Princeli Offline Upload & Sell: On
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I have a 35L currently being repaired for OOF images as well. The Canon tech suggested a way for me to test the lens, that you might want to try, to more accurately identify what's going on.
He told me to get 4 cans, preferable, the same.. ie., 4 cans of campbell's soup.
Put them in good light (I had a table set up outside!) on one end of a 5' table, and line them up at a 45 degree angle... I had each of my cans one whole can length behind the other, so from above, they made a perfect 45 degree line from a spot towards the center of the table towards the outer corner.
Next, with the camera resting on the opp end of the table, I focused on the 3rd can, wide open. I chose the 3rd from the front, using a single focus point.
Of 20 images I took, ALL of them had the 3rd can OOF, and the 4th can, though blurry, in better focus than the 3rd, and hence, it was clearly back focusing...
I HOPE TO GOD THEY FIX IT THIS TIME. THIS WILL BE ITS SECOND TRIP BACK SINCE I BOUGHT IT NEW, it has never, focused properly. I sent my 5D in with the lens this time too...
I thought this was a cool real life way of testing... which they prefered to the chart.
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