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cho

Member Since 27 Jul 2009
Offline Last Active Jul 18 2011 01:31 PM
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Posts I've Made

In Topic: Strobes/Flash vs. Video lights?

09 December 2010 - 04:20 PM

I looked around and could not find info on why Video lights can't be used for still photography??? Is it range? Is it spectrum? Is it beam angle? With the new LED lights getting more and more powerful wondering if there is a way to dive without four light heads if you want to switch between stills and video on one dive.

Thanks...


http://wetpixel.com/...wtopic=36355=

sometimes I used continuos light in macro, wide macro.

In Topic: INON UFL-MR130 EFS60 Underwater Micro Semi-Fisheye Relay Lens in Action!

22 November 2010 - 06:22 PM

Are they any updates from people using this lens? I have been on the verge of buying one, but I had no dive trips planned so there wasn't much motivation to seal the deal. That will change soon. I would probably get the Nauticam housing and Canon 7D. Let me know if anybody has more experience with it.


Those are my works that recently was taken in Anilao. I have enjoyed much with this relay lens. In my opinion , to get proper focusing in both of foreground and background, the exact focusing site should be compromised. But it would be not easy.

In Topic: Nauticam

17 September 2010 - 07:48 AM

Hi Simon,

Thanks a lot for info, i though inon 45 is good for marco???? using nauticam VF will be easy when shooting marco at sandy bottom too?

i heard inon 180 VF is not that good... the images will dispaly in smaller or something like that.... when compare with inon 45, it is true


I have used 45 degree VF for 6-7- years , Seacam and Inon . In my opinion, except downward dierction of shot, it woild be much comfortable in aspect of your posture. In some cases, not like straight VF, you don't need bend your body or neck much.

In Topic: housed land strobe or UW strobe

17 August 2010 - 06:56 AM

Cho:

I am pleased to hear that you have had such good experiences with housed nikon land strobes. The housings seem to be split into two types: cylindrical, in which the strobe lies flat in the housing; and non-cylindrical where the strobe is aimed in the same way as it would be for direct flash on land. Do you have any views as to which is the better design?


Alsky72:

I don't think that Subal or Aquatica housings for the D90 allow optical connections, because there isn't space for the internal flash to flip up inside the housing.

Thanks for your responses.


I have both types. Patima and subal strobe housing is cylindrical, and 10 bar and Nautilus produced non cylindrical type, just similar form of land speed light. I prefer nautilus type (non cylindrical) due to compact size and good buyancy. But it has not dom shaped window, so narrower lighting area than cylindrical type. To me, this downside of it never made me prefer cylindrcal type. Those are stuffs using SB 900 . I could not find lack of degree of lighting or power eventhough wide angle shot. Thank you.

In Topic: housed land strobe or UW strobe

16 August 2010 - 04:03 PM

I am trying to decide which strobe to use with a housed Nikon D90. I will mostly be doing macro, or at least fairly close-up photography (max subject distance 1m).

The idea of housing a Nikon SB800 or SB900 looks quite compelling. The Nikon iTTL CLS flash system is pretty sophisticated and these strobes are dedicated to the camera.

The TTL converters for UW strobes makeㅑ me a little nervous - the external ones (e.g. Sea & Sea) look rather bulky and vulnerable, and the internal ones require taking a pair of wire cutters to a shiny new 3000 housing.

What is the opinion of forum members? Is a housed land strobe a good alternative for the pictures I want to take. What are the downsides?

Thanks


I have used SB 800 and 900 for many years. Still I am sure that it was one of the best alternative way of using i TTL for nikon system. Positive advantages as follows : 1) good underwater balance , or buyancy. 2) easy to control the E.V. 3) very accurate TTL control 4) you can control degree of lighting as you want in wide angle as well. Down sides as follows ; 1) If you set strobe as wide angle, a little bit lower GN . ( but I was never disappointed with low GN at wide angle) 2) impossible using dual TTL , you should set manaul syncro, not slave at the other side 3) In my experience,if you set one side TTL and other side slave TTL, sometime you would get under expoure or over exposure picture.4) cost will be not lower than other ordinary strobe.

I know some company produce that housing, subal , Patima, Nautilus (Japan), 10 bar, Nexus (SB 400? new model) ect,