3120mm effective 1080p? 1dc

[MattH]

However about the nx500, the official Samsung number is actually that the sensor is 30.3mp total count, and 28mp are used, so it's a 1.55x crop over FF, then in UHD it's an additional 1.77x crop to that, so their official number is 2.74x in UHD.

Samsung does state that the total number of pixels is 30.7 million, but that only 28.2 million are used for imaging.  Which is roughly corroborated by the maximum shooting resolution of 6480*4320 = 27993600 pixels.

What we don’t know is whether the effective sensor area (28mp) matches precisely with the standard apsc size of 23.6*15.7mm.   My calculation assumes that it does.

So if we assume the width of the active sensor is 23.6 and the number of pixels in that width is 6480, then the width of each pixel is 0.00364197530864197530864197530864mm.

If we assume that the nx500 uses a 1:1 crop of the sensor when recording quad HD, which as far as I am aware it does.

Given that the horizontal resolution of quad HD is 3840, the active width of the sensor in quad HD mode must necessarily be 3840 times 0.00364197530864197530864197530864, which is 13.985185185185185185185185185185mm.

The width of a full frame sensor is 36mm.
The crop factor of the NX500 in quad HD mode is therefore 36 divided by 13.985185185185185185185185185185, which is 2.5741525423728813559322033898305. 

2.57 is close enough for me.

A 600mm lens would give you the exact field of view as a 1544.5mm lens would give you on a full frame camera in video mode.

 

If the active sensor area of the NX1 is smaller than APSC then god knows, maybe it is 2.74.  Either way its still fucking long if you put a 600mm on it.