A few basic questions about exposure

[glen_h]

<p>A few months expired should be fine. </p>

<p>But if the film gets too warm, even way before expiration, the results can be bad.</p>

<p>Kept cold, even frozen, it will last years past expiration.</p>

<p>An automatic full stop overexposure it too much. I sometimes round off to the nearest whole stop, toward over exposure for negative films, underexposure for reversal films, so maybe a half stop over.</p>

<p>But it all depends on printing. One result of the large latitude for negative films is that you have to be twice as good at printing exposure. That is, it is much easier to get the exposure wrong at print time. Also, the color is more sensitive at print time, so it is usual for printers to do autoexposure and auto color balance. And both of those can be confused by background.</p>