Digital - Minimum Aperture

Discussion in 'Beyond the Basics' started by OBrien, Mar 4, 2005.

  1. OBrien

    OBrien TPF Noob!

    Joined:
    Mar 4, 2005
    Messages:
    155
    Likes Received:
    1
    Location:
    Dublin, Ireland
    I have recently moved from film to digital photography, and am just coming to grips with the new technology. I bought a Konica Minolta Dimage Z3, but will probably upgrade to an SLR if I take to digital. It’s a great little camera in many ways, but there is one major disappointment for me. The minimum aperture seems to be f8, no matter what I do with shutter speed or ISO. Is this normal with digital cameras? I didn’t see it mentioned in any of the product reviews I read, or indeed in the camera manual. But this is a real problem for landscapes in particular.
     
  2. Kent Frost

    Kent Frost TPF Noob!

    Joined:
    Jan 27, 2004
    Messages:
    572
    Likes Received:
    21
    Location:
    Springfield, MO USA
    Can others edit my Photos:
    Photos NOT OK to edit
    It's common with many of the digital cameras that don't allow you to swap out lenses. The Digital SLRs are identical to film SLRs in that respect. Whatever lens you buy for it, that's the aperture capability for it.
     
  3. Christie Photo

    Christie Photo No longer a newbie, moving up!

    Joined:
    Jan 7, 2005
    Messages:
    7,006
    Likes Received:
    67
    Location:
    Kankakee, IL
    That's an f 2.8 lens... try shorter focal legnths (wide angle). I bet you start to see larger aperatures.

    Cool lookin' camera.

    Good luck!

    -Pete Christie
     
  4. OBrien

    OBrien TPF Noob!

    Joined:
    Mar 4, 2005
    Messages:
    155
    Likes Received:
    1
    Location:
    Dublin, Ireland
    Thanks, I have no problem with the larger apertures, 2.8 is fine, and I was conscious of that when I bought the camera as I do like to shoot in low light without flash at times. But I just assumed that f16, f22, even f32 would be available and it seems they're not. And I couldn't think of any reason why not, unless it was a limitation of the digital format. Anyway, I suppose I'll have to live with it until I eventually go SLR.
     
  5. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

    Joined:
    Dec 16, 2003
    Messages:
    33,818
    Likes Received:
    1,811
    Location:
    Edmonton
    Can others edit my Photos:
    Photos NOT OK to edit
    I tried to look up the specs for minimum aperture for that camera...but I had no luck.

    However, I was thinking about it and you might be able to get a pretty deep DOF at only F8 because the sensor is much smaller than the 35mm film that you are used to. It would be pretty easy to test that out.
     
  6. kfoster

    kfoster TPF Noob!

    Joined:
    Dec 25, 2004
    Messages:
    148
    Likes Received:
    0
    Location:
    Allentown, PA
    You mentioned changing shutter speed and ISO. What about using the aperture priority mode built into the camera. This mode simply allows you to change the aperture manually. Many photographers use this mode rather then full auto or shutter priorty. Obviously, auto mode or programmed auto will not allow you to change the apeture or shutter speed.

    K
     
  7. lazarus219

    lazarus219 TPF Noob!

    Joined:
    Aug 30, 2004
    Messages:
    215
    Likes Received:
    2
    Location:
    Port Macquarie
    I'm pretty confident most 'prosumer' (non DSLR) have limits at F8- why? i have no idea but coyuld have something to do with the smaller chip, but then i guess you could still want the lnoger shutter speeds.... MY camera limits at F9 (at full wide) and is a fuji S5500 (same class as a Z3) if you decide to follow this up with the manufacturer or anythnig- just to find out why plkease post their reply. Ive never thought about this much and youve got me interested now
     
  8. DocFrankenstein

    DocFrankenstein Clinically Insane?

    Joined:
    Apr 29, 2004
    Messages:
    1,646
    Likes Received:
    6
    It has to do with the smaller chip and diffraction limit. And it binds to the same reason why f/64 club has the f/62 aperture.

    Small sensor = small focal lenghts. If you have a 6-20mm zoom, you can't possibly go smaller than f/8

    6/8 would give you an opening of 0.7 mm opening...

    When f/22 of a 50mm SLR lens would give you around 2mm opening.

    So, the max aperture of PS cameras is limited by diffraction. Therefore, they all lick goat balls.

    QED mother!@#$ers! QED!
     

Share This Page

Search tags for this page
aperture minimum f8
,
f8 minimum aperture
,
minimum aperture digital camera
,

small minimum aperture