Site Sponsors
Results 1 to 13 of 13

Thread: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

  1. #1
    Senior Member
    Join Date
    May 2009
    Location
    Marseille, FRANCE
    Posts
    972
    Post Thanks / Like

    Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    when i shoot a Gretag Macbeth ColorChecker Gray Scale Balance Card with my aptus 22 and my profoto D1... leaf capture read the grey as being more than 7000 K
    I've tried it with two computers !

    i've just tried an old broncolor FCC colormeter that says 6100K

    a friend of mine will send me his Minolta III colormeter to test it also.

    They are supposed to be at 5800K... so, 6100 i can understand, but 7000, an even 7250 for the second head ?

    something wrong with my back ? leaf capture ?

  2. #2
    Subscriber and Workshop Member
    Join Date
    Dec 2007
    Posts
    2,800
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    My D1 Profotos come in at 5500K - they are 500's but I doubt that would make a difference.

    How do the files look?

    Bob

  3. #3
    Member
    Join Date
    Oct 2008
    Location
    Tucson, the other Arizona
    Posts
    136
    Post Thanks / Like
    Images
    6

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    Quote Originally Posted by archivue View Post
    when i shoot a Gretag Macbeth ColorChecker Gray Scale Balance Card with my aptus 22 and my profoto D1... leaf capture read the grey as being more than 7000 K
    I've tried it with two computers !

    i've just tried an old broncolor FCC colormeter that says 6100K

    a friend of mine will send me his Minolta III colormeter to test it also.

    They are supposed to be at 5800K... so, 6100 i can understand, but 7000, an even 7250 for the second head ?

    something wrong with my back ? leaf capture ?
    What modifiers are you using? I've found that they change the temp also. Mine tend to fall in the 4800 ~ 6000 k range, but nothing like you are experiencing.

  4. #4
    Sr. Administrator Jack's Avatar
    Join Date
    Oct 2007
    Location
    Los Altos, CA
    Posts
    10,486
    Post Thanks / Like
    Images
    1031

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    Did you buy them new or used? I ask because with Profoto you can buy UV or clear flash-tubes AND UV or clear, frosted or unfrosted cover glasses. It is not uncommon for a cover glass to break and somebody inadvertently replace a UV glass with a non-UV glass, raising the color temp. So if neither the tube or the cover glass is coated, that will run the temps way up...

    As Mark said it could also be modifiers --- softboxes with baffles usually go quite a bit warmer, and yellow as they age, so go even warmer still, but this of course would lower your color temp, not raise it.

    THis is why Profoto offers the coated and uncoated tubes and cover-glasses, so you can balance your light to your particular modifier...
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  5. #5
    Senior Member
    Join Date
    May 2009
    Location
    Marseille, FRANCE
    Posts
    972
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    i've bought it new 6 months ago, and this test is without modifier !

    i'm in the process to buy the minus 300K dome.

    I also find that even with the profoto softbox, the light is harder than with a profoto compact 1200... without dome, the light is much more directive !

    Reading that : "Sekonic Prodigi C-500 Meter takes care of your color and lighting calibration with the ability to read spectral sensitivity for film, ccs, and cmos sensors"
    i start to believe that the difference between the leaf capture software and the colormeter is just about spectral sensitivity.

    Anyway the image looks good, but mixing with natural light becomes more tricky !

  6. #6
    Senior Member
    Join Date
    May 2009
    Location
    Marseille, FRANCE
    Posts
    972
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    Quote Originally Posted by docmoore View Post
    My D1 Profotos come in at 5500K - they are 500's but I doubt that would make a difference.

    Bob
    how did you mesure it ?

  7. #7
    Subscriber and Workshop Member
    Join Date
    Dec 2007
    Posts
    2,800
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    Quote Originally Posted by archivue View Post
    how did you mesure it ?
    Gross k from D3 and H3DII when viewed in ACR/Phocus....

    I guess if I were more rigid I could drag out my Eye One Extreme but the white balance and color were very good at 55-5700K.

    By the way I bought the new domes for the D1 to use on modifiers like the White beauty dish...seems to get closer to the compact as far as light spread...and very easy to change out as needed.

    Bob

  8. #8
    Member
    Join Date
    Oct 2008
    Location
    Tucson, the other Arizona
    Posts
    136
    Post Thanks / Like
    Images
    6

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    Quote Originally Posted by docmoore View Post
    Gross k from D3 and H3DII when viewed in ACR/Phocus....

    ...and very easy to change out as needed.

    Bob
    Easier if you stick a couple of plastic knives in your kit, one to push the clip up and another to pop the flat glass plate out.

  9. #9
    Subscriber and Workshop Member
    Join Date
    Dec 2007
    Posts
    2,800
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    Quote Originally Posted by Mark_Tuttle View Post
    Easier if you stick a couple of plastic knives in your kit, one to push the clip up and another to pop the flat glass plate out.
    Great tip...thanks!

    Bob

  10. #10
    Senior Member
    Join Date
    May 2009
    Location
    Marseille, FRANCE
    Posts
    972
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    the Minolta color meter III says 5900K...

    i still don't undertstand !

  11. #11
    Subscriber and Workshop Member
    Join Date
    Dec 2007
    Posts
    2,800
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    My assumption is that Leaf Capture is way off...the others seem to be fairly close. Do Leaf Capture files look warmer than real time?

    Bob

  12. #12
    Senior Member
    Join Date
    May 2009
    Location
    Marseille, FRANCE
    Posts
    972
    Post Thanks / Like

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    no color is spot on !

  13. #13
    Senior Member
    Join Date
    Nov 2008
    Location
    Singapore
    Posts
    332
    Post Thanks / Like
    Images
    28

    Re: Profoto D1 1000 and Leaf Aptus 22 : color T too hight ?

    If I remember correctly, when I compared color temperature readout in Capture 1, Bibble 4.xx and my Minolta colormeter, they all gave me very different results. I stopped believing in using such readings and now shoot reference frames of known standards like X-rite passport or CC24 or CC SG before every shoot.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •