Hi Bob, The bellows has no electrical contacts so the camera sees it as a K or M lens. As such it won't work P-TTL for flash. If you modify the A extension tube the camera sees the bellows as an A lens and P-TTL works.
The modification involves removing a couple of the pins and swapping one contact to another position. Leon http://www.bluering.org.au http://www.bluering.org.au/leon Bob Sullivan wrote: > Leon, > What did you do to the 12mm "A" extension tube to convince the camera > it is an A lens? >> I have also bought a 12 mm "A" extension tube and modified the pins to >> convince the camera that it is connected to an A lens. This lets you >> use PTTL flash, but doesn't give you accurate metering (I'll tell you >> what needs to be changed if you are interested and want to go down this >> route. It also lets you mount the K10D (and *istD and MZ-S and Z1P) >> onto the bellows without a lot of mucking around (it just doesn't fit!) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
