I presently use a Gossen Luna Pro. This meter is now 3 stops off and I'm having to deal with the mercury battery issue as well. Instead of getting the Luna Pro calibrated and buying the battery adapter available on the market, I have been l ooking at possibly buying a used Minolta Autometer II at a local camera shop for $75.00. Any comments on this Minolta meter and what type of cell cover is neede d if the meter is used as a reflective meter. The meter in the local shop has no cell cover but I have seen covers that have a smaller hole as well as the incid ent covers. Thanks!