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Author Topic: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D  (Read 6573 times)

Neutral

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Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« on: November 09, 2013, 03:45:55 AM »
Found  interesting info on  Sony 7R image quality vs. 5Dm3, Nikon D800E and Pentax 645D with 100% comparison crops at different ISOs at imagine -resource:
http://www.imaging-resource.com/camera-reviews/sony/a7r
 Very interesting to see comparison of Canon 5D M3 with Sony a7R  at ISO 3200  both  low contrast high details shorts and for high contrast ones.
« Last Edit: November 09, 2013, 03:53:05 AM by Neutral »

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Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« on: November 09, 2013, 03:45:55 AM »

Albi86

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #1 on: November 09, 2013, 05:43:48 AM »
Interesting display of capability by the a7r, but for a comparison with other cameras we should know what lenses have been used on them: "our very sharp reference lenses" means absolutely nothing to me.

Also these tests with JPG OOC are sort of pointless because they don't reflect how cameras are really used in real life - see lenstip's image samples.

drjlo

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #2 on: November 11, 2013, 08:38:45 PM »
I like this guy's idea  8)
Actually, since Sony and Zeiss often make AF lenses together, I wonder if there will be an AF-version of Otus 55 mm for Sony.  That would tip the scale for me for sure..


Sony A7r Zeiss Otus 55mm by drjlo2, on Flickr
« Last Edit: November 11, 2013, 08:41:05 PM by drjlo »

9VIII

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #3 on: November 11, 2013, 11:03:46 PM »
Once again, it's baffling that there isn't more demand for 50+MP cameras.

Chances are it's actually just the speed of memory cards and processors holding things back.
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neuroanatomist

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #4 on: November 12, 2013, 09:51:52 AM »
Once again, it's baffling that there isn't more demand for 50+MP cameras.

How well do Phase One cameras sell?
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JohnDizzo15

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #5 on: November 12, 2013, 11:21:02 AM »
Once again, it's baffling that there isn't more demand for 50+MP cameras.

How well do Phase One cameras sell?

You never fail me. LOL

Axilrod

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #6 on: November 12, 2013, 12:21:14 PM »
I like this guy's idea  8)
Actually, since Sony and Zeiss often make AF lenses together, I wonder if there will be an AF-version of Otus 55 mm for Sony.  That would tip the scale for me for sure..


Sony A7r Zeiss Otus 55mm by drjlo2, on Flickr

This belongs in the pornography section...you're a lucky man
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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #6 on: November 12, 2013, 12:21:14 PM »

Policar

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #7 on: November 12, 2013, 01:35:55 PM »
Once again, it's baffling that there isn't more demand for 50+MP cameras.

How well do Phase One cameras sell?

Given that back in the day virtually all "serious" photographers shot not only 120 but 4x5 (or larger), not nearly as well as affordable medium format gear could.

Canon has had some luck branching out into "cinema" and is attempting to branch out into security cameras. The super-high-end might be the market to pursue.

traveller

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #8 on: November 12, 2013, 01:45:40 PM »
Good to see that Sony's jpeg engine has been improved, especially at high ISO; it must have been galling to see how much better Nikon and Pentax could do with their own sensor! Some of these differences will fall away once RAW based comparisons are available, but the A7R should still lead the pack (with the D800E) for resolution.

sdsr

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #9 on: November 12, 2013, 02:32:09 PM »

Also these tests with JPG OOC are sort of pointless because they don't reflect how cameras are really used in real life - see lenstip's image samples.

That's especially true of a camera whose size is a big selling point.  These test shots were all done in a studio on a tripod, but much of the appeal of a small camera is that it's something you can use "on the go", relatively inconspicuously, spontaneously and fast - i.e., without a tripod.  It will be interesting to see how well the A7R works hand-held - as anyone who has used or read about the D800 knows, all those megapixels make any imperfections in your technique (and lenses) glaringly obvious.  I suspect that the A7 works better for such use.  Both would have benefited from IBIS.

Jackson_Bill

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #10 on: November 12, 2013, 03:35:04 PM »

It will be interesting to see how well the A7R works hand-held - as anyone who has used or read about the D800 knows, all those megapixels make any imperfections in your technique (and lenses) glaringly obvious.  I suspect that the A7 works better for such use.  Both would have benefited from IBIS.

The number of megapixels make no difference if you print at the same size.

Dylan777

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #11 on: November 12, 2013, 04:02:53 PM »
I'm not sure what kind of sensor Samsung Galaxy S4 has, but I took this this photo with my S4 through the car window early this morning. I was stopping at the light and can't believe the sky is filled with colors...
« Last Edit: November 12, 2013, 04:36:18 PM by Dylan777 »
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Prime: 40mm -- 85L II -- 135L -- 400L f2.8 IS II

Albi86

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #12 on: November 13, 2013, 02:51:43 AM »
I like this guy's idea  8)
Actually, since Sony and Zeiss often make AF lenses together, I wonder if there will be an AF-version of Otus 55 mm for Sony.  That would tip the scale for me for sure..


Sony A7r Zeiss Otus 55mm by drjlo2, on Flickr

The lenses you're talking about are actually made by Sony. Zeiss provides the QC and certifies their performance - thus the Zeiss logo and names.

Anyway, Zeiss has confirmed that they will make MF lenses for the a7 same as they do for Canon and Nikon ;)

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #12 on: November 13, 2013, 02:51:43 AM »

sdsr

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #13 on: November 13, 2013, 09:47:53 AM »

It will be interesting to see how well the A7R works hand-held - as anyone who has used or read about the D800 knows, all those megapixels make any imperfections in your technique (and lenses) glaringly obvious.  I suspect that the A7 works better for such use.  Both would have benefited from IBIS.

The number of megapixels make no difference if you print at the same size.

Maybe not, but a selling point of high MP sensors is the heavy cropping they allow (and, relatedly, the remarkable amounts of detail you can see when the image on a large monitor).

9VIII

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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #14 on: November 15, 2013, 03:19:11 AM »
Once again, it's baffling that there isn't more demand for 50+MP cameras.

How well do Phase One cameras sell?

Given that back in the day virtually all "serious" photographers shot not only 120 but 4x5 (or larger), not nearly as well as affordable medium format gear could.

Canon has had some luck branching out into "cinema" and is attempting to branch out into security cameras. The super-high-end might be the market to pursue.

It's actually surprising how well the D800 does when compared to a high end medium format camera, considering how heavily the specs are stacked against it.
http://www.cameralabs.com/reviews/Nikon_D800/Nikon_D800_vs_Phase_One_medium_format_quality.shtml

I also found this kind of funny.

Quote
the IQ180 digital back’s new memory card interface is so fast that it eliminates buffering delays, supporting continuous shooting - at 0.7fps - until a card is full.
http://www.photographyblog.com/news/phase_one_iq180_iq160_and_iq140


When I first read about the price drop on the Pentax 645D I actually took a semi-serious look at it, but even after the price drop, it can't use Canon glass, it shoots at 1.1FPS, and the IQ isn't a big enough jump above what high resolution 35mm sensors can do. I'm not going to get a $7,000 body just for a mild improvement in IQ at a handful of focal lengths. If a high resolution 35mm sensor only cost a few hundred dollars more though, it becomes an obvious choice. Plus if they let you shoot in an APS-C mode with a higher burst rate you would have an incredibly versatile camera.




It will be interesting to see how well the A7R works hand-held - as anyone who has used or read about the D800 knows, all those megapixels make any imperfections in your technique (and lenses) glaringly obvious.  I suspect that the A7 works better for such use.  Both would have benefited from IBIS.

The number of megapixels make no difference if you print at the same size.

Maybe not, but a selling point of high MP sensors is the heavy cropping they allow (and, relatedly, the remarkable amounts of detail you can see when the image on a large monitor).

Remember that most crop sensors have far higher pixel density than the A7R, and people have been using those, handheld, to shoot birds in flight for years now. The necessary adjustments to get improved handheld images with a 36MP sensor isn't even going to be half what people do to get good BIF shots.
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Re: Sony 7R IQ vs Canon 5Dm3, Nikon D800E and Pentax645D
« Reply #14 on: November 15, 2013, 03:19:11 AM »