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Canon Image Challenge | all galleries >> CIC 236 Water >> Exhibition > Reprising
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18-Sep-2022 Dave

Reprising

Canon EOS 80D ,Canon EF 135mm f/2L USM
1/200s f/4.0 at 135.0mm iso1000 full exif

other sizes: small medium original auto
comment
Canon Image Challenge29-Oct-2022 15:09
Months passed from when it last worked until I replaced the bulb (that ladder thing, and also longer summer days). I doubt it ever worked when it contained water. As for not shorting out, maybe I was just lucky.

Dave
Canon Image Challenge29-Oct-2022 04:51
Now I am more confused. If you actually turned it on over time, then it could not be cracked enough to let water in. And the water should short it out.

Jim
Canon Image Challenge29-Oct-2022 03:10
Many years? Maybe four or five. It doesn't get a lot of use. On average about twice a month and rarely for more than an hour. Of course it endures all the heat and cold that Michigan weather can throw at it.

Dave
Canon Image Challenge28-Oct-2022 02:52
The cracks will let some water in, no doubt. But I recall that the bulb was not exposed "in the raw". But it was there for many years. Still a puzzle to me.

And yes, the blue is strange as well - has to be some chemical contamination.
When I asked Google the question about metal oxides turning water blue I got the response
The hydrate of copper (II) chloride is blue-green in color. Copper sulfate is also a possibility. Both copper (ii)chloride and copper sulfate.

Thus it could come from the copper wires supporting the filaments.

Jim
Canon Image Challenge28-Oct-2022 02:19
There are very small cracks at the top of the bulb, through which I believe the water seeped. It's the blue that has me stumped.

Dave
Canon Image Challenge26-Oct-2022 20:45
I still don't know how you got so much water into the bulb.

Jim
Canon Image Challenge26-Oct-2022 20:24
Good for the last challenge as well as this one. PA
Guest 24-Oct-2022 14:54
Getting extra miles out of that one? :)