The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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these cameras will be used in connection with an ordinary tripod stand, so as to allow of the most careful adjustment and focussing. It is important to use the stand when practicable, especially with the higher power telephotographic adjustments, and the stand should be as steady as.possible. A bag filled with earth or stones, and suspended by a string from the tripod head, so that the bag just grazes the ground, is a great help towards steadi-ness, the bag and string only adding a trifle to the weight to be carried.
The various expedients to be adopted in photographing animals are to be learned by experience, and by studying the suggestions of those who have written on the subject. We here give a few notes, together with references. Mr. Douglas English treats mainly of photographing animals in captivity {Journal of the Royal Photographic Society, Nov. 30th, 1901, pp. 375 - 378; and in a book, " Photography for Naturalists," 152 pages, price 5s., published by Iliffe & Sons). Mr. English's instructions for dealing with small mammals which, like weasels and land rats, are both wild and vicious, may often prove useful if followed, or suggestive if taken as a basis for action. The above-mentioned gentleman says: - "A large packing-case is supported at a con-venient height from the ground. It is lined - sides, ends and bottom - with neutral tinted plaster of Paris. The corners are rounded off with the plaster of Paris, so that the interior, looking downwards, is elliptical. The object of this precaution is to prevent the awkward line of junction between sides and ends appearing in the photographs. Through each end of the box an aperture is cut, rather more than large enough to admit the lens. Each aperture is covered with a piece of indiarubber, having a slit in it wide enough to pass the lens through, and yet narrow enough to grip it tightly round the mount. We have thus an arrangement by which the lens can be pointed to almost any position of the interior of the box, without the risk of tearing it from the camera by a sudden strain. The box is filled to a con-venient height with earth, plants, and such like. Two heavy pieces of glass resting on the top of the box form the lid; a third piece of glass of the exact width of the box interior is kept close at hand. The insertion of the latter between the two lid pieces provides us with a simple method of curtailing the space avail-able for the animal to move in."