अपने रात दृष्टि के संरक्षण के लिए एक लाल खगोल विज्ञान फ्लैश लाइट।
Preserve your night vision with this useful red light utility. A red light (red flashlight, or torch) is a necessity for anyone using a telescope for astronomy or astrophotography at night. The red light is bright enough to read a star chart or find cables and connectors during your astronomy or astrophotography night session. The brightness can be controlled by swiping down or to the left to dim, or by swiping up or to the right to increase the brightness. Short or fast swipes will increase or decrease the brightness in small increments. Long slow swipes will increase or decrease the brightness to the maximum or minimum. Double tapping on the display will toggle between minimum brightness and maximum brightness. This is simple to use utility for the amateur astronomer or astrophotographer. (red light/torch)