Problem with DSLRs

Discussion in 'UK Photography' started by Mike Cawood, HND BIT, Dec 13, 2007.

  1. Sadly I still have a problem with DSLRs.
    The problem I have is that these cameras still have a relic of the film era
    in them, that is the rising mirror and the pentaprism.
    Why can't DSLRs have an electronic viewfinder in them?
    That would dispense with the timelag & vibration caused by the mirror rising
    and falling & the expense of the pentaprism.
    Regards Mike.
     
    Mike Cawood, HND BIT, Dec 13, 2007
    #1
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  2. Mike Cawood, HND BIT

    Rob Morley Guest

    Because then it wouldn't be a reflex camera, would it?
     
    Rob Morley, Dec 13, 2007
    #2
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  3. Mike Cawood, HND BIT

    Andy Hewitt Guest

    The Olympus E410, E510 E330 and E3 do, The Panasonic DMC-L10 does, and I
    think some of the Leicas do too. These use a secondary sensor to produce
    an image for the view finder. However, the current models retain the
    mirror and pentaprism as well.
     
    Andy Hewitt, Dec 13, 2007
    #3
  4. Mike Cawood, HND BIT

    Woody Guest

    Timelag in a SLR? You are joking of course!

    Most modern SLRs don't have a pentaprism but rather a mirror system
    instead - at the lower end of the market anyway.

    And since when has vibration caused by the mirror been a problem. Modern
    SLRs - and by modern I mean post about 1980 or so (the Olympus OM1 being
    the first) - have air dampers on the mirror specifically to overcome
    that problem.

    Your comments would suggest that you have never used a SLR - digital or
    film - for any length of time. Personally I would rather have a SLR than
    a compact any day, albeit for day-to-day use a good modern compact is
    almost as good.
     
    Woody, Dec 13, 2007
    #4
  5. Mike Cawood, HND BIT

    Mark Dunn Guest

    An SLR wouldn't be an SLR without a mirror. But it does have a time lag due
    to the mirror- it always used to be quoted at 1/30s.
     
    Mark Dunn, Dec 14, 2007
    #5
  6. Mike Cawood, HND BIT

    ongar_route Guest

    Absolutely agree. My Dad has got a Fuji s9500, which is quite a nice
    camera otherwise, but I detest it because of the EVF. Staring at an
    over bright, pixellated display screen can never match the experience
    of seeing and composing the scene through proper optics. Whatever the
    other drawbacks.

    Use a current camera with EVF for a while, then use a proper SLR for
    while. Then go back to EVF camera and see which you prefer!
     
    ongar_route, Dec 14, 2007
    #6
  7. Hello folks.



    I tried an OM-1 when it was launched. I found the ones I tried had too much
    vibration when the shutter fired. The mirror damper did make them quiet but
    not vibration-free. I eventually bought a Canon which was far noisier but
    had very little vibration. Okay - part of this would be due to the shutter
    (OM-1 had a horizontal running cloth shutter whereas the Canon had a
    vertical running metal shutter) but I know from using mirror lock-up that
    mirrors do add some vibration to the camera. Subsequent use with the Canon
    confirmed that it had very little vibration (I could hand hold the camera
    with a 50mm lens at f1.4 down to around 1/10 sec).



    I had a Canon RT for a while. The lag between pressing the release and the
    mirror/shutter actually firing was around 8mS. I did some research on the
    Internet and found that a typical film SLR had a lag of around 110mS. The
    figure of 1/30 sec does sound rather quick to me.



    Bridge cameras have digital viewfinder (EVF, I think) but the comment is
    often made that the quality of these EVFs is not great. I've often
    heard/read that a film SLR user on trying a bridge camera with EVF would
    prefer an optical viewfinder.



    I agree with the comment that "... I would rather have a SLR than a compact
    any day ... ". I've used SLRs for around thirty years so I take the features
    of an SLR for granted.





    Regards, Ian.

    Nottingham, UK.
     
    Fred Anonymous, Dec 15, 2007
    #7
  8. I used to use a Minolta 35mm SLR but now I use a digital camera (Fuji S5700)
    with an EVF (not an SLR) and I much prefer the EVF.
    I don't actually use an SLR any more due to the weight & inconveniences of
    having to change lenses etc., also my old camera bag with 2 bodies, 8
    lenses, flashgun and numerous other fittings & adapters was back-breakingly
    heavy.
    Having said that, I have been known to drool over DSLRs in the window of my
    local camera shop.
    Regards Mike.
     
    Mike Cawood, HND BIT, Dec 22, 2007
    #8
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