The long, long f-stop

June 30, 2004

Spider-Man 2 director Sam Raimi wants to mount cameras above every major U.S. city and shoot a frame a day for 1,000 years to record a movie showing how each city crumbles into decay after Jesus comes back.

I totally made up the Jesus part, but Mr. Raimi really does want to build what he calls “The Century Cam” even though it would actually shoot a millennium’s worth of footage. 1,000 years of a frame a day would create a 4-hour film, or one roughly 3-hours shorter than the director’s cut of The Lord of the Rings: The Return of the King.

“
”

jay lewis added:

I would like to let you know we have just visited your website. Very nice site. Doubling the time is an increase in exposure corresponding to one f/stop, not allowing for reciprocity failure. “Typical” b/w reciprocity is add one f/stop at one second, two f/stops at ten seconds, or three f/stops at 100 seconds. Varies by film, of course.
F/stop numbers double every other f/stop, as f/stop are measured by *diameter*, (actually the focal length divided by the diameter), but admit light as a function of *area*. Double the diameter and you increase the area 4x, or two f/stops. If that makes sense.
I find it simplifies things to do the calculations in base eight using chinese algebra…

Posted on November 9, 2004 9:28 PM

Post a comment






Posted on June 30, 2004 at 10:13AM • 1 Comments • Permalink • Read more in Art for Art's Sake

G L A S S D O G
Open Feeds
LaConCon.com

LaConCon.com

"Lance Arthur's Conspicuous Consumption" is a site about stuff — stuff to buy, stuff to use, stuff to look at and stuff to dream about.

Sound advice

A mug for your mug

Prince prints

Barrelrolling

Road warrior

Cabinet membership

Rock this

Ruglorn

Light suckers

What's that smell?

Pasta doodles

Litter buds

Oven little

Little lights

A close shave

Handy Vase

Keep Shoes

Reading into it

Thin toast

Paper table

Flickr
Close Feeds