Site Sponsors
Results 1 to 11 of 11

Thread: 645 DF

  1. #1
    tetsrfun
    Guest

    645 DF

    MR's review of the 645 DF...very positive..

    http://www.luminous-landscape.com/re...phase-DF.shtml

    Steve
    Last edited by tetsrfun; 22nd November 2009 at 16:05.

  2. #2
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: 645 DF

    Good have yet to read it but so looking forward to mine coming. Can't get here fast enough
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  3. #3
    Administrator Bob's Avatar
    Join Date
    Oct 2007
    Location
    Prescott, Arizona
    Posts
    4,492
    Post Thanks / Like
    Images
    367

    Re: 645 DF

    Tap tap tap,
    I am waiting ....
    -bob

  4. #4
    Member Chris Barrett's Avatar
    Join Date
    Jun 2009
    Location
    Chicago
    Posts
    201
    Post Thanks / Like

    Re: 645 DF

    Heh... I keep forgetting I ordered mine.

  5. #5
    Senior Member
    Join Date
    Dec 2008
    Location
    Los Gatos, CA
    Posts
    340
    Post Thanks / Like

    Re: 645 DF

    Krikey....1/1600 at ISO50. At Sunny 16, that's f/2.8 with full sync. No unusable apertures left on the dial.

  6. #6
    bdeshazer
    Guest

    Re: 645 DF

    "Please note that the leaf shutter lenses will also work on older firmware-updated 645AF and 645AFDIII models, but without the 1/1600 top sync speed."

    Hmm, that appears to be news or has this been reported/discussed in other threads and I've missed them?

  7. #7
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: 645 DF

    I think Doug may have a answer for sure on that one.
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  8. #8
    tetsrfun
    Guest

    Re: 645 DF

    Quote Originally Posted by bdeshazer View Post
    "Please note that the leaf shutter lenses will also work on older firmware-updated 645AF and 645AFDIII models, but without the 1/1600 top sync speed."

    Hmm, that appears to be news or has this been reported/discussed in other threads and I've missed them?
    Here is an explanation by Doug Peterson (CI) from the LL thread..

    "Correct. The technologies employed by Canon and Phase to accomplish high sync speed are NOT the same. One is using a stroboscopic effect to create effectively continuous light during the entirety of the focal plane travel and the other is dealing with the timing of the sensor.

    The upside of the Canon method is you can get down to the ludicrous 1/8000th speed. The downside of the Canon method is the ammount of flash power you're able to produce is extremely limited at 1/8000th and you can only use a select number of compatible flashes.

    The upside of the Phase method is you can use FULL power of the strobe and you can use a variety of strobes. The downside of the Phase method is you're limited to "only" 1/1600 (though that's really way more than you need 99.9% of the time) and you must use a leaf shutter lens and a digital back engineered.

    Of note of course is the fact that Phase's Schneider Leaf Shutter Lenses will sync at 1/800 with any digital back. Only the 1/1600 sync requires a 65+/40+.

    Doug

  9. #9
    Senior Member
    Join Date
    Dec 2008
    Location
    Los Gatos, CA
    Posts
    340
    Post Thanks / Like

    Re: 645 DF

    Doug,

    That explains basic HSS flash technology (also used on Nikon and Sony, btw).

    I think he was referring to the ability to rejig older cameras for the leaf lenses.

    Not that I'd be able to afford the lens, though...so I'll have to stick with 1/400 on my RZ.

  10. #10
    Workshop Member
    Join Date
    May 2008
    Location
    NYC
    Posts
    3,275
    Post Thanks / Like
    Images
    7

    Re: 645 DF

    It has always been the goal to make the LS lenses work on previous bodies - the only question/hurdle was technical. MR apparently either knows more than I do, or is willing to translate "we're working on it and are pretty sure it will work" into a statement of "will also work".

    Until some member of my company has their hands on a working AFDIII/LS lens lens combo I will continue to state that it's a goal they are working on and feel pretty good about.

    Doug Peterson (e-mail Me)
    __________________
    Head of Technical Services, Capture Integration
    Phase One, Leaf, Cambo, Canon, Apple, Profoto, Eizo & More
    National: 877.217.9870 *| *Cell: 740.707.2183
    Newsletter: Read Latest or Sign Up
    RSS Feed: Subscribe
    Buy Capture One at 10% off

  11. #11
    Senior Member kdphotography's Avatar
    Join Date
    Aug 2008
    Location
    Carmel/Tucson
    Posts
    2,355
    Post Thanks / Like

    Re: 645 DF

    Quote Originally Posted by dougpetersonci View Post
    It has always been the goal to make the LS lenses work on previous bodies - the only question/hurdle was technical. MR apparently either knows more than I do, or is willing to translate "we're working on it and are pretty sure it will work" into a statement of "will also work".

    Until some member of my company has their hands on a working AFDIII/LS lens lens combo I will continue to state that it's a goal they are working on and feel pretty good about.

    Doug Peterson (e-mail Me)
    __________________
    Head of Technical Services, Capture Integration
    Phase One, Leaf, Cambo, Canon, Apple, Profoto, Eizo & More
    National: 877.217.9870 *| *Cell: 740.707.2183
    Newsletter: Read Latest or Sign Up
    RSS Feed: Subscribe
    Buy Capture One at 10% off
    From the LL man himself:

    I have a question, do i have to buy a PhaseOne DF camera to use the new LS lenses or can i use the new lenses with my "old" PhaseOne 645 camera?

    From my review....

    "Please note that the leaf shutter lenses will also work on older firmware-updated 645AF and 645AFDIII models, but without the 1/1600 top sync speed."

    Your local Phase One dealer will be able to do the firmware upgrade for you.

    And by the way, something that I forgot to mention in the review is that the new vertical grip (645DF only) will have a USB port, and will allow camera firmware upgrades in future by the user.

    Michael

    Nice to know if indeed true. Makes having an older body a nice back-up to the new 645DF. But I'll rely on Doug here and wait for his confirmation....

    ken

    p.s. You need to come out to California, Doug.....

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
  •