https://www.holographyforum.org/w/index.php?title=Ewesly_/_Holographic_Formulae_/_LN-7,_Nick%27s_No._7&feed=atom&action=historyEwesly / Holographic Formulae / LN-7, Nick's No. 7 - Revision history2024-03-29T02:03:24ZRevision history for this page on the wikiMediaWiki 1.31.0https://www.holographyforum.org/w/index.php?title=Ewesly_/_Holographic_Formulae_/_LN-7,_Nick%27s_No._7&diff=2357&oldid=prevJsfisher: Jsfisher moved page Ewesly / Holographic Formulae / LN-7, Nick's to Ewesly / Holographic Formulae / LN-7, Nick's No. 7 without leaving a redirect2014-01-02T00:20:11Z<p>Jsfisher moved page <a href="/w/index.php?title=Ewesly_/_Holographic_Formulae_/_LN-7,_Nick%27s&action=edit&redlink=1" class="new" title="Ewesly / Holographic Formulae / LN-7, Nick's (page does not exist)">Ewesly / Holographic Formulae / LN-7, Nick's</a> to <a href="/wiki/Ewesly_/_Holographic_Formulae_/_LN-7,_Nick%27s_No._7" title="Ewesly / Holographic Formulae / LN-7, Nick's No. 7">Ewesly / Holographic Formulae / LN-7, Nick's No. 7</a> without leaving a redirect</p>
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<td colspan="1" style="background-color: #fff; color: #222; text-align: center;">Revision as of 00:20, 2 January 2014</td>
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</td></tr></table>Jsfisherhttps://www.holographyforum.org/w/index.php?title=Ewesly_/_Holographic_Formulae_/_LN-7,_Nick%27s_No._7&diff=2353&oldid=prevJsfisher: Created page with "== Stock Solution == ''Lucky Number 7'' <p>30 g Sodium Sulfite<br /> 10 g Ascorbic Acid<br /> 2 g Chlorohydroquinone<br /> 5 g Potas..."2014-01-02T00:06:03Z<p>Created page with "== Stock Solution == ''Lucky Number 7'' <p>30 g Sodium Sulfite<br /> 10 g Ascorbic Acid<br /> 2 g Chlorohydroquinone<br /> 5 g Potas..."</p>
<p><b>New page</b></p><div>== Stock Solution ==<br />
''Lucky Number 7''<br />
<br />
<p>30 g&nbsp; Sodium Sulfite<br /><br />
10 g&nbsp; Ascorbic Acid<br /><br />
&nbsp;2 g&nbsp; Chlorohydroquinone<br /><br />
&nbsp;5 g&nbsp; Potassium Bromide<br /><br />
10 g&nbsp; Sodium Metaborate (Kodalk)<br /><br />
60 g&nbsp; Sodium Carbonate (Anhydrous)<br /><br />
One litre water</p><br />
<br />
=== Developing time === <br />
Three to four minutes for all materials.<br />
<p><u>Temperature:</u>&nbsp; 22C +- 1C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <u>Agitation:</u>&nbsp; Constant</p><br />
<br />
=== Shelf life ===<br />
Probably about a month.<br />
<p>The first developer encountered which gave a better signal to noise ratio than CWC2, but with the same brightness.&nbsp; It doesn't seem to work with Agfa film, but gives the best possible results on plates.&nbsp; It was the main developer for true-color holography at Lake Forest College circa 1990.&nbsp; A properly exposed plate will sit in this soup for thirty seconds before any density starts to appear.&nbsp; It will last all day in a tray, about one week in a full stoppered bottle. </p><br />
<br />
== Source ==<br />
[[Media:NickWorkhorse.PDF | Nicholas J. Phillips, "The Silver Halides - the Workhorse of the Holography Business", Proceedings of the International Symposium on Display Holography, Volume III, 1988, p.35]].<br />
<p>I dubbed this soup LN-7 as it was the seventh formula he had published in that paper, and it seemed to lower the noise compared to other developers thanks to the addition of the potassium bromide restrainer, hence Low Noise or Lucky Number 7.</p></div>Jsfisher