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PostPosted: Tue Jul 02, 2013 10:15 am 
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Hi everyone, this is the official thread to discuss the Canon EOS 70D DSLR!

See my Canon EOS 70D review for more details and comparisons against the EOS 60D, EOS 7D, EOS 6D and the Nikon D7100!

The Canon EOS 70D is the company's latest mid-range DSLR, featuring a 20.2 Megapixel APS-C sensor, Full HD video, a fully articulated touch-screen monitor, 7fps continuous shooting, built-in Wifi and an innovative new on-chip autofocusing system. It inherits the 19-point AF system of the 7D, the Wifi from the 6D and the articulated touchscreen of the T4i / 650D, but it's the new sensor that's grabbing headlines by allowing 80% of its pixels to double-up as phase-detect AF points for faster and better continuous AF during live view and movie shooting.

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PostPosted: Tue Jul 02, 2013 11:39 am 
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Interesting stuff all round here.

Pricing first, I've seen a UK price of a tad under £1100 mentioned. That compares with a current best street price of a tad under £1000 for the much older 7D.

Wifi like 6D, yes please.

The live view (and presumably video) AF is of course interesting, although the lens compatibility is a bigger question. If it really is good enough for tracking, then we can really look forward to some interesting stuff in a future M.

People have also wondered if it would be possible to get 40MP of image data out. While I doubt Canon want to offer that, I wonder if it's "baked" into the sensor or could a future Magic Lantern unlock that? It will probably make de-bayering software cry if you could.

Saw sealing claims elsewhere comparing it against the 1N I think. No idea how good that will be, but some is better than none.

And finally, whatever the 7D mk2 will be, it's gotta be better than this so I can't wait to see what else Canon have been working on.

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PostPosted: Tue Jul 02, 2013 11:49 am 
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Oh Gordon I love your reviews, I wait to see the comparison between the Canon 70D and the Nikon D7100, I think the 70D is better, we will see when the time comes.

And yes I know you cant review it till its released late August and it will take a while to review.

This Camera as i see is about the same size and weight as the 60D, and far superior to it too, at a nice price.
Its just what earlier rumors said it was, heck its better than the earlier rumors.

I really hope the AF performs the way canon says it does!!! This camera is on the top of my list for my first DSLRs now!


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PostPosted: Tue Jul 02, 2013 12:00 pm 
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Hey Gordon, Can you pls compare the 70D to the 60D and the 7D in addition to the nikon D7100 when the 70D released and you get your copy?


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PostPosted: Tue Jul 02, 2013 12:09 pm 
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Hi popo,

I'll nail my flag to the mask and state that there is no point in extracting 40MP of data even if it could be accessed, say by third party firmware. If you check out Canon's video Introducing the new Dual Pixel CMOS AF technology over on Vimeo you can see that each "pair" of photodiodes lies behind a single microlens. It is also my guess, but only a guess, that each pair of photodiodes is effectively binned at a hardware level on the sensor during image capture to achieve the best possible signal to noise ratio.

But this dual pixel AF tech is exciting stuff. I don't see why it should necessarily be faster than more conventional sensor based phase detect AF unless it is able to leverage the chance of being able to detect and use high contrast areas in a scene which happens to be pretty deficient in such areas. That said, if it works as well as conventional phase detect AF on a separate sensor then with an almost limitless number of AF points to choose from tracking might only be limited by firmware and the rate at which data can be extracted from the sensor. And that data rate might prove to be a bit of a ha-ha unless Canon has implemented some very clever pixel addressing, something that they might well have done - the reviews will no doubt tell all.

But if this tech works as well as the early previews are suggesting then Canon have pulled an absolute blinder and coupled with a compelling feature set the 70D might just have raised the bar. 8)

Bob.

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PostPosted: Tue Jul 02, 2013 1:12 pm 
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http://www.the-digital-picture.com/Revi ... S-70D.aspx

On this page you can see picture accurate comparison between the 70D and other canon slr, the 7d, t5i/700d and the the 60d


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PostPosted: Tue Jul 02, 2013 1:26 pm 
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Well this camera got my interest, I'm not going to buy it or anything, but it definitely caught my attention.

Starting with the new sensor, the resolution boost is nothing impressive, but for me, 20MP is just enough. What I wonder is, being a replacement for the 18MP sensor that Canon has recycled for many years, if this new sensor will have any low-light improvements. Also it's worth to mention that the new Live View AF might be quite interesting, though I would believe it'd only work currently on STM lenses, but I'm just speculating.

The new touch screen is also a nice feature coming from the T4i which seemed to get quite a positive reaction to it and it will be pretty much the standard in a few years, at least for the cameras in this price range, I think.

The inclusion of Wi-Fi seems a really nice feature, because despite the, in my opinion, shortcoming of the 6D, I saw some interesting stuff you could do with Wi-Fi included, though I don't know if this will affect battery life, but I believe it can be turned off.

What really got my attention is the new 7fps continuous shooting and the 7D's 19-point AF system, which came as a surprise to me when I saw it. I believe it makes it for people who might want to shoot sports or wildlife or similar where you'd need the AF and continuous shooting of the 7D, but perhaps didn't need the weather sealing and magnesium body. Also, as popo mentioned, I believe that if they included these features in the 70D, they are probably going to pump up the 7D Mk II quite nicely.

Having this in mind, the only downside that comes to mind is price. The Wi-Fi alone is probably going to make it quite more expensive like the 6D, but it's worth to mention the 70D won't have GPS, so there's that.

I will expect you review Gordon, seems like a pretty interesting camera :)

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PostPosted: Tue Jul 02, 2013 7:07 pm 
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I can easily see this becoming my next camera. Unless the 7D Mk II isn't significantly more expensive (unlikely) and has an articulated screen, I think the 70D is the way forward for me.

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PostPosted: Tue Jul 02, 2013 8:29 pm 
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Hi everyone, I've just completed my preview - hope you like it!

See my Canon EOS 70D preview for more details and comparisons against the EOS 60D, EOS 7D, EOS 6D and the Nikon D7100!


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PostPosted: Tue Jul 02, 2013 10:03 pm 
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I havnt read the whole thing and I like it I am glad you are comparing the 70D to the 7D and the 60D, two obvious rivals to the 70D


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PostPosted: Wed Jul 03, 2013 2:26 am 
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intelligent viewfinder sounds exciting , what is it?
weather sealing same as 1D N, what does that mean the 1D N is over ten years old, couldn`t they compare it to something from this millennium.

Looking forward to the specs of the 7D II.

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PostPosted: Wed Jul 03, 2013 11:18 am 
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pierovera wrote:
Also it's worth to mention that the new Live View AF might be quite interesting, though I would believe it'd only work currently on STM lenses, but I'm just speculating.

Why should it? The camera isn't really interested in what motor the lens has. The sensor AF on the T4i / T5i works just as fine with other lenses. STM lenses are just focusing smoother, which looks a little bit better.


maxjj wrote:
weather sealing same as 1D N, what does that mean the 1D N is over ten years old, couldn`t they compare it to something from this millennium.

Well - they already compared the 7D to the 1DN so I guess you can compare the 70D's sealing to the 7D's. :mrgreen:


The 70D's features look pretty nice and if the noise is again slightly less than the 60D's it might slowly be worth an upgrade over my 500D.

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PostPosted: Wed Jul 03, 2013 5:00 pm 
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Jiko wrote:
Why should it? The camera isn't really interested in what motor the lens has. The sensor AF on the T4i / T5i works just as fine with other lenses. STM lenses are just focusing smoother, which looks a little bit better.

What I meant to say rather, was that the continuous focusing when on video might not work with lenses other than STM, but I'm not sure since I don't use continuous focusing even when shooting stills, so I don't know how do other lenses perform, though on my SX20, the USM lens could, when in pretty contrasty situations, focus continuously almost perfectly.

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PostPosted: Wed Jul 03, 2013 7:59 pm 
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Well... on my girlfriend's 650D the continous video AF works fine with any lens - even with the old and really bad EF 35-80mm 4-5.6. You just hear those lenses focusing and they are not as smooth.

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PostPosted: Thu Jul 04, 2013 2:19 pm 
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Its makes sense to me that the motor is important at least to the speed and accuracy of the AF.
a fast and well built lens motor along with a great AF will make great focusing, a slow dull lens motor with the same fast and accurate AF will make for slow AF even though its till accurate!


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