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Shots not as good as live view

  • 24-05-2010 11:25pm
    #1
    evensteve
    Registered Users Posts: 14 ✭


    Looking for a bit of advice here. I recently acquired a s/h Canon 40D and a 70 300 lens. I went shooting the moon, using the magnified live view function to set up the focus. However, none of the shots that I took, using a variety of aperture and speed settings looked quite as good as the magnified live view image. I am using an ISO setting of 100 and the best quality image (as far as I can tell) setting [L]. The camera is on a tripod. The lens/camera is obviously capable of producing a high quality image, so why can't I capture it?


Comments

  • #2
    swingking
    Registered Users, Registered Users 2 Posts: 4,258 ✭✭✭swingking


    Are u using a timer or wired remote to trigger the shutter ?


  • #3
    evensteve
    Registered Users Posts: 14 ✭evensteve


    Neither. Just clicking the shutter button


  • #4
    swingking
    Registered Users, Registered Users 2 Posts: 4,258 ✭✭✭swingking


    That would cause blurring. Use the timer on the camera and that means u won't have to press the shutter button at the time of exposure which causes motion blur. You set the timer, push the shutter and there is a slight delay before the shutter is tripped


  • #5
    hbr
    Closed Accounts Posts: 760 ✭✭✭hbr


    evensteve wrote: »
    Looking for a bit of advice here. I recently acquired a s/h Canon 40D and a 70 300 lens. I went shooting the moon, using the magnified live view function to set up the focus. However, none of the shots that I took, using a variety of aperture and speed settings looked quite as good as the magnified live view image. I am using an ISO setting of 100 and the best quality image (as far as I can tell) setting [L]. The camera is on a tripod. The lens/camera is obviously capable of producing a high quality image, so why can't I capture it?

    This was shot on a Canon 500D with a cheap Sigma 70-300mm lens.
    Are your shots better, worse or about the same?

    717557EF1D9347078208D2C33FF8EE2B-800.jpg


  • #6
    evensteve
    Registered Users Posts: 14 ✭evensteve


    The best of them is about the same. The live view image on the display is even better though.moon.JPG
    How do you insert an image here?

    114895.JPG


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  • #7
    hbr
    Closed Accounts Posts: 760 ✭✭✭hbr


    evensteve wrote: »
    The best of them is about the same. The live view image on the display is even better though.moon.JPG

    That's about the best I could get out of that Sigma lens, even after
    a bit of sharpening in PP.

    Shooting in raw and then viewing the picture on a nice big
    high-res monitor is probably as close as you can get to
    seeing what the sensor sees at exposure time.

    The 3in screen is not going to be quite as good, even you you
    zoom in. You can probably see imperfections in the image when
    viewing on a bigger screen which are not visible on the smaller
    screen.

    Autofocus works differently in live view mode. Try using manual
    focus to see if it works better. You could also try using the timer
    or remote shutter release to reduce camera shake. This is not
    all that critical for moon shots because the moon is very bright.
    It also moves through the field of view quite quickly at 300mm.

    I used a tripod and a wireless shutter release for the shot above.
    Shutter speed 1/125s f/10 ISO 100. IIRC, I used live view and
    manual focus.


  • #8
    evensteve
    Registered Users Posts: 14 ✭evensteve


    Thanks HBR, that sounds like good advise. The skies look to be clear again tonight, so I'll have another go!


  • #9
    enda1
    Registered Users, Registered Users 2 Posts: 5,166 ✭✭✭enda1


    Seeing as the moon is really quite far away, would you not just set the camera to manual focus and the lens to infinity, then use a 5 second timer on the shutter release (if you don't have remote etc.)?

    Never done it myself (shoot the moon, stars etc.) but seems logical no?


  • #10
    hbr
    Closed Accounts Posts: 760 ✭✭✭hbr


    enda1 wrote: »
    Seeing as the moon is really quite far away, would you not just set the camera to manual focus and the lens to infinity, then use a 5 second timer on the shutter release (if you don't have remote etc.)?

    Never done it myself (shoot the moon, stars etc.) but seems logical no?

    For all practical purposes, the moon is at infinity. The trouble is, it is not
    that easy to find infinity, especially on modern lenses which often have little
    or no focus distance markings. evensteve's method of using live view is
    quite effective in practice. I find it quite difficult to focus at 300mm when
    live view is at maximum zoom. No doubt I would fare better if I wasn't
    using a €25 Argos tripod.


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