Gossen Luna-Pro S
When my Studio S started to die, I began to think about what meter I would take it's place. Since I found that I didn't care too much for the newer Studio Deluxe meters, and since sometimes a reflected light meter is preferable over an incident only meter I decided to get a Luna-Pro.
The Luna-pro meters have been around for a long time, but I decided to look for the relatively rare "S" model, which was the last of the Luna Pro's. I'm not sure when it was introduced and discontinued, but it's listed in BHPhoto's last Pro 35mm Source book which I received sometime around 2003 with a list price of $399 (I paid about $60 for mine).
The great thing about the S model is that it has a calculator dial with much more information on it that the dial on the older Luna-Pros. While still a large meter, it is significantly smaller than the Luna-Pro SBC which makes it easier to carry around. While it has a CDS measuring cell and thus requires a battery, unlike selenium meters it is usable in very low light.
The one problem with the Luna Pro meters is that they were designed to take the obsolete 1.35v mercury batteries, which have no true replacement. Gossen does sell an adapter that will convert the voltage of modern 1.55v silver oxide batteries to the correct voltage, but the adapter costs $40.
However, some, but not all, of the Luna Pro S models came from the factory ready to take the modern 1.55v silver batteries. My meter is clearly marked on the back "takes 1.55v batteries.
Or does it? In actuality when you open up the battery compartment you see that it is the same size as the compartment on the older Luna Pros. It looks to me like Gossen didn't really change the meter to take the modern batteries, they simply started to include the adapter with the meter. I confirmed this by removing the adapter and popping in a couple of hearing aid batteries (which have a voltage that is close to the original mercury cells), and the meter gave the correct reading.
gossenlight meterluna pro s