I'd invest in a hand-held meter if you can. Relying on another camera's meter is a bit hit and miss. Also, your metering technique will vary depending on whether you are shooting transparency or negative film stock.
To get the best results...
For transparency, you need to expose for the highlights (similarly for digital you need to do the same) to stop them blocking up.
So, for example, take a meter reading off the part of the scene where you want to have detail in the highlights and increase the exposure by 2 - 21/2 stops. So, an indicated shutter speed of say 1/250 would become 1/60 or an aperture of f11 would become f5.6
For (B&W) negative film, you need to expose for the shadows and develop for the highlights.
In this example, you take a meter reading from a shadow area where you want there to be detail and decrease the exposure by 2 stops. So an indicated shutterspeed of 1/60 would become 1/250 or an aperture of f8 would become f16.
Regards
Mark