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e-510 Miiror lock
1. Can anyone explain the Mirror Lock (anti shake) on the Oly E-510.2. Mirror lock vs Self timer3. Mirror lock timer4. Thanks5. Merry ChristmasEnd of RantTim..

Comments (5)

BigScooter wrote:.

1. Can anyone explain the Mirror Lock (anti shake) on the Oly E-510..

When you release the shutter to take an exposure, the mirror swings up and allows the entering light to hit the sensor. The swinging motion of the internal mirror causes the entire camera to shake, but often this shake is absorbed by your hand. If the camera is on a tripod, the swinging mirror can cause the entire tripod to move, and in an image with a longer(ish) exposure, you can have camera shake evident even though the camera is mounted on a tripod..

The mirror lock up (anti-shake), tells the camera to wait X amount of seconds after the mirror swings up before the shutter curtain opens, allowing any camera shake to return to an equilibrium of no movement. Typically 2-4 seconds is plenty, but it also depends on how sturdy your tripod and/or head is..

2. Mirror lock vs Self timer.

Both tell the camera to wait X amount of seconds, but the self timer tells the camera to wait X seconds before starting the entire exposure process. So it waits X seconds, then the mirror swings and shutter curtain open/closes. You'll still get camera shake if using the self timer..

IMO there's no need for self timer, except for (sometimes) a blinking light that indicates when the picture will be taken..

3. Mirror lock timer.

I don't believe this is an actual separate function, it is just the number of seconds where the mirror lock function is activated..

4. Thanks5. Merry ChristmasEnd of RantTim.

Tim'Be the change you wish to see in the world.' -Mahatma Gandhihttp://www.flickr.com/photos/timskis6/..

Comment #1

So if your using the Mirror lock at 3 seconds you may have to compensate with a slightly longer exposure. I am tring to ask if you lose light in that 3 seconds..

Never mind I got it, my head wasn't on straight for a minute there. Why don't they just make it an on/off instead of timed.End of RantTim..

Comment #2

BigScooter wrote:.

Never mind I got it, my head wasn't on straight for a minute there.Why don't they just make it an on/off instead of timed..

Probably because different people have different ideas about how long the period should be before the shutter is actuated. I've never seen that it makes much difference after about 1 second. However if the camera was suspended from bungee cords then maybe you'd want to wait longer";^).

End of RantTim.

A member of the rabble in good standing..

Comment #3

BigScooter wrote:.

So if your using the Mirror lock at 3 seconds you may have tocompensate with a slightly longer exposure. I am tring to ask if youlose light in that 3 seconds..

No, the mirror locks up, but the shutter is still covering the sensor. After the vibrations die down, the shutter opens for the correct exposure. You need that delay between the mirror flipping up and the shutter opening..

Mirror flip shake is most noticeable between 1/15  1 second (but varies with camera models). Shorter exposures arent much affected by the shake, and with longer shutter speeds the mirror shake forms such a small component of the total exposure to make no difference to the final image. If you are making exposures of a few seconds duration, there is little need for mirror lock..

Never mind I got it, my head wasn't on straight for a minute there.Why don't they just make it an on/off instead of timed..

The timer solution is the most logical..

Brian A...

Comment #4

BigScooter wrote:.

So if your using the Mirror lock at 3 seconds you may have tocompensate with a slightly longer exposure. I am tring to ask if youlose light in that 3 seconds..

No you don't, but I'm guessing you figured this out as per the statement below..

Never mind I got it, my head wasn't on straight for a minute there.Why don't they just make it an on/off instead of timed..

A timer is essential based on the focal length of the lense. Mirror lock up of one second is fine for a short tele lense (100mm for example), but isn't sufficient for a 1000mm or longer lense. If you use a camera with LiveView and 10X magnification, you can easily see what I'm talking about. You can see the image shaking on the LCD at 10X magnification when the mirror swings up, and you can see exactly how long it takes before the image is steadied..

End of RantTim.

Tim'Be the change you wish to see in the world.' -Mahatma Gandhihttp://www.flickr.com/photos/timskis6/..

Comment #5

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