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Thread started 16 Jun 2014 (Monday) 09:00
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AF micro adjustment: adjust all vs. adjust by lens

 
LV ­ Moose
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Jun 16, 2014 12:38 |  #16

bacchanal wrote in post #16975040 (external link)
Except you CAN enter values in both settings at the same time. I'm asking for specific clarification on what happens when that is the case. Does Adjust by lens override the all lens setting (or vice versa) or is it cumulative.

I guess I'll just test it myself.

Yes, you can enter values in both settings. But the only ones that are in effect depend upon whether you choose "adjust by lens" or "adjust by same amount."


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Jun 16, 2014 12:44 as a reply to  @ LV Moose's post |  #17

I give up.:rolleyes:


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GregDunn
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Jun 16, 2014 12:46 |  #18

LV Moose wrote in post #16975049 (external link)
Yes, you can enter values in both settings. But the only ones that are in effect depend upon whether you choose "adjust by lens" or "adjust by same amount."

This. If you don't accept it, take some pictures and look in DPP at the MA value applied.


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bacchanal
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Jun 16, 2014 12:50 |  #19

LV Moose wrote in post #16975049 (external link)
Yes, you can enter values in both settings. But the only ones that are in effect depend upon whether you choose "adjust by lens" or "adjust by same amount."

Got it, so if I'm borrowing a lens and I want to use my general "adjust all" setting, I have to switch to that setting each time. For some reason I was thinking in my head that the camera would automatically revert to the adjust all setting if there was no specific lens adjustment specified.


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john ­ crossley
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Jun 16, 2014 15:28 |  #20

bacchanal wrote in post #16975040 (external link)
Except you CAN enter values in both settings at the same time. I'm asking for specific clarification on what happens when that is the case. Does Adjust by lens override the all lens setting (or vice versa) or is it cumulative.

I guess I'll just test it myself.


If you select "Adjust by Lens" then each individual lens is adjusted by its own specific amount.

If you select "Adjust All" then all lens when attached to the body will be adjusted by the amount that you have set.


Simples Tch.


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apersson850
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Jun 16, 2014 15:43 |  #21

bacchanal wrote in post #16975080 (external link)
For some reason I was thinking in my head that the camera would automatically revert to the adjust all setting if there was no specific lens adjustment specified.

Nope. In such a case, it will apply no adjustment at all.


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Jun 16, 2014 15:48 |  #22

Actually, it is an interesting question. Suppose I set the camera to Adjust All and do the setting while having Lens 1 attached. Then I attach Lens 2, select Adjust by Lens, and do the adjustment for that lens. Now, when I switch back to Lens 1, does the camera switch back to Adjust All and assumes its setting? Or would the Adjust All be reset to zero, just because the current selection was Adjust by Lens?

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john ­ crossley
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Jun 16, 2014 15:56 |  #23

I GIVE UP TOO


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apersson850
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Jun 16, 2014 16:32 as a reply to  @ john crossley's post |  #24

When you switch back to lens 1, no adjustment will be applied. There has been no specific adjustment specified for lens 1, but the camera is still set to Adjust by lens, since that's where you left it when using lens 2.


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joeblack2022
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Jun 16, 2014 16:37 |  #25

Lbsimon wrote in post #16975495 (external link)
Actually, it is an interesting question. Suppose I set the camera to Adjust All and do the setting while having Lens 1 attached. Then I attach Lens 2, select Adjust by Lens, and do the adjustment for that lens. Now, when I switch back to Lens 1, does the camera switch back to Adjust All and assumes its setting? Or would the Adjust All be reset to zero, just because the current selection was Adjust by Lens?

Please don't give up! :-)

The setting you choose in the menu is what takes precedence over everything else.

There is no automatic adjustment of values based on switching lenses unless you have specifically set them in the "adjust by lens" option and it is currently enabled.


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Jun 16, 2014 19:55 |  #26

Lenses are like people. Each one has it's own personality and quirks. For that reason I always adjust by lens as I might have to caress each lens to bring out the best the lens can offer. The only exception I can think of is what CyberDyneSystems referred to where the camera itself has an issue.

On the 5D3 and the 70D, you can adjust both ends of a zoom lens, and hope for the best in the mid-range focus.



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apersson850
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Jun 17, 2014 01:48 as a reply to  @ jay125's post |  #27

"Hope for the best" is implemented in such a way, that if you set it to +2 at one end and +10 at the other, it will interpolate your settings in between. Thus halfway through the zoom range, you get +6.


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Jun 17, 2014 05:23 |  #28

Gregg.Siam wrote in post #16974747 (external link)
The odds of you having multiple lenses off by the same amount is zero.

I very nearly set my 50D to 'Adjust by all' when I first tried MFA. Everything I tested needed a value of +4 (or close enough to +4 as to be within the margins of experimental error) so I thought I'd just set it for +4 for everything.

Then I tried my 100mm macro. Yup, +11 ;)


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AF micro adjustment: adjust all vs. adjust by lens
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