Strange Blurring of Subject with 70-200 f4 IS (Link to Image)

Started Nov 5, 2012 | Discussions thread
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Aussie Rod OP Senior Member • Posts: 1,034
Re: Strange Blurring of Subject with 70-200 f4 IS (Link to Image)

Steve Balcombe wrote:

That's very peculiar. At first I thought it was caused by the kind of internal reflections you can get when shooting through window glass at an oblique angle, but then I saw that the ghost images run vertically as well as horizontally which wouldn't happen.

It's clearly optical (as opposed to motion blur from a faulty IS mechanism) - the way the ghost images become progressively fainter is a classic sign of internal reflections. But I don't know any way it could happen in two directions at the same time.

Spot on Steve!  That's what I can't figure out?  The ghosting both ways and yet the writing is sharp.

...and as I said when I took a closer look I could see it through the view finder as well while I was focusing before the shot

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