Multiple exposures in DSLR´s. Why not?

Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.

Thanks in advance,
--


Carlos A. B. Coutinho
Rio de Janeiro, RJ
Brasil

On Sat, 12 Feb 2005 17:19:23 -0200, Carlos wrote:

Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.


I guess nobody does it in-camera because it's
so trivial to do in Photoshop.

What is your objection to doing it in Photoshop?
Is it too easy? Do you want it to be harder?


rafe b.
http://www.terrapinphoto.com

Carlos wrote:
Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.

Thanks in advance,


My guess is once the shutter is closed, the data of each sensor cell
needs to be transfered out of the sensor immediately. Moreover, it's so
easy to combine pictures in Photoshop that this feature is not worth
considering to put in the camera.

In article , Carlos wrote:

Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

Yes - sensor noise accumulates. CCD sensors also overheat.

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.

You can use multiple flashes in a dark room or get a lens with a manual
shutter. Noise will accumulate while the sensor is active, resulting in
a photo that is inferior to photos merged in software.

Thanks in advance,

Carlos wrote in :

Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.

My guess is that it is technically possible, but the manufacturers don't
think it is worthwhile putting in a worthless feature that will not help
them sell any more cameras. If it was a useful feature with a lot of
demand for it then it would probably be available on several cameras.

If there was a camera that had every feature that was technically possible
to have could you imagine how incredibly stupid and expensive that camera
would be?



--
Mark Heyes (New Zealand)
See my pics at www.gigatech.co.nz (last updated 20-Jan-05)
"There are 10 types of people, those that
understand binary and those that don't"

Because it take time to do it. Only this.
It's trivial in Corel PhotoPaint too, but I don't want to spend time to
do it.
In film cameras I didn't to do it. I only took a double exposure shot
and nothing more.

rafe bustin wrote:

On Sat, 12 Feb 2005 17:19:23 -0200, Carlos wrote:


Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.



I guess nobody does it in-camera because it's
so trivial to do in Photoshop.

What is your objection to doing it in Photoshop?
Is it too easy? Do you want it to be harder?


rafe b.
http://www.terrapinphoto.com

--


Carlos A. B. Coutinho
Rio de Janeiro, RJ
Brasil

Photoshop has taken the place of many things we used to do with film and
processing. Actually, you are "processing" your photos in Photoshop, using
many of the same techniques you used to use with film and chemicals. You
just don't have to turn out the lights to do it.


"Carlos" wrote in message
...
Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.

Thanks in advance,
--


Carlos A. B. Coutinho
Rio de Janeiro, RJ
Brasil

Kevin McMurtrie wrote:

In article , Carlos wrote:


Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?


Yes - sensor noise accumulates. CCD sensors also overheat.

It was I think. Thanks.



My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.


You can use multiple flashes in a dark room or get a lens with a manual
shutter. Noise will accumulate while the sensor is active, resulting in
a photo that is inferior to photos merged in software.



I guess overheating is worse. I believe noise will be 99,9 % eliminated
in the next 2 years.

--


Carlos A. B. Coutinho
Rio de Janeiro, RJ
Brasil

MarkH wrote:

Carlos wrote in :


Why DSLR´s don't take multiple exposures shots? Is there any technical
limitation, like, sensor overheating, excessive noise, .... ?

My question is about the fact I don't want to make multiple exposure by
software edition. I want know if it's impossible by a technical limit or
because the manufactures don't want it.


My guess is that it is technically possible, but the manufacturers don't
think it is worthwhile putting in a worthless feature that will not help
them sell any more cameras. If it was a useful feature with a lot of
demand for it then it would probably be available on several cameras.

If there was a camera that had every feature that was technically possible
to have could you imagine how incredibly stupid and expensive that camera
would be?




I think that in the near future it will be available. Double exposure
(or multiple) is a single and common feature in SLR's and it will be
present in DSLR's one day.

--


Carlos A. B. Coutinho
Rio de Janeiro, RJ
Brasil

Carlos wrote:

I think that in the near future it will be available. Double exposure
(or multiple) is a single and common feature in SLR's and it will be
present in DSLR's one day.

Already available in Fuji S3 Pro.

Regards from Athens,
N.F.