The 'front' does not seem original to me - might be a Frankenstein lens....
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The 'front' does not seem original to me - might be a Frankenstein lens....
Hermagis 10981 was sold for 850€ (plus 9% auction fees).
It looks exactly right to me as the standard "double-ender"!
The given focal length is a worry, though!
Might be interesting to ad to the database just for completeness sake: an advertisement with just the barrel of nr. 13002 - all lenses are missing.
https://i.ebayimg.com/images/g/GsUAA...GX/s-l1600.jpg
The new owner says it is the no.5 Universelle Portrait with 81mm diameter glass and a measured focal length of 320mm!Quote:
Originally Posted by Steven Tribe
Lens edge date was 1874 which is obviously too late for this brass engraved serial number! Marking is correct so the glass lenses must be a replacement from 1874. The cells were in disarray!
Added now to the list (Posting #68).
Hermagis Petzval lens with WHS #15838 and I think it is a 180mm focal lens with f/3.5
EIDOSCOPE 1:4.5 No.2
HERMAGIS PARIS
236798
Hugo's 15938 has been noted.
I havn't been adding the "modern" Hermagis numbers for some time. Unless I am mistaken, these all have lens marks with 2 digits, like "21" for 1921.
The real challenge is to get an idea of the distribution of production over time and the likely "birthdates" of lens without serial numbers or with serial numbers, before lens writing was started.
In addition, of course, to give lens which have lost pencil marks, an age due to proximity of serial number to other known lenses.
Hi Steven, Are you implying my copy of Eidoscope is a "modern" Hermagis? Did Hermagis changed the optical formula for "modern" Eidoscope? My copy does not have the 2 digits. Thanks.
There was no change in the optical design - but the ownership of Hermagis was a bit in doubt around your serial number!
Hermagis had become Hermagis, P.Guillaume & Co. from around 1925 until 1934 when there was a fusion with SOM Berthiot making a large company with Berthiot as the dominant partner! For the first few years, the name Hermagis was continued.
The time scale of Hermagis serial numbers is shown below. Your number is probably from the following year 1935. Later lenses marked SOM Hermagis are believed to have adopted the Berthiot serial number sequence.
The extracts are from the Pont et Princelle booklet on Hermagis from 2009.
Recently picked up two Hermagis portrait lens, both are Petzval type.
SN 17659: (225-Ross-78) in 1878?
SN 18286: (R-21-15-80) in 1880?