Yes that what I have found. Checked it on the istD with the same results. Strangely on an A lens MTF results in default f8 and P mode in f5.6. The 18-55 prefers 5.6 in MTF. Strange...
On 5/26/07, Joseph Tainter <[EMAIL PROTECTED]> wrote: > > When I set the program line to MTF my camera always > > wants to use wide > > open aperture on the 16-45 which isn't what MTF > > should do. > > Unless it is. Other FA lenses on MTF program have > given me f/5.6 through much of the range (on my Z-1p; > haven't checked on the D or k10D), IIRC. Maybe f/4 > =is= the best aperture. > > Rick > > ----- > > MTF program line will give F4 from 16-28 mm., and F4.5 above that. > > At least on my DA 16-45, F4-F4.5 are demonstrably not the best > apertures. They are good and useable, but not the best. > > This problem has made me wonder if Pentax didn't implement MTF properly > in the DA 16-45's chip, or in the DSLRs. > > Joe > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- -- Toine http://leende.net/peso -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
