Nytech DC-8200 Capturing Pictures
38 - English
ASM Mode
In ASM mode you can set the aperture value and/or the shutter speed
manually. The enabled ASM mode is indicated by the icons A, S or M on
the LCD (see page 16 – Recording Mode, item 1). To disable the ASM
mode, you can also enable the record programme mode P by pressing the
camera mode button [10] and confirming by pressing the Set button [8]
(see also page 34 – Scene modes).
While in Recording mode press the ASM button [11] several times to cycle
between the following options.
Aperture
Mode: A
With a higher aperture setting, the lens opening will be smaller so less light
will incide onto the image sensor. By means of a circular shading
distribution a better depth of field can be achieved. A smaller aperture
value will reduce the depth of field, softening the far background and
sharpening the foreground (e.g. when taking a portrait picture).
The aperture value depends on the focus range, therefore the values differ
in tele and wide-angle mode. In wide-angle setting, press S or T on the
four-way button to select an aperture value between 2.8 (low aperture) and
5.6 (high aperture). Proceed the same way to select aperture values
between 5.2 and 10.4 for tele mode.
Shutter speed
Mode: S
The shutter speed determines the exposure time. The lens exposure
mechanism will be opened for a very short time when using a high shutter
speed, and less light will incide onto the sensor. For a lower shutter speed,
more light will incide onto the sensor causing a highly-exposed image.
Therefore, a high shutter speed requires a brightly-lit environment (e.g.
daylight or a bright flash). The advantage of the high shutter speed is that
any moving subject will be captured more sharply. The shutter speed value
is given in 1/n seconds.
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