3 stop" on my camera?

Question: How do I "set the film speed down a 1/3 stop" on my camera!?

I have a Konica Auto S2 camera so!.!.!. I am shooting film!. Someone told me to recalibrate it this way to use a new kind of battery in it!. I don't understand what this means! I am somewhat of a beginner and I thought f-stop was only for aperture!?!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

You can definitely do it!. If you're shooting ASA 400 film, set your ASA dial to 320!.

Here is my rule of thumb: I always overexpose print film by 1 stop, when shooting in daylight!. For instance, If I'm shooting 400 speed film, I set my ASA dial to 200!. The prints come out sharper, with better shadow detail!.

Do not use this technique with slide film, or when using flash!. In those situations, just set your ASA dial to the film speed!.

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It is true that f/stops are in reference to the aperture, how ever when someone speaks of "down a third stop", you can do that using the f/stop, shutter speed or setting the EV control on the cameras light meter!.

Since you are using this camera, we can assume you have dealt with the replacement of the banned mercury battery issue for the light meter and know that you are shooting with a mostly automatic exposure camera!.Www@QuestionHome@Com

You will often see shutter speed and ISO changes referred to in terms of "stops"!. One stop is a factor of two change in exposure!. ISO 400 film is one stop faster than ISO 200, for example!. Not getting into the math, 1/3 stop is a factor of about 1!.25!. But since most ISO dials have click stops at 1/3 stop intervals, all you have to do is set the film speed dial one click below the rated film speed!.Www@QuestionHome@Com

f-stop is in reference to aperture,not film speed!. Film speed uses the term asa speed, 200,400,1600, whatever!.you cant drop that 1/3 stop that is only in reference to apertureWww@QuestionHome@Com