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daniel_luu_van_lang

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Posts posted by daniel_luu_van_lang

  1. Hi Joe,

    I use Bergger BPFB 18 ortho film in my homemade 12x16 camera, I made some sensitometry tests and here are the results:

    jobo CPA2 processor, presoaking 3 min, temp 25 C, rotation speed 4.

    film rated at 9 iso, Rodinal 1+100, 6 min processing, Dmax 1.7.

    film rated at 7 iso, rodinal 1+100, 3 min processing, Dmax 1,3.

    film rated at 12 iso, Rodinal 1+25, 6 min processing, Dmax 2,7 futher tests show me that basefilm +fog density increases a lot while the contrast does not change anymore.

    Hope this could help,

    regards

  2. Hello Ken,

    I bought a Variant LIII 2 years ago and it is still in new condition.

    Rigidity is pretty good at long extension, my longest lens is a 360/5.6 Rodenstock Sironar( not really a small piece of glass!). The bellows maximum extension is 485mm for the level III. Axial tilt and vertical shift(rise/fall) are controlled by the same mechanism and it's the only drawback I could find on this great camera. You can have the other specifications on their web site: www.gandolficorfield.co.uk

    There is a scale on the front standart for the horizontal shift(L/R),

    it's just a tape and it can rub against the rear standart when the camera is fold, so it could slide along.

    I never used the Ebony but it seems much more lighter! Anyway, I am very happy with mine and will not change until my back will say Stop!

    I find the gandolfi Variant III to be the only field camera to be as versatile as a view camera.

    So jump to the Gandolfi!!

    Best regards

  3. Hi all,

    Did anybody already use the orthochromatic film Bergger BPFB-18 in

    the field? I use this film in my darkroom for alternative process but

    I wonder if I could load it in a holder and shoot with it. According

    to what I've read in Ansel's "Basic photo ", it's possible but what

    about the sensitivity? Help!

  4. Hi all,

    I would like to know if any 8x10 film holder fits any 8x10 camera, is

    it standardized like 4x5 format? Can I use a fidelity holder with an

    old Agfa Ansco, Kodak 2D, or must I use an old wooden film holder

    instead? Would my film be at the same location as the ground glass?

    Thank's for your contribution.

    Best regards.

  5. I have just something to add to my previous post. Brian, you are

    living in Florida and I think almost everybody in the US has Air

    conditionned so that humidity and storage are not problems. In Africa

    or south east Asia, you should keep those problems in mind. Aside

    that detail, I completely agree with all the posters.

    Best regards

  6. Hello,

    In The 70s, I was living in Ivory Coast(for ten years), I was too

    young to shoot in LF, but I remember humidity was incredible. I think

    the wood of your camera should not be damaged but my concern is about

    the bellows. Moisture can appear in less than one month if you store

    it in a cupboard. In your case, I would think Teak, humidity is over

    90% in the air, depending of the country. Lenses could also be

    damaged with fungus, if storage is too long! I hope this could help

    you.

    Regards

  7. Hi,

    I have a 240G-Claron in barrel, I think it's a process lens and I've

    not used it yet since I haven't any shutter. Answering a previous

    post, many users said it could directly fit in a copal 1 shutter.

    Obviously, front and rear parts seem to have the right threads to be

    screwed in the shutter, my concern is: Is it working according to the

    opticals rules? since space between front and rear lens would

    increase.Anybody has an answer to that theorical question?

    Thank you

  8. Hi All,

    For quite a long time, I was looking for a brown toner that could provide the same tone as very olds albumen prints, unsuccessfully!

    Yesterday, I tried Tea...and it works great! The border is toned too, so the print looks like an old one (FB paper, of course).

    Aesthetic is great, but what's about longevity? does the tea attack the image? anybody has an experience? any feedback would be great!!

    Regards

  9. Hi Bruce,

    I agree with Dean and James, you must keep your sheets in your carry

    on bag, since carry-on X-rays machines will not fog them(<5 runs,

    according to Kodak recommendation)( and probably <1600 iso).For

    checked bags, most of internationals airports are now fitted up with

    InVision Technologies CTX5000 & CTX5500 tomographs and L3 Scans

    (rotating tube), they are very powerfull and ONE run is sufficient to

    damage a film, even the slowest. I hope this can help you.

    Best regards

  10. Hi John,

    With glass negative carrier you may have Newton circles on your

    prints, you can avoid that by using an anti-newton glass which is

    setup above the neg. I have a Durst 138 S and it works very good,

    very flat negs and no Newton circles;

    I hope this 2 cents add could help you

    Best regards

    Daniel Luu

  11. Hi Matt,

    Your'e right, there is a couple of different models. The Quickload

    model is like the readyload holder from Kodak, and Fuji has now a new

    quickchange film holder which is a kind of modern Grafmatic holder with

    4 or 5 sheets of film inside. I can't tell you more about it, since

    I've never used it yet.

    best regards.

  12. Thank's to all of you for your posts, they are very helpfull! It

    seems both increase the light for two stops. I think I'll purchase

    the fresnel since it is easier to fit on the camera.

    Good luck for your photos!

  13. Hi, All

    I've no more sharp eyes and my GG seems very dark, so I plan on to change it for a Bosscreen, or add a Fresnel. I'd like to have feedback from the community on the best choice. I use a Gandolfi 4X5.

    Does the Bosscreen exist with "cutcorners", so that I can keep on checking the vigneting?

    Thank's to all of you for your contribution to improve my knowledge!

    Best regards

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