What risk is specifically associated with looking through the optical viewfinder of older cameras pointed at the Sun without a filter?
Answer
The user’s retina can be burned or internal optical coatings damaged.
Intense sunlight focused through the eyepiece of an optical viewfinder acts like a burning glass, posing a direct physical danger to the user's retina and potentially damaging the camera's internal optical coatings.
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How to Photograph the Sun Safely - YouTube
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