Kodak DX6490 Lens adapter and exposure problems

Discussion in 'Kodak' started by Roots750, Dec 27, 2004.

  1. Roots750

    Roots750 Guest

    Santa brought me a lens adapter and a UV filter for my Kodak DX6490 For
    those not familiar with the camera, the adapter which is about 1.25" long
    threads onto the front of the camera surrounding the lens to protect it when
    it is extended, it also allows you to mount 55mm accessory filters
    http://www.kodak.com/eknec/PageQuerier.jhtml?pq-path=2095&pq-locale=en_US.
    This works very well; however, my problem is that now all my pictures (well
    the ones I took Christmas Day where the on camera flash was used at full
    wide, I have yet to try a test at zoom) are under exposed. I have tried
    several shots at full wide using the same exposure settings in both auto and
    manual mode ; with and without the adapter and with/without my UV filter and
    the shots with the adapter (with/without a filter) in place are flat and
    underexposed . I don't get a good result until I remove the adapter from the
    camera. I haven't had a chance to try outdoor exposures yet, but I can't see
    why things would be any different.
    Can someone explain this and perhaps tell me how to compensate for it? Ron
    Baird, has this been noted before it would be the same on the new DX7590?
    Care to comment?

    Brian
     
    Roots750, Dec 27, 2004
    #1
    1. Advertisements

  2. The adapter blocks part of the onboard flash and can't be used with the
    onboard flash. The adapter doesn't affect non flash operations.
    Ken Miller
     
    Kenneth Miller, Dec 28, 2004
    #2
    1. Advertisements

  3. What he says is correct. You need to read the manual. It is mentioned in
    there.
     
    Toomanyputters, Dec 28, 2004
    #3
  4. Roots750

    Roots750 Guest

    I have tested outdoors and do not experience the same problem with the
    adapter in place.

    With the camera in Auto mode, when using the flash the only speed available
    is ISO 80. I don't see how, but could this be part of the problem?
     
    Roots750, Dec 28, 2004
    #4
  5. Roots750

    Roots750 Guest

    Can you tell me what manual you are referring to and where the specific
    reference can be found ? Is it for the manual for the DX6490 ? Mine was
    printed in early 2003 before the lens adapter was developed.
     
    Roots750, Dec 28, 2004
    #5
  6. It's somewhere in that manual. Sorry, but I returned the camera to Costco
    and got a DSLR camera from Canon. I only have problems on closeup photos
    with the adapter. Distant shots were not effected.
     
    Toomanyputters, Dec 28, 2004
    #6
  7. Roots750

    Ron Baird Guest

    Greetings Roots,

    Just saw your note, Roots, and to my knowledge, no, that should not be an
    issue. If you are referring to the use of the Wide Angle lens, however,
    then yes it would be in the way of the flash. In either case, I always use
    the external flash feature on the camera. It provides excellent lighting
    (depending on flash features) that can illuminate a room and action at quite
    a distance. There is no interferance in this mode.

    Basically, however, lens adapter will not block the lens. I wonder if it is
    possible that with the filter in place, and being at the outer edge of the
    flash range, you are underexposing? Try setting the camera on a support,
    with flash on, and taking a timed picture. Measure the distance to the
    subject to be sure it is inside the flash range. Take another picture
    without moving the camera and subject but put the filter in place. Review
    these pictures to see if there is any flash fall off. Also, try zooming in
    on the subject and take a flash picture with the lens attachment on and off.
    Is there a difference. Remember, zooming shortens the flash range.

    Flash range of the DX6490 = wide - 0.5 - 4.9 m (1.6 - 16.1 ft.); tele -
    2.0 - 3.7 m (6.6 - 12.1 ft.)

    Try these tests to see how you do and let us know.

    Ron Baird
    Eastman Kodak Company
     
    Ron Baird, Jan 3, 2005
    #7
  8. Roots750

    Ron Baird Guest

    Greetings Roots,

    You can find the manual at the followin URL

    http://www.kodak.com/go/manuals

    Just look up your model. Nice feature. You can download the PDF if you
    have misplaced the manual itself. Let me know if you continue to have
    questions.

    Ron Baird



     
    Ron Baird, Jan 3, 2005
    #8
  9. Roots750

    Dave Guest

    I'm thinking of getting an external flash for my DX6490. What flash
    are you using? What type of mount?

    Thanks, Dave
     
    Dave, Jan 4, 2005
    #9
  10. Roots750

    Ron Hunter Guest

    I find the online manuals to be a very valuable resource for those who
    would like a bit more detail about a prospective purchase than can be
    had at a store. Being able to read the manual on a new camera before
    purchasing it is a valuable shopping tool. Thanks to Kodak for putting
    them online.
     
    Ron Hunter, Jan 4, 2005
    #10
  11. Roots750

    Ron Baird Guest

    Hi Dave,

    I am personally using the flash I have had for some time, i.e. Sunpak 622.
    I was a work horse for me in the past and so when digitals came along with
    the external flash feature, I employed it there as well. Nice flash with
    handle built in. Powerful as well. I suspect you do not need a flash that
    powerful and there are many out there. I would review the features of the
    flashes you consider as the camera will only send a pulse to fire the flash.
    All funtions will work through the flash, i.e. sensors, capacitor, settings
    for flash range, and so on. You can then set your camera accordingly.

    I do know that there are many using Vivitar but that is just a brand that I
    hear about. I had a 283 for quite a while as well. Those are personal
    choices.

    Talk to you soon,

    Ron Baird
    Eastman Kodak Company
     
    Ron Baird, Jan 4, 2005
    #11
  12. Roots750

    Dave Guest

    You're right. At $700 it's a bit more flash than I need! :)
     
    Dave, Jan 5, 2005
    #12
  13. Roots750

    Ben Thomas Guest

    I use a $50 no-name brand flash and I get very nicely lit photos bouncing the
    flash off the ceiling using my DX6490.

    --
    --
    Ben Thomas - Software Engineer - Melbourne, Australia

    My Digital World:
    Kodak DX6490, Canon i9950, Pioneer A05;
    Hitachi 37" HD plasma display, DGTEC 2000A,
    Denon 2800, H/K AVR4500, Whatmough Encore;
    Sony Ericsson K700i, Palm Tungsten T.

    Disclaimer:
    Opinions, conclusions, and other information in this message that do not
    relate to the official business of my employer shall be understood as neither
    given nor endorsed by it.
     
    Ben Thomas, Jan 5, 2005
    #13
  14. Roots750

    Ben Thomas Guest

    It's called an Incablitz 280AZ.


    --
    --
    Ben Thomas - Software Engineer - Melbourne, Australia

    My Digital World:
    Kodak DX6490, Canon i9950, Pioneer A05;
    Hitachi 37" HD plasma display, DGTEC 2000A,
    Denon 2800, H/K AVR4500, Whatmough Encore;
    Sony Ericsson K700i, Palm Tungsten T.

    Disclaimer:
    Opinions, conclusions, and other information in this message that do not
    relate to the official business of my employer shall be understood as neither
    given nor endorsed by it.
     
    Ben Thomas, Jan 5, 2005
    #14
  15. Roots750

    Roots750 Guest

    Hi and thanks for the helpful comments,
    I have tried many, many test shots and all of the shots with the lens
    adapter mounted are under exposed.
    Now that is with just the lens adapter mounted on the camera... no added
    filter, no additional lens just the empty adapter. If I take two identical
    shots, one with the adapter and then remove the adapter (which is
    essentially a tube with a flared end) from the camera, the shot with the
    adapter is underexposed. All my outdoor shots with the adapter alone and
    with a filter are OK.
    I think that the bottom portion of the flash pattern is being obstructed by
    the adapter and therefore the subject is only being partially illuminated.
    The camera was designed so that when the flash is used in Auto mode within
    flash range and assuming full illumination, the ISO is set automatically to
    80 with an f stop 2.8 and speed to 60, for anything less than full
    illumination this combination results in an underexposed shot.
    My indoor shots using my very inexpensive Sunpak 160 external flash are OK
    with the adapter mounted (empty and with a filter) and without the adapter
    mounted.
    I bought the adapter to protect the lens when it is extended so I hate
    taking it of for a flash shot and then putting it back on.
    I posed the question to Kodak support, the first answer wasn't really an
    answer they just asked me more questions. I have yet to get answer to my
    reply.
    So to sum up, pictures taken within flash range, using the on camera flash
    with an empty lens adapter mounted on the DX6490 are consistently
    underexposed.
     
    Roots750, Jan 5, 2005
    #15
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.