Canon 7D. Home run? Disappointment?
- Thread starter danielteng
- Start date
Hobbyist here ... dry run (in preparation for overseas trip) at Bukit Timah Nature reserve, Changi & East Coast ... at least for me, its really good. A little heavy when carrying it for long treks but saw some guys with battery grips, must be that I need more strength training ...;p
alliedhero
New Member
Dun Mind me highlighting; 7D would fit in instead of 50D looking at the AF/ Overheat issues we heard here in CS. LOL
Haha, shutter sound.......:bigeyes:
I just stumbled upon this:
http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Camera-rankings
See above link for full list of camera rankings based on sensor performance:
#7 - Canon EOS 5D Mark II
#16 - Nikon D5000
#31 - Canon EOS 7D
#32 - Nikon D60
#46 - Canon EOS 500D
Having a 18mp sensor smaller than that of D5000, I'm not surprised. This is what happens when the canon big bosses say "forget about the hardware, let's work on marketing" :devil:
http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Camera-rankings
See above link for full list of camera rankings based on sensor performance:
#7 - Canon EOS 5D Mark II
#16 - Nikon D5000
#31 - Canon EOS 7D
#32 - Nikon D60
#46 - Canon EOS 500D
Having a 18mp sensor smaller than that of D5000, I'm not surprised. This is what happens when the canon big bosses say "forget about the hardware, let's work on marketing" :devil:
The website say 7D is 3FPS....:bsmilie: wonder how accurate are the information!
a) The data in DXOMark is incomplete. The data they collect hardly tells the whole picture. As a matter of fact, that site is full of garbage.
DXOMark is also full of self-contradictions. Compare 50D to 7D. Look under SNR18%, DR and Color Sensitivity. Check out both screen (pixel level) as well as print (image level) tabs. What do you see? You'll find that the 50D/500D data follows the 7D VERY closely. Now look at the scores they assign for low light ISO. They gave 7D a score ~ 800 while the 50D/500D ~ 700. Why this self-contradiction? How can you rely on a site that does not even trust its own data?
Next, DXOMark results COMPLETELY contradict side-by-side comparisons shown in Imaging Resource, DPReview and the-digital-picture. This tells us there is something HORRIBLY wrong with them.
b) Read what some experts say about DXOMark data here:
"Something is wrong with the 7D used by DxO. It has far too much read noise at high ISOs. Almost every figure I've seen regarding 7D read noise at ISO 1600 averages somewhere around 19 ADU, and the 40D is around 22 or so. With 1.8x as many pixels, the image-level read noise of the 7D should be (19/22)(1.8^0.5) = .64 or about 2/3 stop more DR. The DxO "Print" for DR shows the same results as the 40D for high-ISO ... this doesn't make sense."
c) Now, let's look at comparisons between different brands. Notice that the D90/D5000 sensor has BETTER performance than the recently released (and much more expensive) D300s? What's going on? They are ALL 12 MP APS-C sensors.
So, what's the mystery?
It all boils down to in-camera RAW NR performed in D90/D5000. The result is marshy PLASTICKY appearance at high ISO. Explains why DPReview initially finds the D90 images to be soft at the pixel level. You will find proof of D90 in-camera RAW NR here.
Read what others have to say about this:
"...the Canon 500D which does not do Noise Reduction (NR) to raw at all has the most detail (and noise), while the Nikon D5000 which does the most (uncaught by testing) NR to raw has the least detail and a slight amount less noise, where the K-x fits somewhere between."
And when you compare Pentax k-x vs Canon 7D etc, you'll find this:
"what you are missing is that the actual improvement in apparent sensor performance of the K-x over the others at these high ISO's is just a matter of some extra clever Noise Reduction (NR) applied to the raw data that can't be turned off. The K-x images are very slightly softer than the others, which accounts for its improvement that can be seen."
So far, Sony (blatant and BADLY done), Nikon (less intrusive but softness is still VERY perceptible) and Pentax (slight and most skillfully done) apply in-camera RAW NR. Canon is the only company that hasn't done it... so far.
Face it: the 7D has the BEST (and most honest) APS-C sensor in the market right now. NOTHING else comes close.
d) As a Nikon user, it's extremely dangerous for you to troll in this forum. If reported, you'll most certainly be banned.
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night86mare
Deregistered
wa wa wa..
like that i pentax user should just hide one corner..
tell you ar, you better not come into pentax forums. :bsmilie: :bsmilie:
so fierce for what?
night86mare
Deregistered
:bigeyes:
:bsmilie:
so in the canon section, canon fanboys are allowed to make sweeping statements and troll? :bsmilie::bsmilie:
You are always welcome here. :bsmilie:
It's not trolling. It's called chest thumping. :bsmilie:
night86mare
Deregistered
well, i proclaim my old k100d sensor the best aps-c sensor in the market and thump my chest proudly as well.
just kidding. i'm out of here!
I agree with Doodah, DXOmark is not a holistic benchmark approach to a particular camera. So does the ranking still hold water? I seriously doubt. DXOmark themselves already claim that their test are not total and they have not considered many other significant factor.
Just like car...having the most powerful engine on earth does not translate to a fastest car on earth and having the best handling.
Just like car...having the most powerful engine on earth does not translate to a fastest car on earth and having the best handling.
Tachyon
Senior Member
Firstly, I do applaud what DxO Labs is doing, although they are coming from a commercial viewpoint. I read the DxO Mark to add an objective dimension to the performance of the camera. With every camera, there are objective and subjective aspects. While the subjective aspects can be found in user reviews, particularly from professional (and even amateur users) photographers, we need some objective measurement to complete the picture, as one man's high IQ is different from another man's.
Secondly, as in any parameter which we measure in the real world, it does not capture the whole essence. How many of us will buy a TV based on specs? We still need to go down to the showroom and see for ourselves. What DxOMark is trying to do is give a standard (albeit imperfect) to compare across different brands, sensors, processing chips, etc. No one is expected to rush out and buy a camera based just on high DxOMark ratings.
Thirdly, any test result will depend on the equipment which is being sampled, unless there is a large sample size to calculate the statistics. The test also depends on the tester, on how consistent he/she applies the methodology. I have seen DxOMark scores change - probably someone did the test better or a more typical set of equipment was used? As I deal with testing regularly in my work, I am not surprised that figures do need to be revised.
Conclusion? I welcome any test, even though imperfect. I would not judge the performance of a camera based just on one testing method, but would gather all subjective and objective data to make a judgment. Just as one should not trust the reviews from only one reviewer, one should not trust one test to determine if the camera is superior or inferior.
Secondly, as in any parameter which we measure in the real world, it does not capture the whole essence. How many of us will buy a TV based on specs? We still need to go down to the showroom and see for ourselves. What DxOMark is trying to do is give a standard (albeit imperfect) to compare across different brands, sensors, processing chips, etc. No one is expected to rush out and buy a camera based just on high DxOMark ratings.
Thirdly, any test result will depend on the equipment which is being sampled, unless there is a large sample size to calculate the statistics. The test also depends on the tester, on how consistent he/she applies the methodology. I have seen DxOMark scores change - probably someone did the test better or a more typical set of equipment was used? As I deal with testing regularly in my work, I am not surprised that figures do need to be revised.
Conclusion? I welcome any test, even though imperfect. I would not judge the performance of a camera based just on one testing method, but would gather all subjective and objective data to make a judgment. Just as one should not trust the reviews from only one reviewer, one should not trust one test to determine if the camera is superior or inferior.
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The 7D definitely had a great improvement on the 50D. Whether there is a 60D coming out soon as everyone expects, this might really have a different set of new features over the 7D which I find incomparable. As Canon mentioned, 7D is a new category in the market.
It took me sometime to think whether to get a D90 or the 50D but I took myself away from this debate and took 1 step up, I'm not new to photography but I chose the 7D due to the adv AF, better ISO and flexibility with lenses.
New items will always come in but you can't stop Canon from improving their products, as everyone always says, 'you may have the best gear but if you don't have the eye, the gear is useless'.
AJGun
New Member
AJGun
New Member
WOW.....
D90 (#15) beat D300s (#19)
I should get the D90 instead D300s. Beats the price since the it's :thumbsup:
WOW.....
D90 (#15) beat D300s (#19)
I should get the D90 instead D300s. Beats the price since the it's :thumbsup:
Yes, that's how reliable DXOMark is. :bsmilie:
Oh wait a minute... the D90 does in-camera RAW NR which results in mushy photos at high ISO as proven here... so that's the secret.... and that shows how useless DXOMark is.
AbsolutKev
New Member
im using a 7d. i find it to be good. that s all i know. no problems that ppl are talkin about. but paying so much for a body, i kinda regret now. my wife's 500d is almost at par with the 7d iq when using the same lens. mayb should have gone for the 50D since i dont use the video function. save $1000 and can top up to get 17-55. but i guess its not the camera that makes a nice picture. even 1000d can produce magic in the right hands. so no matter wat camera u use, the cameraman/woman plays a part. u can screw up a photo with the best camera.
may it be nikon, pentax, canon, olympus.... in the rite hands, i ll kill.
may it be nikon, pentax, canon, olympus.... in the rite hands, i ll kill.
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