Have you Encounter this?

[crabmet]

Hi Guys

I would like to share something i notice to my shoot.

I am using a canon 40D with a lens o canon 24 105 f4 L lens, when im shooting with the last zoom which is 105mm and i think my subject is about 6meters away from my point the output is not so sharp hope you can give me some tips to correct my problem

thanks

 

[mikha]

how to decide sharp or not? can post your image?

 

[Rashkae]

1. This would be more appropriate in the Canon section.
2. A more descriptive topic title would help... Like "Canon 24-105 f4 L lens soft at 105mm?"
3. Read this review:
http://photozone.de/canon-eos/188-canon-ef-24-105mm-f4-usm-l-is-lab-test-report--review?start=1

In it you'll see that it is a bit soft at 105mm, you need to stop it down to about f/8 to get ok performance.

 

[engrmariano]

post the image you think its not sharp enough. my lens if fine at 105...

 

[shaoken]

Unable to judge w/o the photo.

 

[2evans]

Can you rule out user error?

I.e. focus point is where you want it to be? fast enough shutter speed?