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DPChallenge Forums >> Hardware and Software >> what good does a lens do anyway?
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02/05/2007 03:24:06 PM · #1
remember, i'm pretty new to the pro photo world, so i don't know a lot of terms. i'll go on a forum and be confused like noneother over camera details. anyways, yeah, i'm not sure what good a lens will do, if i need one, or if my camera can even take one. please help, and thank you.
02/05/2007 03:29:59 PM · #2
your camera won't take a lens in the sense of a fully functional, interchangeable lens. Your camera may, however, have 'add on' lenses, like a 1.6x magnifier or something like that.
02/05/2007 03:30:09 PM · #3
in short, no your camera can't take a different lens.

when people talk about a good lens in the forums they are speaking of dslr camera where you can change the lens on the body. different lenses give differnt effects. a zoom lens allows you to "zoom" into your subject, a fisheye lens gives you crazy looking effects. the numbers on the lens show how much zoom that lens has. like a 50mm f2.8 lens is a lens that doesn't zoom but stays at 50mm length at all times. the f2.8 is talking about the aperture of the lens, the bigger the number the smaller the physical opening. the aperture is used in controling the depth of feild, that is how much depth of an image is in focus. for landscapes a big number is good, more depth of field, for portraits a small number is good, we want the background to be blurry b/c it's about the subject.
02/05/2007 03:32:18 PM · #4
As mulder and gi_joe have both said, your camera cannot take a different lens entirely. You may, however, be able to have add-on lenses to add to the existing one. For an example, and to quote from an old thread, this pretty much shows the difference between a "good" lens and a relatively bad one:

Originally posted by postoakinversion:

Is it worth the $600+ to upgrade from the 18-55mm kit lens to the 17-40 4L? My 17-40 4L arrived today, so I thought I'd post a comparison between the two lenses in case anyone else is going through that dilema.



The improvement in image quality (color, contrast, sharpness, CA) is definitely worth it to me, not to mention the huge improvement in build quality, weather resistance, and focusing. Whether it's worth it to you I don't know, but I hope this comparison will help.


Hope that helps.

Edit to add: Came from this thread.

Message edited by author 2007-02-05 15:32:51.
02/05/2007 03:34:24 PM · #5
You can't change the lens on your camera but you probably can fit one over it. The point to do this is if you'd like your camera to reach farther (teleconverter) or to be able to shoot a wide group or a big landscape but you can go back enough (wide angle adapter) or you would like to shoot super macro (macro filter). The difference between a good one and a bad one of these lens is image quality. You can't imagine until you see for yourself the amazing difference there is in your image when using High quality expensive glass versus low quality ultra cheap one.

When you are using a DSLR with interchangeable lens the difference maybe even more important because it affects more aspect of your image, like the amount of light that goes through the lens, distortion, sharpness, color, aberration, and more and more....
02/05/2007 03:38:21 PM · #6
Here is a link for you:

Kodak Cameras Accessories

Yeah, you can have a wide angle or telephoto lens but please don't go with anyone but the one they have recommended... you can pick one of them up on AMAZON at a fairly good price so DON'T pay what they ask for it on the Kodak site :)

I haven't gotten one yet but here are some reviews written by users:

Wide Angle

Telephoto

You will find that if you use a different brand, your camera won't like it... hope this is what you were looking for!

Jojo

ETA: You guys are too fast for me LOL they are right, it screws on the front!! Forgot to mention that... DON'T FORGET YOUR COUPLING RING!!!

Message edited by author 2007-02-05 15:39:38.
02/05/2007 03:53:19 PM · #7
thanks everybody, i knew some of the aperature stuff from a tut on here about night pics, but this has all been a pretty big help. i'll look into some different lenses, and maybe even a higher quality camera that has a larger lens variety.
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