December 18, 2014, 07:05:36 PM

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Messages - Don Haines

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1
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: Today at 10:22:02 AM »
Thank you very much for the links (especially the first two).

I have found the following interesting link:

http://www.canonwatch.com/eos-5d-mark-iii-hacked-anti-aliasing-filter-removed-more-sharpness/

Wow - what a horrid test.  They lighting is entirely different between the two shots.

+1

The exposure is different, the two shots are not framed the same and there is a huge difference in how clear the air is...

nothing to see here.... move along.... move along....

2


This is all beside the point anyway, as all it takes is ONE step, or even to stand up or start standing up, and your target could flee. Birds of the heron family in particular, for example, are extremely skittish birds. If you manage to get close enough to get a decent shot at all, then smaller pixels are going to be a bigger friend to you than getting closer. I can't count how many times just seeing my head barely rise over the top of a ridge was enough to make every heron and egret in the area fly off. Hawks are similar...they can be perfectly content with you sitting there watching them if your not moving. The moment you stand up, they'll leap off their perch and fly right over your head! :P (I've had this happen a few times.) Deer are content to get right up in your face so long as your sitting on the ground...stand up, they'll dance around and huff a few times, then wander off. Outside of wearing a ghillie suit, even in camo deer will spot me. If I stand up, they at the very least stand rigid and take notice. Start moving towards them, and they will often bolt.

It's not necessarily always as easy as taking a few steps closer to your target.

+1

I have a startling inability to walk on water so zooming with my feet rarely works.....

3
EOS Bodies - For Stills / Re: Possibly ok after dropped?
« on: Today at 09:52:06 AM »
The worst failure is not a catastrophic failure, it is subtle damage.

With a catastrophic failure , you know it, stop using the camera, and grab a backup.... With a subtle failure you go out and shoot an entire event, come home, and find that the focus is a bit off on every single picture and you have garbage.

Can you risk it? I'd send it back to be checked.


So you have been there and done that, too?
Did it in my daughter's wedding. Flash just didn't.
Luckily there was the Midnight Sun but still I felt like an idiot.

Been there, done that....a dropped lens...

There was a diagonal line through the center of the frame that was in focus... everything under it and over it was out of focus.... when I checked in the field by zooming in to the center in live view, it looked good, but when I got home and looked on the monitor, everything was garbage....

BTW, anyone want to buy an 18-200 not-quite-so superzoom?

4
Animal Kingdom / Re: Red squirrels
« on: December 17, 2014, 10:34:49 PM »
...... you can't make a bird feeder flying squirrel proof....

Too true...


LOVE IT!

Mine just glide down from an 80 foot oak tree that's about 30 feet away.....

5
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 10:11:47 PM »
Some people are excited, some are denouncing this. One thing is for certain: this is a huge buzz that will not just affect Canon shooters but shake up the market for other brands as well. Studio/landscape shooters will be flocking to this 50MP body if all goes well, and suddenly Nikon and Sony will have to have something like this.
+1

I think we all knew it was coming.... it was just a matter of time. With Canon being so conservative, it means waiting until they can do it right....

Ten years ago we were at 6 or 8 megapixels and high ISO meant 3200.... Now look at the 7D2 or the 1DX... they are a LOT closer to any new 50 megapixel camera that the cameras of 10 years ago.... probably 95 percent of the way there.... although it sounds like a big deal, going from a 7D2 to a 50 megapixel FF camera is really just a small increment... just a matter of scaling a sensor yet using the same tried and true geometry.

6
Animal Kingdom / Re: Red squirrels
« on: December 17, 2014, 09:44:46 PM »
those are really nice shots, the red squirrels we have here in the u.s. don't have those comical ears. they look more annoyed than suprised but they are still entertaining to shoot.

I had this (http://www.canonrumors.com/forum/index.php?topic=12203.msg262313#msg262313) posted last year. I was also guessing about the long tufts then in March, but in discussing it we came to the conclusion that it's part of the winter coat.

From the linked thread:

... a Red squirrel (Sciurus vulgaris)

The American red squirrel is a different genus and species: Tamiasciurus hudsonicus.  I haven't seen ear tufts like that here, in any season.

*nods* Indeed so. From the looks of it Mario and I have the same variant in Belgium and here in Sweden. Met a couple from New York who were here in August, and they wondered why I was so interested in the squirrels here. To them they were more of a "pest", and I think that goes for both the grey and the red squirrels. Ours (the red squirrel) have a slightly better reputation and behaviour, and it wins the sexy ear tuft award any winter.
I have red, black, grey, and flying squirrels here...... you can't make a bird feeder flying squirrel proof....

7
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 09:35:49 PM »

A Canon sensor with the same technology 7D Mark II, but "stretched" up to 50 megapixel, would get much better score when DXO down convert to 8 megapixel, and the theoretical DR would overcome any camera that Canon has released to date.

nope, that's not how DR from Canon sensors scales, it's about the same at any scale
I don't think he is talking about real scaling..... he specifically said DXO down convert, which increases DR on non-Canon sensors and decreases it with Canon sensors :)

8
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 08:42:45 PM »

9
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 05:30:15 PM »

Increased resolution causes increased DR?   ???

It does if you believe in DXO and that you can "normalize" photos....

Take a 32 megapixel image shot with 12 stops of DR

Normalize it to 16Mpixels and 13 stops...
or 8Mpixels and 14 stops...

Then you say how much better it is than another camera which only has a native DR of 12 1/2 stops....

Once you can do that, you are ready to buy snake oil from DXO...

10
EOS Bodies - For Stills / Re: Possibly ok after dropped?
« on: December 17, 2014, 05:13:55 PM »
The worst failure is not a catastrophic failure, it is subtle damage.

With a catastrophic failure , you know it, stop using the camera, and grab a backup.... With a subtle failure you go out and shoot an entire event, come home, and find that the focus is a bit off on every single picture and you have garbage.

Can you risk it? I'd send it back to be checked.

11
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 03:23:07 PM »

Ask yourself this question.  If an AA filter did nothing but decrease image quality, why would camera makes put it into a camera thereby costing themselves money and buying nothing but lower image quality rankings?

The answer is simple - they don't.  An expensive camera like the 7DII (which has the same size pixels as a hypothetical 50MP full-frame camera) has an AA filter because it is necessary to get the best possible image quality.

OK Lee..... this is your last warning about using common sense and logic in an emotional argument :)

and seriously, I agree!

12
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 03:21:01 PM »
I see no point in the 'Do we need so many megapixels?' debate.

On a related note, I remember when 3 megapixels was high megapixel and people slammed it because no display could show that many pixels.....

13
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 01:48:40 PM »
Well for me... I have an SL1 on my belt, a 7D2 for sports/wildlife/BIF and a 5D3 for landscapes/portraits/low light and everything else.... not clear to me why I would buy a 50MP camera (just landscapes???)

Some of my buddies that shoot the Nikon have complained about their 36MP camera in that their Computer bogs down with so much info (think Raw file size) ... almost all have had to then go out and buy bigger/faster computers for PP and storage!  Something else to consider! :P

Everyone said that would happen when the D800 was announced and sure enough, it happened.  But people used it and said "this is worth getting a faster computer and a bigger hard drive."  Nikon of course now has the FrankeNikon 24 MP D750 which is being viewed as a pretty well put together FF rig without the burden of the huge files.  As inventory and obsolescence-insane having many non-gripped FF bodies is, it lets Nikon scratch some different userbases itches really hard -- one high resolution monster, one higher burst with a tilty/flippy screen, one more vanilla for cost, perhaps a nearly-dedicated video rig like the a7S someday, etc.

But back to your point -- I think if the sensor is worth it (interpret that as you will), people will cope and get the hardware they need to manage it.  I imagine this same discussion happened when Canon offered 21.1 MP bodies years ago, right?

- A
I agree....

Spending $3000 to $4000 on a camera and not spending $200 on a hard drive seems like an unlikely pairing....

14
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 01:14:55 PM »
Still there is no definite proof for Canon using new fab process for APS-C/FF. And using new process will (probably) make 46Mpix FF sensor even more expensive…

There is some evidence that something has changed.  The sensor in the 7DII has about 10% higher QE and about an order of magnitude lower dark current than any previous Canon sensor.
EXACTLY!!!!
Finer lithography is the most likely reason for the increased quantum efficiency...
your 4 micron pixels with a 500nm process has 76 percent usable area...
your 4 micron pixels with a 180nm process and DPAF has 87 percent usable area...

There's your 10 percent gain....

Finer lithography means less heat and there's your improvement in dark current ( or at least some of it)

15
EOS Bodies / Re: High Megapixel Camera Coming in 2015 [CR3]
« on: December 17, 2014, 11:20:51 AM »

No, it will be "pure" (no DPAF) high res sensor body. Possibly build around Sony sensor (not sure).


And you know this how????

how do you know it won't be a FF sized 7D2? Canon is very good at keeping secrets, yet those of us on rumours group always seem to know the answers.....
Guess only. Canon is probably struggling a little bit with Dual Pixel at the moment ( example: no DPAF 1080/60 in 7d2). One will need processing power comparable to 6 x DIGiC 6 inside high res FF body. And manufacturing high res DPAF sensor also won't be cheap.
Well, I do not underestimate Canon capabilities. They are surely able to create such monster. But who is gonna pay for that?
My guesses have been "somewhat less than accurate" :) It is very hard to know where a secretive company is going....

They appear to be moving away from the old 500nm production fab, so any new sensor would presumably be on the 180nm run, possibly the same pixel size as the 7D2... they seem to have the bugs out... I just can't see them designing a new "normal" sensor, but that's my guess, and as I said above, my guesses have been somewhat less than accurate.

I wonder how long before GPU style hardware is going to emerge in the Canon (and Sony, Nikon, etc) bodies... more computing power per watt and with a CPU/GPU computing architecture one could use the appropriate combination of algorithms and hardware to drastically speed things up... your 6Xdigic6 computing power could be easily obtained and possibly at lower power..... oh well, time will tell....

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