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-   -   focus in the middle of pic, rest very soft (https://forums.steves-digicams.com/canon-21/focus-middle-pic-rest-very-soft-11829/)

fnuzi Jul 21, 2003 6:50 AM

focus in the middle of pic, rest very soft
 
please look this picture:
http://www.pbase.com/image/5937292

it is focus on the center of the pic, while in the bottom righ and bottom left (out of the circle) the grass is very soft.

Which setting do this effects?

How to resolve this problem?

thank you.

Fly Jul 21, 2003 8:06 AM

I'd say it's due to the f/2.8.
Try with a small aperture (f/8.0) to get a larger depth og field (DOF)
The "soft" grass in the lower corners (whitch is closer to you), is due to the small DOF.

(See http://www.dpreview.com/learn/Glossa...perture_01.htm )

Cheers

fnuzi Jul 21, 2003 6:09 PM

Quote:

Originally Posted by Fly
I'd say it's due to the f/2.8.
Try with a small aperture (f/8.0) to get a larger depth og field (DOF)
The "soft" grass in the lower corners (whitch is closer to you), is due to the small DOF.

(See http://www.dpreview.com/learn/Glossa...perture_01.htm )

Cheers

thank you very much!!
So this is a problem with all kind of camera?

.

NHL Jul 21, 2003 7:27 PM

Quote:

So this is a problem with all kind of camera?
Not really... it's actually a feature that a lot of people would pay extra to get even less of ! :lol:

Portrait for example where you want the subject to remain sharp in contrast to the blurry background, ie shallow DOF... For landscape you would want the reverse, ie larger DOF to maintain everything in focus like Fly advised.

mattUK Jul 24, 2003 12:23 PM

Hi,

Not sure if your camera has it but mine has a portrait mode - this apparently makes the edges a little softer but keeps the focus in the centre.

Is it possible that the camera could have been in this mode by mistake??

Just a thought...


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