Sony ILCA-99M2 - Manual (Page 127)

When shooting movies, ISO values between 100 and 25600 are available.
The available ISO settings will differ depending on whether you are shooting still images, shooting
movies, or shooting slow-motion/quick-motion movies.
When you select [ISO AUTO] with the shooting mode set to [P], [A], [S] or [M], the ISO sensitivity will
be automatically adjusted within the set range.
Hint
You can change the range of ISO sensitivity that is set automatically in [ISO AUTO] mode. Select
[ISO AUTO] and press the right side of the multi-selector, and set the desired values for [ISO AUTO
Maximum] and [ISO AUTO Minimum].
[104] Shooting Selecting the ISO sensitivity
ISO AUTO Min. SS
If you select [ISO AUTO] when the shooting mode is P (Program Auto) or A (Aperture Priority),
you can set the shutter speed at which the ISO sensitivity starts changing.
This function is effective for shooting moving subjects. You can minimize subject blurring while
also preventing camera shake.
Menu item details
FASTER (Faster)/FAST (Fast):
The ISO sensitivity will start to change at shutter speeds faster than [Standard], so you can
prevent camera shake and subject blurring.
STD (Standard):
The camera automatically sets the shutter speed based on the focal length of the lens.
SLOW (Slow)/SLOWER (Slower):
The ISO sensitivity will start to change at shutter speeds slower than [Standard], so you can
shoot images with less noise.
1/8000
― 30":
The ISO sensitivity starts to change at the shutter speed you have set.
Hint
The difference in shutter speed at which ISO sensitivity starts to change between [Faster], [Fast],
[Standard], [Slow], and [Slower] is 1 EV.
Note
MENU
→
(Camera Settings1)
→ [ISO AUTO Min. SS] → desired setting.
1