Ambient light at 56m in temperature waters...

jtresfon · 25th September 2007, 09:20

Our group does regular dives in the 50m-65m range in Cape Town. The conditions at the bottom can vary from less than 1m vis up to 30m viz and the ambient light levels are always low. The temp is usually around 10 degrees centigrade. We have many awesome wrecks in this depth range and for the first time I took my camera down with no strobes to try some low ambient light shots.

The wreck is the General Botha (1947) and she lies at 56m in the middle of False Bay. Click HERE for the photos.

Rgds
Jean.

KevDD · 25th September 2007, 10:16

Nice pics. What iso are you using?

jtresfon · 27th September 2007, 06:51

ISO's very high due to low light levels, generally around 1600. Older generation Nikon's like my D70 don't handle high ISO's very well with lots of noise in the shot, but the new D300 is apparently the answer to world tension in this regard. If you have the time, patience and cooperative dive buddies you could use a low ISO and a slow shutter speed with a tripod.

Rgds
Jean.

***caveseeker7*** · 27th September 2007, 06:57

Played around with the D300 yesterday, it handles low light exposure very well indeed. The full size sensored D3 blows my mind though, better than anything else I've seen in that respect. And their new 3"/290,000 pixel monitors are awesome.

25th September 2007, 09:20	#1 (permalink)
jtresfon New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Sep 2006 Location: Cape Town Posts: 22	Ambient light at 56m in temperature waters... Our group does regular dives in the 50m-65m range in Cape Town. The conditions at the bottom can vary from less than 1m vis up to 30m viz and the ambient light levels are always low. The temp is usually around 10 degrees centigrade. We have many awesome wrecks in this depth range and for the first time I took my camera down with no strobes to try some low ambient light shots. The wreck is the General Botha (1947) and she lies at 56m in the middle of False Bay. Click HERE for the photos. Rgds Jean. __________________ www.underwaterimages.co.za It's not about being down deepest or longest, it's what you do when you're down there!
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25th September 2007, 10:16	#2 (permalink)
KevDD Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Oct 2005 Location: Dublin, Ireland Posts: 107	Re: Ambient light at 56m in temperature waters... Nice pics. What iso are you using?
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27th September 2007, 06:51	#3 (permalink)
jtresfon New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Sep 2006 Location: Cape Town Posts: 22	Re: Ambient light at 56m in temperature waters... ISO's very high due to low light levels, generally around 1600. Older generation Nikon's like my D70 don't handle high ISO's very well with lots of noise in the shot, but the new D300 is apparently the answer to world tension in this regard. If you have the time, patience and cooperative dive buddies you could use a low ISO and a slow shutter speed with a tripod. Rgds Jean. __________________ www.underwaterimages.co.za It's not about being down deepest or longest, it's what you do when you're down there!
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27th September 2007, 06:57	#4 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,411	Re: Played around with the D300 yesterday, it handles low light exposure very well indeed. The full size sensored D3 blows my mind though, better than anything else I've seen in that respect. And their new 3"/290,000 pixel monitors are awesome. __________________ Cheers Stefan "It is still a good day if you are on the green side of the grass! Su amigo Roberto!" Sponsor Lou in Race For Life!
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