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K750 autofocus - does it really contain mechanical parts? |
thaei1342
Joined: Feb 12, 2005
Posts: 21
From: Mars
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Knowing that the k750i has autofocus, and knowing that autofocus requires a non-static lens, does it mean that the k750 really have a mechanical part that adjusts the lens' position?
To anyone who has opened their k750, is this the case?
Currently, i am not aware of any electronic method for accomplishing autofocus. |
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hampe
Joined: Feb 23, 2002
Posts: 152
From: Sweden
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It sounds like somthing is happening in the phone (some mechanic sound(not from the loudspeaker)) and you can feel a slight vibration when it focus so yes i really think the lens moves inside the phone. |
roopi
Joined: May 30, 2002
Posts: 55
From: b'ham uk
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yes the lense actually moves. cool eh! |
thaei1342
Joined: Feb 12, 2005
Posts: 21
From: Mars
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real mechanical autofocus!
thats great! se must have really made a miniature lens mechanism given that the phone is not really that thick.
btw, autofocus means that the phone emits something that gauges the distance between the camera and the target, have you guys noticed something like an IR emitter that is located near the lens?
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upper
Joined: Apr 17, 2004
Posts: > 500
From: London UK
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[quote]
On 2005-06-18 02:46:24, thaei1342 wrote:
real mechanical autofocus!
thats great! se must have really made a miniature lens mechanism given that the phone is not really that thick.
btw, autofocus means that the phone emits something that gauges the distance between the camera and the target, have you guys noticed something like an IR emitter that is located near the lens?
[/quote/]
maybe Sony is behind the make of the miniature lens mechanism, and ericsson sits on its behind all day and smoke cigars  |
thaei1342
Joined: Feb 12, 2005
Posts: 21
From: Mars
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that may be true. however i dont recall sony having a cybershot with this small form factor. the camera module of this phone is a lot smaller than those of dedicated digicam. |
Grimslade
Joined: Jul 25, 2004
Posts: 464
From: London
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Autofocus does not require something emitted to guage distance. In fact, most autofocus systems use "contrast" detection rather than distance detection--they vary the length of focus to maximize the contrast between light and dark areas inside the focus area, the theory being that, the sharper the transition, the better the focus. So, if you're ever having trouble getting your autofocus to lock on, point the middle of the viewfinder at an "edge"--the side of someone's head, or their harline, or the edge of a building (if you're photographing the building), lock on focus with a half-press, and then recompose your shot and finish pressing the shutter button.
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four
Joined: Jul 13, 2004
Posts: 96
From: London - the one in England (i
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If you use the macro mode and focus - you can really hear the lens move.
Wie komme ich am besten zum Bahnhof? |
Vipera ammodytes
Joined: Sep 22, 2004
Posts: > 500
From: Serbia
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yes k750 have mechanical parts!!!
you can hear and watch autofocus on display!
OnePlus 8 |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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That's so freakin' cool! |
thaei1342
Joined: Feb 12, 2005
Posts: 21
From: Mars
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Hearing about this makes me want to sell my k700 and buy a 750. Too bad i still am not able to find one here.
btw, Does mechanical lens mechanism means that dropping a k750 would most probably destroy its autofocus mechanism? of course it still depends on the type and location of impact. This phone might be more fragile than any other "normal" camera phone out there. |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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I reckon it'd be pretty resilient. the lense mech will be lightweight, so won't need a hyper-strong frame to contain it sturdily.
If it's properly designed, there is no reason it should be a problem. |
Trentors
Joined: Jul 16, 2004
Posts: 88
From: Denmark
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Calling it mechanic is not entirely correct. Sure the lenses move within the small container that contains both the lens and the liquid. But there ARE no motors or other mechanical units. The lens move according to the voltage supplied. |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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it's electro mechanical. But that's gonna be much more reliable than a servo. |
empty
Joined: Nov 24, 2002
Posts: 109
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How load is the clicking/mechanical sound your lens makes when focusing? Mine seems quite loud for such a small component. I'm just worried there might be a problem.
[ This Message was edited by: empty on 2005-07-28 16:59 ] |
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Posted: 2005-06-18 01:28
