Gossen Lunasix 3 con imballo | 光度计
编号 81217935
已售出
最终出价
€ 2
7周前
Vibrator factory Leningrad-4 + Leningrad-7 | 光度计
Photoexposure meter "Leningrad-4"
Magnetoelectric device with key switching of two measurement limits for brightness and two for illumination and a protective shutter-diaphragm that protects the selenium photocell from light overloads in low-sensitive mode. Plastic microlenses are located in front of the photocell. Removable milk filter.Made in USSR
"Leningrad-7"
Magnetoelectric device with two brightness ranges and three illumination ranges. The light detector is a selenium photocell. The photocell window is transparent, without microlenses. Highly sensitive modes are activated by moving the photocell forward (key).Made in USSR. 9*6*3 cm
编号 81217935
已售出
Vibrator factory Leningrad-4 + Leningrad-7 | 光度计
Photoexposure meter "Leningrad-4"
Magnetoelectric device with key switching of two measurement limits for brightness and two for illumination and a protective shutter-diaphragm that protects the selenium photocell from light overloads in low-sensitive mode. Plastic microlenses are located in front of the photocell. Removable milk filter.Made in USSR
"Leningrad-7"
Magnetoelectric device with two brightness ranges and three illumination ranges. The light detector is a selenium photocell. The photocell window is transparent, without microlenses. Highly sensitive modes are activated by moving the photocell forward (key).Made in USSR. 9*6*3 cm
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