Look Ma, No Flash

"Dave C" <dcalderbank@top.monad.net> pounded away at his keyboard
resulting in:
:Otherwise, how about setting your shutter fast enough to freeze motion
:and correcting underexposure later? That's just a thought, as I haven't
:done much lightening of images and don't know how much would be lost.

That's what I had in mind all the time. Has anyone done this before?
What shutter speed did you use? Did you also keep a constant f-stop
or did you keep that on automatic? How were the results.

WRT lightening images, Microsoft Digital Image Pro, which I use has a
Add Flash feature. It works really well with underwater shots in that
not only does it add light, it also brings out the colours. I'll show
you guys a before and after example in a little while.

Dan Bracuk
If we don't succeed, we run the risk of failure.

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"Dave C" <dcalderbank@top.monad.net> pounded away at his keyboard
resulting in:
:Otherwise, how about setting your shutter fast enough to freeze motion
:and correcting underexposure later? That's just a thought, as I haven't
:done much lightening of images and don't know how much would be lost.

That's what I had in mind all the time. Has anyone done this before?
What shutter speed did you use? Did you also keep a constant f-stop
or did you keep that on automatic? How were the results.

WRT lightening images, Microsoft Digital Image Pro, which I use has a
Add Flash feature. It works really well with underwater shots in that
not only does it add light, it also brings out the colours. I'll show
you guys a before and after example in a little while.

Dan Bracuk
If we don't succeed, we run the risk of failure.

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Not all the pictures were bad. Some were worth showing to other
people. Anything marked New on this page,
http://www.pathcom.com/~bracuk/underwater/index.htm, was taken during
this trip.

All the others were taken on other trips, using various foms of flash.
In most cases, the type of camera is indicated. If it says Seallife
Reefmaster, I used an external flash. If it said Sony, I used the
built in one.


Dan Bracuk
If we don't succeed, we run the risk of failure.

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Not all the pictures were bad. Some were worth showing to other
people. Anything marked New on this page,
http://www.pathcom.com/~bracuk/underwater/index.htm, was taken during
this trip.

All the others were taken on other trips, using various foms of flash.
In most cases, the type of camera is indicated. If it says Seallife
Reefmaster, I used an external flash. If it said Sony, I used the
built in one.


Dan Bracuk
If we don't succeed, we run the risk of failure.

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Not all the pictures were bad. Some were worth showing to other
people. Anything marked New on this page,
http://www.pathcom.com/~bracuk/underwater/index.htm, was taken during
this trip.

All the others were taken on other trips, using various foms of flash.
In most cases, the type of camera is indicated. If it says Seallife
Reefmaster, I used an external flash. If it said Sony, I used the
built in one.


Dan Bracuk
If we don't succeed, we run the risk of failure.

----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
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Dan Bracuk <bracuk@pathcom.com> pounded away at his keyboard resulting
in:
:WRT lightening images, Microsoft Digital Image Pro, which I use has a
:Add Flash feature. It works really well with underwater shots in that
:not only does it add light, it also brings out the colours. I'll show
:you guys a before and after example in a little while.

Here is a photo enhanced 3 times. Two of the enhancements were done
using techniques mentioned in this thread.

http://www.pathcom.com/~u1072675/x/

Dan Bracuk
If we don't succeed, we run the risk of failure.

----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
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----= East and West-Coast Server Farms - Total Privacy via Encryption =----

Dan Bracuk <bracuk@pathcom.com> pounded away at his keyboard resulting
in:
:WRT lightening images, Microsoft Digital Image Pro, which I use has a
:Add Flash feature. It works really well with underwater shots in that
:not only does it add light, it also brings out the colours. I'll show
:you guys a before and after example in a little while.

Here is a photo enhanced 3 times. Two of the enhancements were done
using techniques mentioned in this thread.

http://www.pathcom.com/~u1072675/x/

Dan Bracuk
If we don't succeed, we run the risk of failure.

----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
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----= East and West-Coast Server Farms - Total Privacy via Encryption =----

Dan Bracuk <bracuk@pathcom.com> pounded away at his keyboard resulting
in:
:WRT lightening images, Microsoft Digital Image Pro, which I use has a
:Add Flash feature. It works really well with underwater shots in that
:not only does it add light, it also brings out the colours. I'll show
:you guys a before and after example in a little while.

Here is a photo enhanced 3 times. Two of the enhancements were done
using techniques mentioned in this thread.

http://www.pathcom.com/~u1072675/x/

Dan Bracuk
If we don't succeed, we run the risk of failure.

----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
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Dan Bracuk wrote:
> Dan Bracuk <bracuk@pathcom.com> pounded away at his keyboard resulting
> in:
> :WRT lightening images, Microsoft Digital Image Pro, which I use has a
> :Add Flash feature. It works really well with underwater shots in that
> :not only does it add light, it also brings out the colours. I'll show
> :you guys a before and after example in a little while.
>
> Here is a photo enhanced 3 times. Two of the enhancements were done
> using techniques mentioned in this thread.
>
> http://www.pathcom.com/~u1072675/x/
>
> Dan Bracuk
> If we don't succeed, we run the risk of failure.
>
> ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
> http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
> ----= East and West-Coast Server Farms - Total Privacy via Encryption =----


There is a pretty reasonable improvement with the levels fix. You might
want to have a go at some more complex colour correction. If you have
photoshop then there are loads of resources on the subject. If not you
can download GIMP free of charge and most of the techniques can be used
but you might have to figure out what the photoshop term for a function
is in GIMP. Here is a link to a fairly comprehensive colour correction
resource http://www.scubaboard.com/cms/article18-doc5.html. The
Mandrake method is one that I have found particularly useful in the
past. I had a go using it on a couple of your shots and in my eyes it
gives them another boost to what I imagine the scene looked like when
you pushed the shutter.

jon

Dan Bracuk wrote:
> Dan Bracuk <bracuk@pathcom.com> pounded away at his keyboard resulting
> in:
> :WRT lightening images, Microsoft Digital Image Pro, which I use has a
> :Add Flash feature. It works really well with underwater shots in that
> :not only does it add light, it also brings out the colours. I'll show
> :you guys a before and after example in a little while.
>
> Here is a photo enhanced 3 times. Two of the enhancements were done
> using techniques mentioned in this thread.
>
> http://www.pathcom.com/~u1072675/x/
>
> Dan Bracuk
> If we don't succeed, we run the risk of failure.
>
> ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
> http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
> ----= East and West-Coast Server Farms - Total Privacy via Encryption =----


There is a pretty reasonable improvement with the levels fix. You might
want to have a go at some more complex colour correction. If you have
photoshop then there are loads of resources on the subject. If not you
can download GIMP free of charge and most of the techniques can be used
but you might have to figure out what the photoshop term for a function
is in GIMP. Here is a link to a fairly comprehensive colour correction
resource http://www.scubaboard.com/cms/article18-doc5.html. The
Mandrake method is one that I have found particularly useful in the
past. I had a go using it on a couple of your shots and in my eyes it
gives them another boost to what I imagine the scene looked like when
you pushed the shutter.

jon