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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 19 Jun 2014 (Thursday) 22:41
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7D versus 70D - AF Focus System Differences | ISO Performance | IQ

 
davesrose
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Jul 07, 2014 19:51 |  #46

GregDunn wrote in post #17017554 (external link)
If you don't underexpose, the 7D will give quite a good account of itself.

For all factors, that's pretty small. I would say the 7D still has some good attributes to consider: interface, speed, overall AF for a crop sensor. But most all current Canon APS sensors have as good if not better exposure control as the 7D. One minor point about the Rebel/ intro series of the Canons is that they do tend to meter regular "evaluative" a bit on the underexposure side. That's not a detriment: many a budding photographer these days will ask " why is my photo so washed out". For that initial reaction, I can see why the default Canon evaluative metering might side a bit towards underexposure. For those looking at histograms and aiming for the best exposure, as long as the graph is leaning towards right hand/ all within the extreme left and right hand sides, you're golden.


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EverydayGetaway
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Jul 07, 2014 20:35 |  #47

GregDunn wrote in post #17017554 (external link)
No, when you have sufficient exposure on the sensor and more pixels on target with the 7D, it's not at all surprising. The 7D sensor is quite a bit more densely populated (pixel pitch 4.3 vs. 6.25 microns) so the data / unit area is about 10% better than the 5D3. With the same lens on each, there will be more resolution in the 7D images since the subject will be larger in the frame. If you don't underexpose, the 7D will give quite a good account of itself.

I use the 7D where I have control over the lighting (hence, no need to lift the shadows) and the results are comparable. In some cases, the 7D does look a little better because when using an EF lens, the loss of quality at the edges is notably less.

If you fill the 5D3 frame with your subject (which means a longer focal length), or are forced to underexpose your images, you're handicapping the 7D. These are situations where I do use the 5D3, and it does a great job.

For those who are worried about more post-processing effort on the 7D: I don't see that much extra work is needed, but if you use Lightroom or Photoshop, build an action to handle it on import and the added time required is negligible.

Fair enough, but if you're not cropping the crap out of a 5D image it'll for sure be cleaner and sharper than the 7D image just about every time. So I agree with the originally quoted text.


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TeamSpeed
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Jul 07, 2014 20:45 |  #48

EverydayGetaway wrote in post #17017663 (external link)
Fair enough, but if you're not cropping the crap out of a 5D image it'll for sure be cleaner and sharper than the 7D image just about every time. So I agree with the originally quoted text.

Just cropping out the APS-C FOV from the 5D3 is sufficient to degrade the IQ enough to give the 7D the edge. They are close, when you resize the 5D3 up, but there is still a difference that can be seen. Adding a 1.4x to your lens on the 5D3 is more than sufficient to overcome the difference.


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EverydayGetaway
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Jul 07, 2014 20:48 |  #49

TeamSpeed wrote in post #17017681 (external link)
Just cropping out the APS-C FOV from the 5D3 is sufficient to degrade the IQ enough to give the 7D the edge. They are close, when you resize the 5D3 up, but there is still a difference that can be seen. Adding a 1.4x to your lens on the 5D3 is more than sufficient to overcome the difference.

Which was exactly my point, one should be comparing apples to apples. It should go without saying imo that a crop from one camera will not be as good as a full image from another.


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Mike55
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Jul 07, 2014 21:12 |  #50

TeamSpeed wrote in post #17017681 (external link)
Just cropping out the APS-C FOV from the 5D3 is sufficient to degrade the IQ enough to give the 7D the edge. They are close, when you resize the 5D3 up, but there is still a difference that can be seen. Adding a 1.4x to your lens on the 5D3 is more than sufficient to overcome the difference.


not with the 7D's soft focus and muddy files.


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Mike55
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Jul 07, 2014 21:17 |  #51

GregDunn wrote in post #17017554 (external link)
No, when you have sufficient exposure on the sensor and more pixels on target with the 7D, it's not at all surprising. The 7D sensor is quite a bit more densely populated (pixel pitch 4.3 vs. 6.25 microns) so the data / unit area is about 10% better than the 5D3.

Define "better". Noise? Sharpness? More pixels does not mean better.


If you don't underexpose, the 7D will give quite a good account of itself.

Lots of "if's". A good camera just does the job without qualifiers.

For those who are worried about more post-processing effort on the 7D: I don't see that much extra work is needed, but if you use Lightroom or Photoshop, build an action to handle it on import and the added time required is negligible.


Building an action is requiring more post processing, FWIW.

I've used a few 7D's, and they are the worst Canon DSLR's I have ever used.


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TeamSpeed
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Jul 07, 2014 23:54 |  #52

Mike55 wrote in post #17017739 (external link)
not with the 7D's soft focus and muddy files.

False, I already did the tests and posted them. My 7ds had no such issues. Nice try though, you keep posting this but yet you still kept your 7d through the years. You're kinda like that guy that gets cornered in the alley, and tries to point at an imaginary object, and says "hey look over there" and hopes the mob of people fall for your misdirection so you can get away. :)

I give you kudos for trying though, despite on how tired and repetitive the rhetoric.


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Mike55
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Jul 08, 2014 12:21 |  #53

That's a very odd way to view this, to personalize it in such a way.


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dinanm3atl
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Jul 15, 2014 00:47 |  #54

And then continue to shoot the 7D and end up with shots I love... when is a 7D MKII actually going to happen or is it just a pipe dream?

Still think a test of the 70D is in order.

*note* yes sensor is dirty. By the time I am at the end of the weekend all 3 cameras need a cleaning.

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Jul 15, 2014 09:02 |  #55

I have nothing to add other than this is a fantastic shot...




  
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7D versus 70D - AF Focus System Differences | ISO Performance | IQ
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