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Message: <blockquote data-quote="hark" data-source="post: 741376" data-attributes="member: 13196">And unfortunately that seems to be true. While it works well in some situations, it is unreliable especially for subjects further away. What I hadn't realized is my first photos with this combo offered me subjects that were somewhat close. But when I went back through images taken after getting this TC, ones of birds flying or further away tended to suffer. At the time I must have thought it was my technique. But now it's much more difficult to find raptors that are close like they used to be. And subsequently now I'm finding most to all of the images taken from further away aren't usable.Here are two photos - both are jpegs sooc only resized for the forum. No additional post processing was done. The first was taken with the 300mm f/4 non-VR lens. The second with the 300m PF. While I was shooting the second batch of pics (different day), the sky changed from being overcast to having a little bit of brightness. But the ones that were taken with overcast skies suffered even more with softer focus. For some reason, when the distance to the subject is further away, the lens front focuses. But that isn't the case with most photos taken at a closer distance.In this first image, the eagle let out a pitiful screech. The crow appeared from out of nowhere and initially sat on the beam several feet away from the eagle. Eventually the crow antagonized the eagle, but the eagle didn't do anything. After a while, the crow left.[ATTACH=full]343791[/ATTACH]In this second photo shot with the PF a couple days later (which has VR that seemed to engage properly), the focus is much softer on all the images. Yet if you scroll up and look at the duck photo from the other day, the focus was accurate.[ATTACH=full]343792[/ATTACH]</blockquote>

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