50mm "Normal" Lens... Ok, but "Normal" on FF or APS-C Sensor?

Started Nov 10, 2012 | Discussions thread
Sdaniella
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for me a "Normal" lens (regardless of mm/fov/aov/sensor size)... is same 'size' view as 'no lens'
In reply to REShultz, Nov 11, 2012

for me a "Normal" lens (regardless of mm/fov/aov/sensor size)... is same 'size' view as 'no lens'

by 'no lens', i mean, 'no camera'... if i were to use a 50mm on a camera, and look through its OVF, and see an IDENTICAL 'size' (magnification of 1x) look compared to my bare eye with no camera in front of other eye... then i would see it as like 'no lens' at all.

it just happens that 50mm turned out to be closer to the 'no lens' look for FF (36x24mm frame)

given i have no experience with various sized sensors smaller than FF, like APS-C/APS-H/43d dcameras with OVFs, nor their lenses, i never found out which focal lengths had the same effect.

so... folks, which lenses for APS-C have that 'no lens' look... (just compare OVF vs your eye, when looking at a scene... they should look identical if 'normal'..., otherwise, why bother calling them 'normal' at all, if the OVF view is magnified or reduced????)

does a 50/1.0 = 50.00mm lens look like 'no lens' on an FF (1.0x)?

does a 50/1.3 = 38.46mm lens look like 'no lens' on an APS-H (1.3x)?

does a 50/1.5 = 33.33mm lens look like 'no lens' on an APS-C (1.5x)?

does a 50/1.6 = 31.25mm lens look like 'no lens' on an APS-C (1.6x)?

does a 50/2.0 = 25.0mm lens look like 'no lens' on an 43d/m43 (2.0x)? [if it has an OVF]

of course, if there is no OVF (TTL mirrored view), and one only has an EVF/LCD, the view never looks the same because an EVF has diverse magnification/cropping view involved.

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