Underwater

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29.10.2003 20:12:00
Does it make sense to buy underwater housing for Canon IXUS 400? Can anyone post pictures made data or similar devices using the underwater housing.
 

31.10.2003 7:16:00
Worth it. . . .
I'll send pictures taken with boxing.

31.10.2003 10:28:00

I'll send pictures taken with boxing. - then it is better to spread, all interesting.

31.10.2003 10:44:00
Ok, tomorrow pentax33l. narod. ru lay

already threw a look. . . . only there to lift fotikom Sony, pomoymu DSC p60 (damn, I do not remember )


31.10.2003 10:58:00
and what is there to do with boxing? in the bath which?

31.10.2003 11:17:00

already threw see - yes for such surveys requires very clean water well

01.11.2003 3:06:00

quote:
yes for such surveys requires very well, clean water
There are places where the water is cleaner. . . . but where Fota Fota there. . . . .

01.11.2003 9:46:00
At last I unscrewed his friend at the footage from the V400 taken underwater in the Red Sea. Yesterday terminals to stop
Immediately warn that this is the best. I photographed it really floating on the surface of the mask and the mother at this wave cloudy
water and everything else that prevented him from shooting.
http: // main. restoration. ru: 81 / cgi-bin / photo / index. cg ... p; id = Oct27254. JPG
http: // main. restoration. ru: 81 / cgi-bin / photo / index. cg ... p; id = Oct27284. JPG
http: // main. restoration. ru: 81 / cgi-bin / photo / index. cg ... p; id = Oct27297. JPG

01.11.2003 11:12:00
I gradually gather facts on how to take good pictures under water. That's what managed to collect.
1. Under the water you can not use the internal flash of the camera, because the picture will be numerous highlights from suspension in water, which is always present.
2. Instead of the external flash is better to use. . . two external flashes
3. If no flash - 1/125 shutter priority. Under the water is very hard to keep focus when you sausage. Forget the automatic mode.
4. The fight against fogging lenses underwater case:
- inside cover lens defogger and wipe dry with a soft cloth after otherwise be divorced from Antifog.
- charge the camera in a box in a cool, dry place. Even better - under a stream of cold air conditioner.
5. After shooting - required photoshop. The images are slabonasyschennye and dusky.
6. Subject distance - less than 1, 5 meters, more does not make sense.
While all.

01.11.2003 13:58:00
Something I have this theme is not immediately noticed and created his

Keane and here too the "penny"

http: // knocknock. narod. ru / s40

01.11.2003 19:27:00

Something I this topic did not notice, and created his - and I mean all confused and put the promised pictures here and gave a link to the topic by V400. How do you like the way my pictures?
Hear what would not further confused nobody Slay two themes together.

02.11.2003 5:25:00

02.11.2003 14:10:00

Very useful link
Read sure about the "White Balance", otherwise the pictures will be given to "blue"
(channels when shooting underwater unbalanced).


http: // main. restoration. ru: 81 / cgi-bin / photo / index. cg ... p; id = Oct27284. JPG
good shot

(removed the empty areas in red and the blue channel)
In my become even better?

PS
rummaged in his archive, found a case in point, where is clearly seen what can be done with image after data channels
shot on film for a long time (slide scanning, correction)

02.11.2003 16:41:00
In my
become even better? - in my opinion too. I, too, after you received these shots chased them through avtolevel, and the quality was better. At least I liked it. I just put the originals that used to show what really turns when shooting underwater.

02.11.2003 16:53:00

and I realized
I Iteresno this topic, as all have seen with my own eyes, but did not take off. . . (If such cameras were not).
in the second post (Dimka) posted pictures of the bay where I once plunged repeatedly. . .

03.11.2003 6:35:00

quote:
in the second post (Dimka) posted pictures of the bay where I once plunged repeatedly. . .
on EMAP what? travel, or what?

Underwater shots are taken in Dalnegorsk.

03.11.2003 10:15:00
quote:
:
(removed the empty areas in red and the blue channel)
In my become even better?


And how to remove these empty areas?

03.11.2003 11:15:00

on EMAP what? travel, or what?
not only on the EMAP, estes, but. . .


In Photoshop you press Ctrl + L (window with a histogram and will)
then possible for each channel separately (red, green, blue) engines all lead to the desired result

03.11.2003 15:53:00
How do you
way pictures?
Thank you, nothing like that. Roughly the same as that on the S40, but the pictures do little to understand it all at once
still have pictures?

We shark is not very well-received, it is a pity ( http: // knocknock. Narod. Ru / s40 , the third shot).
girl who at the time had a camera, you must first have been properly "yelled" when she saw a 4-foot "submarine" under him, and the beast had time to have a little step aside. . .

03.11.2003 16:22:00

seems like this shark is not dangerous, well, not a cannibal

03.11.2003 18:29:00



If all went swimming every day fun with different sharks and know which one who has
For the first time people are quite frightened, especially the ladies, when they saw the very near four-meter (approximately) "baby" , although I personally made the shark rather "peaceful" impression

04.11.2003 3:00:00

& gt; We shark is not very well-received
Yes well it came out.
colors everything, only they are "dispersed" (click to ACDSee "Auto Levels").
For more fine-tuning is necessary to reduce the background is divided and shark itself, IMHO.

04.11.2003 13:41:00

Yes well it came out.

I like this

It can be removed 1) closer - with less distortion of colors 2) with a muzzle 3) with a tail 4) more than once
I'm a little behind her swim, taking away the camera down, but it was already removed from afar

04.11.2003 15:52:00
Hmm, if you tell his wife about the flash and hopping it costs - just kill A death without a flash.

04.11.2003 16:53:00

Anyhow, it's a shark. . . not as portraits in the studio shooting
Any shot underwater in itself unique. So


How about a good spotlight? Adapt something like fog from the unit to the battery UPS. IMHO, you should get cheaper and very "angry". . . necessary poryt network
 

04.11.2003 17:19:00
Spotlight has a good piece of dollars pulls, and the fish may frighten know, 10 meters the pressure in a car tire - 2 atmosphere, and at 30 meters - 4. Spotlight should be sturdy and waterproof

04.11.2003 17:33:00
I'm aware
(with a small correction - 10 m excess pressure of 1 atm, and so on. D. For every 10 m on the 1st added).
To compensate for pressure nipple twists and pump up a bicycle pump. . .

04.11.2003 22:00:00
Where screwed? In a flash? ?

06.11.2003 14:01:00
Here there is still little article:
http: // www. barracuda. ru / index. cfm? id = 287

06.11.2003 14:16:00

lamp bursts overpressure? They are not designed for it.

06.11.2003 14:16:00
About
pressure correctly written. You just different terminology: your excess pressure of 1 atmosphere - and therefore excessive, that to the existing atmospheric added (1 atm. The atmosphere + 1 atm. For 10 m of water over you.). Well, and so on. D.

06.11.2003 14:39:00
it is necessary to discharge lamp high pressure use. such as metal-halogen, she and a good range and high efficiency

06.11.2003 23:17:00
No, I wrote about the right car tire. Such a pressure of 20 meters.

06.11.2003 23:41:00

Such a pressure of 20 meters. - right now.

07.11.2003 13:28:00


pressure of 1 atm. already exists at sea level, has not yet got into the water. Further, at every 10 m in depth is added to 1 atm. Respectively. 20 m - 3 atm.
believe me or look in the tutorials? Or here to invite?

About underwater cameras, accessories and covers: http: // www. digideep. com / - I think here the most comprehensive catalog of all sorts of stuff. Even with commentary owners.

08.11.2003 5:14:00

& gt; Believe me or look in the tutorials?
And what textbooks posovetuyute. Enough for school, or better to the works of Jacques Cousteau and E. Ganja he studied?

Sergey understood and corrected. . .
talk was about "excessive" pressure.
This common term in diving practice. And it means an increase in pressure when submerged.


Well, we have a whole discussion
intimidate people comparing you to the bus. How to present yourself in. . . horror takes. . .
. . . any light stand. . .
return to boxing.
& gt; Where screwed? In a flash? ? In
spyshku twist nothing. Why spoil a good thing. . .
Backpressures do in a container (box) to prevent leakage.
When that produced periodic "Sportsman submarine." That's what I wrote, can be found in these magazines, there are many self-made designs of additional equipment (in Vol. H. Photobox and lights).
Or buy for big bucks brand. . .

08.11.2003 10:51:00
quote:
:


pressure of 1 atm. already exists at sea level, has not yet got into the water. Further, at every 10 m in depth is added to 1 atm. Respectively. 20 m - 3 atm.
believe me or look in the tutorials? Or here to invite?

I looked into books (by the way, http: // aipp. Narod. Ru , we learned it), and so, the same pressure as in a car tire (2 atm excess or 3 atm general as would you like) - about 20 meters. Or am I wrong?

08.11.2003 12:31:00
You're right

Here is a thin (thinner than 1 mm) barrier and allows us under pressure. That it compensates for excessive water pressure.

Now again about boxing (modeling design). Take a glass jar
(large), dress the neck medical gloves. And immerse it in depth. At a depth of 10 meters air volume decreases by 2 times and gloves will be dragged into the banks.
And inside banks can be anything: a camera, flashlight, flash. . .

08.11.2003 22:44:00
We have two eagles in Gelendzhik made a homemade box for the camera. Not bad they did. But they have been dropped by 40 meters and mash specifically.
ValF - that is, the membrane of the second stage?
Glove going, yes, but the design is really very shaky obtained

09.11.2003 3:55:00

is that the membrane of the second stage? it native , membrane from lung machine AVM-1M (analogue scuba J. Cousteau). From under her and we breathe. . .
C "glove" - ‚Äč‚Äčthat's me for clarity. . . joked. "The Glove" is a kind of automatic pressure compensation. By the way if such a design will fail on 40 meters, nothing happens, except that the air bubble will be less than 4 times.
We have two eagles in Gelendzhik made a homemade box for the camera. Not bad they did. But they have been dropped by 40 meters and mash specifically. - to the float had to tie . . . sorry for the camera

09.11.2003 9:11:00
Nothing, they then have it repaired. All right

10.11.2003 12:35:00
2 Valf & amp; Serjik as people around you can see who knows the issue firsthand.

Refinements want about AVM-1M

Modeling boxing - expect that our hands grow from the right place and quite rugged and waterproof box in form transparent glass apparatus with naprtiv Lenses do we know how. Leaving aside the question of access to the control buttons (transparent thick vinyl bad enough to decide this issue in my case - I just need to press a button to turn anything inappropriately or drag). There remains the question of overpressure. Stored balloon with air under high pressure (say a can of uglikislotoy from home siphon - chur not long laugh when told stupidity). The task of pressure relief from boxing on ascent solved simply return valve. It is necessary to solve the problem of pressure equalization with external pressure at immersion box by supplying air from a high pressure cylinder to the box until the pressures are equal.

AVM-1M - this is the zagadachny beast that does exactly that.

WBR CrazyElk

I'd like to shoot underwater. I do not want to spend this amount commensurate with the value of the unit for branded boxes. I'd like to understand that will result in the creation of boxing for a more or less decent depth. For indecent (up to 10 meters) as I understand it is a relatively cheap vinyl skins.

Very much inspired by the size of this beast - if everything is so compact that it is possible to construct a fairly universal stand bolted to the machine as a tripod in the MDM will air tank high pressure valve for pressure relief and control for paging by immersion. And as for the box itself konkrenogo machine to cut out / vykleevat of thick vinyl skins appropriate (for aesthetes and loving quality with glass window of two neutral density filters of this aparata) adjacent to the stand by perimitru.

10.11.2003 13:20:00




membrane lung machine, not the best example for the simulation box. At the moment of pause between inhalation and exhalation the diaphragm acts outside water pressure inside the air pressure in your lungs with it, and this is very important, these pressures are the same. Thus the pressure force of the air and water compensate each other and the membrane does not bend. When you breathe inside the lungs there is a slight negative pressure, the membrane bends under the influence of excess, relative to the air pressure in the lungs, the water pressure and pushes the valve lever LA. Differential pressure test membrane not more than 0. 07 atm, at high differential pressures inside and outside the lungs there is a risk of barotrauma of the lungs.

All it has to do with Nick boxes, cameras, and even more so to outbreaks. In a flash lamp have, calculated for ambient pressure of 1 atm, the air pressure at sea level. If you immerse the lamp in this "soft" box (the bank with the glove, blowing from the balloon), at 10 m of fresh water pressure is 2 atm, as in this case has a value of absolute pressure. Will the lamp is pressure - is the question. For the camera, if there is no built-in flash, it is not critical, since there is no hollow parts and a box you can blow air to a pressure corresponding to the depth of the dive. A flash or torch - is critical.

10.11.2003 14:08:00
Guys, what is there to discuss? Up to 5 meters - vinyl nepromokayka. From 5 to 10 meters - nepromokayka with a glass and glass under the zoom lens. Deeper than 10 meters - only a hard box. (10-30 m - plastic, 30-40m - steel). About swapping pressure boxes, flash and so on. N. I heard for the first time and to be honest I think is complete nonsense
Pro boxing, running deeper 50-60 m- do not know whether such because the buttons on the box must be prop up very well, stiffer springs (to a depth of at sticky), and closer to the surface of the press is simply impossible.

10.11.2003 14:48:00

About swapping pressure boxes, flash and so on. N. I heard for the first time and to be honest I think is complete nonsense
No, not nonsense. But limited opportunities.

Pro boxing, running deeper than 50-60 m- do not know whether such because the buttons on the box it is necessary to prop up very well, stiffer springs (so that at a depth of not sticky), and closer to the surface of the press is simply impossible.

So nobody does, do vraschayushiysya governing body, the force of water pressure acting along the axis of rotation and no particularly hard springs is not necessary. For example, you press the shutter, a lever, it has an axis of a gland inside the other lever presses the button.

10.11.2003 15:57:00
I do not know, why my WP-DC300 such tight button. Probably not to get stuck?

10.11.2003 16:16:00

This can be a solution to the shallow depth. For greater depths do so, as I have described. Removed and 100 m and deeper, there is already a spring button set would have.

used for electrical contacts Reed buttons, magnet outside the reed switch inside


10.11.2003 17:38:00
quote:
:

I'd like to shoot underwater. I do not want to spend this amount commensurate with the value of the unit for branded boxes.
cost about half the cost of the boxing machine. But the cost is equal to the cost of the flash unit. . . Ambush, shorter
 

11.11.2003 8:44:00
Continue if the interest is not exhausted

First the facts.
Quote (copyright, Collegiate Dictionary):
" Xenon lamp , discharge light source of high and ultra-high pressure, in a rum-arc discharge occurs in avtmosfere Xe. It is a quartz bulb filled with xenon (tubular or spherical) with built-in electrodes hermetically . Characterized by radiation spectrum close to the sun.
Xenon lamp - one of the most powerful light sources (projectors, projectors). "
way too galogenki gas-filled. And the pressure inside the bulb glow when not too small (gas expands when heated not weakly)

recently went to the store. . . Chinese-made lights, waterproof, diameter of the reflector is about 100 mm, with a choice of galogenki and a xenon lamp. . . ), Cost about 400 rubles. After a short intervention "skillful hands" can match, IMHO.


bonus for those who had the patience to read this post.
Take the tube from the dropper. Zaplavlyaem one side. Fastened to a stick. Remembering
law propor- tional volume reduction with increasing pressure and graduating.
Wand fasten a rubber band on his forearm.
boundary between air bubbles and water immersion is clearly visible. The design has been successfully tested as a depth gauge. Free general

found useful related links
http: // www. diverphoto. ru
http: // uwf. chat. ru / uwph. html
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Underwater

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