Canon A-1 User Manual
Page 83
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level so that higher shutter speeds can be
used. Even when following the instructions
of the film data sheet, it is advisable to
slightly adjust the exposure over several
shots to get at least one perfectly exposed
image.
Be especially on the alert for reciprocity
failure when using color reversal (slide) film
which has a smaller exposure latitude than
black and white or color negative film.
Having a smaller exposure latitude means
that it is more touchy about exposure error.
Incorrect exposure by only 1/2 exposure
step may make a noticeable difference in the
image results. Reciprocity failure with color
film will result in color shifts as well as
underexposure and may require corrective
filtration as recommended by the film manu
facturer.
7-