New Fuji EVF lag is low, at least on the surface

Discussion in 'Digital Cameras' started by RichA, Jan 23, 2014.

  1. RichA

    RichA Guest

    I'd have to see it in action, but it should accommodate a decent pan speed, maybe.
    All this can be calculated mathematically, much as you can calculate blur by analyzing camera shake, and relating it to sensor size and pixel density.

    EVF: 2.36 million OLED, 0.005s lag

    What I want now is a toggle that would allow a one-button infinitely adjustable enlargement along with the ability to jump back to 1:1 with one push. It would function like a zoom lens.

    On a semi-related subject, the new FF mirrorless Sony's didn't get very good reviews in Dpreview, owing to continued issues with AF and a horrible JPEG engine (don't care personally), but the output from the sensors (RAW) is impressive.
     
    RichA, Jan 23, 2014
    #1
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  2. RichA

    PAS Guest

    My optical viewfinders have no lag.
     
    PAS, Jan 24, 2014
    #2
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  3. RichA

    Eric Stevens Guest

    That you are aware of.

    Of course there is a lag. The speed of light is not infinite, but
    clearly this does not matter. Yet, in response to my earlier post,
    nospam seemed to think that any lag in an EVF will always be
    intolerable.
     
    Eric Stevens, Jan 24, 2014
    #3
  4. RichA

    Guest Guest

    there is no lag in an optical viewfinder. whatever you see is the same
    with or without one.
    with evf, yes.
    obviously you can't avoid that.
    i never said that. have you been spending too much time with tony?
     
    Guest, Jan 24, 2014
    #4
  5. RichA

    Eric Stevens Guest

    Speed of light is finite.
    And with an optical finder.
    That's why there is a lag.
    In Message-ID: <> on
    Date: Fri, 24 Jan 2014 12:13:59 +1300 the following interchange took
    place:

    Eric Stevens
    I'm not so sure. There are cameras combining sensors and
    processors on one chip which can produce images several times
    faster than commercial frame rates.

    nospam
    doesn't matter.

    Eric Stevens
    While the interval between frames is real, ...

    nospam
    exactly.

    Eric Stevens
    ... it is so short that it cannot be detected by the human eye.

    nospam
    it can.

    Eric Stevens
    Are you saying that there is no limit to the ability of the eye
    to detect visual interuption? Surely not.
     
    Eric Stevens, Jan 25, 2014
    #5
  6. RichA

    Guest Guest

    nobody said otherwise.
    nope.

    the lag due to the speed of light is close enough to zero to be
    considered zero. it's nanoseconds.

    you are once again twisting and arguing on inconsequential details.

    the lag is also *identical* with and without an optical finder. there
    is no difference whatsoever.

    that is *not* the case with evf, nor will it ever be. evf will *always*
    have a latency. it may be short enough to not matter in most cases but
    it will matter in some.
    not one that anyone can see, not even you.
     
    Guest, Jan 25, 2014
    #6
  7. RichA

    Eric Stevens Guest

    Now you are slowly coming over to my point of view. There is a lag but
    eventually it will be possible reduce it to the point where it does
    not matter. Can we leave it at that?
     
    Eric Stevens, Jan 25, 2014
    #7
  8. RichA

    Guest Guest

    i said as much in my first post, which you obviously did not read.

    however, the lag will never be zero and will matter in some cases.
    those will be fewer and fewer as technology improves, but there will
    always be situations where it will matter.
     
    Guest, Jan 25, 2014
    #8
  9. RichA

    Eric Stevens Guest

    Again:

    In Message-ID: <> on
    Date: Fri, 24 Jan 2014 12:13:59 +1300 the following interchange took
    place:

    Eric Stevens
    I'm not so sure. There are cameras combining sensors and
    processors on one chip which can produce images several times
    faster than commercial frame rates.

    nospam
    doesn't matter.

    Eric Stevens
    While the interval between frames is real, ...

    nospam
    exactly.

    Eric Stevens
    ... it is so short that it cannot be detected by the human eye.

    nospam
    it can.

    Eric Stevens
    Are you saying that there is no limit to the ability of the eye
    to detect visual interuption? Surely not.
    ------

    I never got a response from nospam to my final question but he seems
    to be carrying on as though he really does believe that if there is a
    limit it is just below that set by the speed of light.

    I note that on the 25th Jan he wrote

    ".... evf will *always* have a latency. it may be short enough to
    not matter in most cases but it will matter in some".
     
    Eric Stevens, Jan 25, 2014
    #9
  10. RichA

    Guest Guest

    the question doesn't even make sense.
    and i said the same thing several days earlier too. in fact, i think my
    very first post in the thread.

    not that you actually read it.
     
    Guest, Jan 25, 2014
    #10
  11. RichA

    Eric Stevens Guest

    You've been saying it and I've been challenging it longer than that.

    You seem to be saying that EVF will always have a latency i.e. be too
    slow (as well as other things) to ever supplant through the lens
    optical viewing. I have been challenging that view. I expect that one
    of these days EVF will be largely indistinguishable from through the
    lens optical viewing. You have said there are theoretical reasons why
    this will not occur but have never explained what they are.
     
    Eric Stevens, Jan 26, 2014
    #11
  12. RichA

    Whisky-dave Guest

     
    Whisky-dave, Jan 27, 2014
    #12
  13. RichA

    Eric Stevens Guest

     
    Eric Stevens, Jan 27, 2014
    #13
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