Male
some come already and this from a long time ago ....
ChrigelKarrer
Member Since 05 Mar 2010Offline Last Active May 23 2013 04:08 AM
#330816 Went with Backscatter's Airlock
Posted by
on 04 May 2013 - 05:13 AM
#327603 How many floats do you need?
Posted by
on 10 March 2013 - 06:11 AM
I have some special, Italian floats on my D800 rig and i went with the try and error system to have the rig neutral.
As Steve said, there will be a difference between your dome and macromport so i found the - for me - practical solution
that i add approx 200 grams of lead on my handles when i use the mini dome port, 400 grams when i use the big dome port
and none when i use the macro port.
I fine tune my housing so perfect that i can just put it in front of me and it hovers there, this sometimes comes handy when
i need my hands free for something, but i use the rope from the handle to avoid that she floats away.
Chris
#325196 D800 Crisis!
Posted by
on 27 January 2013 - 07:38 AM
Just don't use Nikon ViewNX or other Nikon transfer software.
I copy and past my files from the card to the had disk and open them then with Lightroom.
Chris
I copy and past my files from the card to the had disk and open them then with Lightroom.
Chris
#320076 A VERY good reason to buy equipment insurance!
Posted by
on 07 November 2012 - 06:40 AM
Maybe i am a idiot,
as i just paid about 1800$ to insure my 20'000$ photo and dive gear ...
I belive - and was taught when i was a kid - that when i destroy things i will need to replace it by my self or pay for a insurance.
Chris
as i just paid about 1800$ to insure my 20'000$ photo and dive gear ...
I belive - and was taught when i was a kid - that when i destroy things i will need to replace it by my self or pay for a insurance.
Chris
#319880 Opening scuba tanks for cleaning/visual inspection
Posted by
on 04 November 2012 - 11:43 PM
i agree with jahjahwarrior
You close them too tight or you have a serious issue with galvanic corrosion between the tank and the valve.
When opening the tank you should use a round brass brush to clean the tank treads and a special sanding disk tool
to clean the o-ring seat.
Apply a very thin film of cristolube and screw them down hand tight and then "a bit more"
You should use only christolube or other oxygen safe grease on any tank parts as you never know if they get filled - for whatever reason - with Enriched Air or even worst with pure oxygen.
The additional price for oxygen safe grease will be only a few tenths of dollars more.
Chris
You close them too tight or you have a serious issue with galvanic corrosion between the tank and the valve.
When opening the tank you should use a round brass brush to clean the tank treads and a special sanding disk tool
to clean the o-ring seat.
Apply a very thin film of cristolube and screw them down hand tight and then "a bit more"
You should use only christolube or other oxygen safe grease on any tank parts as you never know if they get filled - for whatever reason - with Enriched Air or even worst with pure oxygen.
The additional price for oxygen safe grease will be only a few tenths of dollars more.
Chris
#319367 Choosing the light - Great video light with option to make good photos
Posted by
on 28 October 2012 - 11:15 PM
Keep one thing in mind:
1000 Lumen is not necessary the same bright as 1000 lumen of another lamp or used with another reflector.
I see that some manufacturers use the lumen of the LED and not of the light emitted by the lamp.
My 180 Lumen 10° focus light on the Z-240 is - because of it's 10° beam - brighter than my 4000 lumen 120° Mangrove video ligh.
Unfortunately there is no standard test for dive or video lights to provide a valid and useful tool for comparing the effective light output,
like th GN for strobes, even if some manufacturers use their own values like Watt/Seconds or Jule.
The German dive magazine "Unterwasser" made a big test of dive lights with staggering results:
- only L&M Sola 1200 reached their advertised power, well 2% lesser
- Hartenberger did not advertised the power, thus not a liar and their lamps are of legendary quality and engineering
- the rest had between 40-66 % lesser lumen than advertised
For any German speaking persons, the test can be found here: http://www.lightando...m/wattluege.pdf
Chris
P.S.
In any case, a video light may work for macro and/or night dive or low light ambients,
but a strobe is always much more powerful.
1000 Lumen is not necessary the same bright as 1000 lumen of another lamp or used with another reflector.
I see that some manufacturers use the lumen of the LED and not of the light emitted by the lamp.
My 180 Lumen 10° focus light on the Z-240 is - because of it's 10° beam - brighter than my 4000 lumen 120° Mangrove video ligh.
Unfortunately there is no standard test for dive or video lights to provide a valid and useful tool for comparing the effective light output,
like th GN for strobes, even if some manufacturers use their own values like Watt/Seconds or Jule.
The German dive magazine "Unterwasser" made a big test of dive lights with staggering results:
- only L&M Sola 1200 reached their advertised power, well 2% lesser
- Hartenberger did not advertised the power, thus not a liar and their lamps are of legendary quality and engineering
- the rest had between 40-66 % lesser lumen than advertised
For any German speaking persons, the test can be found here: http://www.lightando...m/wattluege.pdf
Chris
P.S.
In any case, a video light may work for macro and/or night dive or low light ambients,
but a strobe is always much more powerful.
#319115 Wide angle zooms for Nikon D800
Posted by
on 25 October 2012 - 10:16 PM
clairvoyant
problems with soft corners can be nasty to tackle down.
If you have a good uw photo shop near or a photographer with the same housing you can do some tests:
- using a additional ring to set the dome further away to its maximum before vignetting occurs
- use high f-stops
- using a different dome with a different curvature
- using the right power diopter
I used a +3 diopter on my Ikelite housing but i was not really happy with it for quality reasons and still, but still soft corners
Chris
problems with soft corners can be nasty to tackle down.
If you have a good uw photo shop near or a photographer with the same housing you can do some tests:
- using a additional ring to set the dome further away to its maximum before vignetting occurs
- use high f-stops
- using a different dome with a different curvature
- using the right power diopter
I used a +3 diopter on my Ikelite housing but i was not really happy with it for quality reasons and still, but still soft corners
Chris
#318614 D800, S&S housing, and some questions...
Posted by
on 17 October 2012 - 11:18 PM
I use the Athena 170 Vario Dome with the Sigma and my Hugyfot housing, but it need a 20mm long adapter from S&S to Hugyfot.
This adapter is the reason for bad vignetting and i am almost sure that this dome works very well on the S&S housing as it is 20mm nearer.
The Athena dome is a very nice construction with a perfect coated glass and gives tack sharp images with the Sigma 15mm diagonal fisheye.
Chris
This adapter is the reason for bad vignetting and i am almost sure that this dome works very well on the S&S housing as it is 20mm nearer.
The Athena dome is a very nice construction with a perfect coated glass and gives tack sharp images with the Sigma 15mm diagonal fisheye.
Chris
#318466 GoPro Hero2 Protune Firmware
Posted by
on 15 October 2012 - 09:53 PM
uwexplorer,
the GoPro Hero2 has a automatic white balance.
Under certain circumstances - murky green water for example - the camera turn the green water in radioactive waste green water.
I found no way to avoid that and this behaviour makes color correction rather difficult as the color may change every time something white/clear
passes in front of the camera.
I experienced this effect only in Costa Rica where the water is rather green while in Sardinia the deep blue water seems to not - or much lesser -
influence the white balance. Using a color filter may reduce this effect but this is still to verify.
You can try this by your self holding a white slate or similar in sight and you will see how the color of the surroundings changes.
Chris
the GoPro Hero2 has a automatic white balance.
Under certain circumstances - murky green water for example - the camera turn the green water in radioactive waste green water.
I found no way to avoid that and this behaviour makes color correction rather difficult as the color may change every time something white/clear
passes in front of the camera.
I experienced this effect only in Costa Rica where the water is rather green while in Sardinia the deep blue water seems to not - or much lesser -
influence the white balance. Using a color filter may reduce this effect but this is still to verify.
You can try this by your self holding a white slate or similar in sight and you will see how the color of the surroundings changes.
Chris
#318065 Nikon Transfer Software corrupts D800 NEF files
Posted by
on 09 October 2012 - 06:27 AM
Arghhhh That Sucks!
Thanks for informing us about this issue!!!
I always copy them from the SD disk to my hard disk and import them in lightroom to see if everything went well.
Then i maybe make another backup or format the card to have it ready for the next pictures.
Chris
P.S. There are some treads about this issue here:
http://nikonrumors.c...pic.php?id=5578
http://www.planetnik...showtopic=17290
http://forums.adobe....message/4466065
And Nikons statement: https://nikoneurope-...tail/a_id/53027
Thanks for informing us about this issue!!!
I always copy them from the SD disk to my hard disk and import them in lightroom to see if everything went well.
Then i maybe make another backup or format the card to have it ready for the next pictures.
Chris
P.S. There are some treads about this issue here:
http://nikonrumors.c...pic.php?id=5578
http://www.planetnik...showtopic=17290
http://forums.adobe....message/4466065
And Nikons statement: https://nikoneurope-...tail/a_id/53027
