05-13-2011, 05:39 AM
Until then, you can take a look at the Pentax DA 35mm f/2.8 - the numbers can't be directly compared, but they will give you a hint. Pentax was kind enough to let Tokina use the optical design of a Limited; a pity that the Tokina is so ugly.
http://www.opticallimits.com/pentax/393-pentax_35_28
http://www.opticallimits.com/pentax/393-pentax_35_28