Steven Tribe
30-Sep-2016, 02:03
These are quite expensive to purchase - I have seen them around 300 usd recently.
Perhaps we could write up the on-line catalogues we come across? It is often just a case of checking focal lengths so ownership is hardly necessary! Cameraeccentric is not a great help. I do know there is a single fairly good source of data in France - the name escapes me to-day.
This one is from 1860 for Derogy. Most the catalogue is filled up with "uninteresting" items, but does include basic details of lenses produced and sizes. You can enter from the postage stamp images or use the table of contents.
http://cnum.cnam.fr/CGI/redirv.cgi?M9871
I'll post more if/when I find them.
The source (General) in france is c/o Sylvain Halgand at
http://www.collection-appareils.fr/phpBB3/index.php?sid=0057be6f48dc558a87e714ba695f8ceb
And an 1846 catalogue from Lerebours & Secretan showing the limited lens products!
http://cnum.cnam.fr/CGI/fpage.cgi?M9912_2/4/100/40/0/0
Perhaps we could write up the on-line catalogues we come across? It is often just a case of checking focal lengths so ownership is hardly necessary! Cameraeccentric is not a great help. I do know there is a single fairly good source of data in France - the name escapes me to-day.
This one is from 1860 for Derogy. Most the catalogue is filled up with "uninteresting" items, but does include basic details of lenses produced and sizes. You can enter from the postage stamp images or use the table of contents.
http://cnum.cnam.fr/CGI/redirv.cgi?M9871
I'll post more if/when I find them.
The source (General) in france is c/o Sylvain Halgand at
http://www.collection-appareils.fr/phpBB3/index.php?sid=0057be6f48dc558a87e714ba695f8ceb
And an 1846 catalogue from Lerebours & Secretan showing the limited lens products!
http://cnum.cnam.fr/CGI/fpage.cgi?M9912_2/4/100/40/0/0