View Full Version : Outdoor with 100ASA?
gbalaji
09-27-2008, 09:19 AM
David,
Sorry if the question has been previously asked. I cant able to find answers.
Red says that Red Sensor was rated for 320ASA @ 5000K Color Temperature. I basically suggest my DPs to control outdoor with Exposure and Filters.
Is it advisable to go at 100ASA on Outdoor Hot Sunny Day. What is the principle of Reds 320ASA rated?
Thanks in advance.
Stephen Williams
09-27-2008, 10:13 AM
Hi,
No it's not, Rate the camera at 320, you could also use the search functin of this forum.
Stephen
Graeme Nattress
09-27-2008, 10:14 AM
Going to ISO 100 will only result in totally clipped highlights with no chance of recovery. Stay at least ISO320, but I'd experiment up to ISO800 depending on your tolerance for noise, and the nature of what you're shooting.
Graeme
David,
Is it advisable to go at 100ASA on Outdoor Hot Sunny Day. What is the principle of Reds 320ASA rated?
Hot or cold does not matter here!
Only the contrast of the scene you want to photograph matters.
Is there a lot of WHITE in it and deep shadows where you really need to see the details ?
If YES, it sound silly (because obviously you seem to have too much light)
but the higher you rate the ASA/ISO in the cam,
the more pleasant results you will have BUT then you meet grain, so stop going high in ASA before you see grain that you do not like.
Good luck and why don't you try Ultracontrast 1/2 from Tiffen, that helps too, just do not let the light reach the filter.
PS; 100 asa setting in Cam is only good for dull foggy and no-contrast day. NOT your case
gbalaji
10-07-2008, 10:26 AM
Thanks.
Michael Hastings
10-07-2008, 11:19 AM
Going to ISO 100 will only result in totally clipped highlights with no chance of recovery. Stay at least ISO320, but I'd experiment up to ISO800 depending on your tolerance for noise, and the nature of what you're shooting.
Graeme
What did you think of Rodney Charters saying it really is best at 250?
Graeme Nattress
10-07-2008, 11:22 AM
If you ETTR, it doesn't matter what ISO you set, but at ISO250 you've got negligible highlight room.... but therefore if you ETTR, then you're fine.
Basically, each stop you go above 320 you get a stop better highlight, stop worse shadows. Similarly each stop you go below 320 a stop better shadows, stop worse highlights. If you ETTR then you've got the "best" you can... (within reason - there may be times you sacrifice some highlight to get better shadows if those shadows are more meaningful).
Graeme