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Thread: Focusing tips for night photo on slow lens

  1. #1

    Focusing tips for night photo on slow lens

    I am having a bear of a time focusing my 90 SA f8 for night photography lit only by streetlights.

    Do you have any tips or gear that might make this task easier?

    My current game plan is to arrive on location 30min before sundown set up the shot and wait until a proper night sky appears. However this too poses unique problems because it would not be factoring in issues like lens flare or lights in the shot that might need blocking.

  2. #2

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    Re: Focusing tips for night photo on slow lens

    Which focusing aid are you using? How do you find focus?

  3. #3
    Tim Meisburger's Avatar
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    Re: Focusing tips for night photo on slow lens

    If possible, you can place a point light source at your subject (like an LED flashlight) and focus on that. Or focus on one of the streetlights, if the will work.

  4. #4

    Re: Focusing tips for night photo on slow lens

    I am focusing thought the GG it does have a plastic Fresnel but it is still very dim

  5. #5

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    Re: Focusing tips for night photo on slow lens

    Led flashlights and/or green laser pointer and. 90mm 4.5 by nikkor or rodenstock

  6. #6

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    Re: Focusing tips for night photo on slow lens

    If you're focused during daytime, you'll be focused when the sun goes down.
    Artificial lighting though presents issues you are wisely considering.
    This site is pretty good for info--
    http://www.thenocturnes.com/
    Also check out Andrew Sanderson's book Night Photography which presents challenges and solutions
    Have fun!
    I steal time at 1/125th of a second, so I don't consider my photography to be Fine Art as much as it is petty larceny.
    I'm not OCD. I'm CDO which is alphabetically correct.

  7. #7

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    Re: Focusing tips for night photo on slow lens

    If your doing a landscape focus on any bright light in the distance and that should be infinity.
    Stop down if desired, check the focus again.

    Open the lens up, re-compose without touching the focus, then stop down again.

  8. #8

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    Re: Focusing tips for night photo on slow lens

    Quote Originally Posted by RodinalDuchamp View Post
    I am focusing thought the GG it does have a plastic Fresnel but it is still very dim
    That's nice. Are you using a focusing aid (loupe? In-line or reflex viewing hood?)?

  9. #9

    Re: Focusing tips for night photo on slow lens

    I'm using a loupe and dark cloth only. I do have an inline hood but it is cumbersome.

  10. #10

    Re: Focusing tips for night photo on slow lens

    Quote Originally Posted by Liquid Artist View Post
    If your doing a landscape focus on any bright light in the distance and that should be infinity.
    Stop down if desired, check the focus again.

    Open the lens up, re-compose without touching the focus, then stop down again.
    Well I'm using a wide angle lens. I don't think focusing to infinity will allow everything to be in focus at the foreground

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