Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 30 Aug 2010 (Monday) 14:23
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

70-200 F4 IS focus problem

 
hdd
Senior Member
320 posts
Joined Aug 2004
     
Aug 30, 2010 14:23 |  #1

im new to this lens so maybe im doing something wrong. Ive been using the 24-105 lens before this one and I can get the lens pretty much right on top of a flower or etc im focusing on. The 70-200 I have to be a good 4-5ft away to autofocus correct?

When im at this distance it seems to focus about 1-2inches behind what I actaully have centered to focus on. Im using the center spot focus dot on the 50d if that matters but it seems to ovbershoot the focus.

here is a example

http://www.delanofarms​.net/077a.JPG (external link)

I was focused on the flower and bee but it picked the buds behind the flower which are tac sharp. Ive tried a couple quick shots on distance objects and focusing is ok. Is this just a issue up close on objects? Do I need to send the lens back to get calibrated?


Canon 50D/S5 IS
Canon 24-105 & 70-200mm IS f/4 "L" - Canon 50mm f1.8 - Sigma 17-70mm f2.8 - 430EX
Capture By Design Photography (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
markol
Senior Member
841 posts
Joined Jun 2007
Location: San Francisco
     
Aug 30, 2010 14:41 |  #2

You will definitely need to be further away. The minimum focusing distance is 3.9 feet on that lens. That said it should be able to focus very quickly on the selected focus point. What body are you shooting with?


www.borrowlenses.com (external link)

  
  LOG IN TO REPLY
hdd
THREAD ­ STARTER
Senior Member
320 posts
Joined Aug 2004
     
Aug 30, 2010 14:49 |  #3

using the 50d... i backed up and everything seems fine there. I wanted to make sure it wasnt something wrong with the lens. Seems the farther away with that lens the better it does. Its very quick also.


Canon 50D/S5 IS
Canon 24-105 & 70-200mm IS f/4 "L" - Canon 50mm f1.8 - Sigma 17-70mm f2.8 - 430EX
Capture By Design Photography (external link)

  
  LOG IN TO REPLY
MNGUYEN
Senior Member
445 posts
Likes: 1
Joined Jun 2008
Location: Southern California
     
Aug 30, 2010 14:49 |  #4

Have you tried to micro adjust the lens on the 50D?


5D/30D 35L 85L 135L 17-40L 24-105L 70-200L 4IS
Full Gear and Feedback

  
  LOG IN TO REPLY
hdd
THREAD ­ STARTER
Senior Member
320 posts
Joined Aug 2004
     
Aug 30, 2010 15:10 |  #5

i tried but it looks like its in perfect focus untill i get it on the pc scrren to edit.


Canon 50D/S5 IS
Canon 24-105 & 70-200mm IS f/4 "L" - Canon 50mm f1.8 - Sigma 17-70mm f2.8 - 430EX
Capture By Design Photography (external link)

  
  LOG IN TO REPLY
malla1962
Cream of the Crop
Avatar
7,714 posts
Likes: 4
Joined Jul 2004
Location: Walney Island,cumbria,uk
     
Aug 30, 2010 15:36 as a reply to  @ hdd's post |  #6

Do you have the limiter set to 1.2m?


Gear List

  
  LOG IN TO REPLY
hdd
THREAD ­ STARTER
Senior Member
320 posts
Joined Aug 2004
     
Aug 30, 2010 15:56 |  #7

Yes I had it on 3 but for close up I moved it to 1.2

it could have be just me... 90% of the shots look great. These were the first shots so ill test it more this week. Still has warranty anyway.

I havent done any micro adjustments within the camera and etc... if needed I may need to fine tune that.


Canon 50D/S5 IS
Canon 24-105 & 70-200mm IS f/4 "L" - Canon 50mm f1.8 - Sigma 17-70mm f2.8 - 430EX
Capture By Design Photography (external link)

  
  LOG IN TO REPLY
hdd
THREAD ­ STARTER
Senior Member
320 posts
Joined Aug 2004
     
Aug 30, 2010 15:59 |  #8

http://delanophotograp​hy.zenfolio.com/img/s1​0/v17/p107904320-4.jpg (external link)

another shot as I backed about 6ft away.... everything seems fine at that distance. I really need a macro lens also since you cant have the best of both worlds


Canon 50D/S5 IS
Canon 24-105 & 70-200mm IS f/4 "L" - Canon 50mm f1.8 - Sigma 17-70mm f2.8 - 430EX
Capture By Design Photography (external link)

  
  LOG IN TO REPLY
hdd
THREAD ­ STARTER
Senior Member
320 posts
Joined Aug 2004
     
Aug 30, 2010 17:12 |  #9

I tried the microadjustments on the 50d but never really saw any difference when I focused on some letters about 5ft away. So I put it back on 0 in the middle. Maybe I was just to close so it focused on the rear of the flowers. I had the camera set on f5.6 also


Canon 50D/S5 IS
Canon 24-105 & 70-200mm IS f/4 "L" - Canon 50mm f1.8 - Sigma 17-70mm f2.8 - 430EX
Capture By Design Photography (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

2,524 views & 0 likes for this thread
70-200 F4 IS focus problem
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is LaurensW
697 guests, 294 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.