Allows direct photography contact without lens system loss
Gains of 50 to 100 over direct photography reported
Typical Operation
Mode
Plate V
Gm (µmhos)
Rp (Ω)
µ
Plate mA
Image Intensification
16000 V
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Application Notes
The FW-109 is designed for photography of stellar spectra where film is brought into intimate contact with the mica window to minimize resolution loss.