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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 Mar 2013 (Tuesday) 17:58
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What is your lens micro adjust technique?

 
androostain
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Mar 19, 2013 17:58 |  #1

How do you guys micro adjust your lenses? I have Reikan FoCal but really struggle to get the correct lighting for the test as my house is very dark


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Aressem
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Mar 19, 2013 18:15 |  #2

Dot-tune method. Free and extremely accurate.

http://www.fredmiranda​.com/forum/topic/11872​47 (external link)


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DanPics
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Mar 19, 2013 18:26 |  #3

I performed the Dot-tune method and was amazed at how it works.




  
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Mar 19, 2013 18:28 as a reply to  @ DanPics's post |  #4

Focal in my house. I have no problem and it is spot on.


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Nightdiver13
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Mar 19, 2013 18:46 |  #5

Aressem wrote in post #15733543 (external link)
Dot-tune method. Free and extremely accurate.

http://www.fredmiranda​.com/forum/topic/11872​47 (external link)

Sounds really interesting. Did you use that on your Sigma? And if so, did you use his recommendation in post #4?


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Aressem
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Mar 19, 2013 20:51 |  #6

Nightdiver13 wrote in post #15733679 (external link)
Sounds really interesting. Did you use that on your Sigma? And if so, did you use his recommendation in post #4?

Yes I used this method. As for post #4, you're referring to the distance I had my camera/lens from the calibration chart? Then yes. If you watch the video, it explains how to calculate how far your lens should be from the chart. It's a pretty simple formula. Basically you multiply the focal length (in this case 35mm) by 50x, which equals 1750mm (or approx 5'10") . For me, I ended up with a setting of +7 or +8. It worked like a charm!


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Mar 19, 2013 21:31 |  #7

And dot-tune is now part of Magic Lantern - so the whole calibration is fully automatic (it takes 30 seconds to calibrate a lens). The word of caution - with any method you use, good light and good target make all the difference.


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Aressem
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Mar 20, 2013 10:28 |  #8

pulsar123 wrote in post #15734220 (external link)
And dot-tune is now part of Magic Lantern - so the whole calibration is fully automatic (it takes 30 seconds to calibrate a lens). The word of caution - with any method you use, good light and good target make all the difference.

Interesting. I've yet to give ML a shot.


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tomholman
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Mar 20, 2013 10:37 |  #9

I used FoCal on my covered porch. Worked fine.


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pulsar123
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Mar 20, 2013 16:57 |  #10

Aressem wrote in post #15735768 (external link)
Interesting. I've yet to give ML a shot.

You'll need their nightly release to get the dot-tune feature. Works like charm on my 50D.


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agedbriar
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Mar 20, 2013 17:21 |  #11

I use FocusTune.




  
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imonkey89
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Mar 20, 2013 17:48 |  #12

To anyone who is using the DotTune method to adjust focus, or any other technique, are you using spot focus or single point?


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Nightdiver13
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Mar 20, 2013 18:16 |  #13

What's spot focus?


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Mar 20, 2013 18:32 |  #14

Aressem wrote in post #15734099 (external link)
Yes I used this method. As for post #4, you're referring to the distance I had my camera/lens from the calibration chart? Then yes. If you watch the video, it explains how to calculate how far your lens should be from the chart. It's a pretty simple formula. Basically you multiply the focal length (in this case 35mm) by 50x, which equals 1750mm (or approx 5'10") . For me, I ended up with a setting of +7 or +8. It worked like a charm!

Did you take the crop factor into account?


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rndman
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Mar 20, 2013 19:02 |  #15

pulsar123 wrote in post #15734220 (external link)
And dot-tune is now part of Magic Lantern - so the whole calibration is fully automatic (it takes 30 seconds to calibrate a lens).

Not yet. Sometime in future..

Unless it is hidden somewhere on their website.


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What is your lens micro adjust technique?
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