Originally Posted by adresaba
Hello. I have and using two OM2 cameras and few beautiful lenses but spot metering and brighter meter reading in viewfinder of OM4 sounds like it would be very helpful to me...
Another (cheaper) option is an OM-2S (or OM-2SP, same thing). Despite the 2 in the name, it is a later camera that uses the OM4 chassis but with a simplified spot light meter. The OM-4 has a mutil-spot mode that lets you trigger it multiple times (this has advantages in complete lighting situations). The OM-2S is just a regular spot (works just as Jajong described it).
Also, just like the 4 (or 3, which is identical to the 4 except that it uses a mechanical shutter instead of electronically timed) is that if you leave it in Auto mode, it'll do scene averaging just like your OM-2. If you want scene averaging but with full manual, just half press the shutter in Auto mode and it will read out the light value in the view finder, then you switch to manual mode. It's very simple and quick - obviously I'm a big fan.
I don't know if all the 2S or SP models got the circuit upgrade, but I think they did (someone correct me). Mine is pretty good on batteries; no camera that uses SR44 batteries is great, they just don't hold that much electricity. On the plus side you can buy energizer "357/303" batteries in 5 packs off amazon for the price of a single SR44 at my local pharmacy, and they take up no room in a camera bag so there's no reason not to have plenty of spares with you.