New 70-200 VR II - spot/minicrack inside on the glass

Started Dec 6, 2011 | Discussions thread
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Martin_MM
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New 70-200 VR II - spot/minicrack inside on the glass
Dec 6, 2011

Hi, I´ve just got my new 70-200 VR II and put it to some "regular" testing to check centering quality, BF/FF etc. What I can say my 70-200 copy is supersharp, very well centered and focuses perfectly. However, what disturbs me is a kind of mini crack or spot inside the lens close to the optical axis - please see the attachment. Well, in reality the spot is even not that big as shown in the pic (it is blurry on the pic because I cant get my compact cam to focus properly in the macro mode) but it definitely doesn´t look like a common dust particle. In all probability, it is a lens defect.

Do you think it may somewhat influence the optical performance of the lens when it is not directly in the optical axis or am I doing too much ado about nothing...?! That means (another Shakespeare quote) return the lens for a new copy or not return the lens...? I´m saying again the spot is even smaller in reality (with sharp edges) than being shown in the pic... but it is there.

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