Photron FASTCAM ultima APX-i2, Hardware Manual

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FASTCAM-ultima APX-i2 Hardware Manual
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4.4.1. Switching Shutter Speed Steps
The APX-i2 system offers two choice of shutter speed increments, or steps, – FINE and
COARSE – to choose from. With both sets of steps, the lowest shutter speed is 1/60
second with the speed doubling at each increment for the next five steps, up to 1/2000
regardless of which step mode is selected. After that, the COARSE step option causes
the speed to double for the next several steps, and then offers users the more
frequently-used shutter speeds.
With FINE steps, the shutter speed gradually increases after the 1/2,000 second
threshold, in much finer increments of 1/1,000 seconds. With both options the highest
shutter speed is 1/250,000 seconds.
Note: See the Shutter Speed Table, Section 6.1.6. for details of COARSE steps.
You can choose one of the two sets of shutter speed steps by the following operation:
1. Press the MENU button on the keypad to display the menu list.
2. Move the cursor to [SHUTTER STEP] and press the joystick down to select the
menu.
3. The SHUTTER STEP menu is displayed as follows:
SH UTTER STEP
SH OR T
L ONG R ESERVED
L U T SEL EC T
CA LIBRATE
D S SHU TTER
D IGITA L I/ F SET
TIME SET
DA TE/ TIM E
SH UTTER STEP
SYSTEM R EV
4. Move the cursor to [FINE] or [COARSE].
5. Press the joystick down to set the selection.
Note: See the COARSE Shutter Speed Table, Section 7.1.6.
FINE Shutter speed can be increased with 1/1,000 second step after 1/2,000.
COARSE 27 frequently-used shutter speeds are available to choose from