. Bird lore . J UNCO The entire contact scale is covered, before it is used, with a box having acovering of bark, the twig only projecting. The release of the snapshot shutter differs with the different cameras, sothat the electrical release must be adapted to the camera used. The shutter ofa Graflex is released with a button. If an angle iron is taken, one arm receivesa knob which can press the button of the camera, the other arm, which isplaced so that it rests about to of an inch above the electro-magnet, is balancedso that a slight added pressure is sufficient to release the shutter. Tliis
. Bird lore . J UNCO The entire contact scale is covered, before it is used, with a box having acovering of bark, the twig only projecting. The release of the snapshot shutter differs with the different cameras, sothat the electrical release must be adapted to the camera used. The shutter ofa Graflex is released with a button. If an angle iron is taken, one arm receivesa knob which can press the button of the camera, the other arm, which isplaced so that it rests about to of an inch above the electro-magnet, is balancedso that a slight added pressure is sufficient to release the shutter. Tliis is re-ceived from the magnet. When the bird is sitting on the twig, it closes the. MYRTLE WARBLER—WINTER PLUMAGE 346 Bird - Lore circuit, draws the angle iron downward, and the knob, pressing against thebutton of the shutter, releases it, and the picture is taken. It is absolutely unnecessary to hide or cover up the entire apparatus; thebirds do not take any notice of the whole affair whatsoever. He who desires to take pictures near bird-baths or bird food-houses willdo well to introduce a bell into the circuit which will ring when a picture hasbeen taken. Then it is only necessary to change the plate in order to be readyfor the next photograph. But under these circumstances the wires must be ledinto the house. It is also very convenient to introduce a push-button. Now thecircuit can only be closed when both the button is pressed and the bird is sittingon the branch. Therefore, it is in the hand of the observer to take only thosebirds which he desires to take. With this the pictured birds will always havedetail, as the twig is only an inch or two in length and the
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Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, booksubjectorn
