Are DX lenses printed with the equivalent or actual focal lengths?

Started Dec 10, 2010 | Discussions thread
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nathanleebush
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Are DX lenses printed with the equivalent or actual focal lengths?
Dec 10, 2010

So I had a D90 before and used the kit lens, which I'm pretty sure was a DX lens. It was an 18-105mm. I found that I used it at 24mm almost all the time.

Now I shoot mostly with a D7000 and use both DX and FX lenses. My question is: do the DX lenses have the equivalent focal length printed on them, or the actual length? Someone told me the DX lenses do the math for you.

So in other words, if I put a regular Nikon full-frame lens on a crop-sensor body and use it at 24mm, is that the exact same field of view/image as a DX lens set to 24mm?
Hope that's clear.

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