I have now owned two 7D bodies and returned both of them; the first for AI Servo AF issues, and the second for what I deemed to be excessing maze artifacts.
I am not trying to be controversial. In fact, I have refrained from posting this information here for a couple weeks as I didn't want to add to any "hysteria". I really like this camera, but it's got to work right.
However, my first camera did not seem to produce particularly soft images, nor did I notice much mazing. Regrettably I did not have an opportunity to do controlled testing between the two cameras, but I have the distinct impression that image quality of my first copy was not as affected by the issues currently being discussed. I've gone back and looked at some of the files in light of the latest information, and I still think they are fine.
So perhaps there is some sample-to-sample variation on the IQ front as well as on the AF front?
garyvot wrote:
I have now owned two 7D bodies and returned both of them; the first for AI Servo AF issues, and the second for what I deemed to be excessing maze artifacts.
So perhaps there is some sample-to-sample variation on the IQ front as well as on the AF front?
A separate thread dedicated to "maze artifacting" seems to have been started?
Gary, thank you for posting this. I have always found your contributions to the forum to be well considered and informed.
I have pretty much decided that I too will be sending back my second body as well as the first, despite the apparently good performance of the second body on the IQ/mazing front.
First body: big bad spot on the filter over the sensor; only later did I discover the mazing characteristics of this body. Also experienced a mysterious "Error 40."
Second body: the glitches mentioned at the top of the previous page, plus: problems with One Shot AF on static subjects - microadjustment needed on every lens I've tested & varying, depending on conditions (I thought I had read somewhere about reducing focus differences in different lighting/spectrum conditions... well, as far as I can tell, it's too early to declare victory). [In contrast, my 50D, while exhibiting some AF dependence on illumination spectrum, generally gives excellent AF with zero MA for my three L zooms, and low single digit MA for my two primes. And I even trust it to focus my EF50/1.4, which no prior x0D body did reliably.]
I completely agree that I too really like the 7D (want to love it). I like the 7D so much that, as an inveterate body upgrader (hobbyist variety; 10D-20D-30D-40D-50D), I am sure that once I get a good one, I will be happy to hold on to it and not feel like "I gotta have" the next one. But I need to get one that works like it's supposed to. It drives me nuts to think that I am even considering putting up with the issues I've mentioned ("just send it in to Canon") because of the low mazing exhibited by the second body. I think I'll check out a third, but if it's not right, I may need to stand pat with the 50D for a while.
garyvot wrote:
I have now owned two 7D bodies and returned both of them; the first for AI Servo AF issues, and the second for what I deemed to be excessing maze artifacts.
I am not trying to be controversial. In fact, I have refrained from posting this information here for a couple weeks as I didn't want to add to any "hysteria". I really like this camera, but it's got to work right.
However, my first camera did not seem to produce particularly soft images, nor did I notice much mazing. Regrettably I did not have an opportunity to do controlled testing between the two cameras, but I have the distinct impression that image quality of my first copy was not as affected by the issues currently being discussed. I've gone back and looked at some of the files in light of the latest information, and I still think they are fine.
So perhaps there is some sample-to-sample variation on the IQ front as well as on the AF front?...Show more →
cameron12x wrote:
How are folks "sending their 7Ds back?" Directly to Canon under warranty, or through the retailer/vendor from which you purchased the camera?
I too want to LOVE this camera, but I also want a copy which performs as expected.
Through the vendor. I'm very glad I didn't purchase from the place with a substantial discount, but "no returns accepted on this item."
paulfeng wrote:
Through the vendor. I'm very glad I didn't purchase from the place with a substantial discount, but "no returns accepted on this item."
you are really going to send back that copy that has less mazing?
skibum5 wrote:
you are really going to send back that copy that has less mazing?
I'm not 100% decided yet, but how confident are you that Canon will cure goofy AF and odd glitches on their first try if I send it in to them? I kindof like having those beautiful clean images reliably in focus, and I like the camera to respond when I ask it to.
I have 30 days from purchase to return, so I may keep the second body around a bit longer to see if the glitches recur.
Very funny stuff... I had that "3rd brick" problem also...
Seriously I had a AF focus problem with my 7D and returned it to Canon Service Center in Irvine. Got it back a week later and all my lenses have 0 adjustment and the AF focus problem is solved. I had done some MA adjustments on my 50D and was familiar with the process... however, since my 7D AF focus problem was with all lenses I decided the problem was not me or the lenses but the body. Canon agreed when I talked with them and apparently they have the right calibration code to correct anything that was not correctly set at the factory.
I was looking at DPR this morning and saw a post where someone asked if his image was sharp enough at 200% to be consider okay.... and the beat goes on....
John McLean wrote:
Seriously I had a AF focus problem with my 7D and returned it to Canon Service Center in Irvine. Got it back a week later and all my lenses have 0 adjustment and the AF focus problem is solved. I had done some MA adjustments on my 50D and was familiar with the process... however, since my 7D AF focus problem was with all lenses I decided the problem was not me or the lenses but the body. Canon agreed when I talked with them and apparently they have the right calibration code to correct anything that was not correctly set at the factory. ...Show more →
Thank you for this information. Maybe I should keep my second 7D after all & send it in...
I am still having fun trying to go through the book and set up all the functions I need. The one thing I have noticed is that you have to be carefull of the shutter as it appears a lot more sensitive that other cameras. Even in 1 shot it is so easy to fire off a shot.
L. H. Smith wrote:
Our differences are of principle, I hope, not animosity fueled. ;-)
Non-smoker.
"Too many" is subjective, of course.
Some "folks" HAVE started other threads.
Your "close it" suggestion wasn't a pre-req for them to start anew.
Consider your comment about "those not interested", in the light of the fact that YOU and I, and many others are in fact reading this thread.
Given the continued voluntary(!) participation of a number of apparently still-interested members, I react negatively to someone's self-appointment as "That's enough!"-judge.
"I'm no longer interested in this conversation, so everyone shut up!" strikes me as a form of wannabe censorship. You are free to choose your own word.
When someone sticks his head up to protest a thread's continuation, rather than using the option YOU offer above - "not-interested/don't-read", it stirs my wack-a-mole impulse.
Threads die natural deaths, and fade into the archive recesses. If they reappear on a given day, simply clicking on the last page will show what, if anything, has been really added.
And, as you indicate, anyone who has "had enough" is free to not-click on the topic.
I will just close by saying that I react negatively when the word "censorship" is used to describe the point of my post. I believe now that was probably not what you really meant.
John McLean wrote:
Very funny stuff... I had that "3rd brick" problem also...
Seriously I had a AF focus problem with my 7D and returned it to Canon Service Center in Irvine. Got it back a week later and all my lenses have 0 adjustment and the AF focus problem is solved. I had done some MA adjustments on my 50D and was familiar with the process... however, since my 7D AF focus problem was with all lenses I decided the problem was not me or the lenses but the body. Canon agreed when I talked with them and apparently they have the right calibration code to correct anything that was not correctly set at the factory.
I was looking at DPR this morning and saw a post where someone asked if his image was sharp enough at 200% to be consider okay.... and the beat goes on....
Same here. Mine went to NJ but was a body issue. Calibration. I think I will not bother with the MA adjustments with what I see so far. What I would give to live within driving distance of Irvine or NJ. All my lenses would go in with each new body.
Hi Zenon Char,
this is the sharpest crop i've seen. What is the exif info and how did you process it?
Better yet, can you share the raw file? For the tripod on the rocks one.
thanks!
