Do I need to do an AF Microadjustment with my new 50mm f/1.2L lens ?

[brosen]

I just got my new Canon 50mm f/1.2L lens, and after taking some picture with 1.2 aperture the main subject is clearly OUT OF FOCUS, I think the main reason is that at 1.2 the DOF is super shallow.

I was reading that the Canon 7D has the Custom Function to do a AF Micro adjustment to the Lens, do I have to do it ?, or I should send the lens back to Canon for proper calibration ?, what are my options ?, thanks a lot

[bimdas]

It's in your menu settings under C.Fn III: Autofocus/drive setting. If that doesn't fix your autofocus issues then it would be best to send your camera in to Canon as the 7D is quite widely known for having autofocus issues. There's quite a few lemons out there.

[brosen]

It's in your menu settings under C.Fn III: Autofocus/drive setting. If that doesn't fix your autofocus issues then it would be best to send your camera in to Canon as the 7D is quite widely known for having autofocus issues. There's quite a few lemons out there.

I do not think it's a camera issue, I have also the Canon 24-105mm f/4L lens and focus is 100% accurate, I think it's DOF too shallow

[brosen]

I am focusing on the letter "H" in the keyboard, as you can see the row on top is in focus:

http://lh3.ggpht.com/_VxwofyI3XaA/S2j75HzeGqI/AAAAAAAASzw/GQicJHhekpo/s720/IMG_0028.JPG

http://lh4.ggpht.com/_VxwofyI3XaA/S2j759KEUyI/AAAAAAAASz0/iwSinEJnufo/s1024/Screen%20shot%202010-02-02%20at%2010.29.33%20PM.png

[brosen]

Here are the results from the Micro adjustments to my Canon 50mm f/1.2L Lens at an Aperture of 1.2, I really do not see a huge difference and I would say at 0 Micro Adjustment the photo looks perfectly fine, what do you think ?, the Micro Adjustment sequence of the photos is the following, also the photo name has the value for the Micro Adjustment in the name:

0 +15 +5 -5 -15

[Jordan_S]

In my opinion, none of them look correct. The images are rather small, which makes it difficult to tell; however, I think the lower 8 (and 4 and 2) is always blurrier than the upper 8 (and respective 4 and 2), mirroring your keyboard shot somewhat. You may wish to check this (http://regex.info/blog/photo-tech/focus-chart) out but I wouldn't drive myself nuts if I was you.

[brosen]

This is the link to the original files:

Micro Adjustment = 0

http://lh4.ggpht.com/_VxwofyI3XaA/S236ifE9r7I/AAAAAAAAS2g/XlhguA5IpZY/s720/IMG_0024.JPG

Same Picture Magnified 6 times:

http://lh3.ggpht.com/_VxwofyI3XaA/S239YBT5gOI/AAAAAAAAS3Y/Y8lj-opOSLo/s912/50MM%20f%3A1.2L%200%20MA.png

[brosen]

Here are the Links to the original files 18M, you can download the file and check it yourself:

Micro Adjustment = 0

http://lh4.ggpht.com/_VxwofyI3XaA/S236ifE9r7I/AAAAAAAAS2g/XlhguA5IpZY/s720/IMG_0024.JPG

Micro Adjustment = +15

http://lh5.ggpht.com/_VxwofyI3XaA/S236i5kUVvI/AAAAAAAAS2k/DXf-J3eMKKA/s720/IMG_0029.JPG

Micro Adjustment = +5

http://lh6.ggpht.com/_VxwofyI3XaA/S236j4WVdCI/AAAAAAAAS2o/VnzH1wqKMK4/s720/IMG_0027.JPG

Micro Adjustment = -5

http://lh6.ggpht.com/_VxwofyI3XaA/S236kfUDq9I/AAAAAAAAS2s/VKJPSnbrhjI/s720/IMG_0025.JPG

Micro Adjustment = -15

http://lh5.ggpht.com/_VxwofyI3XaA/S236lLbjxQI/AAAAAAAAS2w/_T6TjzQEAhg/s720/IMG_0031.JPG

[brosen]

Canon 7D + 50mm f/1.2L at an Aperture = 1.2

http://lh5.ggpht.com/_VxwofyI3XaA/S28SyvWTNMI/AAAAAAAATkM/gBMPyBJIcNQ/s720/IMG_0036.JPG

http://lh4.ggpht.com/_VxwofyI3XaA/S28S39t9sqI/AAAAAAAATkU/2FLM5dVdZZ4/s720/IMG_0037.JPG

http://lh5.ggpht.com/_VxwofyI3XaA/S28S-dxwnDI/AAAAAAAATko/zhEQzBxxEis/s720/IMG_0038.JPG

http://lh6.ggpht.com/_VxwofyI3XaA/S28TDRfli9I/AAAAAAAATk0/1691fk9JTI8/s720/IMG_0039.JPG

[brosen]

http://lh6.ggpht.com/_VxwofyI3XaA/S28TUaVxEyI/AAAAAAAATlc/j9YdtMjaTzM/s720/IMG_0042.JPG
http://lh4.ggpht.com/_VxwofyI3XaA/S28TaUMT7-I/AAAAAAAATls/U13VrE6MHUY/s720/IMG_0043.JPG
http://lh3.ggpht.com/_VxwofyI3XaA/S28TfrmJjMI/AAAAAAAATl8/RUFr0ee2cHo/s720/IMG_0044.JPG
http://lh5.ggpht.com/_VxwofyI3XaA/S28TkIAhbQI/AAAAAAAATmM/kybfESB3tNM/s720/IMG_0045.JPG
http://lh3.ggpht.com/_VxwofyI3XaA/S28ToNMjsMI/AAAAAAAATmY/S5BLxYNCcBc/s720/IMG_0046.JPG
http://lh4.ggpht.com/_VxwofyI3XaA/S28TswFhRvI/AAAAAAAATmo/g3Nh-3IGCVI/s720/IMG_0047.JPG
http://lh5.ggpht.com/_VxwofyI3XaA/S28TxV9UAyI/AAAAAAAATmw/EszhhQiQ0_M/s720/IMG_0048.JPG

[brosen]

Another example:

http://lh4.ggpht.com/_VxwofyI3XaA/S28T3LqIedI/AAAAAAAATnA/N0EXfisDRk4/s720/IMG_0049.JPG
http://lh5.ggpht.com/_VxwofyI3XaA/S28UCSy4QMI/AAAAAAAATnc/cecPaX18ovQ/s720/IMG_0052.JPG
http://lh5.ggpht.com/_VxwofyI3XaA/S28UNVK4IUI/AAAAAAAATn8/k4cyHULVM30/s720/IMG_0054.JPG
http://lh3.ggpht.com/_VxwofyI3XaA/S28UYG7fPnI/AAAAAAAAToc/dLWviqa315E/s720/IMG_0056.JPG
http://lh6.ggpht.com/_VxwofyI3XaA/S28Uc8SDwxI/AAAAAAAAToo/rCc4zmAz2fA/s720/IMG_0057.JPG
http://lh6.ggpht.com/_VxwofyI3XaA/S28Ugz1zdZI/AAAAAAAATo4/pxhcM-uE8ZI/s720/IMG_0058.JPG
http://lh4.ggpht.com/_VxwofyI3XaA/S28Ulp6yYpI/AAAAAAAATpA/zmGWdsseNxI/s720/IMG_0059.JPG
http://lh5.ggpht.com/_VxwofyI3XaA/S28Utf50MsI/AAAAAAAATpQ/buOMeM2m6s4/s720/IMG_0060.JPG
http://lh4.ggpht.com/_VxwofyI3XaA/S28U1WIbuYI/AAAAAAAATpc/CWH2hwdWtlA/s720/IMG_0061.JPG

[shrigg]

Awesome lens!