Thom's review of the state of Nikon DX is depressingly accurate

Started Mar 3, 2011 | Discussions thread
Lance B
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Re: I don't think we are moving into FX
In reply to GoldRingNikkor, Mar 15, 2011

GoldRingNikkor wrote:

stevepix wrote:

Lance B wrote:

Actually, not always. A 300mm f2.8 lens still needs to be the same size for FX as it is for DX. A wide angle lens is generally actually bigger on DX than FX for the same max aperture.

True, but due to the crop factor you would only need a 200mm lens on DX for a similar image. This will be smaller.

In fact, you'd need a 200/2, which is also quite large...

Of course. I was forgetting about the larger DOF that DX affords, so if you want the same narrow DOF you need to go f2. This is why Olympus's pro zooms are f2 instead of the usual f2.8.

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