AF misses. Canon

ohrid wrote:

Hi! I have an old 450d Canon. I noticed my wide-angle lenses such as 24mm and 10-18mm are often misses the focus despite AF blinks as focused on viewfinder. I wonder is it camera's problem or what? Thanks

Wow - heck of a start to dpr.

Since your question is so general the answer needs to match it ( you need details to get a detailed answer ie something more than a why are my fotos $@#(* ) . The answer is " or what " .

Lets start with some basics - what's your equip :

eos 450d with which version of which lens

> non usm

> is

> stm

> " L " , ef , or efs for 24 and 10-18 is efs - yes ?    or did you use others ?       " such as "  ?

> or what ? 3rd party ?

imho - The lens ( or PPing ) is the limit to what I saw when you finally posted exemples - at least my 450(s) are taking much sharper pics with a decent lens - the is or stm from canon . Do you have an " or what " lens ? What is it ?

Your choice of 5.6 or 6.8 is of interest . The 450 can take really sharp pics at 9.0 to just about 12.0 without any ( or little ) diffraction . Why throttle it back ? Certainly 8.0 would've helped your cause as many lens have a sweet spot between 4 and 8 . I 've gone to 12 with good results for similar pics .

What did you use for pics : jpeg -v- raw ? With what software ? DPP v4 works well with raw from 450's as I recall - free from Canon too . So many details left out . . .

So many things - so many variables to cover - so the answer is " or what " .

And let's face it - it could even be an equipment issue - it is old - although capable if in good condition .

We can do more if you give us something we can sink our teeth into without spinning wheels though the above should give you alot to consider .