LSM 510
OPERATION IN EXPERT MODE
LSM 510 META
Image Optimization
Carl Zeiss
03/06
B 45-0021 e
4-349
4.14.1.2
Pinhole / Detector Gain /
Ampl. Offset / Ampl. Gain
•
In the
Scan Control
window, click on the
Cont.
button (see Fig. 4-326).
−
This starts a continuous scan.
•
Use the
Pinhole
slider to set the pinhole
diameter in the
Scan Control
window under
Channels
.
−
The pinhole diameter should be so small that
there is still enough variation for the setting
of the detector gain and that sufficient
image information is still available. 1 Airy is a
good value to enable a confocal fluorescence
XY-image to be obtained.
−
A small pinhole diameter will increase the
depth of focus, but reduce the light intensity
received by the PMT photomultiplier (for
reflection mode confocal images start with a
pinhole value of 0.5 Airy Units).
−
The influence of the pinhole diameter on
image creation is shown by the example in
Fig. 4-328. The entire image was first
scanned with too large a pinhole diameter.
The pinhole diameter was then optimized for
a defined ROI. This considerably improved
the display of the specimen structures.
Fig. 4-328
Image Display window with confocal
ROI