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Old Apr 24, 2003, 7:49 AM   #1
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Default About lens

I know that is a kind of stupid question, but I don't have any expirence taking photos... ops:
I'd like to know if I can use lens in cameras like Canon A200...
It's just put the lens in front of the camera and take the pic? Or I need a cam with an especial place to put the lens and than take the pics?

Thanks in advance.
Sorry for my horrible english....
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Old Apr 24, 2003, 11:42 PM   #2
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Default Re: About lens

Quote:
Originally Posted by Bruno Fontes
I'd like to know if I can use lens in cameras like Canon A200... It's just put the lens in front of the camera and take the pic? Or I need a cam with an especial place to put the lens and than take the pics?
If the lens is designed to be screwed on the front part of a digital camera or camcorder, then in theory you can use it. In fact, you can even use a telescope or a binocular. If a lens is designed to be mounted on a camera body, then you cannot use it on your digital camera.

Here is why. If a lens is designed to be mounted on a camera body, it focuses an image on the film or image sensor. In other words, it can FOCUS! If a lens is designed to be screwed on the front of a lens like many wide- and tele- converters do, this lens DOES NOT focus. Instead, it sends parallel incoming rays to parallel exiting rays. Therefore, its use is to project a (fake) image onto the camera lens.

Since you did not mention what lens you are referring to, I cannot answer your question completely and accurately. But, hope the above useful. Take a look at the "Wide and Tele Converter ..." page of my Nikon Coolpix 2500 user guide for some details. The 950/990/995/4500 user guide has a "Converter Lens" section, too.

CK
http://www.cs.mtu.edu/~shene/DigiCam
Nikon Coolpix 950/990/995/2500/4500 user guide
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Old Apr 27, 2003, 12:04 PM   #3
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Hi Shene,

Thanx for the information!



A big hug!
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