Early lenses used for landscape photography

I'm in the process of adding a few details to a paper about early landscape practice and wish to find more information about usage of the newer developments in the optics/lenses used by landscape photographers. I've found in Talbot's correspondence (thanks for such a fantastic resource, Dr. Schaaf) a letter from Chevalier of Paris concerning a lens request which claimed "...for all my combined glass objectives can be used for portraits and landscapes" [Talbot later ordered a 12 inch focal length... not a super-wide angle by today's standards, but pretty close to many modern photographer's focal length choices for landscapes in 8x10 (10x8 in the UK!).] Does anyone have references to the lenses used by landscape photographers working from 1840-1855? thanks in advance

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