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<blockquote data-quote="goz63" data-source="post: 22822" data-attributes="member: 1557"><p>The AF-S is an auto focus lens. The "G" indicates that is has a focus motor in the lens. "D" Can auto focus if you have a focus motor in the camera. The D7000 has this. Your D3100 does not. So you need to stay with "G" lenses to auto focus. </p><p>Wide angle generally indicates a lens that goes wider than 35mm in a full frame (FX) camera. You have a DX format camera. For Nikon that means the lens focal lengths are multiplied by 1.5. So your 18-55 functions like a 27-82mm. That means your zoom can go to a wide angle focal length. I don't see if you have a VR lens. VR stands for vibration reduction. That helps you hold the camera steady with clear pictures at slower shutter speeds. It is not critical on either of those lenses ( the 35mm is not a VR, doesn't come that way). </p><p>This site is a good place to get information. Let us know what you are intending to do with your photography and we can then better help you with some details.</p></blockquote><p></p>
[QUOTE="goz63, post: 22822, member: 1557"] The AF-S is an auto focus lens. The "G" indicates that is has a focus motor in the lens. "D" Can auto focus if you have a focus motor in the camera. The D7000 has this. Your D3100 does not. So you need to stay with "G" lenses to auto focus. Wide angle generally indicates a lens that goes wider than 35mm in a full frame (FX) camera. You have a DX format camera. For Nikon that means the lens focal lengths are multiplied by 1.5. So your 18-55 functions like a 27-82mm. That means your zoom can go to a wide angle focal length. I don't see if you have a VR lens. VR stands for vibration reduction. That helps you hold the camera steady with clear pictures at slower shutter speeds. It is not critical on either of those lenses ( the 35mm is not a VR, doesn't come that way). This site is a good place to get information. Let us know what you are intending to do with your photography and we can then better help you with some details. [/QUOTE]
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