In german but you get the idea of the quality of UWA lenses by watching the pics:
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The 5D MkIII meter, as all Canon cameras have for years, meters to 12% gray, NOT the 18% gray that is the normal presumption. 18% gray gives you a histogram spike in the middle stop of a histogram. BUT 12% gray gives you a spike in your histogram 2/3 stop below middle gray.
Your camera is working to specs and as it is intended. Some suggest the "underexposure" is due to digital captures being very sensitive to over exposure, but that just is not the truth, pre digital Canon's and Nikon's meter 12% too.
A more interesting question would be "why did the camera industry decide 12% metered scenes give a "better" exposure?" My answer would be that they considered the options and decided that gave more even and "correct" exposures more often than 18%.
Looks like the shutter broke to me.
How would that cause the image to step out of line in random bands ?
Looks like corruption in the card/reading/transfer somewhere to me.
my question is ,
does anyone know what Canon "does" when they take both the body and lens for calibration?
I sent in my 24-70II since I noticed that it's not as sharp as my friend's copy (we bought them one week apart). I also mentioned that it's back focusing and that I've tried using AFMA but haven't got it right and would appreciate if that can be looked at too. To my surprise I was told that AFMA "shouldn't be used" except for "special" cases. I said, that I've been doing it all the time with all my bodies and lenses. After I sent a complaint to the person in charge of after sales/ warranty, I got a call saying that the "bad focus" is because I set AFMA and that it's stored in the ROM of the Lens..I dont know if this was a communication/understanding error on his part as Canon really stores these calibration values in the lens. That is something the end user cant do. AFMA via the menu is different as it is a user configuration thing. Perhaps he mixed that up.
My first words "Bull $hit" I couldn't help myself. It was obvious the person talking wasn't technical. I asked, so you mean to tell me that if I set AFMA for the 24-70II on my 1DX those settings are stored on the lens.. Reply.. YES.. .. I explained why this was complete Bull$hit.!! by asking "so that means, I can't use this lens on my other camera bodies.. SILENCE..Well, Canon support is sometimes lazy and they just do nothing with your gear. They just send it back and pretend to have done something.
Long story short.. I was asked to send my my 1dx which they just "reset" ALL my AFMA settings and they re-flashed the ROM on both the 1dx and 24-70II and asked me to "retry".
I just finished testing using lensalign, (didn't feel like using focal pro). my manual testing resulted in (-4,-4).. Same as what I got with Focal Pro on the first day I got the 24-70II.
Any thoughts.. the CPS guy I spoke to wasn't very helpful.. He kept insisting that I should use the multicontroller/joystick to "SELECT the focus point"Very helpful indeed...
you can imagine my frustration explaining DOF and that the little red square that's on the object tells me where I focused, and that object isn't sharp, hence SOMETHING is wrong. I asked him, do you take photos, he replied yes, I said I'm sorry but you're no photographer.. kinda mean, but I couldn't help it!!!!
Ok Rant over!!!!!!
Is the price drop really from Canon, or is it from retailers? I would be really curious to know whether Canon themselves is actually getting less per unit with recent drops to $3100 and $2900 and such, or whether it is simply that the initial 5D III Feaver has warn off? That all the pre-orders and early buyers who were anticipating the 5D III for years and were going to get one regardless are now done, and now retailers are trying to attract the more careful, price-wary buyers? Canon doesn't get $3500 a pop for each 5D III sold...they get something in the mid $2000 range. It is the retailers who are trying to build sales...and I assume that for all the prices down to the low of around $2700 I saw recently, they are still making a profit...as is Canon.
The CR guy can see which country I'm in because of my IP address. But I can block or hide my IP address from any internet Proxy Server (some hackers can actually have a different IP address display e.g. to show that they're in New York when they're actually in Poland!). So your GPS idea would not work - hackers would find a way around it.
Secondly, why on earth would Canon Inc. or any other consumer electronics manufacturer wish to sell a 'dumbed- down' product for more money in Europe than a superior one (in capabilities) in the USA for less money (as prices there are already cheaper even accounting for FX rates + local taxes)?
Apple Inc. does not have a British iPhone 5 that is inferior to a Norwegian (non-EU) iPhone 5, nor would they ever consider doing that to their product lines. Can you imagine an Australian iPad 3 have lower resolution than an American iPad3. The 1DX is the 1DX no matter where you buy it in the world, and that is how it should be.
If a hacker bypasses a GPS (VERY DIFFICULT), then it's on the camera owner, not Canon.
is it just me, or do I see two test charts?
You do. One is his 28mm, the other his new 24L
interesting. why does the op own a test chart?