Hugh
I agree with the concept of getting closer to the subject. The D70 and 50-500 is a fairly good setup. But the 50-500 is not the best of lens.
If you stick it on a D2X the increased resolution will show up the lens more as the sensor will out resolve the lens. e.g you just end up with a bigger blured version of your shot on screen.
Putting a TC on it will make the image very dark so the camera will struggle to Auto focus or hard to see if you manual focus. May be OK in bright light.
When using a TC you really need a good wide aperture prime lens to get the best results. Like a 500mm f4.
The problem with 800mm lens is that haze ( heat, pollen, mist ) becomes a problem with long distance work at certain times of year.
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Rob
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Last edited by robski; 21-03-06 at 10:35.
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