http://www.sprocketschool.org/w/index.php?action=history&feed=atom&title=Talk%3AInspection 2026-05-06T06:57:52Z Revision history for this page on the wiki MediaWiki 1.43.1 http://www.sprocketschool.org/w/index.php?title=Talk:Inspection&diff=2940&oldid=prev 2019-10-01T04:33:15Z

<p>Orientation notes</p> <p><b>New page</b></p><div>The discussion of orientation is incorrect. For positive prints, A-wind vs. B-wind refers to whether the emulsion faces the lamphouse during projection. A-wind is the typical orientation with the emulsion facing the lamp, while B-wind would be reversal film where the emulsion faces the lens.<br /> <br /> For 35mm projection, SMPTE RP 39 calls for winding emulsion-in at all times for 35mm release prints. Some projectionists don&#039;t agree with this standard because the testing was done with triacetate and was not repeated with polyester, but the same projectionists often don&#039;t wind triacetate emulsion-in, and emulsion-in remains the SMPTE recommended practice for all bases.<br /> <br /> Some projectors (ex., many with enclosed magazines) cannot safely run film heads-out emulsion-in, although in some cases an extra roller can be installed to allow safe emulsion-in winds. See page 8 in the 1975 edition of the Century SA manual:<br /> <br /> http://www.film-tech.com/warehouse/manuals/CENSAINST.pdf</div>

JesseCrooks