New 40D - Strange visitor

Looks just right from here.

-js

Excellent focus, nothings wrong at all IMO

In this particular case the focus seems perfect, anyway much better than the Duck.

Btw Keith R, yesterday I got my 40D back from the Canon service center and guess.....all focus problems are gone. So the the comparision you make about the judgement of 40D owners with a focussing problem does not make sense at all.

Thanks very much for your time guys. I'm going to be giving my 40D a good run over the next couple of days, so we'll see how things turn out, but the "lens" shot i posted does seem to be pretty sharp at the point i actually focused on, so that's a relief

Thanks again guys

painter24 wrote in post #4243460
Thanks very much for your time guys. I'm going to be giving my 40D a good run over the next couple of days, so we'll see how things turn out, but the "lens" shot i posted does seem to be pretty sharp at the point i actually focused on, so that's a relief

Thanks again guys

I mentioned before about returning two 40D's with front focus issues, I should have also mentioned they were both okay on close-up.
As you said, give a good test and see what it's like, let's hope you don't have a problem.

Brian

avandijk wrote in post #4243355
So the the comparision you make about the judgement of 40D owners with a focussing problem does not make sense at all.

Of course it does.

Just because you might have had a problem, it does not mean that everyone else has - and this thread is perfect proof of that.

Brianbar wrote in post #4244071
I mentioned before about returning two 40D's with front focus issues, I should have also mentioned they were both okay on close-up.

Hi Brian, did you mean the copys weren't front focusing when looked at more closely by Canon?

Did a few focus chart tests, weirdly enough, the ones i took in AV mode looked as if my copy was/is front focusing, however, this shot, which was done in "P" mode (i did this to try and eliminate user error as much a possible), seems to be on the button. It was shot with the 50mm 1.4, at f4, 1/60. The area of sharp focus appears to spread equally from the centre line to somewhere between the 14 and 20mm area where it begins to lose sharpness. So, all i can deduce from this is that i'm a complete noobcake, and that i've got a nice steep learning curve to ascend in order to master this camera. Any thoughts on this guys?

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Excellent result. Of course, you should get the same result in Av as in P.

When you shot it in Av did you also select f/4? Did the camera end up at 1/60 also? I ask this because autofocus sometimes doesn't work well in poor light.

Anyway, you should be pleased with your results. Now you can either run a hundred more tests to sort out the discrepancies or quit while you're ahead.

-js

painter24 wrote in post #4244894
Did a few focus chart tests, weirdly enough, the ones i took in AV mode looked as if my copy was/is front focusing, however, this shot, which was done in "P" mode (i did this to try and eliminate user error as much a possible), seems to be on the button. It was shot with the 50mm 1.4, at f4, 1/60. The area of sharp focus appears to spread equally from the centre line to somewhere between the 14 and 20mm area where it begins to lose sharpness. So, all i can deduce from this is that i'm a complete noobcake, and that i've got a nice steep learning curve to ascend in order to master this camera. Any thoughts on this guys?

Thanks again btw

Perfect focus, spot on!

Ive had my 40d from day one, and have never been too happy with it.
I took a lot of photos today,very suuny and warm, and mainly use center focusing, and recompose and take the shot, but still quite often I get soft shots
Some are sharp, but not too many.

I have had a D60 from 2002, and never had any issues at all, and actually used to be a paid full time photographer taking photos of customers driving racing cars, bikes and rally cars at speed and static, so I do have a quite good idea as to what I am doing. Mainly in TV mode which I prefer to use.

I would have thought that this camera would be "easier" to use than the D60, but I am actually finding getting decent shots a lot more difficult than with the D60! I also seem to think that it overexposes slightly on a lot of shots. ( I shoot RAW ).

I have put off taking the camera back to the shop, but I think I will have to and just see if it is me, or if the camera needs re calibrating.
I could be totally embarrassed if it comes back from Canon, and they say it's totally fine!!

number six wrote in post #4245057
Excellent result. Of course, you should get the same result in Av as in P.

When you shot it in Av did you also select f/4? Did the camera end up at 1/60 also? I ask this because autofocus sometimes doesn't work well in poor light.

Anyway, you should be pleased with your results. Now you can either run a hundred more tests to sort out the discrepancies or quit while you're ahead.

-js

Hi number six, just had a peek at the "AV" shots, they were done with f1.4 at 1/200. Also, with the "P" mode shot, i moved in closer with the tipod/40D, as i felt i was too far away from the chart when i did the first lot in AV mode. Just some thoughts on the f1.4/AV test,....do you think the very narrow DOF at 1.4 and a non-optimum distance from the chart, could give inacurate results?

As for running more tests, i do intend to, but i'm going to a gig shortly in a church, that my friend's organising, and he invited me to come and take some shots if i wanted, so its going to be a pretty tough challenge, lets see what happens. From what he says, the lighting's quite good, so lens wise, i should be fairly ok with the 17-55 f2.8 and 50 f1.4 without flash. Wish me luck, i'm going to need it

Ben Daniels wrote in post #4245126
Ive had my 40d from day one, and have never been too happy with it.
I took a lot of photos today,very suuny and warm, and mainly use center focusing, and recompose and take the shot, but still quite often I get soft shots
Some are sharp, but not too many.

I have had a D60 from 2002, and never had any issues at all, and actually used to be a paid full time photographer taking photos of customers driving racing cars, bikes and rally cars at speed and static, so I do have a quite good idea as to what I am doing. Mainly in TV mode which I prefer to use.

I would have thought that this camera would be "easier" to use than the D60, but I am actually finding getting decent shots a lot more difficult than with the D60! I also seem to think that it overexposes slightly on a lot of shots. ( I shoot RAW ).

I have put off taking the camera back to the shop, but I think I will have to and just see if it is me, or if the camera needs re calibrating.
I could be totally embarrassed if it comes back from Canon, and they say it's totally fine!!

Yep, i must be honest, i've been in the garden this afternoon, and i can't truthfully say many of the shots were sharp. At the moment, i'm putting it all down to my 1/ inexperience with this camera, and 2/inexperience with DSLRs,(previously used film SLRs, but have been out of the whole game for a few years) so i'm going to give it some time and see how things progress. Hope you find your solution Ben.

painter24 wrote in post #4244433
Hi Brian, did you mean the copys weren't front focusing when looked at more closely by Canon?

I still had the front focus issue, but for some reason they were okay on close-ups.

How's Liverpool doing against Blackburn today?
My home team (Portsmouth) won 4-1 against Newcastle.

Hope the 40D works out okay for you.

Brian

painter24 wrote in post #4245133
Hi number six, just had a peek at the "AV" shots, they were done with f1.4 at 1/200. Also, with the "P" mode shot, i moved in closer with the tipod/40D, as i felt i was too far away from the chart when i did the first lot in AV mode. Just some thoughts on the f1.4/AV test,....do you think the very narrow DOF at 1.4 and a non-optimum distance from the chart, could give inacurate results?

I suspect the difference is in the distance. There's no reason to assume that a lens is going to focus with the same accuracy at different distances, AFAIK.

I read somewhere on POTN that Canon's focus test is done at a distance of 50 X focal length. I think the next time I do focus tests I'm going to shoot at 50X, then again maybe at 20X to see if there's a difference.

Of course, 50 X focal length will give the same field of view with any lens (on the same camera), so it's only necessary to measure once and for later shots position the camera for the same size image.

I'd do the tests today but I'm remodeling my computer room to allow space and lighting for a mini-studio. First things first, I guess...

-js