All that the FA-J and DA series lenses need in an "aperture  
simulator" ... or, more precisely, aperture position indicating  
lever ... is a slot in the mount. The mechanical aperture ring  
following lever in a non-Program equipped body will default to  
minimum aperture, which will be the correct setting for any lens  
without an aperture ring or an A series lens set to the A position.

All the non-aperture ring lenses I've seen (DA and FAJ) have this  
slot. Since they do not have an aperture ring, they cannot have an  
indicating lever to follow its motion. Aperture setting on these  
lenses is regulated solely by the iris actuating mechanism in the  
bodies so equipped to work with them.

Godfrey

On Oct 2, 2007, at 11:16 AM, Lucas Rijnders wrote:

> Nope, the FA J 18-35 has an aperture simulator (fixed at f22, of  
> course).
> As far as I know (but I admit that's hearsay) the other two FA J's  
> don't
> have it.
>
> We are now entering the really obscure corners of Pentaxology :o)
>
> Op Tue, 02 Oct 2007 09:00:50 +0200 schreef David Savage
> <[EMAIL PROTECTED]>:
>
>> FAJ: KAF mount (crippled), minus aperture simulator & aperture ring.
>>

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