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Thread started 14 May 2010 (Friday) 00:39
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t2i vs 7d - ISO noise and IQ

 
Fellipe ­ de ­ Paula
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May 14, 2010 00:39 |  #1

Just a quick thread comparing only these features:
are the IQ and ISO noise the same?


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jwcdds
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May 14, 2010 00:41 |  #2

Judging by those 2 stats alone, they should be.


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Fellipe ­ de ­ Paula
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May 14, 2010 00:44 |  #3

just a rough comparison with the 5d mk2, are they something like "1 stop" worst or can I expect near quality with the 5dmk2?


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jwcdds
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May 14, 2010 00:52 |  #4

At 100% viewing, you're looking at ~1-1.5 stop advantage on noise compared to the 5d2. But I don't get why you're even bothering w/ the comparison. I mean if the budget is there, get the best camera you can afford and put it to use. I don't think anyone would care about a 1-1.5 stop advantage at 100% viewing if the photo is composed well, exposed well, and of something that is interesting.

If you want to look at the ultimate high ISO IQ performer, you should just look at the D3s. (That is until someone comes up with another camera that can beat it.)


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magwai
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May 14, 2010 03:20 |  #5

get the cheapest camera that does what you want, not the most expensive you can afford.




  
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apersson850
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May 14, 2010 04:07 as a reply to  @ magwai's post |  #6

Get a camera that fulfils you needs. It's not the sensor by itself that makes pictures. If you think so, then try holding one roll of film in one hand, another in the other hand, and see which gives the best images. If you have sensors lying loose, you could use them, but film is probably easier to get.

So even if the 550D and the 7D have equivalent sensors, they most certainly aren't equivalent cameras.


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Tarzanman
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May 14, 2010 07:20 |  #7

Fellipe de Paula wrote in post #10178133 (external link)
Just a quick thread comparing only these features:
are the IQ and ISO noise the same?

They use the same sensor and same processor. The results/performance should be pretty much identical (assuming you get your 7D to focus... JUST KIDDING! :eek: )




  
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TeamSpeed
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May 14, 2010 07:50 |  #8

Tarzanman wrote in post #10179158 (external link)
They use the same sensor and same processor. The results/performance should be pretty much identical (assuming you get your 7D to focus... JUST KIDDING! :eek: )

Once again, not the same sensor....


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magwai
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May 14, 2010 08:41 |  #9

TeamSpeed wrote in post #10179238 (external link)
Once again, not the same sensor....

Yes, the T2i sensor is more recent so probably better, like the 5d2 was better than the 1Ds iii




  
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DarthVader
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May 14, 2010 08:43 |  #10

:lol:...what you've been smoking ?.

magwai wrote in post #10179395 (external link)
Yes, the T2i sensor is more recent so probably better, like the 5d2 was better than the 1Ds iii


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magwai
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May 14, 2010 08:50 |  #11

maverick678 wrote in post #10179407 (external link)
:lol:...what you've been smoking ?.

i am being serious. they cannot afford to maintain too many different fabrication processes for this stuff, so progress tends to be forwards only.

there are lots of tests that say on IQ alone the 5d2 is the best Canon made to date.

the sensor on the t2i will just be an updated version of the one on the 7d. if they had redesigned from scratch they couldn't sell it at that price.

the 7d will be better in lots of other ways, but not the sensor.

i really hate the rebel dissing BS that some people are prone to on this site. they are great cameras.




  
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DarthVader
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May 14, 2010 08:53 |  #12

Well ...enjoy whatever you want to believe :).

magwai wrote in post #10179444 (external link)
i am being serious. they cannot afford to maintain too many different fabrication processes for this stuff, so progress tends to be forwards only.

there are lots of tests that say on IQ alone the 5d2 is the best Canon made to date.

the sensor on the t2i will just be an updated version of the one on the 7d. if they had redesigned from scratch they couldn't sell it at that price.

the 7d will be better in lots of other ways, but not the sensor.

i really hate the rebel dissing BS that some people are prone to on this site. they are great cameras.


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jwcdds
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May 14, 2010 08:54 |  #13

magwai wrote in post #10179444 (external link)
i really hate the rebel dissing BS that some people are prone to on this site. they are great cameras.

You hate the rebel dissing, but you start off with the opening salvo? (Lots of assumptions being made on both sides as it's fairly safe to assume no one on POTN knows for sure which sensor is better, or even "newer", or if not identical. We don't work for Canon after all.)

I don't think anyone has dissed the rebel in this particular thread yet. :D


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TeamSpeed
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May 14, 2010 08:58 |  #14

I won't get drawn into any rebel dissin'/pissin' contest, I like the rebel line, I completely dislike the size and ergonomics and neutered features. Plain and simple...

As to the sensor differences, close but not the same.

Sensor and processor. The Canon EOS T2i's design is based around a DIGIC 4 image processor and a newly developed CMOS image sensor that's very closely related to the chip previously seen in the EOS 7D. As with that camera, effective resolution is 18.0 megapixels -- a modest upgrade from the 15-megapixel imager of the T1i. Maximum image size in pixels is 5,184 x 3,456. Pixel pitch is 4.3µm, and gapless microlenses help boost light gathering capability.

Where the two imagers differ is in their readout method, and hence their speed. The EOS 7D's sensor has eight channel readout, key to that camera's eight frames per second burst shooting. The Canon Rebel T2i's sensor has four channel readout, which means a more modest 3.7 frames per second burst shooting -- but it's still a slight upgrade in speed from the 3.4 frames per second of the T1i. Unfortunately, the increased throughput caused by the faster burst speed and higher sensor resolution together conspire to greatly reduce the burst shooting depth as compared to the T1i. The Canon T2i can capture six RAW or 34 large/fine JPEG frames in a burst, where the T1i was capable of nine RAW or 170 large/fine JPEG frames before shooting slowed.


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enrigonz
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May 14, 2010 08:59 |  #15

maverick678 wrote in post #10179454 (external link)
Well ...enjoy whatever you want to believe :).

Actually he's not to far off the truth..... sorry if that disappoints you but is the truth!


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t2i vs 7d - ISO noise and IQ
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