Yes as long as it's not pre AI
Yes
and nikon camera can use a nikon lens, try a D3000, a D50, or a D9
The best flash options for the Nikon D50 camera are the Nikon SB-600 and SB-800 speedlights, as they are compatible with the camera and offer advanced features for better lighting control.
The Nikon D50 digital camera features a 6.1-megapixel sensor, 2.0-inch LCD screen, and a maximum ISO of 1600. It has a continuous shooting mode of 2.5 frames per second and uses SD memory cards for storage. The camera also offers various shooting modes and manual controls for customization.
Read the user guide
It has an "F" lens mount. source: http://www.dpreview.com/reviews/nikond50/page5.asp
no, you would have to get a nikon module
A review of the Nikon D40 and D40x digital cameras by Nikon expert Thom All of those things come into play when choosing between a D40 and a D50, You can find the full comparison of current Nikon DSLRs here if you want the full list.
Yes, it will fit. However, you will still need to see if the lens you have has or does not have features like autofocus or CPU connectors that will carry all the info that your camera needs... If it is a Nikon Lens it will work fine. So will others like Sigma, Tamron and Tokina. Carl Zeiss may not give you all the functions but will work in manual mode.
Yes, you can connect a Vivitar 285 flash to a Nikon D50 camera, but you need to use a compatible trigger or an appropriate hot shoe adapter, as the Vivitar 285 uses a manual trigger system. Ensure that the flash is set to a compatible power setting to avoid damaging the camera. Additionally, it's important to check the voltage of the flash to ensure it won't exceed the trigger voltage limits of the Nikon D50. Always follow safety precautions when using older equipment.
Yes, pre AI lenses may cause damage though