From: tmiller11147@verizon.net   
      
   "Phil Hobbs"  wrote in message   
   news:54348A75.2090401@electrooptical.net...   
   > On 10/7/2014 8:19 PM, ggherold@gmail.com wrote:   
   >> On Tuesday, October 7, 2014 3:03:37 PM UTC-4, Phil Hobbs wrote:   
   >>> On 10/07/2014 01:30 PM, Glen Walpert wrote:   
   >>>   
   >>>> On Mon, 06 Oct 2014 23:08:01 -0400, Phil Hobbs wrote:   
   >>>   
   >>>>   
   >>    
   >>>> Out of curiosity I did a quick check and found that Tri-X is still   
   >>>> available, possibly Plus-X also, old stock in both cases.  A search   
   >>>> will   
   >>>> turn up the Kodak data sheets with density curves showing about 0.3 to   
   >>>> better than 2.3 available with exposure and processing per the data   
   >>>> sheet.  Density range of both films is about the same, possibly the   
   >>>> smaller grain size of Plus-X or some other film would be advantageous.   
   >>>   
   >>>>   
   >>>> Cheers,   
   >>>>   
   >>>> Glen   
   >>>   
   >>>>   
   >>>   
   >>> The newer stuff is called Tmax.   
   >> Back in my mis-spent youth, we had a dark room and I did some BW   
   >> developing.   
   >> But no more stinky chemicals for me.   
   >> Could I do an exposure, and have someone turn it into a negative with   
   >> controllable properties? No automatic gain control in the development   
   >> process. (ND between 0.3-0.5)   
   >>   
   >> George H.   
   >   
   > Dunno.  I used to process my own film too (b&w prints and colour slides),   
   > but not since about 1980ish.   
   >   
   > I'm looking at sun-sensor eyeglass plastic for instrument applications.   
   >   
   > Cheers   
   >   
   > Phil Hobbs   
   >   
   >   
   > --   
      
   You might go to a place that installs window tinting and ask to see their   
   stock. They also will have a densitometer to read the tint material. There   
   are many shades of neutral density filters.   
      
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