Quote:
Originally Posted by Starkler
People who come over for a chat while using those overly bright head torches. While facing you and talking the blasted thing is shining straight into your eyes 
Bright laptop screens! One fellow I know has got it right. He uses a clip on shield with external red led to illuminate his screen from the front and it doesnt bother anyone and works well. |
Those two are very high on my list of pet hates.
Let me extend the first one a step further. Those people who think you can't see what you're doing in the dark when you're changing eyepieces or adding a filter without a torch and decide that it would be in your best interests for them to shine their 800 gigawatt red light head torch right at your focuser and your face to help you see what you're doing.
Quote:
Originally Posted by Starkler
People who turn up to such sites with headlights blazing and then interior car lights on.
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I don't have a problem with this in any way. Exposure to car headlights for a fleeting second doesn't affect your night vision at all, if you look away. It isn't safe to drive around obstructed fields at night with only your parking lights on, or worse still, no lights . I would rather I had to turn away for a few seconds to preserve my night vision than one of my friends run into a tree, a friend, or a friends equipment or into a big hole.
Similarly, despite a lot of popular belief and comment to the contrary, exposure to an interior car light for a minute or so doesn't harm your night vision at all. Or at least it doesn't harm mine. A lot of people only think it does. If you do a limiting magnitude test on a target after a short exposure to an interior car light you will find you have lost nothing.
Cheers,
John B