[OM] Re: Tamron Adaptall 2 /OM4

[John Duggan]

According to a tamron U.K.Repair technician adaptall 2 mounts have the 
following coding (looking at the rear end which mates with the Olympus camera 
mount)
                     .....OM......suitable for all Olympus cameras up to OM2S
                     .....OL.......suitable for all Olympus cameras including 
OM4 and
                                       OM4T and TI.
                           Both fittings have four screw holes - the later OL 
mount has the fourth screw hole repositioned to avoid problems with the reset 
pin. I have this fitting on my Tamron sp 90MM F2.5