![Praktica MTL50. Does anyone know how to recalibrate this? I was took out the screw of shutter selector knob and messed up the light metering. How do I calibrate it back... Help : Praktica MTL50. Does anyone know how to recalibrate this? I was took out the screw of shutter selector knob and messed up the light metering. How do I calibrate it back... Help :](https://i.redd.it/ww10ym8v9kj01.jpg)
Praktica MTL50. Does anyone know how to recalibrate this? I was took out the screw of shutter selector knob and messed up the light metering. How do I calibrate it back... Help :
![Amazon.com : LATNEX Light Meter LM-50KL Measures Lux/Fc - LED/Fluorescent, Industrial, Household, and Photography - Calibration Certificate Included : Electronics Amazon.com : LATNEX Light Meter LM-50KL Measures Lux/Fc - LED/Fluorescent, Industrial, Household, and Photography - Calibration Certificate Included : Electronics](https://images-na.ssl-images-amazon.com/images/I/81lRobkhMJL._AC_UL600_SR600,600_.jpg)
Amazon.com : LATNEX Light Meter LM-50KL Measures Lux/Fc - LED/Fluorescent, Industrial, Household, and Photography - Calibration Certificate Included : Electronics
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