Comments on: Make a Daguerreotype: Exposure Guidelines

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Comments on: Make a Daguerreotype: Exposure Guidelines http://www.shinyphotos.com/2006/11/22/make-a-daguerreotype-exposure-guidelines/ The Daguerreotype: The Mirror with a Memory as practiced by a living human being Fri, 21 Nov 2008 14:00:15 +0000 http://wordpress.org/?v=2.5.1 By: Jonathan http://www.shinyphotos.com/2006/11/22/make-a-daguerreotype-exposure-guidelines/#comment-69 Jonathan Thu, 30 Nov 2006 21:12:58 +0000 http://www.shinyphotos.com/2006/11/22/make-a-daguerreotype-exposure-guidelines/#comment-69 I think that it's more that I had a problem with both the old and new processes. The new process is vastly superior AND the old process was woefully insufficient. The new process involves me buffing with red rouge on a stitched wheel then with blue compound on an unstitched wheel, and then hand polishing on a velvet board with black ferric oxide powder. It seems that the shinier the plate is, the faster it is overall. I should also remind that mine are Becquerel-process dags and are far slower than bromoiodide sensitized daguerreotypes that are developed over mercury. I think that it’s more that I had a problem with both the old and new processes. The new process is vastly superior AND the old process was woefully insufficient.

The new process involves me buffing with red rouge on a stitched wheel then with blue compound on an unstitched wheel, and then hand polishing on a velvet board with black ferric oxide powder. It seems that the shinier the plate is, the faster it is overall.

I should also remind that mine are Becquerel-process dags and are far slower than bromoiodide sensitized daguerreotypes that are developed over mercury.

]]> By: Michelle http://www.shinyphotos.com/2006/11/22/make-a-daguerreotype-exposure-guidelines/#comment-68 Michelle Thu, 30 Nov 2006 20:22:57 +0000 http://www.shinyphotos.com/2006/11/22/make-a-daguerreotype-exposure-guidelines/#comment-68 What is your new polishing technique versus your old one that has increased the exposure by almost 2 stops, that is a lot of time at f/6.3 on a Dag. What is your new polishing technique versus your old one that has increased the exposure by almost 2 stops, that is a lot of time at f/6.3 on a Dag.

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