The Wife Was Right

"HKN" wrote

> Since I'm buying a UW housing for my PS400, I was wondering - is it a
> problem using my 10W HID light with a video diffuser as a "strobe"?? In
> theory (my) it should bring the light needed for a proper shot, since I
> can
> point the light directly at the object using the goodman handle.

It depends on two things, the color temperature of your light and whether
the HID's coverage is comparable to the area seen by your lens. Even if
everything works out OK, it's still a pain in the rear to try and keep the
light pointed where you need it while you're composing your shot and that's
assuming that your subject will let you get a light that bright close enough
for the picture you want.

Lee

HKN <mabehemaREMOVE@THIStdcadsl.dk> wrote:

> Since I'm buying a UW housing for my PS400, I was wondering - is it a
> problem using my 10W HID light with a video diffuser as a "strobe"?? In
> theory (my) it should bring the light needed for a proper shot, since I can
> point the light directly at the object using the goodman handle.

If you take a trypod down with you it may work but the light out-put
is not nearly enough. any half decent flash puts out many times the
light you have now.

<http://meekings.net/diving/pg-2004/pg-2004-Pages/Image11.html>
shows just how much difference in light you get using a 10~18W HID
compared to a sea and sea DX90 and an Inon D-180

--
>replace spamblock with my family name to e-mail me

warm-water-diver@spamblock.net (Jerome Meekings) pounded away at his
keyboard resulting in:
:<http://meekings.net/diving/pg-2004/pg-2004-Pages/Image11.html>
:shows just how much difference in light you get using a 10~18W HID
:compared to a sea and sea DX90 and an Inon D-180

What are we supposed to be looking at? Is part of this picture
illuminated with an HID light and another part with a strobe?

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

Dan Bracuk <NOTbracuk@pathcom.com> wrote:

> What are we supposed to be looking at? Is part of this picture
> illuminated with an HID light and another part with a strobe?

The whole is illuminated with the two strobes, but you can also see the
very small area, around the sea snake, that is lit by 1 HID and the area
near the prop shaft lit by the other.

That clearly shows the small light output of the HID compaired to a
strobe.

Of course the strobe light is for a very short time.

I do not remember if either of the HIDs was greater than 10W

FWIW I am looking into getting lighting for video to cover about the
same field though not in such depth and I will need twin 25 Wat HIDs as
a minimum, and they would not have as much light output as one of my
strobes, neither of which is really high powered.



--
>replace spamblock with my family name to e-mail me

warm-water-diver@spamblock.net (Jerome Meekings) pounded away at his
keyboard resulting in:

:The whole is illuminated with the two strobes, but you can also see the
:very small area, around the sea snake, that is lit by 1 HID and the area
:near the prop shaft lit by the other.

Here is the picture again.

http://meekings.net/diving/pg-2004/p...s/Image11.html

Sea snake? Oh yeah, there it is in the bright spot. I hadn't even
noticed it the first time, have you considered cropping?

The picture you get when you press the previous link is quite nice.

And is that you in P1020271.JPG? And what are all these fish doing
http://meekings.net/diving/pg-2004/p.../Image77.html?

No wonder that light is so bright, look at the size of it
http://meekings.net/diving/pg-2004/p.../Image171.html. You
can right near broil a steak with it.

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


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"Dan Bracuk" <NOTbracuk@pathcom.com> wrote in message
news:nnlru019p85d71ouva74qmavomc9uussmn@4ax.com...
> warm-water-diver@spamblock.net (Jerome Meekings) pounded away at his
> keyboard resulting in:
>
> :The whole is illuminated with the two strobes, but you can also see the
> :very small area, around the sea snake, that is lit by 1 HID and the area
> :near the prop shaft lit by the other.
>
> Here is the picture again.
>
> http://meekings.net/diving/pg-2004/p...s/Image11.html
>
> Sea snake? Oh yeah, there it is in the bright spot. I hadn't even
> noticed it the first time, have you considered cropping?
>
> The picture you get when you press the previous link is quite nice.
>
> And is that you in P1020271.JPG? And what are all these fish doing
> http://meekings.net/diving/pg-2004/p.../Image77.html?

I think they might be a type of goatfish and they are sweeping the sand and
eating. I saw something similar to this shot a few times while in Mabul.

> No wonder that light is so bright, look at the size of it
> http://meekings.net/diving/pg-2004/p.../Image171.html. You
> can right near broil a steak with it.

It looks like a type of DPV to me and not a dive light.

Dan Bracuk <NOTbracuk@pathcom.com> wrote:

> :The whole is illuminated with the two strobes, but you can also see the
> :very small area, around the sea snake, that is lit by 1 HID and the area
> :near the prop shaft lit by the other.
>
> Here is the picture again.
>
> http://meekings.net/diving/pg-2004/p...s/Image11.html
>
> Sea snake? Oh yeah, there it is in the bright spot. I hadn't even
> noticed it the first time, have you considered cropping?

Yes I have however the interesting point in this is also the area
iluminated by the flashes not just the snake.

>
> The picture you get when you press the previous link is quite nice.

Thanks.

>
> And is that you in P1020271.JPG? And what are all these fish doing
> http://meekings.net/diving/pg-2004/p.../Image77.html?

They are a A swarm of juvenile catfish and they are feeding.
I have put up a page with a short QT movie linked from
http://meekings.net/movies/movie%20start.html

>
> No wonder that light is so bright, look at the size of it
> http://meekings.net/diving/pg-2004/p.../Image171.html. You
> can right near broil a steak with it.

If you look realy hard the light head handle is just visable behind
steves long hose regulator but the light and canister can't be seen.

If you thought the large white object was the light it would probably
cook the whole cow

But it is a Gavin scooter one of the white ones.
http://www.gavinscooters.com/pages/n...rtbody_jpg.htm

>
> Dan Bracuk


--
>replace spamblock with my family name to e-mail me