EOS 7D Mark II Spec List Surfaces [CR1]

[Lee Jay]

You don't need zero lag, you just need less lag than the user can perceive.

Nope. This is a myth. Any lag, at all, reduces closed-loop tracking bandwidth and therefore makes it harder to track subjects. I tried a difficult tracking situation with a camera with 25ms of lag and it was entirely impossible, while I did it pretty easily with an SLR.

Zero power usage is a bit misleading too... the question should be how does the power usage of the EVF compare to the power usage of the shutter/mirror motors.

The mirror takes no power at all for viewfinder use. I often use the viewfinder for hours and hours, taking only 1000-2000 shots during that time. An EVF will generally deplete the battery in an hour of viewfinder use or so, even if you take no pictures.

 

[Lichtgestalt]

The mirror takes no power at all for viewfinder use. I often use the viewfinder for hours and hours, taking only 1000-2000 shots during that time. An EVF will generally deplete the battery in an hour of viewfinder use or so, even if you take no pictures.

that´s a good point.
i also look through the viewfinder for hours, with some breaks to relax my eyes, when doing wildlife shots.

even when the camera has a sensor that only activates the EVF when your eye is near the EVF it would not help much in such a case.

 

[Chuck Alaimo]

This is pure speculation though...this is a rumor of a spec list, nothing confirmed....but you somehow feel that this sensor will be that much better than the mk3's?

Why is "dual pixel" speculation?

the speculation part wasn't referring to dual pixel specifially...it was more in general that this is a cr1 rumor, so it can only be viewed as speculation.

 

[mkabi]

You can't compare 4K video to 5K stills produced by cameras like the 1DX.

8Mb... Please.... thats so one dimensional for you to think of it that way.
8Mb is a single frame. Movie quality is 24 frames per second.

Thats...192Mb per second
11.52Gb per minute
692.2Gb per hour

You want slow-motion? 60 fps or more.
Imagine if the RED can output 300fps at 4K...

 

[traveller]

You don't need zero lag, you just need less lag than the user can perceive.

Nope. This is a myth. Any lag, at all, reduces closed-loop tracking bandwidth and therefore makes it harder to track subjects. I tried a difficult tracking situation with a camera with 25ms of lag and it was entirely impossible, while I did it pretty easily with an SLR.

How do video photographers cope with shooting action?

Let me guess, you own vinyl, right?

 

[Don Haines]

You don't need zero lag, you just need less lag than the user can perceive.

Nope. This is a myth. Any lag, at all, reduces closed-loop tracking bandwidth and therefore makes it harder to track subjects. I tried a difficult tracking situation with a camera with 25ms of lag and it was entirely impossible, while I did it pretty easily with an SLR.

Zero power usage is a bit misleading too... the question should be how does the power usage of the EVF compare to the power usage of the shutter/mirror motors.

The mirror takes no power at all for viewfinder use. I often use the viewfinder for hours and hours, taking only 1000-2000 shots during that time. An EVF will generally deplete the battery in an hour of viewfinder use or so, even if you take no pictures.

You must have a bugger of a time dealing with the delay in optical viewfinders caused buy the photons moving at only the speed of light.....

What I said is that the delay just has to be less than the user can perceive.... I am told the number is 20 milliseconds, even if we said it is 1 millisecond, all you have to be is faster than that.

The human body is incredibly slow at processing information.... our nerves conduct signals slowly.... our brains, although massively parallel, calculate slowly. Going faster than a human can perceive is a trivial task....

 

[mkabi]

How many MP is 4k?

2K video is 1920x1080
4K video is 3840x2160
8K video is 7680x4320

When I first saw 4K video (about 4 years ago) the quality of it just blew me away... even though we had to display it on a 2x2 matrix of monitors... 8K video is even better, you even have sharp detail right up close to the displays... but at this point we seem to be hitting the law of diminishing returns. Personally I would say 4K video is twice as good as 2K, but there is no way I would say 8K video is twice as good as 4K.... 4K seems to be the sweet spot...

Affordable cameras with 4K video? Keep in mind that a GoPro shoots 4K video at 15fps and stores it on a micro-sd card.... I wonder what a pair of Digic5+ can do....

lol... you will know why I laughed in a minute.
yes... the gopro shoots 4K @ 15fps...

But! the 1DX can shoot 5K @ 12fps and its RAW baby!

 

[ajfotofilmagem]

You don't need zero lag, you just need less lag than the user can perceive.

Nope. This is a myth. Any lag, at all, reduces closed-loop tracking bandwidth and therefore makes it harder to track subjects. I tried a difficult tracking situation with a camera with 25ms of lag and it was entirely impossible, while I did it pretty easily with an SLR.

How do video photographers cope with shooting action?

Let me guess, you own vinyl, right?

Do not compare apples to pineapples... 8) A video frame frozen has much lower detailing than a JPEG photo with the same resolution. Try to capture a frame of video FULL HD and print on photo paper, and will see a 1 megapixel JPEG image will be waaaay better though with half the amount of pixel.

 

[Don Haines]

The mirror takes no power at all for viewfinder use. I often use the viewfinder for hours and hours, taking only 1000-2000 shots during that time. An EVF will generally deplete the battery in an hour of viewfinder use or so, even if you take no pictures.

that´s a good point.
i also look through the viewfinder for hours, with some breaks to relax my eyes, when doing wildlife shots.

even when the camera has a sensor that only activates the EVF when your eye is near the EVF it would not help much in such a case.

Every time a mirror moves or a shutter moves, it takes energy. You have to compare the total energy used..... you can not just look at energy use under certain conditions.... that would be like me saying that an EVF uses less energy because when you take a picture, for that 1/100th of a second the mirror and shutter use a thousand times more energy...

One has a pattern of constant drain at a slow rate, the other has a pattern of heavy drain for very short and infrequent intervals. The question of which is worse in total depends on the usage pattern. If you are firing pictures off quickly the mirror/shutter will be the least efficient but if you are taking time it will be the most efficient. I think that in general the mirror/shutter will be the most efficient, but the answer is not an absolute.

 

[Lee Jay]

You don't need zero lag, you just need less lag than the user can perceive.

Nope. This is a myth. Any lag, at all, reduces closed-loop tracking bandwidth and therefore makes it harder to track subjects. I tried a difficult tracking situation with a camera with 25ms of lag and it was entirely impossible, while I did it pretty easily with an SLR.

How do video photographers cope with shooting action?

Loose framing.

 

[Lee Jay]

What I said is that the delay just has to be less than the user can perceive....

And what I said is that that is false. And it is.

 

[Don Haines]

How many MP is 4k?

2K video is 1920x1080
4K video is 3840x2160
8K video is 7680x4320

When I first saw 4K video (about 4 years ago) the quality of it just blew me away... even though we had to display it on a 2x2 matrix of monitors... 8K video is even better, you even have sharp detail right up close to the displays... but at this point we seem to be hitting the law of diminishing returns. Personally I would say 4K video is twice as good as 2K, but there is no way I would say 8K video is twice as good as 4K.... 4K seems to be the sweet spot...

Affordable cameras with 4K video? Keep in mind that a GoPro shoots 4K video at 15fps and stores it on a micro-sd card.... I wonder what a pair of Digic5+ can do....

lol... you will know why I laughed in a minute.
yes... the gopro shoots 4K @ 15fps...

But! the 1DX can shoot 5K @ 12fps and its RAW baby!

I'm laughing too.... the GoPro video is HEAVILY! compressed.... I wonder what a pair of Digic5+ can do, particularly to a fast storage card...

 

[Don Haines]

What I said is that the delay just has to be less than the user can perceive....

And what I said is that that is false. And it is.

Can you perceive zero?

 

[Lee Jay]

What I said is that the delay just has to be less than the user can perceive....

And what I said is that that is false. And it is.

Can you perceive zero?

Your perception and your reaction time are both irrelevant to the topic of tracking.

 

[Don Haines]

What I said is that the delay just has to be less than the user can perceive....

And what I said is that that is false. And it is.

Can you perceive zero?

Your perception and your reaction time are both irrelevant to the topic of tracking.

As someone who deals with tracking satellites from violently pitching and vibrating platforms, let me say that reaction time and perception are everything....

 

[steliosk]

20MP or 24MP sensor with Dual Pixel CMOS AF
- borrowed from 70D

Auto-Focus system similar to the EOS 5D Mark III (61 points), possibly the same as 5D3
- borrowed from 5D3

Single card slot
- LOL

WiFi & GPS
- borrowed from 6D

Innovative video features
- probably filters and effects borrowed from 700D

Price around $2000
- at least

Very good ISO performance
- compared to 7D but same with 70D


typical canon
nothing new
they didn't either bother to put a dual slot in the camera.


hope to prove i'm wrong.. i'd be glad if i'm wrong.

 

[Lee Jay]

As someone who deals with tracking satellites from violently pitching and vibrating platforms, let me say that reaction time and perception are everything....

You're equating control bandwidth and input latency with human reaction time. They are totally different.

Human reaction time is around 200ms. So how is it possible to, say, hit a golf ball when you need to make dozens of adjustments during a swing that lasts only about twice that long?

 

[Don Haines]

As someone who deals with tracking satellites from violently pitching and vibrating platforms, let me say that reaction time and perception are everything....

You're equating control bandwidth and input latency with human reaction time. They are totally different.

Human reaction time is around 200ms. So how is it possible to, say, hit a golf ball when you need to make dozens of adjustments during a swing that lasts only about twice that long?

But I am smart enough to know when a discussion is pointless.... goodnight!

 

[Woody]

Price around $2000
- at least

typical canon
nothing new
they didn't either bother to put a dual slot in the camera.

+1

Highly disappointing if this is true. The price tag is too high, given the plunging interests in digital cameras these days.

We'll see how the mythical Nikon D400 stacks up. I am willing to bet it'll have some breathtaking technologies. Let's wait for 2014.

 

[x-vision]

Scepticism aside, I wonder how Canon will be able to place a 7D MkII in its current product line?

+1

With FF cameras now selling for $1700-2000, I just don't see Canon coming up with a 7DII.
There's just no place in the lineup for it.