|
21st of June 2012 (Thu)
|
#1 |
|
Junior Member
Join Date: Feb 2012
Posts: 20
|
Focus fails on moving away objects. EF70-200 f/4 is usm
Hello everyone!
Here is what i'm worried about. My body is 550D and the lens is in the subject. Most of my photos are cars on the street and when i shoot a car which moves away from me, it is never in focus. Usually the speed of a car is approximately 15-20 km/h (traffic jam), my distance from the object is around 15-20 meters, i have tested all the zoom range and i'm shooting at 5.6 using AI SERVO and IS. Very rarely i get a focus which satisfies me. I have tried to shoot without IS, but that didn't help much. However the is no problem when a car drives towards me, no matter what speed even 90 km/h, i get most of the photos focused well. Is it possible that AI Servo can't track properly the moving away objects? Thank you! |
|
|
| sponsored links |
|
21st of June 2012 (Thu)
|
#2 | |
|
Moderator
Join Date: Feb 2004
Location: S. E. Michigan
Posts: 64,347
|
Re: Focus fails on moving away objects. EF70-200 f/4 is usm
Quote:
The best place to get an answer might be in MotorSports Talk, so I'm moving the thread.
__________________
FrankC - 20D, RAW, Manual everything... Classic Carz, Racing, Air Show, Flowers. www.FrankCizek.com Find the light... A few Car Lighting Tips, and MOVE YOUR FEET! Have you thought about making your own book? // Need an exposure crutch? |
|
|
|
|
21st of June 2012 (Thu)
|
#3 |
|
Junior Member
Join Date: Feb 2012
Posts: 20
|
Re: Focus fails on moving away objects. EF70-200 f/4 is usm
Thank you! i hope i will get an answer soon.
|
|
|
|
| sponsored links |
|
25th of June 2012 (Mon)
|
#4 |
|
Member
Join Date: Aug 2008
Location: NZ
Posts: 249
|
Re: Focus fails on moving away objects. EF70-200 f/4 is usm
At that range with a sharp lens like that should see no reason for problems....An image with some shooting info attached is required if you want to get help.
__________________
Canon Stuff Website www.autofocused.co.nz https://www.facebook.com/pages/Autof...23?ref=tn_tnmn |
|
|
|
|
28th of June 2012 (Thu)
|
#6 |
|
Junior Member
Join Date: Feb 2012
Posts: 20
|
Re: Focus fails on moving away objects. EF70-200 f/4 is usm
Here is the link to 6 raw files
http://www.roomush.com/stuff/outoffocus.rar |
|
|
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Noobie Question: How to get in-focus pics of moving objects... | RandomMusing | Canon EOS Digital Cameras | 11 | 25th of January 2012 (Wed) 21:32 |
| First moving objects | willy b | Macro | 5 | 3rd of April 2007 (Tue) 07:55 |
| Moving objects?? | Timaphillips | Canon EOS Digital Cameras | 11 | 5th of February 2007 (Mon) 14:02 |
| 30D + moving objects = I need help. | EOS mE | Canon EOS Digital Cameras | 6 | 29th of December 2006 (Fri) 21:20 |
| AI Servo or AI Focus for fast moving objects? | SonicYan | General Photography Talk | 12 | 11th of March 2006 (Sat) 18:51 |
Linear Mode
