JB/T 9426.6-2011Motion picture camera lenses - Part 6: Methods for determining performance of motion picture camera lenses (English PDF)

1 Foreword

JB/T 9426.6-2011 was issued by MIIT on 20 December 2011 and has been in force since 1 April 2012.

It is one of 6 parts of the JB/T 9426 series.

2 Scope

This standard is the sixth part of a recommended Chinese machinery industry standard on motion picture camera lenses, and it holds the methods for determining their various performance characteristics, together with the terms and definitions that go with them. The lenses it applies to are the cinematography lenses specified in JB/T 9426.1, which is itself among the standards the part quotes, along with GB/T 4635, GB/T 4642 and JB/T 8248.1-1999. The part is classified N43 in the Chinese scheme and 37.060.10 in the international one.

3 Normative references

JB/T 9426.6-2011 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 4635

GB/T 4642

JB/T 8248.1-1999 — Camera lenses - Measurement method for spectral transmittance

JB/T 9426.1

4 About this standard

Issued by: MIIT

English translation: about 15 pages

5 Related standards

Other parts of this standard:

JB/T 9426.1-2011 — Lens for motion picture camera - Part 1: Fixed focal length and zoom lens for motion picture camera

JB/T 9426.2-2011 — Lens for motion picture camera - Part 2: Series of motion picture camera Lenses

JB/T 9426.3-2011 — Lenses for motion picture camera - Part 3: Distance and aperture scale markings

JB/T 9426.4-2011 — Lenses for motion picture camera - Part 4: Bayonet lens mount (type I) for 35mm motion picture camera lens

JB/T 9426.5-2011 — Lenses for motion picture camera - Part 5: Threaded lens mount (type C) for 16mm motion picture camera lens

6 Classification and status

International classification (ICS): 37.060.10

Prefix JB/T: recommended standard.