations involved in on-sensor ADC?
The big one is making the transistors small enough so that everything will fit.
The next big one is dealing with heat.... more heat gives you more noise....

Both considerations demand that Canon switches to a finer lithography..

232
EOS Bodies / Re: Do Sensors Make the Camera?
« on: August 25, 2014, 07:11:29 PM »
Saying that the sensor makes the camera is as silly as claiming that the engine makes the car....

Point in case.... my brother has a 1969 Dodge charger with a 650HP engine. I drive a Mazda3 with a 150HP engine..... his car has 4 times the engine mine does, yet if we took the two of them to the local track (a nice road track with lots of twists and curves) I could run away from him with ease...

You have to look at the entire package in the context of what you want to do... you can not fixate on a single component.

233
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 06:57:16 PM »
i'm pretty confident the 7D successor will deliver in AF and sport department, i just really hope it will also deliver some improvements in ISO department. Digic6 should bring something to the table, hoping for 2/3 - 1 stop ISO improvement over 70D.

Digic can't improve high ISO (unless you mean in cam jpgs and the NR algorithm)

I think the DIGIC chips do the A to D conversion.  If so, a better, lower noise conversion could help with high ISO performance.
You are correct.

A/D is done on the Digic chips and that is the reason for Canon's noise problems.

Much of the competition does the A/D on the sensor. It is better because:
On sensor A/D means no analog lines across the circuit board to pick up noise.....
On Sensor A/D can be done for an entire row or column at a time, and that means a thousand (or more) times the time to do it in, which leads to greater accuracy and less noise...

234
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 06:51:57 PM »
Well...to each is own, I guess. Me, I'm going to get vocal about Canon's crappy low ISO noise, and do everything I can to back up my claims with concrete, visual evidence...because, it's really freakin NASTY noise. STILL nasty...after all these years. And I think that needs to change (especially because Canon is still my preferred brand...I'd rather have a 5D IV with 50mp and 14 stops of DR than a D800.)

I see nothing wrong with jrista complaining about "Canon's crappy low ISO noise". It does not make him more or less of a fanboy, it just means that he isn't blind.


235
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 03:25:52 PM »
Fixed LCD, with no touch function.

I currently use a EOS 70D.  I like the articulating LCD and touch function (especially for choosing
a focus point during video recording).  Why would the 7DmII not have these features?

Don't believe it one way or the other until an official announcement is made. These rumours are just guesses...

236
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 03:23:22 PM »

it's amazing how some here think they know better than a company that literally spends billions in R&D per year.

+1

allow me to slightly change your statement:

it's amazing how, based on unsubstantiated rumours, some here think they know better than a company that literally spends billions in R&D per year.

It's also amazing how they can use the fact that Canon is one of the world's largest filer of patents to show that they are not innovative....

237
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 12:51:38 PM »
That is how Canon operates. Look at their product development over the last 11 years and you'll see the same minor increments from one model to the next. If you're looking for revolutionary development then you've bought into the wrong camera system/brand.

???

Except that 5DII was a sensational camera - touted and hailed for months before its release - and the best selling DSLR so far...

Before that the original 5D was the first ever affordable FF camera. With a class leading sensor.
Wouldn't the 5DII be the best selling FF DSLR? The T3I outsells it like crazy :)

238
For the last 4 years, people have been saying with great confidence that the 100-400 is about to be released.

Canon has said nothing.
Nobody has seen one in the field.
Nobody has hinted that they have one to test.

In other words, don't believe it until you see it......

239
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 09:32:41 AM »

Maybe I need to join some kind of self help group.

The self help group is a bad idea....

Bruce: "Hello, my name is Bruce and I shoot with a Nikon D810"
Carol: "Hello, my name is Carol and I shoot with a Sony 7R"
Peter: "Hello, my name is Peter and I shoot with an Olympus Om-D EM1"
Me: "Hello, my name is Don and I shoot with a Canon 60D"
All: <GASP>
Me: "I also have an SX-50"
All: <silent and incredulous stares>
Me: "Why are you looking at me that way?"
Nancy: "GRAB YOUR TORCHES AND PITCHFORKS! "

240
EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 25, 2014, 08:10:33 AM »
Three years ago I was in Narita Airport (on the way to Beijing), and I saw 8 Nikon cameras but only 3 Canon cameras.  So, Nikon has been ahead in Japan for at least three years.
interesting.....

I was at a craft show yesterday and saw three Nikons and only one Canon. It appears that Nikon has also captured the sheep and wool segment of the DSLR market.

I am sure that both of our observations are statistically significant :)

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