Film Plane Position - Hasselblad 503CW User Manual

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Film plane position

501CM..31
980326
In close-up photography the film-to-subject distance can be an important factor when
determining an accurate focus setting.The red line in the illustration marks the location
on the film magazines that coincides with the film plane position.
COPYRIGHT © 1998 ANDERS ENGSTR÷ M
ANDERS ENGSTR÷ M, ILLUSTRAT÷ R
General points and tips
÷ stra v‰ gen 46
430 91 H÷ N÷
tel/fax 031-96 84 64
anders@aeillustr.se
• Before you can make an exposure, you must remove the magazine slide. The maga-
zine will then be locked on the camera body, and the camera release button will be
unblocked.
• Film is automatically advanced in the magazine after a full turn of the crank.
• You cannot remove a film magazine without re-inserting the magazine slide first.
• Do not attach a magazine showing red to a fully wound camera! This could result in
a double exposure.
• The magazine's film winding crank is only blocked at frame 1. A partially exposed film
may be wound off at any frame afterwards.
• On the rear of the magazine is a slide pocket where the magazine dark slide can be
kept when not in use. Turn the slide with the hinge towards the rear to fold the bow
fully into the slide pocket recesses.
• Do not put the film holder down on an unclean surface or where it can attract dust.
• Clean out the magazine housing regularly removing not only dust and particles but
also any scraps of paper from previous rolls that may have remained inside.
• Each magazine housing and film holder form a carefully matched pair. Be careful,
therefore, when loading more than one magazine at a time not to switch housings
and holders. The last three figures of the housing serial number should correspond
with the serial number on the film holder.
• Load and unload the magazine away from direct light sources.
• If you keep the slide inserted in an attached magazine, it will act as an exposure lock
to prevent inadvertent exposures when the camera and shutter have been wound
on.
• Align the arrow on the paper backing of all Ilford black & white films against the
oblong index (and no further) on the spool clamp bar and not the triangular index as
normal.
Using infrared film
Infrared (IR) rays (wavelengths longer than 800 nm) form an image on a plane further away
from the lens than the image plane for visible light. To compensate for this difference you
have to align the chosen distance against the red IR index and not the normal central index.
Proceed as follows:
1. Focus as usual on the focusing screen.
2. Note the distance on the focusing scale that is opposite the central index line.
3. Now rotate the focusing ring to set this distance opposite the dashed IR index line
instead of the central index line.

Please observe the special information that came with your IR film regarding magazine
loading, film development, etc.
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