Popular science monthly . press-ing the le\er atthe top of the Details of a Remarkable Motion-Picture Camera PULL ANDROD LEAOITO OUTSOF CAME The Film Cutter Ciirl Five features distinguishCarl Akeleys camerafrom all existing appa-ratus. The film cuttershown at the right is usedto cut a hole in the filmto indicate to the de-veloper when a given series hascome to an end. The hole isalso used as an aperturethrough which the operator canstop the machine, puncture thefilm, and then focus to a deadaccuracy on a groimd , when the film isdeveloped the perforation noti-fies the operat
Popular science monthly . press-ing the le\er atthe top of the Details of a Remarkable Motion-Picture Camera PULL ANDROD LEAOITO OUTSOF CAME The Film Cutter Ciirl Five features distinguishCarl Akeleys camerafrom all existing appa-ratus. The film cuttershown at the right is usedto cut a hole in the filmto indicate to the de-veloper when a given series hascome to an end. The hole isalso used as an aperturethrough which the operator canstop the machine, puncture thefilm, and then focus to a deadaccuracy on a groimd , when the film isdeveloped the perforation noti-fies the operator exactly wherethe stop was made. The cutteris actuated by a pull and pushrod leading to the outside of thecamera. One push of the rodcuts a hole in the film and bringsthe ground glass into eye-piece attached to thefilm cutter enables the operatorto locate the image on theground glass and regulate thefocussing and diaphragm dials Akeleys Woiulefliilliivriiliuu BLACK VELVETRIM TO FIT •EYE ^APEtnuRE EYE PIECE. THE FILM CUTTER ANDGROUND GLASS PLATE Seeing theImage The eye-piece, asshown above,enables the photog-rapher to see the actual imagebeing recorded on the negative—sometliing hitherto unheard consists of a square metal boxwith a sliding end fitted with alight-proof, black velvet rim forthe eye. A spring which serves tolift the eye-piece up and whichcloses the finding aperture bya metal stop at the same time,is pressed down when the eyerests against the rim. This givesthe photographer an unobstruc-ted view of the image falling onthe negative ^ECONQWr•SHELL
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
