Best way to sell a slightly almost new DSLR camera? Nikon d5500? 18-55 mm lens?

i bought a nikon d5500 about a month ago. I only used it once. I have no time for photography and would like some money /: loved this camera. Its in flawless condition. Used once and then put back in all original packaging. Includes cables, battery and charger, memory card, and 18-55 mm lens. Ebay is a rip off with all their fees, so im trying to sell it somewhere else. I bought it for $850 and im selling it for $550 including everything

Read more: Best way to sell a slightly almost new DSLR camera? Nikon d5500? 18-55 mm lens?

The small mirror of my shutter speed fell?!

So the shutter speed inside the body of my nikon have this small mirror, and today when I wanted to take a picture I noticed there was some clicking noise so i took off the lens and discovered that the small mirror fell off, so I was wondering can I fix it myself and stick it back on the plastic parts of the shutter or I have to take to a professional?

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Why won't the ISO settings change on Nikon D5100?

So I borrowed the 5100 for the weekend, and I'm having problems with the ISO settings. I have the camera on manual mode, the ISO is also on manual, but when I change the ISO level from 100 to 6400 there is absolutely no change. I don't understand why this is when both the camera and ISO setting are in full manual. Can you help?

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Does the Nikon D90 have selective colour? - 1

Also what other effects/features does it have?

Help is muchly appreciated, Thanks.

Read more: Does the Nikon D90 have selective colour? - 1