User Tag List

Thanks useful information Thanks useful information:  2
Results 1 to 4 of 4

Thread: aperture and DOF and format

  1. #1
    Account Closed reaction's Avatar
    Join Date
    18 Sep 2008
    Location
    Sydney
    Posts
    792
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    aperture and DOF and format

    I know that APS and 35mm are said to have different DOF. I know why FX has less DOF than DX.

    Is there a way to say that a pic taken with a f/ value in FX would have the same DOF as what f/ in DX?

  2. #2
    Administrator ricktas's Avatar
    Join Date
    24 Jun 2007
    Location
    Hobart
    Posts
    15,604
    Mentioned
    10 Post(s)
    Tagged
    1 Thread(s)
    it is all mathematics. There is probably a calculator available that can do this.

    The issue is that not all crop sensors are the same. Some are 1.4. 1.5 or 1.6 crops, and then you have the 4/3rd system and now micro 4/3rds. This is without considering the compacts and their sensors. Any calculation needs to be based on the crop factor of any particular cameras sensor.
    "It is one thing to make a picture of what a person looks like, it is another thing to make a portrait of who they are" - Paul Caponigro

    Constructive Critique of my photographs is always appreciated
    Nikon, etc!

    RICK
    My Photography

  3. #3
    Moderately Underexposed I @ M's Avatar
    Join Date
    04 May 2007
    Location
    Marlo, Far East Gippsland
    Posts
    4,911
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    If you have a look at this on line depth of field calculator you can enter differing camera ( FX or Dx ) formats, makes and models to show you the resulting depth of field at varying apertures.
    Andrew
    Nikon, Fuji, Nikkor, Sigma, Tamron, Tokina and too many other bits and pieces to list.



  4. #4
    Account Closed
    Threadstarter
    reaction's Avatar
    Join Date
    18 Sep 2008
    Location
    Sydney
    Posts
    792
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just read an article that clears this up. 1.5crop at 3.5 is same as FX at 5.6!
    That's just crazy, now I know why some insist on FX, hmm.

Posting Permissions

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