Is there an advantage to the 1" sensor? Opinions requested.

Started Dec 12, 2012 | Discussions thread
ProfHankD Veteran Member • Posts: 5,476
What is the resolution of your lenses? Need AF? You need an EVF.

Jerry R wrote:

The Nikon V1 would produce the same image as the cropped 4 meg but would be 10 megs.

Yes and no. The Nikon 1 line 1" sensors are a lot smaller than APS-C, but that isn't relevant -- it's just a matter of sensel size. Here's a little list of sensel sizes and approximate lens resolutions needed for Nyquist sampling:

  • Sony NEX-5 (14MP) : 5um, 50 line pairs per mm
  • Sony NEX-6 (16MP): 4.8um, 52 lppmm
  • Sony NEX-7 (24MP): 3.9um, 64 lppmm
  • Nikon 1 V1 (10MP): 3.4um, 74 lppmm
  • Nikon 1 V2 (14MP): 2.9um, 87 lppmm

Very few lenses designed for full-frame 35mm resolve even 50lppmm at decent contrast across the entire (cropped) frame even at their best aperture. This doesn't mean IQ isn't slightly better with more pixels sampling, but it does mean the difference between IQ of crops giving the same angle of view will not be anywhere near as big as the pixel counts alone suggest. Most lenses are pretty much mush at smaller than the NEX-7 sensel size....

Thinking of getting the V1 ($300 with 10-30mm lens and $200 for an adaptor for Nikon lenses that supports AF & AE).

Do you think this is a sensible alternative to the NEX C3 with an adaptor for Nikon lenses and cropping?

Do you need autofocus on Nikon F-mount lenses?

Personally, I think an EVF is critical for longer lenses so you can brace the camera against your face. Thus, the cheapest NEX option is the NEX-6. If you don't mind more bulk, the C3 with a rigid magnifying hood (the "V4" is less than $20 on eBay) will do nearly as well as if it had an EVF -- and then you get a HUGE EVF with mediocre resolution.

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