Sony A100

Discussion in 'Sony' started by Sonny1, Jul 1, 2008.

  1. Sonny1

    Sonny1 Guest

    Hi,I am new to the forum and DSLR's. I had started out with a cyber-shot then
    a H1. Now I recently purchased a A100. I would like to gradually increase my
    experience with digital photography. I know the A100 is not the best but I
    wanted to initiate my experience with it. I have read some threads and know
    there are some serious photographers on this forum. I hope to learn from
    reading the info shared here.
    I have one question. On the A100 should I see whats called the focus frame
    within the view finder when I put my eye to the finder. If I am is there a
    way to turn it on because I do not see it.

    Sonny1, Jul 1, 2008
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  2. This is a Usenet newsgroup. Some websites do, however, steal them and
    present them as their own browser-based forums.
    Blinky the Shark, Jul 1, 2008
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  3. Although a newsgroup, it can still be accurately described as a forum. A
    forum is where people meet for discussion and that is certainly the case
    here. I will often refer to newsgroups dedicated to a specific interest as
    a forum.

    Secret Squirrel
    clandestin_écureuil, Jul 1, 2008
  4. I understand that. I also understand from his headers that OP is posting
    from a web gateway. My reaction was not to him calling it a forum; that
    he did was only a clue that he was probably posting from a web gateway,
    and that proved to be the case.
    I understand the term "forum".
    This does not conflict with my statement about web forums, or that the OP
    was posted from one.
    Blinky the Shark, Jul 1, 2008
  5. Sonny1

    Gilmoth Guest

    Sonny1 ha scritto:
    The viewfinder should look like this:

    Do you mean your is different? Don't you see the focus frame?

    Gilmoth, Jul 1, 2008
  6. The A100 finder has two layers. Closest to the mirror there is a fresnel
    screen with focusing surface - this has some visible markings, but
    really just looks plain with a centre spot of even more plain matte and
    sort of brackets round it. Above this, with a copper shim separating
    them, is a clear plastic sheet which has engraved markings forming lines
    and small boxes, some of which only become clearly visible when they are
    hit by red light from diodes at the edge of the screen - these are the
    active focus point markings.

    If you can not see the central square focus mark, and never see any of
    the other light up, someone may have removed the indicator screen from
    the assembly leaving only the focusing screen. This would not prevent
    normal camera operation but could lead to the focus on the screen being
    apparently wrong.

    David Kilpatrick, Jul 1, 2008
  7. Sonny1

    ASAAR Guest

    And a Secret Squirrel can sometimes be accurately described as a
    mystery meat stew.

    But an Ingrid Rose can never be accurately described in any other
    way, since a Rose is a Rose is a Rose.

    ASAAR, Jul 2, 2008
  8. Sonny1

    Francis Guest

    What do you mean by "the A100 is not the best" ? It is absolutely equal
    if not superior to other makes in the same price range. I have one and a
    friend of mine has a professional Nikon equipment. Under normal
    circumstances, we find no difference in the pictures. May be there are
    some in laboratory tests, but not in practical use. Just stick to your
    camera and feel happy. It is the computer behind your eyes which makes
    the pictures.

    Francis, Jul 2, 2008
  9. Thanks David, When I remove the lens I dont see what you are refering to. I
    will contact the sony service dept or the original place of purchase. I've
    never tampered with or dropped it myself but obviously I'm missing this.

    Sonny1 via, Jul 2, 2008
  10. Not to offend you or anyone else here, as I stated before I am new to DSLR's
    and the A100 was sold to me as a introduction to DSLR cameras. Judging by the
    price ranges of the other cameras presented to me,my assesment was this
    camera is good but not the best DSLR camera out there.
    No harm,No foul..
    Thank you.
    Sonny1 via, Jul 2, 2008
  11. Sonny1

    Bob G Guest

    What do you mean by "the A100 is not the best" ? It is absolutely equal
    Bob G, Jul 2, 2008
  12. Sonny1

    bob Guest

    Yes, the raw pictures are great, but the auto focus sucks! I used to have a
    Nikon and it was far far superior. One thing wrong with the Sony is that every
    time you turn the camera on, it winds the lens out to infinity focus - making
    fast picture taking impossible as you wait for the lens to go out and back in,
    really stupid if you ask me. I used to turn on the Nikon and take the picture in
    less then a second. Also, the Sony auto focus fails lots of times, you need to
    use this camera in all manual mode...
    bob, Jul 3, 2008

  13. Depends on the lens fitted. The Sony method (Minolta method) calibrates
    the AF by resetting when you switch on, and parking when you turn off.
    However, each different lens chip instructs the camera to behave
    differently. The new 16-105mm for example parks itself to infinity when
    you turn off, and does not execute a close-far reparking cycle on switch
    on - it makes a tiny noise which I guess confirms the focus is
    operating, but does not move off infinity, and is ready immediately. The
    18-250mm does a tedious and slow travel to reset.

    I don't know what you mean by autofocus 'fails'. In very low light, it
    can fail (not lock on) but only in conditions where Nikon and Canon
    cameras at a similar price point (sub-£1000) fail or hunt. With some
    subjects it's better than other cameras; Canon AF modules have problems
    with mainly green subjects in low light, Sony's AF module does not.

    David Kilpatrick, Jul 3, 2008
  14. It may also depend on which version of the 18-250mm. Mine, which is
    the Sony version, powers up very quickly in autofocus mode. Switching
    off is usually a little slower. It's also said to focus around twice
    as fast as the Tamron version of the lens due to different focus
    Chris Malcolm, Jul 3, 2008
  15. Sonny1

    Alan Browne Guest

    The unfortunate 'focus to infinity' is required for the camera to
    initiate the anti-shake (whatever it's called on the Sony). I wish it
    was an option (eg: if the anti-shake is off or in manual focus, don't do
    it) as I've also been caught short waiting for this cycle. Or in the
    studio I usually set up shots with the power off, so when you switch to
    on, the focus is lost).

    While I'm mainly a MF shooter, I've never had trouble with the autofocus
    on the Minolta's (where the Sony AF originates) except when there was
    low light, repeating patterns (lines) in the focus area or low contrasts
    in the focus areas. With most of my lenses, AF is quite fast.
    (Exceptions are the 300mm f/2.8 and the 100 f/2.8 macro if I forget to
    set the focus limiter on the lens).
    Alan Browne, Jul 5, 2008
  16. Sonny1

    bob Guest

    The only time I really need to get a FAST shot is when I'm outside, so I'm
    thinking I'll just leave the camera in manual, focused near infinity, and see
    how fast I can focus! Or I could set it like a P&S at conjugal and get
    everything from 8' out!!

    I take lots of shots of my hobbies, mostly working in the basement, so there
    isn't a lot of light... I find the auto focus is poor... there is lots of motor
    noise from my 18-200 lens hunting around! I remember the Nikon just going "shu"
    and the thing was focused... silent motor...

    I should try the other lens I have if this is lens related... now where did I
    put that thing...
    bob, Jul 6, 2008
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