On Wed, 17 Mar 1999, Barry B. Bean wrote:
|What would you expect to give up shooting a 50/1.4 with a 2x
|teleconvertor compared to shooting with a 100/2.8?
You lose some sharpness due to a drop in contrast. The TC introduces
more air-glass surfaces to the 50/1.4's own glass ensemble. As the
number of air-glass surfaces go up, contrast declines.
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