Andre Goli wrote:
..Be careful, when I bought a 35L six months ago, I immediately tested it with my 5DII on fixed objects. I was at first disappointed because everything looked front focussed. Then, I changed it with the other lenses which have been always rasor sharp, and to my big surprise, there were blury as well !!!!!!!!! That surprised me... Strange.....Then I tried them again on my backup camera (5D), and then every lenses were sharp again, included the 35L.... Weird...... So I came back to my 5DII and checked out what was different in the options... My brother played with my 5DII just before, and changed the one shot focus option to the servo option, what I didn't know. I selected back the one shot focus option, and tataaaaaa, every lenses were sharp again on the 5DII, included my new 35L. I never shot servo, but if you want to test fixed subject, it is a very bad idea..... I am 99% conviced that is your case... I helped another fellow in Fred who had the same problem a while ago, he was pissed by a L lens he just bought, and got the same successful results after my explanations....... ...Show more →
I've experienced this as well.
I'm a believer that Servo is meant for use with moving subjects only - I think too many people make the mistake of trying to use it for everything they shoot.
So does anyone know what the new, to be released to the public any day now, firmware update is supposed to be for? Some of the newer cameras have firmware 1.0.9.0 on them.
I may be in the same boat, I'm still testing it. But I'm getting a lot more slightly out of focus shots than I think I should be getting. I first thought it might be my Sigma 70-200's fault and I needed to send it in. But the more lenses I shoot the more I'm starting to suspect that the 7D is randomly picking it's focus, back focus, front focus, all blurry and soft and dead on sharp, with equal chance of any one of those 4 results. I'm glad I haven't sold my 40D yet because I may have to send the 7D in Monday.
IanCale wrote:
I'm not one to comment what some people have to say but there was a reply basically saying if you have a low post count here on miranda you don't know what your doing, People have lives rather than gettin caught up with posting online .and what about the thousands of pros who dont post on here and one day they decide to, just because they do not have a high post count does not mean they do not know what they are talking about. . Thats one of the stupidest things I've read, , and honestly I'm thinking that some people here have never seen a sharp image. I shoot to sell, not to post online and get oh's and ah's, I upsize my images for large print , not downsize for web viewing . ...Show more →
I posted that comment and there's a reason. When someone joins a forum, and the vast majority of their posts are to bash one particular brand of product or another, or it appears that they're only trying to stir things up, odds are very high that they are trolling - posting solely to get a rise out of people. It's usually pretty easy to spot.
I've been around various forums and the pattern is almost always the same. Often, it's someone who has posted in the same forum in the past, but under a different name.
It's the kind of stuff you usually have to weed through on DPReview's forum.
Well I shipped mine back for an exchange. I talked to the manager and he had 2 returned with AF issues. One owner is a serious birder as well and the second one he got was supposed to be good. We'll see. This version update is sketchy as it is not confirmed. Here is a good one. Canon purposely messes up the AF on purpose just a little and then comes out with a firmware update within 3 weeks after the release that fixes everything. Now they look like heroes compared to that 1D fiasco. Now I will wake up.
Thanks Ian. You cleared that up well. I do have a life, I do this for a living, and so I just dont post much, I read what others post more often....and respond when I see BS.
I like to keep up with how many people are having issues vs whats good stuff. But hell, I dont know if most of these people know what good is anymore......
Tom....its not trolling. I just wanted to show support for a fellow working photog thats getting seriously miscredited.
I echo Ians statements right down to the MA crap. I need sharp images. I also shoot to sell. And i think the "super posters" dont shoot enough to know or have seen a sharp images. They spend too much time disecting the SNR's of new cameras in forums.
Screw that. Does it give me a sharp image....yes or no. If not, I know what will. And I dont have to look far back or too far over at the next brand.
Zenon.....now you are one of the supposedly few with an issue. You should strengthen your skills and leave the store manager alone. Its you, not Canon right
A little update on my 7D focus issues. (I've still got lots of testing to do).
I haven't ruled out the 7D having some kind of serious focus issue yet. But I've made some interesting observations as I've started going through my lenses in this ongoing test.
In controlled indoor conditions the Canon lenses are doing much better for getting sharp in focus images. Controlled being single point AF, non moving targets. etc. The non Canon primes seem to be doing "ok" most of the time as well. The non Canon zooms are complete crap. Useless completely useless.
Sigma 70-200, weird DOF, soft and more often than not beer goggle blurry. This is not the case with this lens on my 20D or my 40D and the times I've shot it on the 5D.
Tamron 28-75 Same results. Basically useless on the 7D so far.
Sigma 70mm Macro, seems to be sharp and spot on. (more testing in different conditions needed though)
Canon 50mm and 85mm: Both seem sharp though I think I had some issues with missed focus with the 85mm f1.8 outdoors with moving subject. But that could be AI Servo (more testing when it's daylight)
Sigma 30mm: Seems fairly accurate so far maybe not quite as sharp as it seems to be on the 40D.
Tokina 10-17 Fisheye: Sharp but then again it's not like infinity is hard to achieve with this lens. But so far it's been the most consistent lens on the 7D.
I don't know if this a case of off brand lenses not being "good enough glass" I kinda doubt it, even subpar glass wouldn't explain my results being this bad. Maybe they need to be calibrated or rechiped, with this whole new AF system it's possible I guess. It's like the 7D can't compensate for variable zoom off brand lenses or something.
Anyone else notice issues with Sigma or Tamrons?
PhotogDave wrote:
sav1977 - I was a quality engineer at a Mercedes plant. ...
That's funny. Weren't Mercedes cars rated as some of the least reliable cars with appaling customer service just a few years ago? Takes one to know one I guess.
saturos wrote:
Anyone else notice issues with Sigma or Tamrons?
I only have Canon lenses but I do have a Tamron 1.4x teleconverter. I took some test shots today with my EF70-200mm f4L IS and was very pleased. AF Manual Select - Expanded and it was extremely fast to lock focus and track the subject. Exposure varied a little ( 1/2 stop or so) in the burst of 8 or so images.
I am a hobbiest so what appears good to me may not be applicable for pro use or sale products. Here is one frame processed with ACR5.5 and then tweaked and resized with CS4. 448mm equivalent FL.
I thought I definitely had a problem regarding focus when I got the 7D. However, I have been reading the manual and the threads and things seem to be returning to normal. I checked the microfocus of my EF-S 17-55mm and that was tack sharp. I have now been going to the other lenses and using each one of the AF settings and getting a handle on what each one does.
I was pleased yesterday with some shots of my dog Deuce and finally felt the EF-S 17-55mm had not lost its sharpness when I connect it to the 7D. I still think the BETA ACR 5.5 is not providing the best available results... I hate to use DPP so am staying with ACR and waiting for Adobe to get the final out.
It was never my intention to miscredit the OP. Keep in mind that it is basically helpful behaviour to ponit out possible alternative explanations when someone are having problems.
Ian, can you at least post an image of the small car taken with tripod and manual focus with LiveView, to show us how sharp your copy of the 28-135 can be at 135 mm, and to show us how you wanted the focus to be any better than it is after MA.
Milan Hutera wrote:
Well... ever thought about the fact it *might* not be the camera?
maybe the 7D is to complex...maybe sell everyyhing and get a g10 because it has more MPs than the g11 makes as much sense not knowing how to use the camera/lenses the right way..but instead post a couple of user error pics and it automatically Canons fault...I am pretty sure if you jus reset your 7D to factory specs...you know what the settings were before you opened the box..sorry for the ran but damn this A/F is getting old...
btw why not POST great pics with the thing..instead of bashing every single aspect of a camera of which Canon is quite proud of and I dont think Canon purposly does this so you all on FM or is the DPR can waste bandwidth
I also must state that my 7D is highly inconsistent in focusing. I have taken over 200 shots, and the 7D is just not consistent in it's focusing. Keep in mind I have been focusing on a stationary building and have used all the different modes. I've tried it with my 24-70mm f/2.8 and the 100mm f/2.8 macro and the 50mm 1.8. Wide open seems to give the most unreliable results with about 75% being razor sharp. Stopped down the problem almost seems to resolve. I think the camera has a hard time with large apertures for some unknown reason.
I wish this camera's AF would be more stable, as the high iso performance is spectacular and I love the video. I will still be keeping mine... I am just saddened that the AF does not work as advertised. My 20d and 50D are more consistent in that department.
In regards to "user error" which seems to be what everyone seems to be blaming these problems on. I do not think there is much "user error" involved in a non moving stationary object in bright daylight. There definitely seems to be a fair amount of 7D's with this problem sadly. Whether it's 2%,5%, or 10% I do not know.
All I have to say, is please do not acuse every person out there stating they have issues with a camera, and just call it "user error" Look at the 1DMKIII. That ended up definitely not being user error...
