The teleconverters cut your aperture. More importantly - I would imagine (excepting the highest end lenses/teleconverters) i could see it affecting focus speed/ability.
I like primes in theory - but in practice, in the situations that i've been wanting a longer lens, i've also been having things shift enough that if I were shooting primes i'd be spending half my time switching lenses : )
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Date: 2006-03-20 11:17 pm (UTC)I like primes in theory - but in practice, in the situations that i've been wanting a longer lens, i've also been having things shift enough that if I were shooting primes i'd be spending half my time switching lenses : )