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Andaman Sea Blackwater

Started Jan 20, 2022 | Photos thread
kelpdiver Veteran Member • Posts: 5,564
Re: Andaman Sea Blackwater

gokhankuzu wrote:

What exactly do you mean by blackwater? Night diving, cave diving, hole diving, under the rock diving or diving in dark waters below 60 meters? I am a photogrammetry engineer and I have 25 years of underwater photography experience. All my equipment so far is professional grade. I generally used Sea&Sea systems. I had it done in special-custom products.

ugh....I have to echo B's remarks - if you didn't know what a blackwater dive is, you have no business lecturing him on what his settings should be.

A key reason why you need all the DoF you can get is that your targets are not static.   You're floating in open water and it is floating or swimming in open water, and may respond adversely to the focus light.   This works against full frame sensors, and may force manual focus only.

I suspect also that the images are crops., rather than a full frame composition, for the same reasons.  So TTL is unlikely to do a lick of good.   And for the same reasons, needs all the light possible.

Squid are among the most frustrating targets as they rarely stay still for more than a second or two.   The translucent jellies are more difficult to focus on, but they are more likely to be drifters, or can't move very fast.

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