Not directly. They have very different optical formulas, the F shares it's optical design with the M and A 28mm f2.8, I hate to say it but I've always heard that they were somewhat inferior, especially to the K 30mm f2.8.

There are detailed discussions of them on Stan, old lens comparison site.

<http://stans-photography.info/LongComments.html#28%20mm%20f/2.8%20FA%20AL>

On 6/12/2012 2:36 PM, Collin Brendemuehl wrote:
... the F&  FA 28/2.8 lenses?

Sincerely,

Collin Brendemuehl
"He is no fool who gives what he cannot keep to gain what he cannot lose"
-- Jim Elliott








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Don't lose heart, they might want to cut it out, and they'll want to avoid a 
lengthly search.


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