another dilemma

Color

Color

Active member
okay, i had planned on buying some 250d for 16mm for some time now. then, i thought to myself "okay, a lot of my lenses minimum aperture is 16. if im shooting in the day, using the sunny 16 rule (just for example purposes), shooting at 24fps with a 180 degree shutter, so being at 1/48th of a second, its going to be wayy too bright. its nowhere near 1/250th of a second"

does this mean im gonna need some 50d to shoot in the bright daylight?? i thought the sunny 16 rule was always right, which woule mean that i would shoot at f/16 at iso 50 at fps 1/25th of a second, and then i would have no room to open up my iris at all. MUST I DO 50D? and even if i take this route, i cant open up til later in the day for a good DOF?

benni
 
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You don't necessarily have to change your stock to fit the light - you can add ND filters when you run out of iris or want shallow DOF.

I don't know how much you know about filters, so I'll start basic, apologies if you already know all this;
Neutral Density filters are neutral grey glass or plastic. Neutral meaning they do nothing to the colour of the scene, and density as in eating light.

They are available in several strengths, usually 1, 2, 3 & 4 or .3, .6, .9 and 1.2.
This means they eat 1, 2, 3 or 4 stops of light respectively. They can also be stacked up to increase the strength.
Also available are ND grads, These are ND filters where one end is darker than the other. They are used to pull a bright part of the scene down to even the exposure out.

I would suggest you use either a mattebox with a filter slot or a square filter system such as the Cokin (cheaper) or Lee (higher quality, but you pay for it)
 
wow, that is really lame. ive pretty much gotta shoot 50d to have any flexibility, and with all those ND filters, the vf will be really dark
 
Well, I wouldn't have called it lame...
If it's bright enough to require ND's, a couple of stops shouldn't cripple the VF too badly.
The advantage of faster film and ND's is you can take the NDs off and shoot in lower light if you need to.
The disadvantage is somewhat more visible grain and the minor bother of using ND filters.

I frequently use them for stills work, and they dont make as big a difference to the viewfinder image as you might expect.


As you're likely to burn quite a lot of film, why not get a can of 50 and 250 and have a play?
 
because fuji 250d is $16 bucks at a website. im not ready to throw 30+ bucks on a can until i need to. THEN, i will shoot 50d. would it be okay if i put the ND over the lumigrid, pointing at the sun to get an accurate reading with the ND filters on the cam??

also, at ISO 250 at 24fps im getting readings up to f/54. i cant find a website that tells me how many stops that is over f/22, or how many 1/2 or 1/3rds of a stop it is over that. can anybody find one?
 
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