Estimate dew risk from temperature and humidity so you can protect lenses and correctors during tropical night sessions.
Frequently asked questions
What spread means high dew risk?
When air temperature is within about 2°C of dew point, optics fog quickly. Heaters or dew shields help.
Why is Guyana dew-prone?
Coastal humidity stays high after sunset. Even a clear night can soak a corrector plate without a heater strip.