shutter speed info?

Discussion in 'Photography Beginners' Forum' started by gtaylor, Mar 11, 2008.

  1. gtaylor

    gtaylor TPF Noob!

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    Is the "rule of thumb" actually this:

    1/focal length; i.e., for a 200mm lens , the fastest shutter speed should be 1/200?

    I find that trial and error usually gets me the results I want, but I'd like a somewhat definitive method to assure "stop action" shutter speed.

    thanks
     
  2. Socrates

    Socrates TPF Noob!

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    That rule of thumb is valid for 35mm film and professional SLRs with 24X36mm sensors. With consumer digital SLRs that have smaller sensors, you want to multiply the focal length by 1.5 before you apply the rule.

    Also, this is not a rule-of-thumb for the "fastest" for stop action but for the "slowest" that a normal human being can hold a camera steady.
     
  3. gtaylor

    gtaylor TPF Noob!

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    *******

    That's exactly what I needed to confirm. gracias!
     
  4. JerryPH

    JerryPH No longer a newbie, moving up!

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    Strong factors to also consider will be:
    - equipment (ie tripod or not)

    - if no tripod, photographer teechnique and ability to hold a camera well (ie: steady hands, leaning against a wall, etc...)

    - VR or IS to stabilize imgages.

    These factors will also severely impact how slow you can go before images start to blur more than an acceptable level.
     
  5. Warhawk

    Warhawk TPF Noob!

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    In general, i try to keep my shutterspeed atleast at 1/125th of a sec when im holding it.

    On a tripod i try for at least 1/60th of a sec if the object im shooting is standing still, otherwise 1/125th of a second!
     
  6. TCimages

    TCimages TPF Noob!

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    You may actually mean this, but in the example you provided, 200 is not the fastest, but the minimum recommended for that focal length.
     
  7. Warhawk

    Warhawk TPF Noob!

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    I also think he ment the minimum speed
     

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