Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 73,602   Posts: 1,622,472   Online: 968
      
Page 1 of 3 123 LastLast
Results 1 to 10 of 25
  1. #1
    Rhodes's Avatar
    Join Date
    Sep 2009
    Location
    Figueira da Foz, Portugal
    Shooter
    35mm
    Posts
    451

    Quick question abopt rollei 400 infrared

    Can I use it with cameras that have the small view filme window in the back?

  2. #2
    DWThomas's Avatar
    Join Date
    Jun 2006
    Location
    SE Pennsylvania
    Shooter
    Multi Format
    Posts
    2,386
    Images
    69
    I admit I haven't tried it, but wouldn't expect it to be a problem if you are able to use regular ISO 400 pan films in the camera. (The Rollei material doesn't extend very far beyond the visible spectrum.)

  3. #3
    Rhodes's Avatar
    Join Date
    Sep 2009
    Location
    Figueira da Foz, Portugal
    Shooter
    35mm
    Posts
    451
    Thanks, I just ask because efke 820 IR film sheet warn about using the film with this types of camera because of fogging the film, etc. And actually I only got one 2 cameras (35mm) that do not have the window!

  4. #4
    AgX
    AgX is offline

    Join Date
    Apr 2007
    Location
    Germany
    Shooter
    Multi Format
    Posts
    9,478
    In case of doubt:

    -) do a test with the first "unexposed" part behind the leader by letting a lot of sunlight shine into that window at several angles

    -) then tape the window on the outside with Aluminium foil (to safeguard the rest of the film and to have something to compare the first strip to)

  5. #5

    Join Date
    Nov 2005
    Location
    Cheshire UK
    Shooter
    Medium Format
    Posts
    1,968
    It could be a BIG problem, IR film is incredibly sensitive, I would never use it in a red window camera without masking out the window.

    Simon ILFORD Photo / HARMAN technology Limited.

  6. #6
    Rhodes's Avatar
    Join Date
    Sep 2009
    Location
    Figueira da Foz, Portugal
    Shooter
    35mm
    Posts
    451
    Normally they are not red, more white/light green or orange!

  7. #7
    AgX
    AgX is offline

    Join Date
    Apr 2007
    Location
    Germany
    Shooter
    Multi Format
    Posts
    9,478
    What windows are we talking about??

    The red one for roll-film positioning, as Simon thought, or that foam-sealed window to show part of the type 135 cassette, as I thought?

  8. #8

    Join Date
    May 2005
    Location
    Daventry, Northamptonshire, England
    Shooter
    35mm
    Posts
    7,317
    Quote Originally Posted by Simon R Galley View Post
    It could be a BIG problem, IR film is incredibly sensitive, I would never use it in a red window camera without masking out the window.

    Simon ILFORD Photo / HARMAN technology Limited.
    I quote Simon but the question isn't necessarily posed to him alone:

    Are we talking about it being safe to check the red window in shade when moving the film to the next frame but ensuring that at all other times the mask is applied? I am thinking here of SFX and Rollei 400S

    One day I might want to try both films in my Agfa Isolette which has an aluminium mask to cover the red window but no point in using either film if at no time can the red window be used to check the film position.

    Thanks

    pentaxuser

  9. #9

    Join Date
    Mar 2008
    Location
    San Diego, CA, USA
    Shooter
    Multi Format
    Posts
    2,286
    Images
    21
    I've used the Efke film (with more extended sensitivity) in red-window cameras and been OK as far as the red window is concerned. I did, however, find out the hard way that some visually-opaque bellows (bellowses? bellowsen?) aren't entirely IR-opaque!

    It would be prudent to run a test roll anyway---maybe even a torture test in which you leave the red window uncovered and pointing at the sun for a while---but personally I would expect it to be OK, assuming the bellows material doesn't pass IR.

    -NT
    Nathan Tenny
    San Diego, CA, USA

    The lady of the house has to be a pretty swell sort of person to put up with the annoyance of a photographer.
    -The Little Technical Library, _Developing, Printing, And Enlarging_

  10. #10
    DWThomas's Avatar
    Join Date
    Jun 2006
    Location
    SE Pennsylvania
    Shooter
    Multi Format
    Posts
    2,386
    Images
    69
    Somebody should risk the money and test, I guess. One might have hoped maybe somebody already (maybe inadvertently) had!

    Doing a light leak test, I once loaded regular 400 pan film (TMX as I recall) in my Perkeo II and left it, red window cover open, in the sun at various angles for 15 minutes per exposure, winding a blank frame between tests to catch stuff outside the film mask. I saw no damage attributable to the red window. There was a small mark just on one edge on a single frame that was probably a hinge-related mark. Given that pan film has at least some red sensitivity, I don't think the window color is all that significant.

    So that was my logic in the post up-thread. The Efke IR stuff goes further into the IR region and might potentially stir up more problems, but as far as l know neither goes anywhere near as far out as the old Kodak material.

    I view testing, bracketing and occasional frustration as a part of shooting IR anyway!

    Edit: And while I was fumbling at the keyboard, we got some real input -- thanks Nathan!

Page 1 of 3 123 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin