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NZ107
Posts: 4946
Joined: Sun Jul 10, 2005 6:51 pm

RE: Canon 70D

Thu Jul 04, 2013 9:09 pm

A nice article showing the speed of the AF through live view.. http://www.canonrumors.com/2013/07/c...eos-70d-dual-pixel-af-performance/

Damn! 5D4, I hope you have this!
 
ckw
Topic Author
Posts: 4586
Joined: Fri Aug 27, 2010 12:26 am

RE: Canon 70D

Thu Jul 04, 2013 9:48 pm

Quoting vikkyvik (Reply 47):
Well, I'm not sure one can make that condition. Otherwise, there's never a reason to upgrade based on image quality, which I doubt is true.

I don't know - is there a reason? Who's making the case? The manufacturers (for obvious reasons), the photo press (well they need something to write about) and our own peer group - we all like the idea of having the best.

None of these of course are objective! Nor are you or I - of course we can see a difference, but I fear we are becoming like those audiophiles who will spend hundreds of pounds on speaker cable for an improvement, which I suspect will be undetectable to 90% of people. And that's fine - we all have our obsessions, and if no one suffers, go and enjoy yourself.

But I think we are kidding ourselves if we say an upgrade based purely on image quality is necessary (I will grant an exception to those who specialise in high ISO work).

Has anyone on this site, shooting ANY dslr ever had a requested photo rejected by the client purely on the grounds of image quality? I bet not.

Cheers,

Colin
 
vikkyvik
Posts: 12683
Joined: Thu Jul 31, 2003 1:58 pm

RE: Canon 70D

Thu Jul 04, 2013 11:06 pm

Quoting Silver1SWA (Reply 48):
First of all, then don't upgrade. If what you have is good enough for you, then don't worry about upgrading.

I know. I'm not saying one has to upgrade. But I would expect image quality to be better, given the new sensor and such. The features on the 70D certainly aren't enough to make me upgrade - IQ would be the only possible thing (if I were looking to upgrade, which I'm not   ).

Quoting ckw (Reply 51):
I don't know - is there a reason? Who's making the case? The manufacturers (for obvious reasons), the photo press (well they need something to write about) and our own peer group - we all like the idea of having the best.

Absolutely. Though I can't afford the best, nor will I be able to for the foreseeable future. Reasons for upgrade are your own personal reasons, whatever they may be.

Quoting ckw (Reply 51):
But I think we are kidding ourselves if we say an upgrade based purely on image quality is necessary (I will grant an exception to those who specialise in high ISO work).

I shoot a crapload of high ISO, so it is important to me. Though with proper exposure / overexposure and some NR, I can get decent results from my 50D. Hence, I would likely only upgrade to FF.
 
angad84
Posts: 2136
Joined: Mon Nov 05, 2012 3:04 pm

RE: Canon 70D

Fri Jul 05, 2013 10:02 am

Quoting vikkyvik (Reply 52):
I shoot a crapload of high ISO, so it is important to me. Though with proper exposure / overexposure and some NR, I can get decent results from my 50D. Hence, I would likely only upgrade to FF.

High-ISO when resized down to 1200px or so is far from a good measure of a sensor's ISO performance.

I always expose to the right with Canon cameras but I would never go beyond ISO 1250 with the 50D because while it may look good on A.net or anywhere else online, it doesn't hold up for large prints, and that's my yardstick for quality. FWIW, 1600 doesn't really count as "high ISO" anymore  

My point: at this stage, almost all cameras provide excellent results for me up to ca. 400 ISO, so I look for good high-ISO (1600 and up) performance when judging the merits of different bodies.
 
18161
Posts: 1330
Joined: Thu Oct 21, 2004 9:19 am

RE: Canon 70D

Fri Jul 05, 2013 11:34 am

Quoting vikkyvik (Reply 52):
But I would expect image quality to be better, given the new sensor and such. The features on the 70D certainly aren't enough to make me upgrade

to some kind of photographers the new cameras make a difference, who shoots indoors and concerts etc. The new cameras shine in high iso's compared to a 40D or 50D.

You can try to replicate the "indoor" shot of 70D at ISO 3200 with the same settings on your 50D and you might see the difference.

http://canon-premium.webcdn.stream.n...sd/samples/eos70d/downloads/07.jpg
Tv (Shutter Speed):
1/400 sec
Av (Aperture Value):
f/4.0
ISO Speed:
ISO3200

[Edited 2013-07-05 04:39:55]
 
vikkyvik
Posts: 12683
Joined: Thu Jul 31, 2003 1:58 pm

RE: Canon 70D

Fri Jul 05, 2013 6:44 pm

Quoting angad84 (Reply 53):
My point: at this stage, almost all cameras provide excellent results for me up to ca. 400 ISO, so I look for good high-ISO (1600 and up) performance when judging the merits of different bodies.

I do too. That's really all I was saying. The 50D just happens to not be too bad to me for high ISO.

Quoting angad84 (Reply 53):
High-ISO when resized down to 1200px or so is far from a good measure of a sensor's ISO performance.

I know.

Quoting angad84 (Reply 53):
FWIW, 1600 doesn't really count as "high ISO" anymore

Hey, I was just going by what you said earlier:

Quoting angad84 (Reply 42):
I love the 50D up to ISO 200 in broad daylight
 
angad84
Posts: 2136
Joined: Mon Nov 05, 2012 3:04 pm

RE: Canon 70D

Fri Jul 05, 2013 7:58 pm

Quoting vikkyvik (Reply 55):
Hey, I was just going by what you said earlier:

Oh, I meant that the 50D is flawless up to 200, requires progressively more work up to 1600 (I frequently shoot at 1600, just rarely stuff I'm going to sell/print) and is pretty pointless above 2000. Not that I never shoot above 200!
 
ckw
Topic Author
Posts: 4586
Joined: Fri Aug 27, 2010 12:26 am

RE: Canon 70D

Fri Jul 12, 2013 11:09 am

For those (like me) who are waiting for the 70D with some anticipation, the manual is now online at

http://gdlp01.c-wss.com/gds/5/0300011965/01/eos70d-im-en.pdf

There's also a rather helpful website at:


http://web.canon.jp/imaging/eos70dshootingguide

I'm not holding my breath over any massive improvement on IQ, but the ability to focus by touch screen via a mobile app is a huge feature for me - so many shoots where I really need to be in 2 places at the same time! Should also make it possible to weatherproof the camera - maybe even construct an affordable underwater housing.

Cheers,

Colin
 
ckw
Topic Author
Posts: 4586
Joined: Fri Aug 27, 2010 12:26 am

RE: Canon 70D

Fri Jul 26, 2013 8:07 pm

More on the new AF system from Canon

http://www.learn.usa.canon.com/app/p...terview_nonfacing_pressquality.pdf

What is interesting is the section on supported lenses - it would appear that 3rd party lenses may not be able to take full advantage of the new system. What I suspect this really means is that the 70D will detect an "unsupported" lens and change its focusing mode to suit. (Note the chart explaining what works and what doesn't).

Bottom line - if you use 3rd party lenses, the 70D may not be the best option - and it would certainly be worth waiting until real user experience starts to appear.

Cheers,

Colin

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