1D to service

[mark kay]

When I asked a Canon USA repair center person they told me the only hardware update was something with the shutter that caused the horizontal band near the top. Chuck Westfall informed me that any camera with v1.2 had this corrected. Did you ever post some of the iso 200 banding shots? mark

ws

If a digicam is partitioned like most mixed mode systems, there is
a baseband digital section and an analog section. The analog
section crosses over to the digital section via an ADC.
Programmable ADCs like the TI TAFE1040 are common. What's
programmable is the delay and gain, which in turn likely "solve"
the banding issue if adjusted correctly. Here's the TI specs:

http://www-s.ti.com/sc/ds/tafe1040.pdf

Tom

after a week and one day, i got my 1D back from Canon HK.
I talked to the technician while the camera was in their service
center.
anyway, here is what they claimed they have 'fixed'
They just put down they have upgraded the firmware, which got me
all pissed off because I already upgraded the firmware to 1.30
myself before i brought in the camera. So i questioned the
technician, and after asking his supervisor, he said the 'firmware'
they are referring to is for the ANALOG portion, NOT the one I
downloaded from the web. Can ANYONE please tell me if 'Analog
Firmware' exist? or did the guy just make it up?
He also said he did not noticed any front AF problem that i was
experience. i did a quick test, and surely enough, the problem s
gone. weird...
anyway, i will be trying it out when the sun comes out. wish me luck.

ws
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ws

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ws

 

[WSLam]

why not?

It will be about a week. i brought mine in last Monday, got it the tues after... not too bad.
Just yell at them. and they let you talk to the technician.

I am using Tone Curve one with +1/3 and it's really quite ok. i will shoot something and post asap.

ws

I'm a 1D user in Hong Kong too....I have a serious banding 1D in my
hand now... :-(

I printed some photos today and I can see banding even at ISO
200.....so I'm deciding should I bring it to Canon, or I should use
the tone curve....

Do you think I should bring it back to Canon HK? are there any
improvement before and after? what about the tone curve solution?

Thanks

--ws

 

[Sam Lok]

NO, since I don't know how to post.....