JB/T 7474.3-2014Automatic Camera Technology Conditions - Part 3: Automatic Film Winding and Film Rewinding (English PDF)

1 Foreword

JB/T 7474.3-2014 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 6 May 2014 and has been in force since 1 October 2014.

It is one of 6 parts of the JB/T 7474 series.

2 Scope

This standard is the third part of a recommended Chinese machinery industry standard on the technical conditions for automatic cameras, and it concerns automatic film winding and rewinding. It classifies the types of automatic winding and rewinding mechanism, sets the technical conditions they must satisfy and describes the methods used to test them. It is intended for 35 mm viewfinder cameras of the small consumer type that have an automatic winding and rewinding function. It refers to GB/T 8897.2, GB/T 9185 and GB/T 10047.1-2005. It supersedes JB/T 7474.3-1994.

3 Normative references

JB/T 7474.3-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 8897.2

GB/T 9185

GB/T 10047.1-2005

4 About this standard

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

English translation: about 15 pages

5 Related standards

Other parts of this standard:

JB/T 7474.1-1994 — Cameras - Built-in flash - Technical specifications

JB/T 7474.1-2016 — Technical requirements for automatic cameras - Part 1: Built-in flash

JB/T 7474.2-2014 — Part 2: DX Check Code

JB/T 7474.4-1994 — Cameras - Automatic focusing - Technical specifications

JB/T 7474.4-2014 — Part 4: Automatic Focusing

6 Classification and status

International classification (ICS): 37.040.10

Chinese Standard Classification (CCS): N 46

Prefix JB/T: recommended standard.