Super 8 crop factor

[Chris Burke]

Is the crop factor 5? As compared

to full frame still photography.

[Michael Lehnert]

Almost 5.

 

The focal length multiplier from Super 8 (diag_{Super8 [1:1.33]} = 7 mm) to Full Frame 35 (diag_24x36 = 43.3 mm) is actually x 6.19

 

Or x 0.16 the other way round.

[David Mullen ASC]

Just compare the dimensions -- if you want to compare horizontal field of view, Super-8 is 5.79mm wide and Full-Frame is 36mm wide, so that's a 6.2X crop factor (36 ÷ 5.79).

[Chris Burke]

Thanks. That explains why 7mm focal length doesn't seem that wide on S8

[Michael Lehnert]

6mm would be the ideal wide angle for Super 8. The top production cameras by Beaulieu, Leitz, Bauer, and Nizo have that as the shortest focal length of their built-in or interchangeable vario lenses.

 

A 5mm prime, or indeed a 6mm or 7mm vario setting on any lens with the Schneider Kreuznach Superwide / Ultrawide Lens Type I/II/III or Type Nizo attached would get you down to 4.5mm - 5mm. But you would have to expect distortion in your shots that may be unacceptable if you don't look for that kind of aesthetic on purpose.

 

[Andries Molenaar]

 

A 5mm prime, or indeed a 6mm or 7mm vario setting on any lens with the Schneider Kreuznach Superwide / Ultrawide Lens Type I/II/III or Type Nizo attached would get you down to 4.5mm - 5mm. But you would have to expect distortion in your shots that may be unacceptable if you don't look for that kind of aesthetic on purpose.

 

 

The Schneider UWL definitely does not fit/work with any lens. Oddly enough it mostly goes well with the Schneider zoom lenses :) Other types are better cross-checked before buying one.

Edited October 24, 2016 by Andries Molenaar

[Michael Lehnert]

Huh? Any lens with such a working wide angle lens attached will go from 6-7mm down to 4.5-5mm. The laws of optics are usually brand-agnostic :rolleyes: . To pick the right working configuration is frankly self-evident, isn't it?