September 19, 2014, 12:02:21 AM

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Messages - jrista

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31
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 16, 2014, 09:49:33 PM »
Taking a hurried peak at a 7D2 RAW file, it seems like the gain vertical banding issue of the 7D may be entirely gone. Only took a very harried look though. It's hard to tell because the 7D2 has such a small black outer frame area in the RAW and I didn't have the program to check for the gain type in the mids and brights but it seems like it might be gone, none of the shots are close to lens cap shots, but there is a chance they got rid of all or nearly all of the offset banding at low ISO all together. So that is the very good and impressive news with possible both the 7D's weird vertical gain banding and the typical Canon offset dark shadow banding very low or gone, maybe.

The bad is that the random read noise still shows no improvements since 2007 whatsoever, as far as I can tell. It seems like it will be extremely close to the exact same DR as the 7D. The read noise might even be a touch higher than on the 7D. Not quite sure yet, didn't locate quite the proper 7D file or my old numbers. Without the banding, the effective usable DR should be higher though even though it seems like the engineering measured DR might be anywhere from a bit worse than the 7D to a trace better.

Good news on the banding front. Looking forward to a dark frame to see what's really what.

Not really surprising for the rest, though. It's a revamped 70D sensor, with improved DPAF and apparently improved microlensing (which I actually think was also part of the DPAF patent, dual microlens layers). Other than that, it is an unchanged sensor. My guess is it's the DIGIC 6 chip ripping out the banding, leaving behind the random, if the banding has indeed been cleaned up.

32
EOS Bodies - For Stills / Re: Do you need a really high ISO?
« on: September 16, 2014, 09:08:39 PM »
In the good old days of film, I shot a lot of Kodachrome64... When lighting was not good your options were to use artificial lights or stop taking pictures. My second body usually had a roll of "high speed" film in it... ISO400 or ISO800..... same problem.... loose the light and you go home.

My first digital DSLR was unusable at ISO800 and topped out at a very noisy ISO1600. Now there isn't a DSLR (or mirrorless) on the market that does not produce better results at ISO12,800 than film did at ISO800.... and the numbers are slowly creeping upward.

Last night I mounted a laser pointer on the top of my camera and tried taking pictures of the cats chasing the red dot. You could not see the red dot. I turned the lights down low and cranked up the ISO to 12800 and it worked very well. These are shots that were impossible before and I have come to accept this as normal.... so yes, I need high ISO....

+1!

33
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 16, 2014, 09:07:00 PM »
Well that new autofocus system in the 7DII is doing really well - the ISO3200 picture on his web page looks completely out of focus (front focus I'd say.) ISO25600 looks similarly misfocused.

So that new AF system in the 7DII ... so advanced that it can't deal with a model that's relatively stationary...

Yes, I'm sure that's the problem.  Thanks for point pointing that out, dilbert.  Maybe his real problem is that he thinks the 7DII is a lens.  Or you do.   ::)

Are you suggesting that the AF problems aren't the cameras and are the lens instead?

So all of those people that complained about the 5D2's AF should really have been complaining about lenses intead?

No, I'm suggesting that your allegation that the 7DII's AF has a problem is baseless trolling.

Really?

Someone that many would call a competent photographer posts a series of images, of which a substantial fraction are out of focus and criticising the camera is baseless trolling?

So what would you like to blame for the focus problems:
* The camera
* The model
* The lens
* The photographer

The AF was off, the exposures were off, the white balance was off. That's not the camera. That's the user. The guy was in a spur-of-the-moment setting, with a BRAND NEW PROTOTYPE camera that he had never before used.

Sorry 'Bert, but you have to account for user error at the very least here, not to mention the potential issues that a PRE-release camera is going to bring to the table. No one is going to instantly become intimately familiar with and capable of using to perfection a brand new piece of hardware after handling it for a few minutes.

So that would be "The Photographer."

Absolutely! Every single photographer on earth botches shots, even the greatest of the great pros. Throw in a bunch of random factors and a brand new prototype camera model that you've never used before, and you would missfocus a bit as well.

34
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 16, 2014, 09:05:06 PM »
ZOMG, I see very obvious horizontal banding on the Image #5 [Portrait], look at the pretty model's sleeveless shirt!  :o Ankortwatt was right, Canon suX0rs canal water!!11 Teh Lulz.

http://canon-premium.webcdn.stream.ne.jp/www09/canon-premium/eosd/samples/eos7dmk2/downloads/05.jpg

Very pronounced and so sharp.  Unbelievable. ::)

They seem to have improved color fidelity. I don't see much of the classic "Canon Waxworks" muddy base colors in that shot.

35
Lenses / Re: Official: Canon EF 400mm f/4 DO IS II
« on: September 16, 2014, 07:18:45 PM »
Sweet Jeebus, look at that MTF!

Indeed. I am quite intrigued...

36
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 16, 2014, 07:14:43 PM »
Well that new autofocus system in the 7DII is doing really well - the ISO3200 picture on his web page looks completely out of focus (front focus I'd say.) ISO25600 looks similarly misfocused.

So that new AF system in the 7DII ... so advanced that it can't deal with a model that's relatively stationary...

Yes, I'm sure that's the problem.  Thanks for point pointing that out, dilbert.  Maybe his real problem is that he thinks the 7DII is a lens.  Or you do.   ::)

Are you suggesting that the AF problems aren't the cameras and are the lens instead?

So all of those people that complained about the 5D2's AF should really have been complaining about lenses intead?

No, I'm suggesting that your allegation that the 7DII's AF has a problem is baseless trolling.

Really?

Someone that many would call a competent photographer posts a series of images, of which a substantial fraction are out of focus and criticising the camera is baseless trolling?

So what would you like to blame for the focus problems:
* The camera
* The model
* The lens
* The photographer

The AF was off, the exposures were off, the white balance was off. That's not the camera. That's the user. The guy was in a spur-of-the-moment setting, with a BRAND NEW PROTOTYPE camera that he had never before used.

Sorry 'Bert, but you have to account for user error at the very least here, not to mention the potential issues that a PRE-release camera is going to bring to the table. No one is going to instantly become intimately familiar with and capable of using to perfection a brand new piece of hardware after handling it for a few minutes.

This is just baseless trolling. Canon has their flaws, but AF is one of the things they excel at. There are other, and much lower hanging, "troll food fruit" which you could go after a bit more effectively here. :P

37
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 16, 2014, 07:08:45 PM »
Well that new autofocus system in the 7DII is doing really well - the ISO3200 picture on his web page looks completely out of focus (front focus I'd say.) ISO25600 looks similarly misfocused.

So that new AF system in the 7DII ... so advanced that it can't deal with a model that's relatively stationary...

Yes, I'm sure that's the problem.  Thanks for point pointing that out, dilbert.  Maybe his real problem is that he thinks the 7DII is a lens.  Or you do.   ::)

Are you suggesting that the AF problems aren't the cameras and are the lens instead?

So all of those people that complained about the 5D2's AF should really have been complaining about lenses intead?

He's suggesting the AF problems are neither...that instead, they are THE USER.

38
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 16, 2014, 07:06:31 PM »
Well that new autofocus system in the 7DII is doing really well - the ISO3200 picture on his web page looks completely out of focus (front focus I'd say.) ISO25600 looks similarly misfocused.

So that new AF system in the 7DII ... so advanced that it can't deal with a model that's relatively stationary...

Well, before I blame the technology, I'd be blaming the user. If the user was able to demonstrate perfect technique, THEN I'd blame the technology.

I'm not impressed with Canon's severe lack of progress on the sensor front, but this is still just the same old anti-Canon crap, Dilbert. :P EVERY AF system can be misused.

39
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 16, 2014, 04:02:30 AM »
Are there some japan speaking (reading) people there?
On web.canon.jp site is lot of information about the 7D Mark II
http://cweb.canon.jp/eos/lineup/7dmk2/feature-highquality.html

or this


The google translation isn't great, but if right the sensor is made in a new process
Quote
The new process introduced in the CMOS semiconductor process
Order to ensure aperture ratio of the photodiode (photoelectric conversion efficiency) up and introduce low-profile and a new technical refinement process in CMOS semiconductor process. I was able by optimizing the device structure, to increase the light collection efficiency of the photodiode further. As a result, in spite of the pixel size reduced by the number of pixels, we have achieved high ISO sensitivity, low noise and a wide dynamic range.

I'm curious what the part between the ADC's and the DIGICs is...

40
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 16, 2014, 02:51:19 AM »
My list...designed to be the all-arounder:

 - Histogram based on RAW *!* (screw JPEG! :P)
 - Higher frame rate (8fps, using CP-ADC for low noise, high speed readout)
 - More dynamic range (high and low ISO...two stops low, as much as possible high)
 - More resolution (~50mp)
 - Layered sensor (drop the bayer! with binning capability, so I could bin 2x2, 3x3, maybe even 4x4 for very high ISO, as I'd rather have the SNR than anything :P...yes, this would mean 150 million photodiodes)
 - iTR metering
 - f/8 AF with center zone support (say 13 center af points usable at f/8)
 - AF-point linked meter
 - DPAF-automated AFMA (and, therefor, DPAF)
 - Dual CF (w/ CFast2 support)

41
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 16, 2014, 12:29:27 AM »
I want to know why the 7D2 does not have a little laser light that shines where the camera is aimed? Everyone knows that the only use of APS-C cameras is to take pictures and videos of cats to put on the internet.... and the videos would be so much better if the cats were chasing that little red dot....

Come on Canon! This is a make or break feature! Why don't you have it!

It might sound funny but I actually wished for a feature like this, not for cat shots but for shots I take from my hip when doing street photography. Then it would be nice to know at which spot the AF is currently aiming. Of course the laser should be off during the shot itself.
and what's really sad is that I had to try this out.....

BTW, the 60D does not have adequate high ISO performance to take good "laser pictures".... I KNEW there was a good reason why I need to upgrade to a 7D2 :)

Put that in a pretty package, sell it on Amazon, and you could make a bundle! :D

42
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 06:08:20 PM »
If I only user center-point for photographing birds, is this really worth the upgrade over the T2i I've been lugging around for several years?  I'm thinking of just getting a 6D or 5Diii, as I can get pretty close to my subjects, and I'm using a 400mm lens.  From the specs of the 7Dii it looks more like a 'side-grade' to the T2i than an actual upgrade, for the type of photography I do.  My main limiting factor right now is iso performance; anything above 400 on the T2i is pretty much useless, and I'm not getting the sense the 7Dii will be any better.   Anyone that shoots similar subject matter have any thoughts on this?

Oh my!  Even the current 7D would be better for your purposes.  This new one, with the 65 f/2.8 focus points will be miles better.  You will be able to actually compose a proper picture instead of shooting dead center and cropping.  AI Servo will be miles better than with your T4i.  And 10fps frame rate will shoot circles around what you currently do, giving you the ability to track and shoot, choosing the peak action in post.  You'll get images you can't imagine getting on a regular basis.

It's seriously not even a reasonable question unless you simply don't have the $.  In fact, for your purposes, I'll bet I'd almost rather have this 7D Mk II than a 5D Mk III.

If wildlife stills were the only goal I'd definitely rather have the 7D2 over the 5D3.

For most people, I agree, it's a great wildlife camera. If you have really long glass, though, the 5D III is pretty awesome. It just lacks in the AF and FPS departments (only five AF points at f/8, stuck to the center, and 6fps.) I am really hoping the 5D IV hits the streets with massive DR, 8fps, and maybe some kind of improved off-center f/8 AF (I don't expect the whole frame, but a little more flexibility would be nice.)

43
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 04:53:49 PM »
The selected point appears when I activate AF (I use rear-button AF). However, I cannot move it until I first hit the AF mode selection button...then that frees the AF point to be moved somewhere else with the joystick. In other modes, I just have to activate AF, then I can move the selected point with the joystick without the intermediate requirement of pressing AF mode first.

I use back-button AF, I just tap the AF-ON button then I can move the joystick to move the AF point (even after I've released the AF-ON button, although as I stated above, moving the AF point 'times out' just like the metering).  That's in all modes, including AI Servo + 61-pt auto.

I dunno what's up. I'm kind of ticked, as since I reset, I now have to press that AF mode button to get the AF point movable in every AF mode. I can no longer simply tap the joystick (after initially activating AF, however that's done) to get it moving. :'( I think something is up with my 5D III.

On the custom controls screen (C.Fn Menu 2 or via Q menu), select the multicontroller (bottom right icon) and select 'AF point direct selection'.  That's off by default, so it got switched back when you did the reset.

I already changed that when I changed the AF to activate only on my * button. I dunno. I'll figure it out later, gotta get back to work here.

44
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 04:43:32 PM »
The selected point appears when I activate AF (I use rear-button AF). However, I cannot move it until I first hit the AF mode selection button...then that frees the AF point to be moved somewhere else with the joystick. In other modes, I just have to activate AF, then I can move the selected point with the joystick without the intermediate requirement of pressing AF mode first.

I use back-button AF, I just tap the AF-ON button then I can move the joystick to move the AF point (even after I've released the AF-ON button, although as I stated above, moving the AF point 'times out' just like the metering).  That's in all modes, including AI Servo + 61-pt auto.

I dunno what's up. I'm kind of ticked, as since I reset, I now have to press that AF mode button to get the AF point movable in every AF mode. I can no longer simply tap the joystick (after initially activating AF, however that's done) to get it moving. :'( I think something is up with my 5D III.

45
EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 02:51:31 PM »
The AF and metering specs sound pretty awesome, very good speed at 10fps too.
It should be quite the beast so long as you only shoot stills and stick to DR-limited scenes.
It does sound quite awesome in all those regards and those are all key points for 7D series.

It is a bit worrisome that the long delay was not due to waiting on a new sensor process though. Not critical maybe for the 7D2, but a clear shame it has the old 2007 low ISO sensor tech once again and it makes one start to get nervous now about the 5D4. And for those who can only afford one body and/or only want to carry one body, it is a shame, one body users will use this as their landscape camera too don't forget and now it is locked into old sensor tech for another 3-5 years it seems.

They totally punted on video though. It has the super video AF, but they remove the touch screen to control it!

“With more processing power than any other EOS camera available today.... ....And, recognizing that for some, creative expression may expand beyond still photography, we continue to support these creative passions by offering new and innovative Full HD video capabilities.”

And yet they cripple 4k out of it.

"Stunning Movie Capability"

And yet no 4k and no 1080P RAW so it's worse movie quality than 5D3+ML. And everybody and there brother is suddenly starting to release 4k cams, even Lumix P&S announced today has 4k. I guess they still feel Nikon is the only threat and since Nikon doesn't have 4k Canon won't bother, so much for being a leader and not a follower.

This also brings much worry about the 5D4. Will it also lack 4k and 1080pRAW (and thus actually be WORSE for video than the old 5D3?) or will it have a crippled 4k now? If they don't give it 4k and 1080pRAW why would anyone buy it for video over a 5D3?

I think ML is the saving grace of Canon cameras right now. It adds all the key features they are lacking. I'm still getting used to it...it adds a LOT of stuff...but, I now already no longer think I could use any Canon camera without it. It's pretty much essential to bring them up to snuff with the competition. (Even then, there are still things lacking.)

At least it's free. So it's not an additional cost, and it really does solve a lot of issues. Going to play with it more later today, pretty happy with it.

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