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    Re: Help Identifying Brass Lens

    A Petzval that covers full plate size will weigh up to 2 kilos, so what you have paid for postage should give you a clue. An RR will be under 0.5 kilo.
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    Re: Help Identifying Brass Lens

    I have found the eBay listing.

    Nowhere does the lister give the size, which suggests this IS a rapid rectilinear - not a Petzval. Not all RR’s are symmetrical. So non-identical front and rear...
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    Re: Help Identifying Brass Lens

    Petzval!

    Towards the end of the 19th century, plain barrel lenses became quite popular.
    Hyatt is a well known retailer. Try the search facility!

    Or here :...
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    Re: Berthiot 520mm f6.3 Special Aviation

    The first thread in this section (a "sticky” ) by Dan Fromm is an excellent entry into source material about French lenses of the 20th century.
  5. Re: Why I think a “Frenchman” is an American. Other opinions please!

    Couldn’t find anything about their Zn/Cu mix or other metals, but there are further links to the Waterbury (CONN.) valley Brass production with some well names in early US photography (Scovill and...
  6. Re: Why I think a “Frenchman” is an American. Other opinions please!

    continued!

    My thoughts were that almost all radial drive lenses ( which I am fairly sure this lens used to have ) are American. I think that the most likely maker is Harrison, which would match...
  7. Why I think a “Frenchman” is an American. Other opinions please!

    I think I must be one of, perhaps, three people who still bid for Petzvals in auctions!

    This one was described as being French , perhaps because it was listed after a smaller Hermagis Petzval.
    It...
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    Re: My Cycle Poco 5x7 is Very Excited...

    I think the classic reason why many cycle cameras have the GG apparently mounted the wrong way is that they were used in the late "gentleman amateur photographer" era post 1900. The introduction of...
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    Re: Help request - Darlot lens

    The 11 relates to the pitch/size of the focusing drive track. There was probably another “11” stamped on the underside of the brass cap housing the drive gear.

    By modern, I suppose you mean...
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    Re: Help request - Darlot lens

    This is a “pill box” version of the single lens landscape achromat lens - made at various times in Darlot’s lifetime (which ended around 1900!).
    Originally there would have been a set of different...
  11. Re: Chassis for an old Bernard Watchl 8x10

    Making a new plate/film holder that works perfectLy, requires the presence of the camera - or at Least, the camera back. Making a good plate holder, is, in my view, more difficult than making a...
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    Re: Lerebours Serial Number - Rice Writing

    Added another 3 Lerebours et Secretan lenses to the list of existing lenses (#63) today. We are up to about 85 known lenses now - there must be some more out there? We have less than 1% of the total...
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    Re: Need Grubb Lens Expertise

    2 more surfaced.

    770 and 2175 . Both aplanatics - can be found in Germany - enough said! Both a bit out of the ordinary.
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    Re: Maugey (Aine) Petzval - makers info

    By pure chance, I can give a little more information about Maugey.
    I received a lens to-day EBay/UK. It had lost it’s brass sleeve, but looked like a early Waterhouse conversion of a French lens...
  15. Re: Please help. View camera Identification.

    Kodak (UK).
    After 1911 (WC 2 address London).
    1/2 plate size.
    Until 1929, these were made in the US and "assembled" in the UK!
  16. Re: Ansel's Adams & Co Minex De Luxe Tropical Mahogany Camera

    Although Adams of London first produced this swanky camera in 1909, Channing & Dunn state that it was still in production in 1952! And more or less without modifications in the original design. So it...
  17. Re: Ansel's Adams & Co Minex De Luxe Tropical Mahogany Camera

    I doubt the auctioneer really believes this!
    I certainly don’t.
    A little too easy to connect Adams the user with Adams the maker. A look at time line for the Adams company and it’s production,...
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    Re: How I did it: new balsam for a sick RR

    "Drying under heat"
    A belated answer!
    I have progressively reduced the maximum temperature for setting the edge balsam after reassembly! I suppose that room temperature would be good enough if can...
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    Re: How to get into ULF?

    Building a ULF camera can be a very rewarding experience. It can also take a very long time and become more expensive than actually buying a new (old) one. You also have the problem that your...
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    Re: Dating Derogy lens

    Yes!
    Not common, though - just used at the start.

    There are two examples in the le Reve booklet - both on achromats.

    Wallet & Hermagis Opticiens Quai de l’Horloge 33. Paris.

    Derogy Opt....
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    Re: Haze inside lens

    Barrel Heliars are quite straightforward to clean all 6 glass surfaces. Not a usual victim of balsam/glue problems.
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    Re: Dating Derogy lens

    I have another (unique?) engraving - probably from the few days when Derogy was deciding how to engrave his lenses for the UK market!
    First half is the standard French Foyer Multiples - second half...
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    Re: Dating Derogy lens

    I have been looking at the details of the brass work on various illustrated and own Derogy Petzvals and there seem to be a few changes during time. In particular, the style of the turning knob on the...
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    Re: Dating Derogy lens

    We are lucky (or, perhaps unlucky!) in that Derogy had a whole range of different engravings!

    Perhaps these represent different dates, but perhaps not. There is certainly a range of English...
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    Re: Dating Derogy lens

    This one has always been a Unicum! The brass is obviously correct, but why DY?

    I don’t believe the Pont sequence - with 10,000 being about 1860. The patent Foyers Multiples did sell well, but a...
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    Re: Dating Derogy lens

    Before I start any listing, I would like to summarise the known history of the "Derogy" brand. This is basically extracted from the standard modern descriptions by Pont/Princelle and L'Agostini -...
  27. Re: Chassis for an old Bernard Watchl 8x10

    Yes, the dark slides can be difficult to move - and difficult to service as they can’t (easily!) be removed. Obviously, wood dimensions change through 100 + years and a bit of sanding/lubrication is...
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    Re: Dating Derogy lens

    Unless anyone can suggest a reason why I shouldn't, I will use this thread to build up a table of lens types from Wallet, Hermagis & Derogy and Derogy from around 1855 until about 1865. There are a...
  29. Re: What camera shops to visit in Vienna?

    The WestLicht name has been retired (2018?).

    Note that some of the (unfriendly) listed prices are further inflated by 20% VAT.
  30. Re: Fit of film holders 5x7 for ~120 year old camera

    I have a few of these cycle (lightweight, boxed and leather finish over the mahogany frame) cameras. They have sometimes been misused - weakening the box frame- and bellows are also subject to decay...
  31. Re: Fit of film holders 5x7 for ~120 year old camera

    The standardisation of 5x7” ( and metric sizes, too) was well after the production date of your Korona.
    You Will be able to see what the right plate holders for your model Korona here.
    ...
  32. Re: What camera shops to visit in Vienna?

    Here is a link to WestLicht, Vienna.

    https://www.tripadvisor.dk/Attraction_Review-g190454-d1068833-Reviews-WestLicht-Vienna.html

    I only know them as a classic photographica auctioneer, now...
  33. Re: Insight Requested on ULF Studio Camera Project

    I have a fair number of these Continental studio cameras (about 5).

    You talk about 15x15" format, which seems like a very large studio camera. I think that this is only possible if you are...
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    Re: Thornton Pickard Shutter

    Ian has been silent here for a few years.
    And doesn’t respond to PMs.
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    Re: Servicing an old lens... worth it?

    Go visit http://www.piercevaubel.com/cam/catalogs/1911senecalp262.htm

    If you havn’t already found Vaubel’s catalogues!
  36. Re: How to identify the film holder type for a unbranded large format camera

    Danmark is, like most other countries, completely devoid of an active large format and film based active community. There are onLy two or three active here - although Emil from Jutland is a real...
  37. Re: How to identify the film holder type for a unbranded large format camera

    please read my earlier post again!
    Plate holders for 13x18cm cameras are frequent items on ebay.de. Making these holders from scratch would be very, very difficult.
  38. Re: How to identify the film holder type for a unbranded large format camera

    This is one version of plate holders for a 13x18 camera. Cameras were usually sold with sets of 3 holders. The earlier version looked similar, but had two halves which opened up to load/unload plates...
  39. Re: How to identify the film holder type for a unbranded large format camera

    This is definitely a 13x18cm rejsekamera. Great numbers were made from around 1890 up to WW1.This example was made in Germany and would have been a better than average product!
    Marking the ground...
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    Re: US Navy Over-Sink Drying Rack

    Is this the system? Standard wooden clothes pegs are good enough for the US navy!
    There are domestic pull-out systems that are elasticated and roll up to just a narrow box on the wall. Great for...
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