Where can I get a replacement Reflex Mirror for a vintage SLR Camera?

I bought an old Nikon FG SLR camera at a local thrift store for $6.40. The body is great, the lens is still in good condition, problem is, it's missing the reflex mirror inside the camera. I know that's a crucial part of the camera and I was wondering if you can get a replacement for it. If so, where can I get one? I tried looking on Ebay and I can't seem to find any.

Best film camera to purchase? Canon AE-1 vs Nikon N80?

I just love the look of film photos, I think they're infinitely more beautiful than digital pictures. Still, I really don' know anything about photography and the kinds of cameras there are. What is the best film camera to purchase? A lot of people have told me both the Canon AE-1 and the Nikon N80 are good… Which one would be the best out of these two?

Can you buy lenses for a nikon 810?

I just got my camera in August. I really wanna buy more lenses like the fish eye lens and others like that. But, I'm not exactly sure if you can change the lens with this camera.

Are orbital defense plateform possible?

MAC cannon from Halo 1, 2, 3, 4 in other words? Maybe we can blow some Grey alien or reptoid mother ships

info
A standard ship-based MAC fires slugs of either ferric Tungsten or depleted Uranium and aproximately 9.1 meter's long at around 30, 000 meters per second.[2] The high muzzle speed gives the 600-ton slug the kinetic energy and momentum necessary to damage a target and partially mitigates the unguided nature of the slug and its lack of maneuverability. Orbital Defense Platforms fire a 3, 000-ton slug at point four-tenths, or 4% of,[3] the speed of light, around 12, 000 kilometers per second.

Added (1). One thing to add those things gain there energy from a wireless source on the ground kind of like the new tech there researching on wireless recharging.look it up.

How to double expose film on a Nikon N75?

I do have access to a darkroom, so I could just layer my negatives over each other--but I'd like to learn how to double, triple, etc.expose the film on my Nikon N75 camera. (If possible.)

I haven't been able to quite make sense of how to do it with the manual of the camera, so I was hoping someone on here might know how to do it. If you know how, please enlighten me! It would be much appreciated.

Added (1). Ah, well it would make sense that I didn't understand, because I was looking in the wrong place. I was looking at trying to rewind the film, on page 78. Guess I'm not the brightest.

Thank you for your help! I think I understand it now!

Best Point&Shoot camera for low light and sports?

I need a point and shoot camera that is good in low light and good for movement.
I have tried several one's from canon and nikon and now my latest one is the samsung wb150.
But none i've had got me really excited about the pictures it took at night outdoors. Or when i try to take pics of my 2 year old… They always come out grainy and blurry and with ugly shadows…

Is there a camera you have or would suggest that can give me what i'm looking for?
And i do have a DSLR camera but i'm looking for a smaller size that can come close to what the DSLR can do.

Is it a good idea to bring a Nikon camera to Dominican?

I've heard a lot of peoples expensive items get stolen but we're going to this really nice resort in March. I'm going for a wedding so I want to get really good pictures.

Are you a Nikon or Canon person?

And why!

How close can a Nikon 18-105mm lens focus?

If you are going to answer 18 mm better don't! Because I want to know the real life distance in CM. I know that the maximum focus is Infinite how about the minimum?

Blurry camera pictures?

I took some pictures using a cheap Nikon compact digital camera and when going back to look at them most came out blurry. The environment I took the pictures in had poor light and there was a lot of movement from the people in the picture.
I have taken good pictures in good light with moving objects in the past.
Is there anyway that good pictures can be taken without the blurriness or do I really need to get a more top end compact camera to get good pictures in that situation?