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    Re: Identification help / Gandolfi 8x10"

    Its a straightforward Gandolfi Precision 10" x 8" with a 5" x 4" Reducing Back. I have the same model and backs myself. As far as I can tell most were probably made in the 1940s/50s/60s and many were...
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    Re: Half plate back for Gandolfi

    From what I have read Louis built cameras for a number of businesses and Dallmeyer may have been one of them. I have a Packard shutter also badged Dallmeyer! Your easiest route is to look out for a...
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    Re: Half plate back for Gandolfi

    OK. Firstly, Gandolfis were built to imperial measurements! Yours looks very like mine and if so the overall size of the back will be near enough 8 inches by 8 inches with a 1/4 niche edge 'rebate'...
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    Re: Half plate back for Gandolfi

    Gandolfis vary in dimensions significantly, I have owned quite a few and the only ones which were consistent were the later 10" x 8" cameras as far as I can tell. Your easiest solution is to get one...
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    Re: 1865 Lens Underwater

    Seacam housing. The lens, despite its age, has a near enough Leica screen thread (its Imperial but very close) so its mounted on a focus tube from Leitz New York. Just a flat port and single strobe....
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    1865 Lens Underwater

    3.5" Stereo lens made in 1865 on Sony A7II used underwater (yes, I know, but I have been shooting underwater for ~40 years so it was a bit of fun). Surprisingly...
  7. Re: Dallmeyer archive “R” interpretation in the serial number lists

    Thanks. Well, for a variety of reasons it looks as though the Grubb replacement may well have been 'bespoke' then! As I am discovering, many museum's have rather 'loose' descriptions of their items....
  8. Re: Dallmeyer archive “R” interpretation in the serial number lists

    Great. Thanks. I think that the Dallmeyer was an older lens which they already owned - a replacement lens from Howard Grubb was ordered in 1887 and finally arrived in 1890. I'm trying to find out...
  9. Re: Dallmeyer archive “R” interpretation in the serial number lists

    Looks like ~1872 but the lens I'm trying to find information on is this one: https://collection.maas.museum/object/231103 as I simply want to know its specification! (I've emailed the museum too). I...
  10. Re: Dallmeyer archive “R” interpretation in the serial number lists

    I have been trying to kook up information on lens 20089 which has been stated as being a 6" Portrait lens but keep getting directed to blank pages. Is this normal or am I missing something?
  11. Re: Which lenses did Carleton Watkins use in 1861 for his mammoth plate camera

    Creating metadata the old way was time consuming and apart from location and photographer, often deemed irrelevant!

    Very occasionally I have come across an absolute confirmation about a specific...
  12. Re: Which lenses did Carleton Watkins use in 1861 for his mammoth plate camera

    Thanks. Yes, but no firm evidence of dates. I've done enough research to know that you never assume things. If in doubt check and check again. Most of the 12" x 10" photos by Watkins, when dated, are...
  13. Re: Which lenses did Carleton Watkins use in 1861 for his mammoth plate camera

    That's all good information but does anyone have any source references?
  14. Re: Which lenses did Carleton Watkins use in 1861 for his mammoth plate camera

    I have the book. There is no indication about where this information came from though. As it can't just have appeared, there must be a source and this is what I am trying to find. And why single out...
  15. Re: Which lenses did Carleton Watkins use in 1861 for his mammoth plate camera

    Just reviving this thread. Having tried and failed to pin down exactly where the information about Carleton Watkins using a Grubb C lens comes from, I'm wondering two things.

    1. Did he actually...
  16. Re: UK Lens repair and shutter installation for Cooke Aviar

    Most of our optics makers were absorbed into the Rank Organisation in the '60s, or moved into military and specialist optics design and supply where some of them remain. I would say that the consumer...
  17. Re: UK Lens repair and shutter installation for Cooke Aviar

    You could try: https://www.newtonellis.com. They recently serviced an 1895 TTH lens for me, although you will have to ask whether they can fit a shutter. You could also ask https://skyllaney.com who...
  18. Re: ‘Pure’ Landscape Photography Versus Including the Human Element

    I used to live in North Wales where there are a number of castles built by Edward 1st in the late 13th century. Victorian photos of them show them as crumbling ruins filled with vegetation and...
  19. Re: ‘Pure’ Landscape Photography Versus Including the Human Element

    I would also point out that such places were preserved partially as a reslt of the photographs of them produced by photographers like Carleton Watkins. Yosemite valley was protected as a result in...
  20. Re: ‘Pure’ Landscape Photography Versus Including the Human Element

    Here are two 'landscapes' from where I live. One shows an apparently near untouched scene of an island and shore, the other an almost totally man influenced scene with numerous obvious man made...
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    Stuck together Glass Plates - how to unstick?

    I have been asked to digitise a load of glass plates, mostly 1/4 plate, many from the 1920s. A few are well stuck together and before I have to resort to force, has anyone got any tips on less...
  22. Re: ‘Pure’ Landscape Photography Versus Including the Human Element

    Isn't that what most photographers do? And today's use of Photoshop is simply exacerbating the fantasy aspect of photographic imagery.
  23. Re: ‘Pure’ Landscape Photography Versus Including the Human Element

    What is a 'Pure' landscape? Here in the UK ALL our landscapes are a result of man's intervention. Just because they do not show a clearly obvious element made by man does not mean that the landscape...
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    Re: Need Grubb Lens Expertise

    The dates of the Globe lens would need delving into: https://antiquecameras.net/harrisonglobelens.html and the date of the letter looking at.

    I have no doubt at all that Grubb was producing his...
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    Re: Need Grubb Lens Expertise

    The Grubb Patent Aplanat with the code C had a 3" diameter lens, a 'true focus" of 15" and was advertised as covering from 10” x 8” to 12” x 10”, which could be varied by moving the washer stop...
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    Re: A question for the opticians here.

    I'm sure that this is the case with many of the currently made Internal Focussing macro lenses. I think that most change focal length significantly as they focus closer.
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    Re: When do aspherically ground lenses date from?

    That's the problem. I got interested in the Grubb's and their photographic lenses but it so easy to get sidetracked and I've ended up with many more related questions than I started with. And two...
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    Re: When do aspherically ground lenses date from?

    Thanks. My readng suggests that Thomas Grubb was probably aware of Foucault's test when he built the Great Melbourne Telescope in 1866, but it was his son Howard who used 'a small amount of...
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    Re: When do aspherically ground lenses date from?

    Thanks. I never thought to check on wiki. Next time.
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    A question for the opticians here.

    I have a small 'pillbox' type lens with a doublet and front mounted washer stops. Its performance is much better close up, and even down to 1:1 than it is at infinity. I believe this is probably as a...
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    When do aspherically ground lenses date from?

    I am aware that such lenses were made (for telescope-photographic use using steam powered grinding machines) in late Victorian times, but does anyone know who first came up with the idea and first...
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    Re: Measuring old lens threads

    Which means shipping the lens .....
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    Re: Measuring old lens threads

    Great. Thanks all. Yes SRB are still going but I have a machinist in Scotland who can do the work but its a ferry and 2 1/2 hours away down winding roads and the ferry is, how can I pt it, errr,...
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    Re: Measuring old lens threads

    There are but I'm on an island where there are none and its not so easy to hop onto a ferry at the moment! So its ship lenses or specify threads.
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    Re: Measuring old lens threads

    Many thanks both. I will look more into the measurements methods shown. I'm aware of several flange makers but am trying to avoid sending lenses off, especially abroad where duties can currently be...
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    Re: Measuring old lens threads

    Thanks for that - makes good sense. Fortunately the lenses that I have are all from one maker and are certainly all Whitworth profile threads. I'll look more into the wire idea - I can see that being...
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    Measuring old lens threads

    I have several lenses missing their flanges. I have thread guages and callipers so I can measure the outside diameter of the threads and the threads per inch and check the thread angle. But many are...
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    Re: Adapting a Projector Lens

    i have used this for a variety of tasks when a putty was needed: https://www.milliput.com its mde in North Wales though and I don't know if it will be easily available but via the web it may well be.
  39. Re: Running Book Review: D’Agostini/Rose - 19th Century Great Britain & Ireland Lense

    In the case of Grubb, Ian Glass's excellent book on the Grubbs devote only one page to their photographic lenses! There is a lot of information on their telescopes but both had extensive involvement...
  40. Re: Running Book Review: D’Agostini/Rose - 19th Century Great Britain & Ireland Lense

    Really? As the originator of the Rapid Rectilinear (I have an 1864 Doublet and the concept to twp Aplanatics used in this way is at least reffered to in Grubb's 1857 Patent) surely this (then...
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