the human eye can be compared to the lens of a cam....if so..
what would be the "specs" for the eye ?
f/? to f/?
cont. AF ?
matrix metering?
what would be the "specs" for the eye ?
f/? to f/?
cont. AF ?
matrix metering?
the human eye
- Thread starter acetylcholine
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blurblock said:
spot meter ?
erm
if someone is standing in front of a bright background i cant see a thing man
a sill at best..
i think center meter at best ??
as for AF, god-speed. USM ? pui ( no insult to canon users) more keng than USM
but how do u explain some ppl short sighted,long sighted, etc?
'lens' quality no good ? ahahhaha
acetylcholine said:spot meter ?
erm
if someone is standing in front of a bright background i cant see a thing man
a sill at best..
i think center meter at best ??
as for AF, god-speed. USM ? pui ( no insult to canon users) more keng than USM
but how do u explain some ppl short sighted,long sighted, etc?
'lens' quality no good ? ahahhaha
That because someone forgot the extension tube inside the eyes. :blah:
thats for short sighted
They only got have a pair of teles for cannot focus on near object.
Long sighted
acetylcholine said:
i would say the world's best lens u ever get
just one lens to let u see near, nearer or nearest and far, further or furthest
specifications for the eye:
focal length: 50mm
aperture: f1 to f8
close focussing distance: 150mm
instantaneous continuous autofocus
automatic exposure compensation
resolving power: 8lp/mm
no chromatic aberrations
no distortion
automatic tilt-shift for perspective control
uniform centre to edge sharpness
built-in image stabiliser and lens cleaner
matrix metering
can meter in low light conditions down to EV 2
size: 25mm diameter
weight: 40g
price: free
focal length: 50mm
aperture: f1 to f8
close focussing distance: 150mm
instantaneous continuous autofocus
automatic exposure compensation
resolving power: 8lp/mm
no chromatic aberrations
no distortion
automatic tilt-shift for perspective control
uniform centre to edge sharpness
built-in image stabiliser and lens cleaner
matrix metering
can meter in low light conditions down to EV 2
size: 25mm diameter
weight: 40g
price: free
Also no flare problem
always in shuttle priority mode (bulb)???
with pupil of eye (apperture) changing size frequently to fit the ambience light.. in dark room, pupil become big, in bright light pupil become small...
it does not come with macro capability... need to use microsope or manifying glass add on...
can use all brand of telescope / bino for tele-zoom
price? priceless...
always in shuttle priority mode (bulb)???
with pupil of eye (apperture) changing size frequently to fit the ambience light.. in dark room, pupil become big, in bright light pupil become small...
it does not come with macro capability... need to use microsope or manifying glass add on...
can use all brand of telescope / bino for tele-zoom
price? priceless...
The eye is also a 'film'/'sensor'. Possibly ISO 50 to 12800+++. We see at about 1/50 shutter speed (That's our PAL TV refresh rate) and we have no problem seeing in moon lit lanscape. Our cameras on highest ISO film at largest aperture probably needs a few seconds of exposure to get what our eyes sees. But we are not infra and ultra sensitive, unlike some film and some sensor.
I beleive that the eye is not spot, centre, average or matrix metering. It can actually meter differently and expose differently for different locations on the sensor! Image auto ISO on each pixel, and yet still coming with sensible images!
Hmmm... thinking about the eye as a lens, then some of the stuff we've mentioned (e.g. metering, shutter speed) actually falls under the camera body's functions... which would be equivalent to our brains!
ok...
compiling the specs
Eye
Aperture: anywhere from f/1 to f16
Cont AF
Matrix or centre metering
ISO: 50 to 12800
Range: 50mm to infinity
Resolving power: 4 micrometers
automatic exposure compensation
size: 25mm diameter
weight: 40g
price: free
no chromatic aberrations
no distortion
automatic tilt-shift for perspective control
uniform centre to edge sharpness
built-in image stabiliser, lens cleaner and lens hood.
auto repair systems
twin lenses for 3D imaging
compiling the specs
Eye
Aperture: anywhere from f/1 to f16
Cont AF
Matrix or centre metering
ISO: 50 to 12800
Range: 50mm to infinity
Resolving power: 4 micrometers
automatic exposure compensation
size: 25mm diameter
weight: 40g
price: free
no chromatic aberrations
no distortion
automatic tilt-shift for perspective control
uniform centre to edge sharpness
built-in image stabiliser, lens cleaner and lens hood.
auto repair systems
twin lenses for 3D imaging
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