Flash problem D300

crownfield <crownfield.RemoveThis@verizon.net> wrote:
> In article <tnhb95-vc.ln1.RemoveThis@ID-52418.user.berlin.de>, ozcvgtt02
> -Chris Malcolm <cam.RemoveThis@holyrood.ed.ac.uk> wrote:

> -~44%, a bit over a stop difference overall.
> -± ½ stop ... I understand even slide film can tolerate that much.

> yes. But, if you are being critical,
> 4x5 ektachrome, +- 1/3 stop is excessive,
> FROM one part of the chrome to another.

If you are being critical, you use a studio with proper studio
lighting.

> -Except that then the flash is farther away and thus even more a
> -point source of light ... whch gives harsh light.

> no one" by three" flashhead gives anything but harsh light,
> unless it is reflected off something much larger.

.... or re-transmitted (see softbox). Yep.

> Also, after equal distances, increasing the distance helps make them
> closer to equal when you compare front of scene to back of scene.

Ah, but if you move the flash to the side of the subject
(i.e. in front of the camera, though outside your field of
view) ...

-Wolfgang

In article <danh95-h8s.ln1.RemoveThis@ID-52418.user.berlin.de>, ozcvgtt02
@sneakemail.com says...
-crownfield <crownfield.RemoveThis@verizon.net> wrote:
-> In article <tnhb95-vc.ln1.RemoveThis@ID-52418.user.berlin.de>, ozcvgtt02
-> -Chris Malcolm <cam.RemoveThis@holyrood.ed.ac.uk> wrote:
-
-> -~44%, a bit over a stop difference overall.
-> -± ½ stop ... I understand even slide film can tolerate that much.
-
-> yes. But, if you are being critical,
-> 4x5 ektachrome, +- 1/3 stop is excessive,
-> FROM one part of the chrome to another.
-
-If you are being critical, you use a studio with proper studio
-lighting.

as I do.

-
-> -Except that then the flash is farther away and thus even more a
-> -point source of light ... whch gives harsh light.
-
-> no one" by three" flashhead gives anything but harsh light,
-> unless it is reflected off something much larger.
-
-... or re-transmitted (see softbox). Yep.
-
-> Also, after equal distances, increasing the distance helps make them
-> closer to equal when you compare front of scene to back of scene.
-
-Ah, but if you move the flash to the side of the subject
-(i.e. in front of the camera, though outside your field of
-view) ...



the ratio (DisToRearOfScene / DisToFrontOfScene)
is a good measure of lighting difference.


-
--Wolfgang
-

--
Bob Crownfield
crownfield.RemoveThis@verizon.net