# A question on fast shutter speeds - Photography

If I use a faster shutter speed does this mean that the camera mirror jumps out of the way faster or does the mirror move at the same speed for all shutter speeds? Regards Brian...

1. ## A question on fast shutter speeds

If I use a faster shutter speed does this mean that the camera mirror
jumps out of the way faster or does the mirror move at the same speed
for all shutter speeds?

Regards Brian

Brian Guest

2. ## Re: A question on fast shutter speeds

I am guessing here and from having scanned Gooooooogle with no answers, I
would say just 2 speeds. Those being working at a single speed for all
options or stopped (locked up).

swash

"Brian" <co.nz> wrote in message
news:com...

SwashBuckle Guest

3. ## Re: A question on fast shutter speeds

In article <com>,
Brian <co.nz> wrote:

The mirror swings up at the same speed reagrdless (unless MLU is used of
course). Perhaps surprisingly, the shutter curtains also move at the
same speed across the focal plane, regardless of the shutter speed.
What determines the shutter speed is how quickly the second curtain is
fired after the first.

For example at the X-Sync speed for your camera, the second curtain is
not fired until the first curtain has traveled all the way to the end
(ie. the film frame is fully open to the incoming light). Faster
shutter speeds cause the second curtain to start its travel
progressively closer to when the first curtain started. This creates a
slit whose width is inversely proportional to the shutter speed (the
faster the shutter speed, the narrower the curtain).

--
Rudy Garcia

Rudy Guest

4. ## Re: A question on fast shutter speeds

On Sun, 27 Jul 2003 23:54:08 +1200, Brian <co.nz> wrote:

Each camera has a set speed at which the mirror move upward. So
whatever shutter speed you select, the mirror moves up at the same
speed.

The shutter curtains also move at the same speed regardless of which
shutter speed you use. Shutter speed is determined by the width of the
slit between the first and second curtain.. The faster the shutter
speed, the narrower the slit and wider at slower speeds..

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Colyn Guest

5. ## Re: A question on fast shutter speeds

Brian <co.nz> wrote in message news:<com>...

No, the mirror moves up at the same speed.
Michael Guest

6. ## Re: A question on fast shutter speeds

Maybe a different question: When uing a camera like the F5 at 8 frames per
second, does the mirror actually go up and down 8 times a second?
"Brian" <co.nz> wrote in message
news:com...

Wes Guest

7. ## Re: A question on fast shutter speeds

Brian writes:

The mirror always moves at the same speed on a given camera. The
shutter will not open until the mirror is completely out of the way.

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Mxsmanic Guest

8. ## Re: A question on fast shutter speeds

Wes J writes:

Yes, indeed, it does. The F5 mirror is amazingly fast. If it didn't
move for each and every exposure, you wouldn't be able to see what you
were shooting at 8 fps.

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9. ## Re: A question on fast shutter speeds

also a Rangefinder does not have this .
"Wes J" <net> wrote in message
>
>[/ref]

Bot-tastic Guest

10. ## Re: A question on fast shutter speeds

Jim Waggener writes:

It has very little mirror vibration as well. You hear it more than you
feel it, and it doesn't make much noise.

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