Should i send my 10d for callibration?

[paule]

Hello all.. Is this 100% crop of my flower seem sharp. I keep wondering if i should send my 10d body for a focus check. I done a little test myself on a chart i got from this forum and it did seem out of focus when i shot it wide open but how often would i use it like this? Also, would being out of focus @f1.8 affect all apertures?:confused:
Body not a year old yet but i bought it secondhand so iam wondering if this is why he sold it on!
Havent sharpened picture at all, this is straight from camera with 50mm mk2 , AV 5.6, TV 1/45 ISO 400..
Also how much would canon charge for this service in english pounds...
Apart from sharpness i love the camera..
Thanks guys..

[glangston]

I'm curious also about sharpness. Would like an opinion on this pic. 20D, 50mm 1.4, details are ISO 400, 1/2000, f/10

http://home.socal.rr.com/glangston/Hibiscus.jpg

[Pekka]

To me it looks like both those shots just need some USM. To test focus calibration see http://photography-on-the.net/forum/showthread.php?t=10526

[IanD]

Paul,
Like Pekka said, a little USM (Unsharp mask) can help. I took the liberty of running your image through Photoshop and applied a medium dose.
http://www.pbase.com/giant001/image/40767051.jpg
See the difference?

[John57]

I had two 10D's that Canon accepted were wrong and replaced because of focus problems.... they were not like your picture - as has been said, your photo looks like it needs a bit of USM and thats all.... for straight from the camera it looks fine to me from a 10D.

[slin100]

For the first image, was the camera mounted on a tripod? 1/45s is a bit slow for a 50mm on a 1.6x format camera.

[KennyG]

Paul, that looks perfectly in focus to me, neither front or back. All the detail is there, it just needs some USM to bring it out. Ian's attempt has over-sharpened it and you should really work on the original, not a reduced web version.

If it is keeping you awake at night, then Lehmans of Stoke on Trent are probably the best for setting up a 10D and will turn it round much faster than Canon. However, as I said, I think your problem is not using post-processing correctly, not a camera issue.

[PhotosGuy]

For the first image, was the camera mounted on a tripod? 1/45s is a bit slow for a 50mm Right. I'd have tried to eliminate that variable with a tripod AND a faster shutter speed.
it did seem out of focus when i shot it wide open but how often would i use it like this? Well, I'd shoot wide open if I was checking the focus. What's the point of stopping way down & then saying everything looks OK?

[IanD]

This will teach me to try and process an image on my laptop:)
Just looked at the results on the CRT desktop and boy, did I ever over sharpen. sorry 'bout that.

[paule]

Thanks for your comment.. It has kept me awake some nights BUT thanks to you guys your comments have put my mind at rest.. Thanks again..
Photosguy said that shutter speed is slow for a 50mm! what sort of speed should i use handheld, i admit i didnt use a tripod for that shot.. Whoops..

[PhotosGuy]

what sort of speed should i use handheld About 2 stops faster than the one where you can reliably hand-hold. You've tested to find out what that is, right? Haha! Seriously, you must eliminate that variable.
I suggest that you shoot from wide open on up to see where the lens is sharpest - probably 2-3 stops up from wide open. Then go out & take pics & never worry about it again! ;-)