What is a better prime lenses for Nikon DSLR 1.8 35MM or 50MM?

Shooting short films, and videos, and what are the differences?

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Rubbish night shots with nikon d3100!

I'm 14 and i got a nikon d3100 for my birthday in August.i've never had a slr before so i'm not very good at using it, i take really good phoos in the day, but when it goes dark. My photos turn out rubbish and look like i've used a cheap camera. How do i get them nice and clear and professional looking? Thanks, will help A LOT! X

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Hesitating between 2 cameras?

My birthday is approaching and I would like to ask for a camera that's:
-compact, light
-great image quality
-for travelling
-not too expensive
-stylish
-pretty easy to use
-explorable
So I did a bit of research and now I'm hesitating between the Nikon 1 J5 and Olympus OM-D E-M10. Which one would you suggest?

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Photos are underexposed?!

Ok, so I was using my square nd filters which i stacked 3 together(0.3,0.6,0.9) and i was taking photos on a sunny dayof flowing water. When i used my cameras settings on aperture priority mode my photos came out really underexposed (like nearly black) and when i went on auto settings the same thing happened! Why is this happening? How can I fix this? How can I stop it from happening?!
PS sorry this is my first time using nd filters
Added (1). i am using a nikon d3300, viewfinder and no exposure compensation

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How tolerable are DLSRs to moisture and humidity?

I'm going to south east Asia during the rainy season and I'm contemplating wether or not to bring my camera. My camera is a Nikon D5500 if that matters. What would you recommend doing? (P.s. Im not stupid enough to use it while it's raining, my main worry is the humidity/moisture will damage the cameras electronics).

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