Does my new Sigma 50mm f/1.4 have front or back focus problem?

travinh · 13th of November 2009 (Fri)

I just got my new Sigma 50mm f/1.4. I am testing for front or back focus problem? This picture below is 100% crop at f/1.4. I was focus on letter "e". Distance from the lens to the "e" is about 3 feet. I used only center AF point. Does my new Sigma 50mm f/1.4 have the front or back focus problem? Please advice.

robonrome · 14th of November 2009 (Sat)

no, you're one of the lucky ones... frankly if you have to ask you are ok...you'd know if it didn't.

13th of November 2009 (Fri)	#1
travinh Member Join Date: Feb 2009 Posts: 171	Does my new Sigma 50mm f/1.4 have front or back focus problem? I just got my new Sigma 50mm f/1.4. I am testing for front or back focus problem? This picture below is 100% crop at f/1.4. I was focus on letter "e". Distance from the lens to the "e" is about 3 feet. I used only center AF point. Does my new Sigma 50mm f/1.4 have the front or back focus problem? Please advice. __________________ Camera: EOS-7D \| E-M5 Accessories: Olympus 45mm f1.8 \| Panansonic 12-35mm f2.8 \| 24-105mm f4L \| Sigma 50mm f1.4 \| 85mm f1.8 \| 100mm f2.8L IS Macro \| 70-200mm f2.8L IS \| 24mm f1.4 \|\| 580EX II Last edited by travinh : 14th of November 2009 (Sat) at 00:03.

14th of November 2009 (Sat)	#2
robonrome Goldmember Join Date: May 2008 Location: Australia Posts: 2,744 IMAGE EDITING OK	Re: Does my new Sigma 50mm f/1.4 have front or back focus problem? no, you're one of the lucky ones... frankly if you have to ask you are ok...you'd know if it didn't. __________________ rob - check my galleries at http://hardlightimages.zenfolio.com/ Zenfolio coupon discount when signing up - 93R-NCK-DUT _________________________________________ Canon 5D Mkiii; Sony RX100; Lumix G5; 17-40L; 24L TS-E F3.5 Mk2; 24-105L IS; 40 F2.8; 135L; 70-200L F2.8 IS MkII; Ext II 1.4x; 580 exII; 270 ex... other filtery stuff

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