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Lenses
Telephoto
Troubleshooting 300mm f/4 PF
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<blockquote data-quote="Fred Kingston" data-source="post: 692089" data-attributes="member: 10742"><p>When you add the 1.4 telec. you're adding 2 stops of aperture to that F4 lens, and in certain lighting situations you're probably getting close to the limits of the camera's focusing detection...would be my first guess...</p></blockquote><p></p>
[QUOTE="Fred Kingston, post: 692089, member: 10742"] When you add the 1.4 telec. you're adding 2 stops of aperture to that F4 lens, and in certain lighting situations you're probably getting close to the limits of the camera's focusing detection...would be my first guess... [/QUOTE]
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Troubleshooting 300mm f/4 PF
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