YongLee

i have heard about the "sweet spot" of camera lens when using the iris. who can tell me what is the "sweet spot"? is it right about "the sweet spot is the biggest iris reduce three ”？thanks!

i hold David Mullen's great answer!

hi, everybody i want to see my logic footage direct to 709 LUT, which video player can do it ? thanks!

thanks to David :D

http://www.marshallmonitors.com/products/monitors/images/falseCol_images.jpg this image is about expose level judged by false color. my question is whether it is alexa or red false color? the false color is not the same as expose to the Caucasian or Mongolia? who can give me a accurate image indication? In my experience，when i expose the face, the correct level is the highlight of face appear pink ，is it right? thanks!

thank you Mark, very good answer!

thank Robin R Probyn

great answer David, thank you very much!

as david mullen said"LUT is covert log gamma (S-Log, ARRI Log-C, etc.) to a display gamma such as Rec.709 or P3". ​my question is , when i shooting at scene , how to choose the display gamma ? if my footage will be screened in the theater, i should choose Rec.709 or P3? if i choose P3, the footage Is the same as the effect in the theater?

thank sooknanan, but I think the false color was closely related to the view mode , I read the "http://www.red.com/learn/red-101/exposure-false-color-zebra-tools",it note so. when view mode from redcolor3 to raw , the false color would change for a same exposure sence. I hope get more authoritative answer.

haha , it's a good job

hi , I wonder if the false color effected by the view mode. the false color will change when view mode from ITU790 to logc or raw ? false color in redone is diffrent to in alexa ? thanks!

i want to know , for a video camera ,or a digital movie camera, how can effect its latitude? iso or gamma? i want to know ,what is difference between the latitude and the dynamic range about video camera? thanks!

hope!

My arri 535b camera due to accidental collision, shutter damage, i want to replace the shutter, I do not know where to buy. who can tell me?

thanks , everybody! : :rolleyes:

i know the"the inverse sqare law " of light ,but i think it is apply to spot light only, for large surface light , it is not right. who can tell me how the"the inverse sqare law " of light to use in lighting film sence? thanks!

thanks, then , AG-HVX200 can catch up with SONY F900?

HI everybody, someone said the image shooted by Panasonic P2 can catch up with sony F900, is ture? if not ,then P2 can get 2K? or 4K? thanks!

i shoot a boy running , but i want to product a slow effect , a effect of the boy puts forth his strength. thanks!

hi , where can download the software only for pocket pc? thanks!

hi , who can tell me the visual effect of different fps? where can see the video about it?

hi , who can tell me the effect of diffrent fps ? where can see this video about it in internet?