Tommy Madsen of Logmar camera has sent me the exact Super 8 frame dimensions for the Logmar camera. I wish to compliment this camera with appropriate anamorphic systems to output both classic Cinemascope 2.40:1 and 16:9 (1.78:1) aspect ratios. The Super 8 frame spec is from http://www.gcmstudio.com/filmspecs/filmspecs.html
Logmar Super-8 frame dimensions:
1. Camera aperture size (H x W): 4.20 x 6.30mm
2. Frame area: 26.46sq. mm
3. Aspect ratio: 1.5:1
The Logmar camera gate represents approximately an 11 % increase in imaging area over the standard Super 8 1.33:1 frame. It's slightly more rectangular 1.5:1 frame approaches the classic aspect ratio of 16:9 (1.78:1). I have applied various anamorphic compression ratios as listed on this great Super 8 anamorphic adapter/lens page which provides a comprehensive listing of commonly available adapter/optics, i.e. http://super8wiki.com/index.php/Anamorphic_Lenses. This 1.5:1 frame spec will result in the following non-standard anamorphic widescreen aspect ratios, i.e.
1. Logmar 1.5:1 x 1.33x compression = 2.00:1
2. Logmar 1.5:1 x 1.42x compression = 2.13:1
3. Logmar 1.5:1 x 1.5x compression = 2.25:1
4. Logmar 1.5:1 x 1.75x compression = 2.63:1
5. Logmar 1.5:1 x 1.77x compression = 2.66:1
6. Logmar 1.5:1 x 1.9x compression = 2.85:1
7. Logmar 1.5:1 x 2.0x compression = 3.00:1
What is interesting to me is that the classic 1.75x and 2.0x compression ratios may intercut with my two larger UltraPan8 formats. i.e.
1. UltraPan8 2.8 R8: frame dimensions = 3.75 x 10.54mm (frame area = 39.53sq. mm) w/ aspect ratio = 2.8:1
2. UltraPan8 3.1 DS8: frame dimensions = 4.22 x 13.00mm (frame area = 54.86sq.mm) w/ aspect ratio = 3.1:1
I am looking forward to exploring the impact of the Logmar's Latham loop, digital motors and pin registered gate relative to the Bolex's pressure pad.
