will frequent use of mirror lockup shorten lifespan of mirror mechanism?

ns writes:

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

I don't believe mirror lock-up has any effect on wear and tear, as the
movements of the mirror and other parts are pretty much the same either
way.

--
Transpose hotmail and mxsmanic in my e-mail address to reach me directly.

ns writes:

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

I don't believe mirror lock-up has any effect on wear and tear, as the
movements of the mirror and other parts are pretty much the same either
way.

--
Transpose hotmail and mxsmanic in my e-mail address to reach me directly.

First off - I'm not sure the Rebel is capable of mirror lock. Secondly, a
two second delay means you are going to miss an awful lot of shots and
mis-frame a lot of others. Mirror lock is only useful for landscapes and
still lifes.
As to the mirror mechanism - I don't see how it could harm that, but
really don't know, and doubt anyone who doesn't repair cameras would be any
better informed.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
Hi, I plan to use 2 seconds mirror lockup for every shot (canon
digital rebel), besides getting the benefit of mirror lockup, also as
a 2 sec timer so I don't have to buy a remote control.

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

thanks a lot.

"Alan Browne" wrote in message
...
2 seconds is a bit short as a delay timer. 10 seconds is typical
(if a bit too long in most cases).

Cheers,
Alan

Two seconds works fine for the Road Runner.....He can get a shot of himself
standing next to the Coyote with over a second to spare.........

thanks all that have replied, yes digital rebel doesn't have MLU built
in (officially), but with russian hacked firmware it can MLU and works
really well. that's part of the reason that I am a bit worried maybe
the hardware is not designed to withstand that kind of MLU use. I
agree tear and wear probably the same, but with the spring constantly
being stretched 2 seconds at a time, I just hope it won't get soft or
break or something... and there are lots of rebels failed, strangely
all failed at the mirror mechanism (although most likely not MLU
related since the hack has been out just for a couple of months, but
mostly due to too many shots, I saw from 19K shots to 64K shots).

yes I mostly shot scenary and still objects, if action I will turn MLU
off.

is there any resource I can find about the mirror mechanism/parts?


"Tony Spadaro" wrote in message r.com...
First off - I'm not sure the Rebel is capable of mirror lock. Secondly, a
two second delay means you are going to miss an awful lot of shots and
mis-frame a lot of others. Mirror lock is only useful for landscapes and
still lifes.
As to the mirror mechanism - I don't see how it could harm that, but
really don't know, and doubt anyone who doesn't repair cameras would be any
better informed.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
Hi, I plan to use 2 seconds mirror lockup for every shot (canon
digital rebel), besides getting the benefit of mirror lockup, also as
a 2 sec timer so I don't have to buy a remote control.

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

thanks a lot.

thanks all that have replied, yes digital rebel doesn't have MLU built
in (officially), but with russian hacked firmware it can MLU and works
really well. that's part of the reason that I am a bit worried maybe
the hardware is not designed to withstand that kind of MLU use. I
agree tear and wear probably the same, but with the spring constantly
being stretched 2 seconds at a time, I just hope it won't get soft or
break or something... and there are lots of rebels failed, strangely
all failed at the mirror mechanism (although most likely not MLU
related since the hack has been out just for a couple of months, but
mostly due to too many shots, I saw from 19K shots to 64K shots).

yes I mostly shot scenary and still objects, if action I will turn MLU
off.

is there any resource I can find about the mirror mechanism/parts?


"Tony Spadaro" wrote in message r.com...
First off - I'm not sure the Rebel is capable of mirror lock. Secondly, a
two second delay means you are going to miss an awful lot of shots and
mis-frame a lot of others. Mirror lock is only useful for landscapes and
still lifes.
As to the mirror mechanism - I don't see how it could harm that, but
really don't know, and doubt anyone who doesn't repair cameras would be any
better informed.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
Hi, I plan to use 2 seconds mirror lockup for every shot (canon
digital rebel), besides getting the benefit of mirror lockup, also as
a 2 sec timer so I don't have to buy a remote control.

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

thanks a lot.

Remember that you only gain from using MLU in exposures that are in the
1/10th to 1/25th second range with normal lenses (say 28-105 range) The
longer the lens the more you need the MLU. I would leave it off most of the
time. As to using hackware -- I would rather buy a more expensive body once
than two cheaper ones. You know the guarantee will go right out the window
the second you alter the camera.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
thanks all that have replied, yes digital rebel doesn't have MLU built
in (officially), but with russian hacked firmware it can MLU and works
really well. that's part of the reason that I am a bit worried maybe
the hardware is not designed to withstand that kind of MLU use. I
agree tear and wear probably the same, but with the spring constantly
being stretched 2 seconds at a time, I just hope it won't get soft or
break or something... and there are lots of rebels failed, strangely
all failed at the mirror mechanism (although most likely not MLU
related since the hack has been out just for a couple of months, but
mostly due to too many shots, I saw from 19K shots to 64K shots).

yes I mostly shot scenary and still objects, if action I will turn MLU
off.

is there any resource I can find about the mirror mechanism/parts?


"Tony Spadaro" wrote in message
r.com...
First off - I'm not sure the Rebel is capable of mirror lock. Secondly,
a
two second delay means you are going to miss an awful lot of shots and
mis-frame a lot of others. Mirror lock is only useful for landscapes and
still lifes.
As to the mirror mechanism - I don't see how it could harm that, but
really don't know, and doubt anyone who doesn't repair cameras would be
any
better informed.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
Hi, I plan to use 2 seconds mirror lockup for every shot (canon
digital rebel), besides getting the benefit of mirror lockup, also as
a 2 sec timer so I don't have to buy a remote control.

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

thanks a lot.

Remember that you only gain from using MLU in exposures that are in the
1/10th to 1/25th second range with normal lenses (say 28-105 range) The
longer the lens the more you need the MLU. I would leave it off most of the
time. As to using hackware -- I would rather buy a more expensive body once
than two cheaper ones. You know the guarantee will go right out the window
the second you alter the camera.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
thanks all that have replied, yes digital rebel doesn't have MLU built
in (officially), but with russian hacked firmware it can MLU and works
really well. that's part of the reason that I am a bit worried maybe
the hardware is not designed to withstand that kind of MLU use. I
agree tear and wear probably the same, but with the spring constantly
being stretched 2 seconds at a time, I just hope it won't get soft or
break or something... and there are lots of rebels failed, strangely
all failed at the mirror mechanism (although most likely not MLU
related since the hack has been out just for a couple of months, but
mostly due to too many shots, I saw from 19K shots to 64K shots).

yes I mostly shot scenary and still objects, if action I will turn MLU
off.

is there any resource I can find about the mirror mechanism/parts?


"Tony Spadaro" wrote in message
r.com...
First off - I'm not sure the Rebel is capable of mirror lock. Secondly,
a
two second delay means you are going to miss an awful lot of shots and
mis-frame a lot of others. Mirror lock is only useful for landscapes and
still lifes.
As to the mirror mechanism - I don't see how it could harm that, but
really don't know, and doubt anyone who doesn't repair cameras would be
any
better informed.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"ns" wrote in message
om...
Hi, I plan to use 2 seconds mirror lockup for every shot (canon
digital rebel), besides getting the benefit of mirror lockup, also as
a 2 sec timer so I don't have to buy a remote control.

my question is, with every shot mirror locked up for 2 seconds, will
that put too much stress on the mirror mechanism (spring etc) so the
lifespan of the related parts be greatly shortened?

thanks a lot.

"Tony Spadaro" wrote in
r.com:

Remember that you only gain from using MLU in exposures that are
in the
1/10th to 1/25th second range with normal lenses (say 28-105 range)
The longer the lens the more you need the MLU.


I'll add a small correction ot Tony's post here, to change "longer
focal lengths" to "higher magnifications". Which then makes it apply both
to long focal lengths *and* macro work, which is where I use MLU most of
the time.

MLU can be of greater use in odder positions, such as vertical
compositions or where the camera is angled significantly, because these put
a much greater load on the tripod and thus can be more susceptible to
influence from shaking. The same goes for using the tripod mount of a long
lens, rather than the camera mount, because then the camera is hanging off
in space to one side of the pivot point, and simple leverage comes into
play.

There is always the laser pointer trick to see exactly what effect
mirror-shake and MLU *does* have on your camera. Strap a laser pointer to
the lens aiming down a moderate length hallway, at least 12' but the longer
the better. Or aim it at a mirror that bounces it to the wall behind the
camera (which may allow closer inspection). Then trip the shutter with MLU
on and off, and with several combinations of lens and positions, to see
what effect it really has. The jiggling red dot will display it nicely.


- Al.

--
To reply, insert dash in address to match domain below
Online photo gallery at www.wading-in.net

True - I didn't mention macro. Thanks Al.

--
http://www.chapelhillnoir.com
home of The Camera-ist's Manifesto
The Improved Links Pages are at
http://www.chapelhillnoir.com/links/mlinks00.html
A sample chapter from my novel "Haight-Ashbury" is at
http://www.chapelhillnoir.com/writ/hait/hatitl.html
"Al Denelsbeck" wrote in message
. 168...
"Tony Spadaro" wrote in
r.com:

Remember that you only gain from using MLU in exposures that are
in the
1/10th to 1/25th second range with normal lenses (say 28-105 range)
The longer the lens the more you need the MLU.


I'll add a small correction ot Tony's post here, to change "longer
focal lengths" to "higher magnifications". Which then makes it apply both
to long focal lengths *and* macro work, which is where I use MLU most of
the time.

MLU can be of greater use in odder positions, such as vertical
compositions or where the camera is angled significantly, because these
put
a much greater load on the tripod and thus can be more susceptible to
influence from shaking. The same goes for using the tripod mount of a long
lens, rather than the camera mount, because then the camera is hanging off
in space to one side of the pivot point, and simple leverage comes into
play.

There is always the laser pointer trick to see exactly what effect
mirror-shake and MLU *does* have on your camera. Strap a laser pointer to
the lens aiming down a moderate length hallway, at least 12' but the
longer
the better. Or aim it at a mirror that bounces it to the wall behind the
camera (which may allow closer inspection). Then trip the shutter with MLU
on and off, and with several combinations of lens and positions, to see
what effect it really has. The jiggling red dot will display it nicely.


- Al.

--
To reply, insert dash in address to match domain below
Online photo gallery at www.wading-in.net