# Minolta Auto Meter 3

Discussion in 'Sony/Minolta' started by paul_clayton, Jun 14, 2006.

1. ### paul_clayton

Hi

I have a Minolta Auto Meter 3 and I aslo have the instruction manual. However
I am still unsure on how to use the meter.

Basically, you set the ISO and the shutter speed. The meter then gives you
the corresponding f number. The f number is follwed by a third digit of any
value between 1-9. What does the third number mean and how does it effect the
exposure setting?

The manual says that the thrd figure should be divided by 10. eg 5/10 = 1/2.
underexpose by 1/2 stop. But what about the number 8 for example?

Can anyone give a plain english way of using the meter?

Thanks, Paul

2. ### ivan_dzo

Paul, it's purely a decimal reading. so 8.8 is 0.8 or 8/10's. F stops on your camera maybe in whole, half or third stops. You set it to the nearest you can, eg 8.3 means F8 and a third of a sotp, you would set it to either F8 if whole stops, F9 if half stops and what ever your camera says if it does third stops.

3. ### paul_clayton

Thanks for the response. So lets see if I get this right.

Taking f8 as a reading, the following needs to be applied for the relevent decimal number:

8.1 = f8 + 0.1 overexposure (impossible to achieve in camera?)

8.2 = f8 + 0.2 overexposure (impossible to achieve in camera?)

8.3 = f8 + 0.3 overexposure (can add in camera if 1/3 increments are possible)

8.4 = f8 + 0.4 (impossible to achieve in camera?)

8.5 = f8 + 0.5 (can add in camera if 1/2 or 1/3 increments are possible)

8.6 = f8 + 0.6 (impossible to achieve in camera?)

8.7 = f8 + 0.7 (can add in camera if 1/3 increments are possible)

8.8 = f8 + 0.8 (impossible to achieve in camera?)

8.9 = f8 + 0.9 (impossible to achieve in camera?)

So f8 + 0.4 really means that f8 with overexposure somewhere between 1/3 and 1/2 stop. I can really use either of the two.

Thanks

Perfecto!

5. ### paul_clayton

Thanks Ivan, much appreciated

6. ### paul_clayton

Actually I think I got it wrong, the manual states to inderexpose by the above values, NOT overexpose.

7. ### ivan_dzo

No you are right. If it reads 8.4 and you expose at F8 then it will have nearly half a stop of overexposure. It needed less light and you gave it more = overexposure. The 1/10 decimal seems strange but is useful for slide film.