Pentax SF10 - Using Afspotbeam Projector

3. Therefore, the effective flash range is between
0.7 meters and 3 meters.
Specifications of the RTF (at ISO 100)
Guide number (G.N.): 12
Recycle time: Approx. 4 seconds
Usable film speed; ISO 25 — ISO 400
Effective flash range: Approx. 0.9m - 4.3m (at f/2.8)
Usable lenses: From 35mm to 210mm,
35mm lenses usable at 1 meter
or farther.
Excluding macro lenses.
12. USING AFSPOTBEAM PROJECTOR
When the RTF is used in the dark, a red beam called
the ''AF spotbeam" is automatically projected to assist
the camera's auto-focus mechanism.
Note:
The spotbeam Is activated only when the KAF mount
lens or the AF adapter is mounted and the Focus mode
switch is set at [AF].
• The effective range of the AF spotbeam is approximate¬
ly one to four meters. If you do not wish to use the RTF,
put it back into the storage position after setting the
focus on the subject using the focus-lock function.
• The AF spotbeam does not work in well-lit locations.
• If in-focus signal [ O ] in the viewfinder is blinking,
the camera is unable to focus on the subject,
• When an AF spotbeam of the AF400FTZ or AF240FT
is used, the RTF's spotbeam is inactivated.
29*