Is the 50D's micro-adjustment for AF useful? You bet it is.

Discussion in 'Photography Beginners' Forum' started by inTempus, Feb 5, 2009.

  1. inTempus

    inTempus TPF Noob!

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    I kept feeling like my 24-70mm f/2.8L was just a little off, but it wasn't enough to really cause me concern. Some images were spot on focus wise and others seemed ever so very slightly out of focus right where I wanted the focus to be (mostly noticeable at f/2.8 ).

    So I downloaded a focus test, as a sanity check. Sure enough, the lens was ever so slightly (one micro-adjustment) front focusing.

    [​IMG]

    So I went into my 50D's menu system and brought up the micro-adjustment for the 24-70. I gave it one click of "back" adjustment and took another test shot.

    [​IMG]

    Bingo.

    I had the same feeling about my 40D but I never tested it. It too was ever so slight, but I really didn't want to send it into Canon just to be sure. It really wasn't enough to be concerned about.

    I would say the micro-adjustment of the 50D is well worth it.

    Just one more reason I'm happy as a lark I upgraded. :)
     
  2. rubbertree

    rubbertree TPF Noob!

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    wow! That is pretty cool!
     
  3. inTempus

    inTempus TPF Noob!

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    Yeah, I thought it was really cool. :) It was off so little, even looking at the test picture I was thinking... "is it really off or is it just me". Then I made the adjustment and looked at the next pic and realized I wasn't nuts and the feature kicks butt! :)
     
  4. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    That is indeed a great feature.

    My only concern is: what if it was your lens that was out of alignment...do you have to re-adjust it when you switch lenses?
     
  5. inTempus

    inTempus TPF Noob!

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    Nope, the 50D remembers each lens you own and automatically adjusts the settings when you attach that lens. When I went into the menu and enabled the micro-adjustment feature, it asked me if I wanted to profile the attached lens. I told it yes, then it went to a new screen that showed the lens (EF 24-70 f/2.8L USM) and presented me with an adjustment bar.

    [​IMG]
     
    Last edited: Feb 5, 2009
  6. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Well that is uber cool. Damn....I need a 50D.
     
  7. inTempus

    inTempus TPF Noob!

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    Hehe, I suspect you have higher end equipment than my lowly 50D. :p

    I just ran the same test on my EF 70-200mm F/2.8L IS USM lens and it was spot on, no need for adjustment.

    I'm all set.

    Bring on the weekend! :)
     
  8. rufus5150

    rufus5150 TPF Noob!

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    Big Mike uses a pair of 20D's quite proudly :)
     
  9. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    That's right.

    As much as I'd love some newer cameras, my 20Ds have been doing the job quite well for me so I haven't needed to upgrade (or haven't been able to justify the expense). Maybe this year if business is good.
     
  10. EOS_JD

    EOS_JD TPF Noob!

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    Mike even the 40D is a HUGE upgrade to the 20D. I use the 40 as my main and my 20D as my backup (still a capable camera though) :)
     
  11. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    I know...at times I'm seriously jonesing for a 50D or even a 40D. I was surprised that the 50D came out so early after the release of the 40D....so now I'm torn. The 40D is a great upgrade and can be had at a great price...but the 50D is the newer technology.

    If I can secure a couple more bookings...I'll probably get something right away...but it's looking to be a slow year and with the new baby...money isn't exactly growing on trees these days :lol:
     
  12. rufus5150

    rufus5150 TPF Noob!

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    I've always had this image of mike wielding two 20D's at the same time, snapping pics old-west-showdown style.

    I need to get out more.
     

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