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canon 55-250 IS blur edge, anyone?

Started Jan 15, 2009 | Discussions thread
OP jongpl Junior Member • Posts: 39
Re: not an is problem

Ya you are right, I will try proper method before sending to canon. As for the vertical and horizontal test, the result is quite a surprise to me, I would expecting when I turn the opposite way for vertical shots, the blur edge will turn to the other side, but its doesn't, instead I got the full images, from top to bottom pretty sharp. I have a few shots besides the palm tree shot, which shows the same results. But again they might not be a good test for my situation.

The other thing is that when I shot vertical shot(anti clockwise) I can actually see the weird OOF edge in the viewfinder which doesn't shows up in horizontal orientation. I normally focus using the center point and then composite the shots so the focused object will be either on left or right, I have using this method with horzontal shot, and also with other lens and none of them having this weird behaviour. When I prefocus the center object and tilt the camera down, I can see the object start to get really blur on top, which doesn't make sense when the object is 80m away. I guess this is the information I have for now, I will try the proper method to gather more informations, Thanks guys.

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