ISO INTERNATIONAL STANDARD 18844 First edition 2017-05 Photography Digital cameras : Image flare measurement Photographie - Caméras numériques - Mesurage de I'éclat d'image Reference number IS0 18844:2017(E) International Organization for Standardization see=ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02017 vided by IHS under I Not for Resale, 2017/8/21 02:16:36 No reproduction or networking permitted without license from IHS IS0 18844:2017(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinir DrganizationforStandardization icensee-ZHEJIANG INSTOF STANDARDIZAoISQ 07 - All rights reserved No reproduction or networking permited without license from IHS IS0 18844:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions ..1 4 Measurement chart and method. .2 4.1 Conditions of shooting .2 4.1.1 Arrangement of measuring equipment .2 4.1.2 Conditions of shooting 3 4.2 Charts. .3 4.2.1 General 3 4.2.2 Charts for single spot measurement 4 4.2.3 Charts for multiple spot measurement 4 4.3 Measurement procedure. .5 4.3.1 General. .5 4.3.2 Calculation of luma and luminance. .5 4.3.3 Areas used for calculation of luma and luminance 4.3.4 Measurement types. .7 5 Presentation of results .9 Annex A (informative) Examples of reporting .11 Bibliography ..12 ii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 without license from IHS