infinity, what it is and how do you do it?

[Rachelsne]

I am shooting fireworks -well attemting to at the airshow tonight and I read that I shoul focus to infinity-what does that mean and how do i do it?

Thanks as always

Oh and im attempting the long exposure card idea

 

[manaheim]

Well, I know you want a very small aperature size... ideally smallest possible... for the greatest depth of field. What I don't know is if that is necessarily considered "infinity"... I've kind of wondered that one myself.

You know, maybe I should just shut up and wait for Helen to answer. lol

 

[Josh66]

Does your lens have a distance scale on it? If it does there will be a mark (it's shaped like a "L" on Canon) that will tell you where infinity is. If you don't have a distance scale you could just turn the focus ring all the way out (counter-clockwise looking from behind the camera on Canon - not sure if that's universal or not), but that might actually be a little past infinity.

 

[Josh66]

Look here to see what I'm talking about:
http://upload.wikimedia.org/wikiped...le.jpg/120px-Canon_EF_lens_distance_scale.jpg

 

[Tiberius47]

The infinite mark is generally shaped like an "8" that has fallen over. Infinity means that the object that youa re focussing on is a very long way from the camera.

 

[Rachelsne]

ok thank its a canon lens so all should be good-I hope!

 

[Josh66]

If it does have the distance scale on it just line up the mark under the window with the vertical part of the "L" and you will be at infinity.

 

[kundalini]

The latest way to [video=youtube;yt_YGpxbogQ]http://youtube.com/watch?v=yt_YGpxbogQ"]infinity[/video].

 

[Rachelsne]

I ended up not using iNfinity-but atleast I know how to do it

thanks hopefiully ill post the pics soon

 

[Crosby]

but that might actually be a little past infinity.

:stun: past infinity :shock: