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4. Shooting with Infrared Film
When using black-and-white infrared film make a slight adjustment
in focus with the red infrared index.
For example, focus the subject first, then if the lens is focused at
5m on the distance scale, turn the manual focusing ring to align the
5m mark with the red dot and release the shutter.
· When using infrared film, use a deep red filter as specified by the
manufacturer.
· The infrared index mark position has been computed for infrared
film usage with peak sensitivity at 800nm.
· Read the manufacturer's instructions when using color infrared
film.
Accessories
Speedlites 420EZ/300EZ
These are high-performance, electronic flash units featuring A
(Advanced)-TTL automatic flash output control, which respond to a wide
range of illumination from dark surroundings to bright (fill-in flash). They
have a built-in auto internal zoom mechanism in the flash head which
automatically adjusts the flash coverage angle to use flash energy more
effectively. In addition, the rapid-fire flash system enables you to take a
flash picture in no less than 1 second with the 300EZ or 1.5 seconds with
the 420EZ. The guide numbers are 35 (ISO 100.m) or 116 (ISO 100-ft.)
with the 420EZ, and 28 (ISO 100.m) or 93 (ISO 100.ft.) with the 300EZ.
· The above figures show the guide numbers when the flash head is set
at the 50mm position at full charge.