View Full Version : shutter actuations before burnout
salvo
05-21-2009, 10:57 AM
Hi all,
The thought suddenly occurred to me that DSLR's have X amount of shutter actuations before it dies. Would HD movie mode accelerate the process?
Martti Ekstrand
05-21-2009, 11:13 AM
Isn't that a problem with mechanical shutters? GH-1 doesn't have one.
upshot
05-21-2009, 12:06 PM
True and untrue.. The G1/GH1 does have a shutter but it's simply open while shooting video. The shutter is for the still mode.
Martti Ekstrand
05-21-2009, 12:24 PM
Oh, my bad. Thought the shutter was only electronic but guess it will not be subjected to much wear out in video mode then.
ydgmdlu
05-21-2009, 01:00 PM
I'd still like to know what the limit is... It'll be useful information for still photographers.
xbourque
05-21-2009, 01:24 PM
True and untrue.. The G1/GH1 does have a shutter but it's simply open while shooting video. The shutter is for the still mode.
How come you see the bare sensor when the lens is removed?
--X
ydgmdlu
05-21-2009, 01:27 PM
How come you see the bare sensor when the lens is removed?
--X
Because there's no mirror box.
Micro Four Thirds is all live view, all the time. Live view requires that nothing get in the way of the light path between the lens and the sensor. The camera only uses the mechanical shutter when necessary.
AdrianF
05-21-2009, 02:24 PM
True and untrue.. The G1/GH1 does have a shutter but it's simply open while shooting video. The shutter is for the still mode.
How long long have you been shooting time-lapse with the G1 for now?:beer: I've never seen any info on shutter actuations for the G1/GH1and was curious as to how long they would last. When the news first came out on the GH1 I was looking for a t/l camera in Four Thirds, and thinking along the lines of using it for t/l and occasional stills/motion. I'm now realising that it will be very usable for filming, but just wondered if a G1 or second GH1 might be an idea for t/l... Sorry, bit O/T.
pix2pixels
05-21-2009, 05:18 PM
I don't get it.
For a camera with permanent 'Live View', why did they have to make a shutter for stills shooting? No other compact digicam has this.
One issue is the noise and the other, the actuations limit, especially if one uses it for time lapse.
GregGory
05-21-2009, 06:37 PM
I don't get it.
For a camera with permanent 'Live View', why did they have to make a shutter for stills shooting? No other compact digicam has this.
One issue is the noise and the other, the actuations limit, especially if one uses it for time lapse.
Actually, quite a few compact cams have mechanical shutters, but on a typical 1/2.33" sensor the size is smaller than a pinhead, so you almost need a magnifier to see it. It's easier to hold it up to your ear and hear it. The reason for the mechanical shutter is better IQ. Somehow, the readout is 'messier' with a fully electronic shutter, the mechanical leaves more time for the readout, that's what I've read at least. Sooner or later, we'll see purely electronic shutters I suppose.
pix2pixels
05-21-2009, 06:58 PM
Correct me if I'm wrong.
For 'Live View' the shutter is open all the time, anyway. Before taking a still, the camera closes the shutter, takes the image and then, the shutter is opened for the viewing again? This is what I gather from this (http://www.luminous-landscape.com/reviews/cameras/panasonic-g1.shtml) review.