Posted 29 December 2006 - 05:51 PM
Posted 31 December 2006 - 12:28 PM
Posted 31 December 2006 - 12:45 PM
How many color stocks do you want to deal with? In theory, you could just get the fastest stock, 500T, for the low-light work, and use an 85ND filter for the day scenes, but then you'd have the grain of a 500 ASA stock in your day scenes when you probably had enough light to use a slower-speed (and thus less grainy) stock.
And if you want to use two stocks, 500T for the low-light stuff and then a slower-speed stock outdoors in order to get less grain, do you want to use a daylight-balanced stock (50D or 250D) or a tunsgten-balanced stock (100T or 200T) plus an 85B filter? (You will need some ND filters either way -- 85ND combos for the tungsten stock, straight ND's for the daylight stock.)
The advantage of a tungsten stock for the day work is mainly that: (1) if you order too much, you could use it for a tungsten-lit interior scene assuming you can get the light levels high enough for the slow speed; (2) you can pull the 85B filter for a very blue-ish look in daylight.
The advantage of a daylight-balanced stock is that you won't have to look through an orange correction filter in the viewfinder (the 85B) and it will have a slower blue record and thus less grain in the blues (like skies). And if you need the speed of 250D (250 ASA) you will get less grain than using 500T stock with an 85B (which makes it 320 ASA effectively) and more speed than 200T with an 85B (which makes it 125 ASA effectively.)
The stocks all look similar these days so I wouldn't sweat too much over 100T versus 200T, or 100T with an 85B filter (effective 64 ASA) versus 50D. At this stage of your career, keep it simple and you'll learn more as you work with these stocks.
Take your light meter around with you so you can learn what sort of light levels to expect for different ASA stocks. You may think that 50D will be fast enough because you'll be outside in sunlight, but you may find that in overcast weather under a canopy of trees, you need 250D stock.
Posted 31 December 2006 - 11:12 PM
Unfortunately, shooting in low light interiors will not increase your depth of field. Rather, you will get a significant reduction in depth of field compared to a brightly lit exterior location.
Posted 01 January 2007 - 07:19 PM
Edited by J. Scott Portingale, 01 January 2007 - 07:20 PM.