Canon 5D Mark IV -- Time to Discuss!

aladyforty wrote in post #18114463
same here but my wallet is a tad empty, had considered selling off my 7DII (which I like a lot) and my 5DIII for this camera but Id still need to add cash and may regret selling the crop camera. Im still very happy with the 5DIII so will just have to wait a bit

Yeah. Sold my 5D3 and a couple of flashes. I'll do OK for cash if I sell the 7D2 but I'm worrying about regretting it.

David Arbogast wrote in post #18119298
Hope he's doing it wrong cause that feature's looking really useless. Isn't DPR supposed to add another stop of DR in the highlights?

In my apparently continuing trend to make fun of Tony, ..

I mean Damn, he even managed to take terrible photos of Chelsea!
How does that even happen?!


To be more serious, how many times has Nikon, Canon et al introduced a new tool for our kit that is poopooed on day one by half of us?

I don't like the little eraser head to move AF points,
I don't like Live view
I don't like tilting screens
I don't see a need for 14 bit RAW
I don't understand who needs all that D.R.
I don't understand who can ever use more than 8 mega pixels...
If you want more megapixels, shoot panorama
Who has time to shoot pano's?
Who uses HDR?

Tools are not all made for every task. Some will use it, some won't.

Anyway, time will tell for dual pixel raw. Some seem to be reporting good things. Of course Digital Photography review like's it, it's their NAME SAKE! (D.P.R.)

I guarantee you this, If Canon does not include Dual Pixel Raw in the future, Canon will be accused of "Crippling" the hardware with weak firmware.

David Arbogast wrote in post #18119298
Hope he's doing it wrong cause that feature's looking really useless. Isn't DPR supposed to add another stop of DR in the highlights?

The highlight recovery stuff is, as far as I understand, still an experimental suggestion by Iliah Borg (RawDigger):

http://www.rawdigger.c​om …mode-highlights-are-there
http://www.rawdigger.c​om …non-dual-pixel-technology

The gist I get is that they're trying to put the information out there in the hope that people writing the raw decoders will make use of it. Though if you could dump 16bit TIFF/PSD files of both frames you could do it manually.

I blended the sky back in from the street scene above (and it looked OK), but only from using the JPEGs. The Auxiliary subframe pushed one stop in Adobe Camera Raw did end up brighter than the Main subframe, which is "wrong" though. Whether that's just because I was using the generated JPEGs I don't know.

What I haven't yet seen is proof that blending the top stop of highlights from the Auxilary subframe into a deliberately 1-stop-overexposed Main subframe will actually result in more DR.

so I read elsewhere that In a shop in Romania some guys already bought 5D4 yesterday...how come? thought they had a global release on the same day

aladyforty wrote in post #18119375
so I read elsewhere that In a shop in Romania some guys already bought 5D4 yesterday...how come? thought they had a global release on the same day

Canon can't prevent small shops from violating the release date and selling early. All they can do is probably take them off the list for future releases as a slap on the wrist. By now, most stores already have the camera in their warehouses.

David Arbogast wrote in post #18119298
Hope he's doing it wrong cause that feature's looking really useless. Isn't DPR supposed to add another stop of DR in the highlights?

No, officially it's "supposed" to offer sharpening/perspective​/bokeh shift. That's what Canon is marketing it for. The supposed DR advantages are theoretical only. As for the usefulness of the dual pixel RAW, it seems to be all over the place as to its effectiveness. Some reviews have said it's really apparent at smaller FLs and focus distances, while others claim great differences at larger FLs and focusing distances. I'm expecting a better consensus from the early adopters on this thread Talley, you definitely owe us your impressions of the cool new features when you get your hands on your copy

davesrose wrote in post #18119425
No, officially it's "supposed" to offer sharpening/perspective​/bokeh shift. That's what Canon is marketing it for. The supposed DR advantages are theoretical only. As for the usefulness of the dual pixel RAW, it seems to be all over the place as to its effectiveness. Some reviews have said it's really apparent at smaller FLs and focus distances, while others claim great differences at larger FLs and focusing distances. I'm expecting a better consensus from the early adopters on this thread Talley, you definitely owe us your impressions of the cool new features when you get your hands on your copy

It looks like the theory is being tested by the theortical types;

http://www.imaging-resource.com …w-tech-can-yield-an-addit


And the technique of using different sensitivity (sized) photo sites on one Sensor for more DR, and protected highlights is not new. It was pioneered by Fuji over a decade ago.

https://www.dpreview.c​om/reviews/fujifilms3p​ro

2005: "The S3 Pro utilizes Fujifilm's "extended dynamic range" SuperCCD SR sensor which features two photodiodes at each photosite (a single 'input pixel'). The 'S' pixel has normal sensitivity and captures the same range of light as a conventional CCD photosite, the 'R' pixel is smaller and has a lower sensitivity and is designed to capture detail above the saturation point of the 'S' pixel, the camera can then combine the information from the 'S' and 'R' pixels to produce an extended dynamic range and avoid the loss of detail due to over-exposure."

2003: https://www.dpreview.c​om …6851251325/fuji​superccdsr

Canon had a different thing in mind when they started to make dual pixel sensors (AF in live view) but if the RAW data is made available from the new "other half" as it is in the 5D4, then 13 years later Canon finally caught on to Fuji's idea even if they never meant to.

Obviously the hardware implementation is a different, but I can't see to doubt the end results Iliah Borg has posted.

well I'll be putting it through it's paces as long as timing works out. astros game friday, softball game saturday, portrait sunday, sons first two baseball games monday and tuesday...

...but first I'll shoot my coffee cup.... in SERVO mode woot woot. Track that Canon!

Indeed....I think it's funny the article claims 72mb is a lofty size for the full RAW. The average for my friend's D810 is also 70. Canon's dual pixels aren't the same technology as Fuji's, and are being processed differently.....so it's a whole new set of patents and later hacks that'll be developed (no punn intended)

CyberDyneSystems wrote in post #18119434
It looks like the theory is being tested by the theortical types;

http://www.imaging-resource.com …w-tech-can-yield-an-addit

And the technique of using different sensitivity (sized) photo sites on one Sensor for more DR, and protected highlights is not new. It was pioneered by Fuji over a decade ago.

https://www.dpreview.c​om/reviews/fujifilms3p​ro

2005: "The S3 Pro utilizes Fujifilm's "extended dynamic range" SuperCCD SR sensor which features two photodiodes at each photosite (a single 'input pixel'). The 'S' pixel has normal sensitivity and captures the same range of light as a conventional CCD photosite, the 'R' pixel is smaller and has a lower sensitivity and is designed to capture detail above the saturation point of the 'S' pixel, the camera can then combine the information from the 'S' and 'R' pixels to produce an extended dynamic range and avoid the loss of detail due to over-exposure."

2003: https://www.dpreview.c​om …6851251325/fuji​superccdsr

Maybe the 10yr patent ran out so this is why Canon is now doing it?

My biggest question is...

...why hasn't Nikon done anything dual pixel sensors yet? Or should I say Sony? Maybe they have and if so I'm sorry I'm just not up to speed on other mfg technologies other than Fuji.

davesrose wrote in post #18119441
Indeed....I think it's funny the article claims 72mb is a lofty size for the full RAW. The average for my friend's D810 is also 70.

I Know, i was just re-reading that. Imagine in 2005 dealing with 70MB RAW files!?

16 bit zero compression that is, and only 12MP data. I was shooting the 1D2 with 8MB RAW files and thought that was HUGE!

Talley wrote in post #18119444
My biggest question is...

...why hasn't Nikon done anything dual pixel sensors yet? Or should I say Sony? Maybe they have and if so I'm sorry I'm just not up to speed on other mfg technologies other than Fuji.

No Nikon DSLR is to this date using any dual pixel type sensor.

The next version of that Fuji was THE DR king in 2007, even in the DARKS!

CyberDyneSystems wrote in post #18119464
The next version of that Fuji was THE DR king in 2007, even in the DARKS!

https://www.dpreview.c​om/reviews/fujifilms5p​ro/18

So then whatever happened to Fuji then?