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FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
Thread started 01 Nov 2014 (Saturday) 10:12
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Frontfocus coming from infinity, back focus coming from MFD

 
travisvwright
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Nov 01, 2014 10:12 |  #1

I'm trying to MFA my lens (tamron 28-75 2.8) And if I focus to infinity before focusing it is front focused. If I focus at MFD before focusing the image is back focused. Not by much and I've been happy with the lens for a couple years now, but now that I can obsess over minutiae I'm going for it.

Is this common, is it normal?


I come here for your expert opinion. Please do not hesitate to critique or edit.
70D, 6D, Canon 135, Tamron 28-75 2.8, Tamron 70-200 2.8 VC, Canon 50 1.4, Canon 100 2.8 Macro, Canon 85 1.8, Canon 10-18 4.5 STM

Franklin NC Photographer Travis Wright (external link)

  
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travisvwright
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Nov 01, 2014 10:13 |  #2

Setup is this chart: http://regex.info/i/Fo​cusChart-v1.0-gray25.gif (external link)

At ~55 inches 75mm 2.8, tripod, mirror lockup, 2 second delay, remote release.


I come here for your expert opinion. Please do not hesitate to critique or edit.
70D, 6D, Canon 135, Tamron 28-75 2.8, Tamron 70-200 2.8 VC, Canon 50 1.4, Canon 100 2.8 Macro, Canon 85 1.8, Canon 10-18 4.5 STM

Franklin NC Photographer Travis Wright (external link)

  
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Frontfocus coming from infinity, back focus coming from MFD
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
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