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    Re: Dual Focusing Mechanism

    The planetary gear (I assume that's how it works) coarse/fine idea was used by Meopta (who still make microscopes etc.) as a replacement for the standard focussing wheel on their later enlargers. It...
  2. Thread: Barbara Crane

    by MartinP
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    Re: Barbara Crane

    The OP's post seems to be nearly ten years old, but a quick search gives a couple of relevant videos on the wttw.com site. Was the missing clip one of those?

    It seems that she died last week? A...
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    Re: Fire extinguisher recommendation

    It works here giving a "Save or Open With" dialog box. One could try right-clicking the link and choose "Save As" from the option-list.

    Alternatively, it is copied below (if it works). The...
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    Re: Fire extinguisher recommendation

    Further reading regarding use of dry-chemical extinguishers in sensitive areas.

    As well as chemical secondary effects, furnishings and carpeting will need to be replaced. Yes, that's better than...
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    Re: Fire extinguisher recommendation

    At least in Europe, aren't halon based systems now illegal, except for enclosed compartments (like engine-bays etc) ??

    Any powder based extinguisher will make optical gear pretty much uncleanable...
  6. Re: FYI, those getting Arista EDU 400 8x10, not Triple Boxed

    Long ago, last century I worked at a Kodak Q-Lab (E6 and C41) covering a large part of the South of UK. Every few months (maybe three or four times a year) someone would come in with film that had...
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    Re: AC, Venting, ideas for a Darkroom Shed?

    As well as insulating the shed, can it have a 'car-port' type of roof-structure over the top of it? That would help considerably in sunny climates as the shed would be in permanent shade, and it...
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    Re: Lens caps? Bought or made?

    As `the whole thing is plastic/rubber, can you drill a small hole then fix a flap to the inside of the cap covering the hole in a springy manner. Pushing the cap on will keep it sealed, while...
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    Re: tray developing: which timer?

    I have an audible timer set to indicate agitation intervals with one sound and then completion with another. It is not the only 'app' to do this of course, but the one I have is running on an...
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    Re: Model name of your large format enlarger please

    Another somewhat resurrected thread, but it's all interesting stuff. For 4x5" I have a Meopta Magnittarus, in 10x15cm. There is around ten inches of clearance between it and the ceiling when the...
  11. Thread: ROLL CALL

    by MartinP
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    Re: ROLL CALL

    A rather resurrected thread, but I visit a couple of times a week.
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    Poll: Re: Do you buy photographic prints / art?

    I voted "No, I only print/hang my own work" as that was the nearest option. Last century I used to print black-and-white professionally, so I suppose I could say that other people have paid for the...
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    Re: Basic B&W Developing setup for 4x5

    One doesn't strictly need a wheeled or motorised device for rotation with Jobo tanks, in order to save chemicals and improve agitation. Tape a couple of bits of wood section to the table top,...
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    Re: Exact 5x12" sheet film sizes

    I recall Fotoimpex/Adox saying that they were gearing up for providing a cut-to-order service for their own ISO100 sheet film. It might be worth seeing what the current position is with them too.
  15. Re: (Talk me out of) offering people at scenic tourist site to have their LF photo ta

    You could keep the reflectors (presumably they have ES sockets) and use the cheap(-ish) high CRI video-lighting fluorescents. They are perhaps not truly perfectly daylight balanced, but they will be...
  16. Re: (Talk me out of) offering people at scenic tourist site to have their LF photo ta

    As a way of reducing the 'awkward' gap between getting the sitter interested and them getting a print, how about shooting paper-negs? They can then be developed and contacted by an assistant in a...
  17. Thread: Oslo

    by MartinP
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    Re: Oslo

    It is still there, of course. There is now a museum and exhibition with further examples indoors at Vigelands former workshop (which is useful if it's raining . . .).
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    Re: What is a"vision"?

    That's what you get from a very unsteady tripod.
  19. Thread: Lab in Paris

    by MartinP
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    Re: Lab in Paris

    If you are in France around the right time, perhaps a week of holiday at the end of your trip, the Rencontres Arles opening week is the first week of July. The hotels were booked up last Autumn but...
  20. Thread: Oslo

    by MartinP
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    489

    Re: Oslo

    When you are in the harbour area, somewhere near the castle (and you will be), then think of taking the water-taxi over to the Kontiki, Fram and the viking-ship museum. The water-taxis are an...
  21. Re: Looking to get into IR goggles to help me with my film handling

    I have noticed that the Raspberry-Pi micro-computer has an IR sensitive camera available as an accessory. Has anyone tried making a large changing-box with the IR-camera poking through a hole, with...
  22. Re: Suggestions for a LFP trip in Prague-Linz-Salzburg- Vienna

    If you are going to Prague and looking for a breakfast cafe, I can recommend Louvre.

    https://www.cafelouvre.cz/en/

    Less dramatic but with more of a view is Slavia.
    ...
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    Re: Developing Etkar 8x10

    If the environmental temperature is fairly high anyway, how about the fly-by method?

    Using water at 38C,for testing instead of the chemicals, measure the temperature drop during the processing...
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    Re: Burning Precise Areas

    You could always try masking the flash exposure to just the window and door, so that you don't lose any sparkle anywhere else. Make a test-print (on the cheapest paper you have), cut out the...
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    Re: Heiland LED Cold Light Source

    You are describing a safelight. The original-poster is asking about a light-source used for enlargers.
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    Re: Apple Watch Warning

    I admit to having used an Android tablet interval timer app to regulate agitation for sheet film, but I took the precaution of keeping it in one of the black bags paper comes in and giving four extra...
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    Re: Artifex beta 8x10 daylight tank

    Can you try a dip-and-dunk cage in a deep tank? Great agitation (with decent hangers that fit the cage, no swirling) and replenishable developer possibilities. No filling or draining time problems....
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    Re: Photographing glaciers in black and white

    If one wanted to darken reflections off water, unusual but you never know, would anyone have experience of the effect of a polariser on ice? The specular reflections might be limited, or are they so...
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    Re: Adhesive holders

    I recall seeing a vacuum-based film-flattening 8x10" DDS which had the non-film side modified to look like funnel in the middle. One was meant to suck through a tube, via the funnel, through holes...
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    Re: Darkroom Pop-Up Tent Recommendations

    Might it be easier to hire a big delivery van without windows in the back? It will also transport all the gear and be weatherproof. Just an alternative idea.
  31. Re: Figuring out exposure when the meter ISO setting doesn't go low enough

    The Gossen LunaPro has (or had) an official, 'drop-in', adapter which took two silver cells and was fairly cheap. I have one in my meter now. About five years ago Gossen stopped maintaining and...
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    Re: Safe light material in rolls?

    Turkey foil* is light-proof and heat-reflective, fixed to glass window-panes on the inside. I have seen that being used very effectively in a converted-workshop darkroom in Istanbul, where it was...
  33. Re: Help: How to convert a negative to positive to print as a "negative print"

    Make a lowish contrast, but dodged and burned, paper (RC glossy) print having the eventual size required - but make it with the neg 'upside-down'. Use the wrong-way-round paper inter-positive to...
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    Re: Converting room to a darkroom.

    Lots of practical ideas above. I would only add that a light-coloured floor can add to 'foot-security', especially if you have visitors using the darkroom. Table-legs, sink supports etc. have...
  35. Re: Silly question about vinegar-based silicone interacting with film, and light leak

    A new, or good-condition, darkslide is lightproof. An old secondhand one might be less secure, or it might be fine. Testing using enlarging-paper in full sunlight for a few hours, moving the...
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    Re: Where to start for an 8x10 enlarger?

    As an initial exploration, perhaps making an enlarger-back for your 8x10" camera would be an idea? There are various threads in here concerning using lightpads in place of 'hot' light-sources, so...
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    Re: Jobo 2840 for B&W prints

    Like Cor noted, and so long as the tank is cleaned after previous fixing, use a prewet to get the paper equally wet all over (hence no more drips showing up).
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    Re: cleaning old negatives

    I cannot comment on cleaning, but for copying old discoloured (brown/amber) prints and negs I have occasionally used a light orange filter to reduce the apparent effect of the staining, while copying...
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    Re: Trouble aligning my Beseler CB7

    Just the obvious question . . . instead of the curved front surface of the lens you, are using the piece of glass over the outer 'filter-thread' in order to reflect the laser dot? Sinilarly, when...
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    Re: Fomapan 100, 200 and 400

    A couple of years ago some photographers from another forum went on the Foma factory tour and there were pallets of film etc. in the goods-out area, including Arista in various formats. Making the...
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