
Originally Posted by
Ivan Rose
Right to reply, as it were. Ivan Rose (Britain) co-author with Corrado D'Agostini (Italy).
I have a 40 year interest in photographic lenses. My grandfather bought a new Dallmeyer lensed camera in the 1950s, which I still have, so this company has always intrigued me.
For a short period while collecting lenses I was very lucky in finding several examples from the first years of Dallmeyer, pre-archive. So continuing the work of the late Sean MacKenna (Dallmeyer on-line archive) was s logical project. This led to some intriguing revelations as to how J. H. Dallmeyer started his company, but also how well respected he became within his life, despite some turbulent periods within that life. Finding evidence of the mansion Dallmeyer had built for his second wife and children, plus servants, a lodge for the coachman and his family the same for the gardener and his family, was a very pleasant find and gave an idea as to his lifestyle at the end of his life. The Dallmeyer household takes a complete page of the 1881 census. His address was ''Sunny Field House'', Childs' Hill, Hendon. Dallmeyer was a ''Naturalised British Subject'' by this date.
After hearing of Corrado's project for a Great Britain lens book, I offered him my information on early Dallmeyer, plus the Aldis designs for Dallmeyer, along with many examples of Ross and Ross/Zeiss production. The TT&H research took place while writing the book, again revealing an interesting story regarding the introduction of the 'Cooke' range of lenses.
Yes there are problems with the setting of the text, the spacing is not ideal and not as the original 'word' documents. We had to much text for the space.
The choice of makers would always be difficult. It came down to who made, or was interested in making a contribution to the advance of photography in the period 1840 - 1865.
Ross and Dallmeyer were the biggest British companies during the 19th century, both having strong world wide export connections. Horne and Thornthwaite were one of the earliest companies to supply complete outfits during the 1840s, during the 1850s they produced an excellent range of wet-plate camera. Grubb saw photographic lens making as a good addition to his telescope business and had a genuine interest in improving the design of the landscape lens. TT&H made the first steps in Britain to a much higher degree of precision in lens manufacture. Along with their work with H. Dennis Taylor of the Thomas Cooke telescope company of York, pulled British optics into the new 20th century.
The smaller makers, again there was a problem with space. Many of the small makers, and some were very small, imported the glass elements from France, just the barrel was made by them. There were two companies who started in a small way during the 1880s but became more important in the 20th century, Beck and Wray, Aldis started after 1900.
During the 19th century professional photographers, 'Art' photographers and lens makers would attend meetings at places like the Photographic Society of London (later the RPS) to exchange ideas. Studio photographers did not necessarily want a 'perfect' lens, the initial introduction of 'soft focus' into the design of a lens was one example of this exchange of ideas between the lens user and the lens maker, the request came from working photographers. Andrew Ross, Sutton, Grubb, Dallmeyer and later Thomas Ross and Thomas Dallmeyer would all debate lens design at great length (specific details of any new design would not be revealed for obvious reasons).
There has to be a strong tie between telescope and lens making especially in the 19th century, Andrew Ross was a microscope and telescope maker, he wanted Dallmeyer to become the premier British telescope maker after his death (Dallmeyer had other aims). Each discipline learns from the other, the degree of colour correction improved during this period, this increased the definition considerably within each type of lens. There is another factor, photographic lens making was only seen as a 'second string' or subsidiary line for the companies until the early 1860s, production of lenses by modern standards was incredibly small.
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