{"id":340871,"date":"2024-10-19T23:53:20","date_gmt":"2024-10-19T23:53:20","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-27212013\/"},"modified":"2024-10-25T23:04:12","modified_gmt":"2024-10-25T23:04:12","slug":"bs-iso-27212013","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-27212013\/","title":{"rendered":"BS ISO 2721:2013"},"content":{"rendered":"<p>This International Standard specifies the exposure at the focal plane of film-based cameras for values of two exposure parameters, i.e. field luminance and film speed, and also describes methods of evaluating other photometric characteristics, such as the acceptance angles of the photoelectric system.<\/p>\n<p>This International Standard applies to automatic exposure control systems which are built into film-based cameras or coupled with them to regulate the exposure in the focal plane as a function of the several exposure parameters. The mechanism can control either the focal-plane illuminance or the exposure-time interval or both. Pointer (or needle) matching systems are included in this International Standard even though they are not fully automatic. This standard is not applicable to digital cameras.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Introduction  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Section sec_1 <br \/> Section sec_2 <br \/> Section sec_3 <br \/> 1\tScope <br \/> 2\tNormative references <br \/> 3\tTerms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>Section sec_4 <br \/> Section sec_4.1 <br \/> Section sec_4.2 <br \/> Section sec_4.3 <br \/> Section sec_4.3.1 <br \/> Section sec_4.3.2 <br \/> 4\tSpecific requirements <br \/> 4.1\tScales <br \/> 4.2\tOut-of-range indication <br \/> 4.3\tThe sensors of exposure controls  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Section sec_5 <br \/> Section sec_5.1 <br \/> Section sec_5.2 <br \/> Section sec_5.3 <br \/> 5\tCalibration of the exposure controls <br \/> 5.1\tMethod of calibration <br \/> 5.2\tLight source for calibration <br \/> 5.3\tGeneral test conditions  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>Section sec_5.4 <br \/> Section sec_6 <br \/> Section sec_6.1 <br \/> Section sec_6.2 <br \/> 5.4\tExposure in the focal plane <br \/> 6\tAcceptance angles of the photoelectric system <br \/> 6.1\tSpecific acceptance angle <br \/> 6.2\tOblique acceptance angles  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>Annex sec_A <br \/> Annex sec_A.1 <br \/> Annex sec_A.1.1 <br \/> Annex sec_A.1.1.1 <br \/> Annex sec_A.1.1.2 <br \/> Annex\u00a0A<br \/>\n(normative)<\/p>\n<p>Measurement of light exposure in the focal plane and calibration of measuring instrument  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>Annex sec_A.1.1.3 <br \/> Annex sec_A.1.2 <br \/> Annex sec_A.2 <br \/> Annex sec_A.2.1  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>Annex sec_A.2.2 <br \/> Table tab_c <br \/> Figure fig_A.1  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Annex sec_B <br \/> Table tab_B.1 <br \/> Annex\u00a0B<br \/>\n(normative)<\/p>\n<p>Size of measuring area  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>Annex sec_C <br \/> Annex sec_C.1 <br \/> Annex sec_C.2 <br \/> Annex sec_C.3 <br \/> Annex sec_C.4 <br \/> Annex sec_C.5 <br \/> Annex\u00a0C<br \/>\n(normative)<\/p>\n<p>Performance test  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Annex sec_C.6 <br \/> Annex sec_C.7 <br \/> Annex sec_C.8 <br \/> Annex sec_C.9  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Reference ref_1 <br \/> Reference ref_2 <br \/> Reference ref_3 <br \/> Reference ref_4 <br \/> Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Photography. Film-based cameras. Automatic controls of exposure<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2013<\/td>\n<td>22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":340872,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[713,2641],"product_tag":[],"class_list":{"0":"post-340871","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-37-040-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/340871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/340872"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=340871"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=340871"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=340871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}