"The full frame myth"

Started Dec 19, 2013 | Discussions thread
awaldram Forum Pro • Posts: 13,258
Re: You cannot change the laws of physics...

James O'Neill wrote:

The mirror box on Pentax, Sony , Nikon and Canon cameras is designed for a 36x24mm film frame a sensor filling the back of that mirror box wouldn't make the camera bigger or heavier (although if you want to go from a 200MM f/2.8 to the equivalent 300 f/2.8, the lens will be bigger). The bigger sensor *will* cost more. And the APS-C and smaller sensors can produce very, very good images. The interesting question is where is the sweet spot. The 645D is too big. The sensor in Q is too small. APS-C in film-derived bodies was a quick fix. If APS-C is the sweet spot for sensor size, a smaller body makes sense, if the K3 is the sweet spot for body size an FF sensor makes sense.

But did Pentax leverage the aditional real estate a FF mirror box gives to implent SR ?

If so K3 size may be the sweet spot body size for FF or SR aps-C

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