| Author | Thread |
|
|
07/20/2004 01:50:20 PM · #1 |
| i have been hearing about it lately? what is a mirror locl-up and what is it for? |
|
|
|
07/20/2004 01:56:15 PM · #2 |
|
|
|
07/20/2004 01:57:40 PM · #3 |
Originally posted by theodor38:
i have been hearing about it lately? what is a mirror locl-up and what is it for? |
When the mirror on a reflex flips up so that the shutter can open, it causes the camera to vibrate some amount. In some cases, this is noticable in the final image. By locking up the mirror, the mirror is flipped up well before the shutter opening so that the vibrations have disiipated by the time the exposre actually happens.
I believe that the D70 has an advanced mirror vibration damping system that makes mirror lockup unnecessary.
|
|
|
|
07/20/2004 02:51:45 PM · #4 |
If the D70 has a mirror wibration damping system then this you should probably dont have to worry about this theodor.
But for us 300D owners the mirror lock-up setting in the russian harware (discussed in details in other threads) can make a lot of differance in long exposure shots. I expecially like the settings of mirror lock-up delais. Makes you less dependent on remote controle but dont have to wait for 10 sec in each shot. |
|
|
|
07/21/2004 03:03:27 PM · #5 |
| great thanks to all the responses... |
|
|
|
07/21/2004 03:07:24 PM · #6 |
u can always use the black hat technique to simulate the mirror lockup on long nighttime exposure shots, just set the shutter for 2 extra seconds or so, hold a black hat infront of the lens not letting any light in for those 2 seconds which should be enough time for vibrations to stop from the mirror, remove the hat quickly, and you should have a vibration free photo
Message edited by author 2004-07-21 15:11:16. |
|
|
|
07/21/2004 03:12:29 PM · #7 |
Originally posted by longlivenyhc:
u can always use the black hat technique to simulate the mirror lockup on long exposure shots, just set the shutter for 2 extra seconds or so, hold a black hat infront of the lens not letting any light in for those 2 seconds which should be enough time for vibrations to stop from the mirror, remove the hat quickly, and you should have a vibration free photo |
Thats true but then I think that you can just as well make your own camera from what you find in your garage.
Think I stick with the new firmware for now. |
|
|
|
07/21/2004 03:14:45 PM · #8 |
Really only matters for tripod shots with longish focal lengths and shutter speeds in the 1/45s to 1/2s or so. Anything faster and the vibration doesn't seem to be an issue and anything slower it isn't an issue either. It is simple to take some shots and look at the results and see when/ if mirror slap is a problem for you - then just use MLU in those cases to reduce the vibration.
Ideally, you want a remote control/ cable release. This means you aren't touching the camera when using mirror lock up (and thus not adding back in any vibration) You can use a timer instead of a cable release, but I find that an excellent way to miss the shot that I want to take - the remote release is far superior.
|
|
|
|
07/21/2004 03:15:38 PM · #9 |
Originally posted by garlic:
Thats true but then I think that you can just as well make your own camera from what you find in your garage.
Think I stick with the new firmware for now. |
just offering an option to people who dont have a 300D, or to people who do have the 300D and dont want to void their warranty or just dont want to use the hacked firmware |
|
|
|
07/21/2004 03:16:08 PM · #10 |
And if you get the RC-1 for your Canon (Infrared Remote), you'll never think twice about dragging out your remote for a perfect shot.
|
|
|
|
07/21/2004 03:27:20 PM · #11 |
Originally posted by longlivenyhc:
u can always use the black hat technique to simulate the mirror lockup on long nighttime exposure shots, just set the shutter for 2 extra seconds or so, hold a black hat infront of the lens not letting any light in for those 2 seconds which should be enough time for vibrations to stop from the mirror, remove the hat quickly, and you should have a vibration free photo |
That technique is great for shooting fireworks too, particularly if your camera's bulb mode is stupid and requires you to keep a finger on it (if you don't have a good remote)
|
|
|
|
07/23/2004 09:11:29 AM · #12 |
Originally posted by longlivenyhc:
Originally posted by garlic:
Thats true but then I think that you can just as well make your own camera from what you find in your garage.
Think I stick with the new firmware for now. |
just offering an option to people who dont have a 300D, or to people who do have the 300D and dont want to void their warranty or just dont want to use the hacked firmware |
I know and thx for that. Just a joke from me. |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 08/05/2025 05:02:02 PM EDT.
