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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 04 Nov 2013 (Monday) 20:05
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Back button focus gotcha

 
M_Six
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Nov 04, 2013 20:05 |  #1

Last week I decided to give back button focusing a try. I set my 6D and 5D MkIII to focus using the back button and set the shutter to just fire away. So today I grabbed the 5D MkIII and went out for some random shots. I was going crazy trying to figure out why my blasted camera wouldn't focus. I tried switching the AF/MF switch back and forth, turned the camera on and off, and was about to remove and remount the lens. Then I remembered setting the back button focus.

D'oh!!! Luckily I had nothing critical to shoot. :oops:


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CallumRD1
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Nov 04, 2013 20:44 |  #2

Once you get used to it, it will feel completely natural. I much prefer it to the traditional focus/shutter release system.


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M_Six
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Nov 04, 2013 21:28 |  #3

That's what I'm thinking. I just need to develop the muscle memory.


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mike_d
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Nov 04, 2013 21:29 |  #4

CallumRD1 wrote in post #16424895 (external link)
Once you get used to it, it will feel completely natural. I much prefer it to the traditional focus/shutter release system.

Yep, its all what you're used to. I started using it on the 5D where you needed a custom function to enable it, then moved to the 5DIII which came out of the box with BBF enabled. Now when I use a camera with focus on the shutter button, I wonder how I ever managed before I discovered BBF.




  
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renaissance_myth
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Nov 04, 2013 21:43 |  #5

CallumRD1 wrote in post #16424895 (external link)
Once you get used to it, it will feel completely natural. I much prefer it to the traditional focus/shutter release system.

i totally agree.

initially it was hard to adjust, but once you are used to it, you will find going back to the traditional shutter focus awkward. LOL


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CallumRD1
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Nov 04, 2013 21:45 as a reply to  @ mike_d's post |  #6

I have even once, using my 10-20 that always appears in focus through the viewfinder, forgot that I reconfigured the camera back to the normal operation for a family member, and then spent a whole day pressing the back button but not realizing that the camera wasn't focusing before shooting. Most of the shots were fine, as the depth of field of 10mm is huge, but it was a little scary.


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M_Six
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Nov 04, 2013 21:52 |  #7

The funniest part today was the first few attempts at shooting. I thought I either had the wrong glasses (my old eyes need two different pairs depending on the situation), or my viewfinder diopter got messed up. When I realized I had the right glasses, I started playing with the diopter. It was a slow process of elimination before my memory kicked in.

I started doing this because I bought a macro lens and want to fine tune the focus to the spot I need to be sharp. I can let the camera do the initial focusing, but then when I turn the focus ring to where I need it and go to hit the shutter, the camera would refocus and shoot. So now I need to remember the back button focus. It'll come to me, I'm sure.


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Engineersix
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Nov 05, 2013 03:04 as a reply to  @ M_Six's post |  #8

As total new beginner on DSLR I was wanting to take some panning shots and BBF was recommended.

Since then I have stuck with it and use only BBF for everything and now it seems totally normal.

If someone else wants to use the camera I always turn it back to auto - thankfully the 600D automatically reverts to normal focusing in any Auto mode, and BBF when I switch back to M...

Rob


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RichSoansPhotos
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Nov 05, 2013 05:03 |  #9
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The only problem with me is that I keep pressing the BBF to my utter annoyance, its hard stop myself pressing it




  
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MNElliott
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Nov 05, 2013 07:39 |  #10

Been there with the BBF it caught me as well... why isn't this focusing! Now after using it it becomes second nature.


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M_Six
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Nov 05, 2013 16:19 |  #11

Only took me a minute or two today to figure out why it wouldn't focus. It's amazing how hard it is to retune your muscle memory. LOL


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triton3k
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Nov 07, 2013 10:26 |  #12

i've stopped using other cameras because they wouldnt have the option to BBF. Now its just natural to me and have even changed the setting on alot of my photog friends cameras and they love it.


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Nov 07, 2013 13:05 |  #13

The problem I keep encountering is when I pick up someones else's camera, I forget they are NOT on BBF, and can't figure out what is wrong for a moment or two.


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EOS_Fan
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Nov 07, 2013 13:23 as a reply to  @ abacus022's post |  #14

Started using BBF on my old 350D about 4 or 5 years ago, wouldn't have it any other way now, upgraded to 60D and always use the AF-On button


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badams
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Nov 07, 2013 15:44 |  #15

I started using it this summer with the 500mm, but seem to forget that I have it set if I attach any other lens. Happened this past weekend, had on the 60mm macro and couldn't figure out why it wasn't focusing. Thought something was wrong with the lens since I haven't used it lately (even though it has only been sitting on a shelf).


Everyday use: 7D2, 1.4x v3 Canon TC (sometimes the 2x v2 Canon TC), Canon 500mm f4 L IS USM; 6D, 24-105L
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Back button focus gotcha
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