10
4.3
Photomicrography cautions
In general, the procedure for taking photographs (including digital camera photographs)
is the same as usual. This section describes special considerations that apply when
taking photographs with the SDK attachment installed.
1. Provided that the primary observer’s position is on the right side, you can take
photographs that include the pointer using a eyepiece adapter.
2. Pointer brightness is set higher than specimen brightness to ensure adequate
contrast. This has the following effects on photographs that are not apparent during
visual
observation.
a) Since the pointer is always overexposed when exposure is correct for the
specimen, the pointer color will fade to white in color photographs.
b) When taking a photograph with a photomicrography system with automatic
exposure control, the brightness of the pointer will cause the specimen to be
underexposed. To prevent this, set the photomicrography system’s specimen
distribution
compensation
dial to the “OVER’ position.
c) Since the effects of the pointer are greater when making long exposures of dark
specimens,
first
check
the
exposure time with the pointer illumination turned off.
Then, after turning the pointer illumination back on, make the exposure manually
with the exposure time identified above.
3. Take photographs from the primary observer’s position.
*
When taking photographs, be sure to place the reverse incidence prevention cap on
the secondary observer’s eyepieces.
*
To avoid reducing stability, do not install the photomicrography system / digital
camera at the secondary observer position.
