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Video Gear and Technique / Archived topic

Video Newbie. How Much Light?

Started by matt215 ·

  • 7Posts
  • 7Replies

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Video Newbie. How Much Light?

7 posts
  1. New to video. I'm wondering how much light I need to shoot macro video. I know, I know, everyone always says "as much as you can get." I have a Sola 800 and a Sola 2000 with a Canon 5d mk3. Are those 2 Sola lights enough? I figured that since the Canon 5d 3 is pretty good at high iso, I could just bump the iso to about 800 or maybe even a little over 1000 if I needed it. What do you think? Do I have enough light?

  2. For macro the Sola 800 will be enough and you will need to dim the 2000 without raising the ISO.
    Chris

  3. Really? I've always heard people talking about light, light, and more light when it comes to video. Anyway, that's good to hear.

  4. It's true that you need a lot of light if you're shooting wide angle and trying to balance with ambient light, but for macro you're so close to the subject that you need less light.

  5. Thanks Ferg42 and ChrigelKarrer! Y'all just made my day, and my wallet thanks you...

  6. both of your lights will be almost useless on daylight conditions and medium or wide angle but for macro with distances less than 2 ft they are fine.

    I made some videos with the D7000 20-30 ft down on a sunny afternoon in the crystals waters of Sardinia without any artificial light

    and it worked fine: http://youtu.be/wCd4vUC-DEQ the goat fish at at 1:00 and the only reason to use a video light under this conditions is to get back the original colors.

     

    To get enough power for daylight conditions, a nice wide 100°+ beam and more than 2 ft distance you need at least 2 x 8000 lumen LED / 2 x 100W Halogen or 2 x 50W HID light!

    You can see a example while testing my GoPro Hero2 and one of my mangrove 4320 Lumen LED light in this video:

    Chris

  7. The notion that macro requires relatively little in the way of Lumen power is nonsense (as is the several multi-power settings gimmick of some already low-power "beginners" lights)...particularly if you are shooting "wide-macro" in bright ambient daylight conditions.

     

    To maximize image quality ISO needs to be low; and for good DOF (particularly with large sensor cameras) the f-stop needs to be around f11-16 (any higher risks diffraction effects).

     

    If you are using the same lights for wide/wide-macro the beam angle needs to be at least 100 degrees. I would not consider anything less than 4000 Lumens LED.

     

    Forget Halogen and HID as they have poor Lumen per watt efficiency.

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