unsure if I can do this?

brad131987

brad131987

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Martin
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I brought a canon 7D but the focus is not Sharp ive read up on it being a problem with some cameras

But do I have the right to an exchange after 3 months or can I only get it sent off for a check and maybe fix
Or even get told there is nothing wrong

Any one had experience of this ?
 
All my lenses
So 70-200 L f4
Sigma 10-20 f4-5.6
And a 50 f1.8
And a few more low end canons
It's really soft on edges and blured even on tripod both manual and auto
 
Hi First try checking the camera/lens combinaton is focusing were it should be. Do this useing single point af ( manuely chosen point) Single shot Af. at max apature. If the focus is not at the chosen point you may be able to use macro adjust to correct it for each lens.
 
tried micro adjust with no luck on all points
yep also use center (single) focus spot
i shoot every thing from macro to distand stuff i dont have a set subject as such

any more ideas :)
 
send it to canon elstree.. its a 10 day turnaround and thats that :)

if you take it back to the shop.. they will then send it to canon.. will be quicker if you do it..
 
Hes got a camera.. a whole list of lenses.. hes tried tripod and hand held.. hes tried calibrating and hes still getting blurred pics and soft edges..

would be amazed if it was all fixed by going to ai servo :) Sorry but hes never going to be happy until he sends it back :)
 
Tried all settings -one shot -AI focus -AI servo
ISO 100
Fast shutter speed in the right light
All apatures

will ring tomorrow and see what they say
forgot to mention i go back to Afghanistan in less than a week
so cant send it away for another 3 month

might try begging see if that works
:)
 
KIPAX said:
Hes got a camera.. a whole list of lenses.. hes tried tripod and hand held.. hes tried calibrating and hes still getting blurred pics and soft edges..

would be amazed if it was all fixed by going to ai servo :) Sorry but hes never going to be happy until he sends it back :)
Click to expand...
Could have been if he has been shooting moving objects, and has a slow finger on single shot, tri-pod would make b****r all difference if the subject moves out of the focused area :p
 
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brad131987 said:
Tried all settings -one shot -AI focus -AI servo
ISO 100
Fast shutter speed in the right light
All apatures

will ring tomorrow and see what they say
forgot to mention i go back to Afghanistan in less than a week
so cant send it away for another 3 month

might try begging see if that works
:)
Click to expand...
Damn... got to be worth asking
 
only shoot moving targets hand held

you would have thought something with such a good focus system would be perfect
not close to like mine
 
70-200mm should behave very nicely both on static and moving subjects without much effort. As long as you press AF-on button and aim the focus point to the correct target.
 
Post a pic.

Nine times out of ten these things turn out to be user-error, or some misunderstanding, unrealistic expectations etc.

A pic or two is the only way to find out.
 
I'll take 3 pictures of same subject
With my 350d 400d and 7d
On tripod
All same settings
and post then all straight from camera

Should I do raw or jpeg large smooth ?
 
brad131987 said:
I'll take 3 pictures of same subject
With my 350d 400d and 7d
On tripod
All same settings
and post then all straight from camera

Should I do raw or jpeg large smooth ?
Click to expand...

That'll be interesting, but there's new info here - you have two other cameras. Presumably you're having trouble with the 7D, but not with the other two? In which case, that points quite strongly towards a camera issue.

But what the heck, post 'em up anyway :) Just process them as you normally would.

Edit: also post up a couple of the problem shots you already have.
 
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Will do
Just out at the moment
Then I'll see what the verdict is
 
Ive spoken to the camera shop and unfortinatly they cant replace it becouse its only replacible within one month of buying it

what is a good subject to do a test shot on?
 
brad131987 said:
Ive spoken to the camera shop and unfortinatly they cant replace it becouse its only replacible within one month of buying it

what is a good subject to do a test shot on?
Click to expand...

Just put up one of your problem pics. Or two, with tech details.
 
I would be interested to see the diffrence is shots taken from all the camera's.....I did have a few issues with my 7D and the cheap 50mm prime lens canon do...sold it and got the 35mm and works a treat.
 
I was never completely satisfied with the focus on my 7d , confirmed it in the end by trying a mates body on my lenses and getting much better results.
I sent it Canon Elstree they did what ever they do and its been fine since.

I recently had a look at someone elses 7d with soft focus issues, after a bit of lens swapping we suddenly realised it was the cheap filter he had on the lens really screwing the focus , he took it off and the difference was amazing.

Rob
 
ill take the pictures tomorrow
cant find my 350D at the moment
should have better light and try it around f22
couldnt get above f5 becouse its quiet muggy here
 
brad131987 said:
ill take the pictures tomorrow
cant find my 350D at the moment
should have better light and try it around f22
couldnt get above f5 becouse its quiet muggy here
Click to expand...

Why f/22? That won't do anything for sharpness at all (diffraction). Try to keep it below f/11 if you want it really sharp, and at lowest f/number possible to check focus accuracy.

What's wrong with posting some of the images that first gave you cause to suspect the camera?
 
if i was to do it on f22 it would have the full range of where the focus could be set at

i only ever use around f4 anyway

the ones that started it all are on a hard drive in Afghanistan which is about 4000 miles away so will need to take new ones :)
 
brad131987 said:
if i was to do it on f22 it would have the full range of where the focus could be set at

i only ever use around f4 anyway

the ones that started it all are on a hard drive in Afghanistan which is about 4000 miles away so will need to take new ones :)
Click to expand...

Okay.

But your OP said "the focus is not sharp" and if you shoot at f/22, a) diffraction will ensure that sharpness is poor anyway (avoid going higher than f/11 if you want best sharpness) and b) depth of field will be so great that you won't see any focusing problems.

Just take a normal picture, at lowest f/number and ensuring the shutter speed is fast enough to be completely shake-free. If there's a problem with the camera or lens, it should show up.
 
I suggest you access the attached link and follow the instructions carefully. It should show if you have focussing issues. It should also demonstrate if the issues are not soft focus but front or rear focus issues. As a control try your lenses with a different body and see if the results are the same, better or worse. This should help identify where the fault(s) lay and you could use the photos taken as examples if you need to send the camera away for repair.

http://www.dphotojournal.com/download-free-focus-test-chart/
 
tms789 said:
I suggest you access the attached link and follow the instructions carefully. It should show if you have focussing issues. It should also demonstrate if the issues are not soft focus but front or rear focus issues. As a control try your lenses with a different body and see if the results are the same, better or worse. This should help identify where the fault(s) lay and you could use the photos taken as examples if you need to send the camera away for repair.

http://www.dphotojournal.com/download-free-focus-test-chart/
Click to expand...

I don't like that test chart. It is shot at an angle, which is a bad idea to start with. But even worse, it is too small and has to be used at an artificially close distance. It is notorious for throwing up errors where none exists.
 
i was thinking that.
ill take a picture of an edge of something if that would work
 
Martin,

If you can think of something that would be relatively simple for some others to have a go at copying, maybe some similar photos could be compared?

(I have 7D, 70-200 f4 and 50 f1.8 as well)
 
Hi Martin,

Here's a shot from my 7D....I would hope to think this is sharp in most peoples eyes.


7258197708_d8f51bf2d4_c.jpg


Shot details below...

Lens 35mm USM
Exposure 0.017 sec (1/60)
Aperture f/3.2
Focal Length 35 mm
 
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