Because cameraman wants to be close to adequately,be photographed content, keep one's eyes peeled is very important. This photograph was revealed perfect, very of environmental protection small be apart from film skill. Cameraman is in good neuter flotage position, when operating camera, hold dead coralline with two finger needle only one part will prop up the body.

Small be apart from photography

Underwater is small be apart from photography to be told from technical angle is not very difficult. What what I hope is we have TTL technology, measure light as eating a pie euqally easy. And, onshore is accumulated, what practice and master is small be apart from photography technology, euqally OK also applying is in in water.

Be said here small be apart from photography enlarge fold, it is commonly from 1: 3 to 1: 1. 1: Of 3 delegates is, of the exposure on negative video 3 times smaller than actual object; And 1: 1 expresses negative those who go up is video like actual object size
(that is to say, small be apart from the scale formula that gives out on camera lens, the video size of the negative that the number of colon left represents, the digital delegate of right is photographed actually the size of content. For instance, you use 1: Of 3 small when the fold of the biggest enlarge that is apart from camera lens goes film an actual length the insect of 10mm, the insect is in the video bulk that camera negative perhaps forms on digital sensitization chip is 3mm. And use when you 1: Of 1 small when be apart from camera lens to film, the size with video negative also is 10mm. -- translator) .

To can be in small be apart from film inside limits, we should use a kind of special camera lens and the waterproof lens bucket with its form a complete set. General, small be apart from camera lens from boundless far can close till the biggest enlarge fold anxious. Additional, also can use heading (about the camera lens of 50mm) with photograph union of the photograph that receive annulus nearly. But this kind receives annulus to cannot get off when dive, accordingly, of meeting general camera lens add up to anxious limitation to be inside certain limits.
The tradition is small those who be apart from camera lens is anxious paragraph it is commonly 50 - 60mm. 100/105mm or 180/200mm is anxious paragraph small be apart from camera lens to cannot give you bigger enlarge fold, can let you undertake filming on farther distance however (premise is to be below the circumstance of same magnifying power -- translator is noted) . Be to track film those everywhere when the fish of rock, have very distinct advantage, it is precondition even sometimes.
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