Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,945   Posts: 1,585,818   Online: 973
      
Page 1 of 3 123 LastLast
Results 1 to 10 of 25
  1. #1
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    Milton, DE, USA
    Shooter
    Multi Format
    Posts
    7,004
    Blog Entries
    29
    Images
    19
    Wirelessly posted (BlackBerry9000/4.6.0.167 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102 UP.Link/6.3.0.0.0)

    Hi, all. I'm going to do some IR for the first time. Eveyone suggests an R72 filter. What is the filter factor for an R72?
    Thank you.
    CWalrath

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  2. #2
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    Milton, DE, USA
    Shooter
    Multi Format
    Posts
    7,004
    Blog Entries
    29
    Images
    19
    Wirelessly posted (BlackBerry9000/4.6.0.167 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102 UP.Link/6.3.0.0.0)

    Bump.
    Thank you.
    CWalrath

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  3. #3
    MattKing's Avatar
    Join Date
    Apr 2005
    Location
    Delta, British Columbia, Canada
    Shooter
    Multi Format
    Posts
    12,955
    Images
    60
    Chris:

    Your question about an appropriate filter factor for an R72 filter isn't as simple as it may seem.

    The problem with filter factors, is that they are dependant on the film involved, and the spectrum of the light available.

    I refer to two photos in my APUG gallery. Both were shot on the same roll of Rollie 400 on the same day using the same camera, lens and shutter. I used the same meter and metering technique. Naturally, they received the same development.

    For the first, I adjusted the exposure by giving it an additional 7 stops:

    http://www.apug.org/gallery/showphot...80&ppuser=6479

    For the second, I adjusted the exposure by giving it an additional 5 stops:

    http://www.apug.org/galleryshowphoto.php?photo=35625&ppuser=6479

    If you use a different film in the same light, you might need a different adjustment. If you use the same film under different light you again may need another adjustment.

    I find bracketing to be critical.

    Hope this helps.

    Matt

  4. #4
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    Milton, DE, USA
    Shooter
    Multi Format
    Posts
    7,004
    Blog Entries
    29
    Images
    19
    So, basically, get some film, shoot it through my red filter, bracketing, and see what turns up. As I was actually planning.

    Thanks for the confirmation. I guess I was naively hoping the IR fairy would come doink me on the head and say, 'HERE'S WHATCHA DO!'

    Yeah, I knew better.
    Thank you.
    CWalrath

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  5. #5
    Travis Nunn's Avatar
    Join Date
    Jul 2005
    Location
    Henrico, Virginia USA
    Shooter
    Medium Format
    Posts
    1,604
    Images
    32
    If you're trying IR for the first time you should bracket like crazy to find what works best for you. IR is not an exact science.
    ____________________________________________
    Searching my way to perplexion

  6. #6
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    Milton, DE, USA
    Shooter
    Multi Format
    Posts
    7,004
    Blog Entries
    29
    Images
    19
    Kinda what I figured. Another question. Would a stronger filter than a Red with a FF of 4 produce more dramatic results? Not like I have one to try it on but I was just wondering as to general results from others who have used. (You know, in another context that might not sound so good.)
    Thank you.
    CWalrath

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  7. #7
    GJA
    GJA is offline
    GJA's Avatar
    Join Date
    Jun 2009
    Location
    New Hampshire
    Shooter
    4x5 Format
    Posts
    112
    Best would be a 89 filter. They are completely black; thus there is no filter as both bright light and dim light would read on on your meter as no light at all.

    Ive heard that it should be shot through such a filter at around ISO 3. But with some experimentation im sure you will create your own system/methodology.

    Dont forget to keep a detailed log!

  8. #8
    Toffle's Avatar
    Join Date
    Mar 2007
    Location
    Point Pelee, ON, Canada
    Shooter
    Multi Format
    Posts
    1,804
    Images
    126
    Depending on the film I am using, I meter for ISO 1.5-6 for filtrating with an R72 filter... 1.5 to really bring out the IR effects for Maco/Efke films, and 6 for Ilford SFX. These settings give me negatives that I can work with in the darkroom without too much fiddling around. As the anticipated effect is not to achieve "natural" tones, I tend not to do very much dodging or burning of my IR images.

    Cheers,
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


  9. #9
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    Milton, DE, USA
    Shooter
    Multi Format
    Posts
    7,004
    Blog Entries
    29
    Images
    19
    Yeah. I think a roll of bracketing, maybe two, of different lighting situations and varying subjects is of the order.
    Thank you.
    CWalrath

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  10. #10
    keithwms's Avatar
    Join Date
    Oct 2006
    Location
    Charlottesville, Virginia
    Shooter
    Multi Format
    Posts
    6,079
    Blog Entries
    20
    Images
    129
    "Only dead fish follow the stream"

    [APUG Portfolio] [APUG Blog] [Website]

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