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05-26-2014, 07:42 AM   #1
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Pentax K-x LCD Dims When Rotated?!?

I noticed something new yesterday.. When I rotated my camera to take a vertical shot.. My LCD went dim.. I could still see it, but it was very dim/dark and barely visible.. Rotate back? Fixed.. What's happening here??

05-26-2014, 08:04 AM   #2
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normal for LCD screens have polarized light output
you are probably wearing polarized glasses
05-26-2014, 08:08 AM   #3
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QuoteOriginally posted by Na Horuk Quote
normal for LCD screens have polarized light output
you are probably wearing polarized glasses
I feel so stupid now.. because I was..


05-26-2014, 08:33 AM   #4
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many of us just had the luck to figure it out before posting a thread about it
similar effect happens if you have a polarizing filter on the lens and look through the OVF, or if you have polarized sunglasses with some phones and laptops. Some modern smartphones are designed so that they don't dim when looked at with polarized sunglasses - instead, the screen just gets weird rainbow patterns across it.
Btw, many (all?) variable ND filters are actually just two polarizing filters stacked together. Same effect, only designed to not allow total dimming

05-26-2014, 05:30 PM   #5
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I honestly had no idea.. Amazing sometimes how simple something really is..
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