Out focus of 300D

[tony723]

After trials of several times of 300D, sometimes I found that the focus is not so accurate, here is an example:

http://www.fotop.net/albums/hktraveller/300d_out_focus/outfocus.jpg

Is it possible be 300D problem?

Thanks!

[vvizard]

It would help a great lot, if you gave us some info..

What part did you focus on, or at least intend to focus on?
Are you absolutely sure the cam flashed the proper AF-point red to verify focus where you intended?
What aperture did you use?

And lastly, to me, it looks like almost the entire frame is close to decent focusing, at least after some USM-magic

[scottbergerphoto]

It seems that the glass bubble in the lower left is perfectly in focus. What was the active focus point? The Canon autofocus system will focus on the closest object it finds unless you force it to do otherwise. Vvizard made some good suggestions above as well. If you think you have a focus problem after taking a bunch more shots, do a search above on "focus test".
Scott

[tony723]

scottbergerphoto wrote:
It seems that the glass bubble in the lower left is perfectly in focus. What was the active focus point? The Canon autofocus system will focus on the closest object it finds unless you force it to do otherwise. Vvizard made some good suggestions above as well. If you think you have a focus problem after taking a bunch more shots, do a search above on "focus test".
Scott

I am using the central focus point to focus on the central part of the christmas tree.

I did not apply USM but just resize the photo to 600x400. Maybe the resized photo is too small that the softness is not so apparant. It is quite soft when I see the original photo in my 17" monitor.

[tony723]

One more point, I am using the default 18-55mm EF-S len come with 300D.

[defordphoto]

When shooting like that be sure to keep an eye on the f-stop. If you're running wide open or near wide open there WILL be some areas of a photo such as that out of focus.

Also, don't assume that a photo out of focus is automatically the camera's fault. AF has limits and is not fault-proof. It's actually fairly easily fooled and you do need to learn its limitations.

Have fun shooting!

[Malaxos1]

I don't think it's too soft. It looks like it needs to be sharpened a little. Standard for DSLRs...

[ilya]

Your aperture is 3.5, and your shutter speed is 1/30. A bit shallow and a bit slow. Was this hand-held?

Did a couple of rounds of USM, and I'm not sure if this is any better.

http://images.fotopic.net/?id=1999171&outx=600&noresize=1&nostamp=1

[Malaxos1]

I agree, 1/30 hand held is asking for blur. I do think the sharpening is a bit to much myself.

[Jim_T]

ilya wrote:
Your aperture is 3.5, and your shutter speed is 1/30. A bit shallow and a bit slow. Was this hand-held?

Ouch.. 1/30 is pretty slow if it was hand held.

What was your ISO setting ? For shooting indoors, it wouldn't hurt to bump it up to 400. Images are still very clean there. That way you'll get a faster shutter speed and perhaps a bit smaller aperture.