How do i stop lens flares when i'm using a long lens (35mm-105mm zoom telefoto) on a 35mm SLR camera?

I developed a roll of color film and i got a lot of pics with lens flares on them, howed they get there and how can i get rid of them. I was taking pics in a forest right before twilight. Help!

The reason is because you are photographing directly into the radius of the sun.

A lense hood is mainly used to keep from color hazes over your photos (caused by a strong intencity of a certain color surrounding your subject)

Pphotograph at a lower angle or away from the sun altogether to get rid of flares. A lense hood will only help about 5% in getting rid of the flares as they still create an unatural horizon (such as the end of your lense) and will still create a flare.

Make the shutter speed faster

You can buy an attachment to the lens. You screw it on or slide it on to the front. Your zoom lens should have come with such an attachment.

If you're using adaptor lenses then make sure you have the additional lens screwed on tight, and you may want to try putting saran wrap over the first lens.

Or my favorite way, make an extension for your lens' frame. Such as a soda bottle with top and bottom cut off, then cover it in tape. Depending on the length of the extension you'll have a smaller picture, but it can create a nice effect, and there's always cropping.

Those are two, very unprofessional ways that've worked for me in the past. Just make sure the saran wrap is tight with no wrinkles and the extension isn't letting light through it's walls.

Or just use your imagination.

Wrap some dark paper around the lens to make a sun shade. If the lens is 3 or 4 inches back from the end of the paper tube, you won't have a problem. You can buy a lens shade, too, but this works just as well.

get a lens hood for the end of the lens and this should eliminate the problem

get (or make) a lens shade - a french flag is very versatile - or shoot with the sun to the side not behind the subject.

A lens hood is the way to go. Most photography stores have them and they aren't too expenisve either. If you can't get one you can be ghetto and make one of you can always just use your hand on the side of your lens to block the sun if it is coming from the side. Just make sure you don't get in front of the lens of course.

You should use a lens hood or a Compendium (Bellows in front of the lens) and your problems will vanished.