There is no magical size/weight advantage

Started Mar 5, 2014 | Discussions thread
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Photo Pete Senior Member • Posts: 2,772
But there is an optical size and weight advantage!

The only thing that the designer of the CX 70-300 couldn't make significantly smaller than the FX 70-300 would be the front element diameter.

Weight, main lens diameter and even length could be made less if required due to the smaller light cones required within the lens to cover the smaller sensor. Whether Nikon choose to do so is another matter.

The idea that length is not affected by being able to deal with narrower light cones is a fallacy.
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Have Fun
Photo Pete

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