ISO INTERNATIONAL STANDARD 10505 First edition 2009-05-15 Photography Root mean square granularity of photographic fiims Method of measurement Photographie -Moyenne quadratique granulaire de films photographiques - Méthode de mesure Reference number ISO 10505:2009(E) @ ISO 2009 oyIHSunder Not for Resale ISO 10505:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT @ ISO2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or Iso's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO2009-All rightsreserved I without license from IHS Not for Resale ISO 10505:2009(E) Contents Page Foreword.. iv Introduction. 1 Scope 2 Normative references . 3 Termsanddefinitions.. 4 Measurement instrument.... 4.1 4.2 Microdensitometer..... 4.3 Spectral products . 4.4 Spatial frequency response 4.5 Scanning motion... Instrument electronics 5.1 Conversion to density .. 8 5.2 Temporal frequency response of the instrument. 5.3 Instrument noise ... 6 Diffuse rms-granularity .... 6.1 Optical geometry..... 8 6.2 Diffuse conversion factor g.... 9 7 Preparation of specimens... 9 7.1 Sampling and storage ... 9 7.2 10 7.3 Processing... 10 7.4 Specimen uniformity ... 10 7.5 Sampled area.... 10 8 Operation of the measurement instrument. 10 8.1 Positioning the specimen ... 10 8.2 Specimen scanning ... 10 8.3 Controloffocus 10 8.4 Rate of scan.. 71 8.5 Density mode 11 9 Method oftest 1 9.1 11 9.2 Statistical background . 9.3 Construction of the median estimator and the 95 % confidence intervals.. 12 9.4 Instrument noise ... 13 9.5 14 9.6 Uncertainty of the rms-granularity result.... 14 9.7 Reporting results .. 14 9.8 Summary of rms-granularity characterization parameters 15 Annex A (informative) Typical viewing magnifications for critical naked-eye viewing .... .16 Annex B (informative) Limiting the temporal frequency response of the measuring instrument... 18 Annex C (informative) The effects of specimen non-uniformity.... Annex D (informative) Derived constants c for subgroup sizes 10, 20, ..., 200.... 21 Annex E (informative) Determination of sample size for specified precision and subgroup size.... . 22 Bibliography CopyrightIntenatinalOrganizationandardizalioghtsreserved ili se from IHS Not for Resale