70D focus issue & blurred pictures

nicksoti wrote in post #16837980
Hello everyone, sorry for bad english.

I have similar problems with my 70d, mostly with sigma 18-50 2.8-4.5. It was purchased by greek store, but propably German import as there was not greek language printed manual.

Just take a look in this greek forum I posted samples,

http://www.dpgr.gr …8.msg771270;top​icseen#new

first 3 with center point at "epson" logo. No problem with nearby af points as shown next. At 18mm, f2.8, 1/200, OS on, handheld me sit on chair, target distance about 50cm. It does not hapen if target is very bright and with great contrast.

Also have Tamron 28-75, canon 40mm stm, only sporadic problems with them, not something i can reproduce constantly but just a feeling that AF is not always very sharp as it should.

Will sent it to canon service tomorrow, glad to give any add. info or try some shots till then.

Have you tried the af points from the center to the right? I read in other forums that these points have problems too.

Jiggo0109 wrote in post #16839443
Have you tried the af points from the center to the right? I read in other forums that these points have problems too.

I have only tried nearby left and up points. Will try tomorrow.

nicksoti wrote in post #16837980
Hello everyone, sorry for bad english.

I have similar problems with my 70d, mostly with sigma 18-50 2.8-4.5. It was purchased by greek store, but propably German import as there was not greek language printed manual.

Just take a look in this greek forum I posted samples,

http://www.dpgr.gr …8.msg771270;top​icseen#new

first 3 with center point at "epson" logo. No problem with nearby af points as shown next. At 18mm, f2.8, 1/200, OS on, handheld me sit on chair, target distance about 50cm. It does not hapen if target is very bright and with great contrast.

Also have Tamron 28-75, canon 40mm stm, only sporadic problems with them, not something i can reproduce constantly but just a feeling that AF is not always very sharp as it should.

Will sent it to canon service tomorrow, glad to give any add. info or try some shots till then.

Can you advise what is the first three digit of the serial # of your camera (note: mine was 062 and it has this issue)

07302 first 5 digits.

Other issues I have noticed, not regarding center af poinτ:

- with tamron 28-75, during video and autofocus, after few seconds message "lens not atached" or something. Emailed to canon and tamron europe, tamron said they are aware of problem and preparing a firmware fix. Same said local tamron dealer.

- If in dcim folder there is a .cr2 file with altered exif information (as with exif tool), error 80 on lcd appears and camera non functional. I change exif info in .cr2 camera model to 6d in order aftershot pro can open raw files. Of cource this is a bug, not real problem, i do not usually edit files in sd card, but drove me crazy because there was 1 such file in sd card.

My 70D number starts with 03302 so add it to the list

Scoobert wrote in post #16835003
I have yet to see one come back fixed. The 2 that I have seen come back the paperwork references making an electronic adjustment to the center focus point. Neither were fixed, they were sent back to the customer as still broken unit but adjusted the best they could get.
Mine is due back next week so we shall see, but I am not holding out much hope that it will be fixed.

Please keep us posted when your unit gets back, still observing mine and will go to canon if reverts to its previous behavior. One thing I noticed is, the lens attachment's to the mount is not very firm, there is a little play (wobble) when I turn it even in its in locked position, is this normal? Just curious.

Hello everyone. Last year, when I had a 70D and a Sigma 18-35 1.8, I too noticed these issues; I mistakenly attributed them to the 18-35.

When out taking photo's with this combination, especially at f/1.8, I noticed maybe even more bizarre behavior than some of you have reported. Two examples that come to mind were both shot with the center AF point, f/1.8, one shot with AI servo.

In a open field, with a tree line in the center, and a yellow and orange tractor trailer parked right in front of that tree line, I focused on the trailer. I am also standing in a small parking lot where a jeep is in the lower 1/5 of the image, with no AF points touching that jeep, and took some photos. The trailer is literally at least 800 feet from me and that jeep was the only thing in focus. I did this at 18mm and 35mm, same result.

The other example was taking some shots in downtown Asheville, NC. The subject was the BB&T office building on a very sunny day. With the center AF point on a nice area of contrast, about 2/3 of the way up the building, I took several shots; some at 18mm and a couple of pic's were in the 24mm range. Again, the cars that were parked along the street next to me, which were nowhere near any AF points, were sharply in focus. The BB&T building was at least 1000 feet away.

I never noticed any problems with this lens/camera combo when taking photos of subjects that were maybe 3-15 feet away. Anyways, I returned the 18-35 and sold the 70D. I now know it was the 70D at fault. I am glad I read this thread, because I was thinking about picking a 70D; I will pass and wait on the 7D II.

I just checked my photo's, and the pic's of those two examples, have been deleted. I found maybe 100 pic's taken with the 70D/18-35 that were sharp and in focus, but they were all at distances less than 15 or so feet.

joeblack2022 wrote in post #16604591
Also, the 70D is a newer body and there have been reports that FoCal doesn't work properly with the 5D3.

I appreciate that this is a 70D thread but do you have any more information or links on that? Thanks

Spent about 30 minutes testing with a Sigma 30mm F1.4 lens (Old one). I used a well lit table (18w energy saving daylight bulb overhead) and small figures spaced evenly apart. Camera on tripod, mirror lockup, 2s timer. Av priority at F1.4 ISO 100. Not sure on distance but tried to get as far back as I could while still being able to put the figures in the center AF point. Took a whole bunch of photos using LV and VF and it hit the middle one every time and there was no discernible difference zooming to 100% that I could tell. I put the lens OOF everytime to make sure. Not very scientific I know and I will be aware of this possible issue when out and about. I also tried the AF above center and it was no sharper.

UK serial 04302

No issues with mine as I stated earlier. My serial in U.S. Is 04202. Is it possible that by the time they got to the 04 serials that the problem disappeared? Anyone having this issue with a 04 serial number?

jay125 wrote in post #16853732
No issues with mine as I stated earlier. My serial in U.S. Is 04202. Is it possible that by the time they got to the 04 serials that the problem disappeared? Anyone having this issue with a 04 serial number?

This would make sense if canon sent back new cameras or repaired cameras for the people that sent them in. If the problem stopped it would mean, at least to me, that canon is not only aware, but recognized and rectified the problem. Why wouldn't they then just fix the broken ones that people are sending in for service, rather than claim either nothin is wrong or "it's adjusted as best as it can be".

jay125 wrote in post #16853732
No issues with mine as I stated earlier. My serial in U.S. Is 04202. Is it possible that by the time they got to the 04 serials that the problem disappeared? Anyone having this issue with a 04 serial number?

Mine has this problem and its an 0620.

Frodge wrote in post #16853927
This would make sense if canon sent back new cameras or repaired cameras for the people that sent them in. If the problem stopped it would mean, at least to me, that canon is not only aware, but recognized and rectified the problem. Why wouldn't they then just fix the broken ones that people are sending in for service, rather than claim either nothin is wrong or "it's adjusted as best as it can be".

I believe Toby touched on this in his last youtube video about the blurred images. He thinks the test canon runs on these cameras is not at a long enough range to show the problem to the tech. If the tech is in an 8X10 room attempting to fix them. The problem is not going to present itself and he is going to say its within specs. Even though the camera is still borked @ 20 feet.
Toby is going to send his back into repair AGAIN and see if he can make them check the focus at a longer range. My camera will be back this week, but I have ZERO faith that canon actually fixed it.

Just sell it. I would just cut my losses and get something else.

Frodge wrote in post #16854069
Just sell it. I would just cut my losses and get something else.

That has crossed my mind more then once. Since I only paid 949 for it and most all of my lenses were used when i bought them. I really am considering putting it all on fleebay and picking up a D7100.