On April 19, 2017, 11:44 AM I wrote something wrong about the Eumig P 8, namely that it’s got a light-dark ratio of three to one. That is not correct, it is less and other projector models feature a higher ratio. I’m still busy investigating the matter but have found two candidates that excel, the Ampro A-8 and the Ciné-Kodak Showtime 8. To verify exactly I recently purchased an Ampro and want to buy a Kodak, too. Only with the hard facts in front of me, I mean the very shutters under the protractor, something valuable can be said.
The Eumig P 8 has a shutter 105 degrees wide to cover a transport phase of about 90 degrees. The light portion measures thus 255 degrees per cycle giving a light-dark ratio of 2.42:1. If the Ampro matches the patent drawing, its light-dark ratio approaches 2.63:1. The Showtime, from what I’ve found on images and videos, seems to be still nearer to 3:1. There are more projectors of great light output, I’m thinking of the Paillard-Bolex M 8 as well as the old Bell & Howell Filmo 8s. The EMEL-P 73, later named Miami and Star, has 2:1. One of the weakest is the GIC-Beaulieu 8 that lies below 1:1.
I’m sorry to annoy everybody with my technicality.
The Eumig P 8 has a shutter 105 degrees wide to cover a transport phase of about 90 degrees. The light portion measures thus 255 degrees per cycle giving a light-dark ratio of 2.42:1. If the Ampro matches the patent drawing, its light-dark ratio approaches 2.63:1. The Showtime, from what I’ve found on images and videos, seems to be still nearer to 3:1. There are more projectors of great light output, I’m thinking of the Paillard-Bolex M 8 as well as the old Bell & Howell Filmo 8s. The EMEL-P 73, later named Miami and Star, has 2:1. One of the weakest is the GIC-Beaulieu 8 that lies below 1:1.
I’m sorry to annoy everybody with my technicality.
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