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Thread started 15 Apr 2009 (Wednesday) 16:05
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Canon 50D AI Servo - Help!!!

 
yuribox
Senior Member
257 posts
Joined Mar 2009
Apr 15, 2009 16:05 |  #1

I was shooting some wake boarding pictures with my old 1DsII and new 50D.
Taking picture with the same lens (100-400mm) and the same setting.
Two different result.
Why is my newer 50 not getting sharp focus?
Am I doing something wrong? or am I a bad photographer?
Any help will be appreciated.
Thanks in advance. ^^

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1Ds IR, 5DIII, 1DIII, 17-40, 24-105, 70-200, TS-E24, 40, 50, 85, 100, MP-E65

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Mctrician
Member
59 posts
Joined Aug 2008
Apr 15, 2009 19:03 |  #2

Same quality of JPEG. I've got a 50D with 70-200f/2.8L IS and no problems.


_______________
Brian
My Gear:
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Big ­ K
Goldmember
2,021 posts
Joined Jul 2007
West Central Indiana
Apr 15, 2009 19:30 |  #3

You might try calibrating your lens to the 50D using the micro adjust process.


Name: Kevin
Follow my daily work at www.ks-images.comexternal link and feel free to C&C anything I post.
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TheFloridaShooter
Senior Member
710 posts
Joined Nov 2008
Apr 15, 2009 19:51 |  #4

Yes I had the same problem until I did the mirco focus


1Dx MKII | 1Dx | 5D MKIV | 5D MKIII | 5Ds r | 5Ds | 7D MKII | 7D | G16 | G3x | EOS M & M3 | 800 f5.6 | 600 f4 | 400 f2.8 | 300 f2.8 | 200-400 f4 | 100-400 f4.5 - 5.6 II x 2 | 70-200 f2.8 | 14 f2.8 II | 50 f1.2 | 50 1.4 | 85 f1.2 | 135 f2 | 24-70 f2.8 II | 11-24 f4 | 35 f1.4 II | Pentax 645Z | SMC Pentax-DA 645 25mm F4 AL | SMC Pentax-D FA 645 55mm F2.8 AL | Pentax 90mm f/2.8 D FA 645 Macro ED AW SR | SMC Pentax-D FA 645 200mm f/4 IF | SMC Pentax-D FA 645 300mm f/4 ED IF | SMC FA 645 400mm f/5.6 ED IF Lens

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Big ­ K
Goldmember
2,021 posts
Joined Jul 2007
West Central Indiana
Apr 15, 2009 20:24 |  #5

All but two of my lenses had to be calibrated to my Mk III. Frustrating that it has to be done with such expensive equipment but am glad the functionality to do it is built into the camera.

It is worth the time to do it. Hope it fixes your problem.

My real suggestion is stick with the DsII. With lots of light like in this shot, I can't imagine the 50D will ever live up to it no matter how calibrated the lenses are.


Name: Kevin
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yuribox
THREAD ­ STARTER
Senior Member
257 posts
Joined Mar 2009
Apr 15, 2009 22:17 |  #6

Big K wrote in post #7738325external link
You might try calibrating your lens to the 50D using the micro adjust process.

I have taken some bird pics and some other long zoom pics with lens before and it came out fine.
Is 50D's AI Servo not as good as 1DsII?
1DsII is fairly old system and I thought 50D would do better.
I might be a bad photographer but I admit... I am little bit disappointed... :cry:


1Ds IR, 5DIII, 1DIII, 17-40, 24-105, 70-200, TS-E24, 40, 50, 85, 100, MP-E65

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books64
Member
79 posts
Joined Mar 2009
Tucson, AZ
Apr 16, 2009 01:50 |  #7

I use the 50d for sports shooting all of the time and would not be surprised if the problem had more to do with your focal point. I do know that the answer is not always to use a theoretically better camera. The micro adjust also sounds worth it to me.


Lots of gear!

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bobbyz
Cream of the Crop
18,419 posts
Joined Nov 2007
Bay Area, CA
Apr 16, 2009 08:53 |  #8

yuribox wrote in post #7739417external link
Is 50D's AI Servo not as good as 1DsII?
1DsII is fairly old system and I thought 50D would do better.
I might be a bad photographer but I admit... I am little bit disappointed... :cry:

1dsMkII might be old but the AF system is much better than xxD series. I would take 1dsMk2 over 50d anytime.


5dmk3, 35L, 85L II, 300mm f2.8 IS I, 400mm f5.6
Fuji XT-1, 14mm f2.8, 23mm f1.4, 35mm f1.4, 56mm f1.2, 90mm f2, 50-140mm f2.8

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dmmiller
Senior Member
654 posts
Joined Aug 2008
Virginia
Apr 16, 2009 09:12 |  #9

I'm having the same issues with my 50.
Can someone explain alittle bit on this micro adjust/focus?
Is is something you can do on your own? Or have to send it in?
is it hard to do if you can do it on your own?
~~~~~~~~~~~~~~~

Did a little research on it.. might be over my head?


Michelle

My Gear: Canon 50d, Canon 200mm f/2.8 L II USM, Canon EF 50 1.8 II, Canon AF 70-300mm, Speedlight 420EX

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Big ­ K
Goldmember
2,021 posts
Joined Jul 2007
West Central Indiana
Apr 16, 2009 09:34 |  #10

bobbyz wrote in post #7741650external link
1dsMkII might be old but the AF system is much better than xxD series. I would take 1dsMk2 over 50d anytime.

+1

dmmiller wrote in post #7741750external link
I'm having the same issues with my 50.
Can someone explain alittle bit on this micro adjust/focus?
Is is something you can do on your own? Or have to send it in?
is it hard to do if you can do it on your own?

It is functionality that is built into the camera. Your manual will have good instructions on how to find it via the menus.

The process for making the changes is very easy. The tough part is getting a target set up so you can effectively identify the effects of each change you make. I don't think I can do a very good job of putting it into words.

Here is a link to a website of a company that makes a targeting system for use with the micro adjust. If you watch the videos it will give you a good overview of how you make the changes. The video links are on this page.

http://www.rawworkflow​.com/lensalign/external link

I did buy one of these devices and it works pefectly. A bit pricy but very effective.


Name: Kevin
Follow my daily work at www.ks-images.comexternal link and feel free to C&C anything I post.
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dmmiller
Senior Member
654 posts
Joined Aug 2008
Virginia
Apr 16, 2009 11:02 |  #11

thanks Kevin :)


Michelle

My Gear: Canon 50d, Canon 200mm f/2.8 L II USM, Canon EF 50 1.8 II, Canon AF 70-300mm, Speedlight 420EX

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scfan
Member
scfan's Avatar
Joined Oct 2007
Houston, Texas
Apr 16, 2009 21:12 as a reply to dmmiller's post |  #12

Nice explanation of the micro adjust feature here:

http://photography-on-the.net/forum/showthre​ad.php?t=679096


7D2, 50D , Canon 50mm 1.8, Tamron 17-50mm 2.8, Canon 100mm 2.8 Macro, Canon 100-400mm L II, Canon Speedlite 430EX II, Sigma 18-250

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Canon 50D AI Servo - Help!!!
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