View Full Version : hmi vs. sun
While this may not be a specific enough question to warrent specific answers. I am wondering what wattage of hmi is need to compete with the sun, for example to light a subject a stop or two above a sky. What would it take to darken the sky in this way during midday?
09-06-2004, 02:46 PM
An alternative to lighting the subject - if you could find a way to compose your shot so the subject doesn't come in line with the sky, you could use an ND grad filter...
09-06-2004, 06:41 PM
Hard directional light as strong as the sun? Have you ever considered mirrors? Work like a charm.
09-06-2004, 08:58 PM
Wouldnt a couple 1k 's be good for DV?
09-06-2004, 09:25 PM
A 1k tungsten will show up on your subject, especially on an overcast day, but the color will be wrong, and once you gel it blue it'll be effectively a 250watt light, which will be of limited use in daylight.
For directional hard light you can probably get the effect you want with a 1200 HMI. *If you want to run it through a softbox or other diffusion, that's when you start getting in the realm of 4k's and 12k's...
09-07-2004, 01:13 AM
You can always multiple reflectors or perhaps even a few mirrors focused into one silk will bring you inexpensively to what you want - a stop or two over even the sun.
09-07-2004, 05:46 AM
1.2k HMI PARs through a butterfly, or just bare. HMI PARs are always my first choice, never fresnels.