On 10/27/2022 at 11:47 PM, Will Montgomery said:

Good question...In the still world, Panatomic X was the first X film in 1938. Then Plus-X, Super-X, Super-XX, Ortho-X & Tri-X. So there's a long tradition of X films just not sure where the original X came from. Xtra? Probably need a Kodak historian to let us know.

ok thanks

what does "X"means of  kodak 5222 DOUBLE-X?

who can tell me where can download the ShotPro  user manual in pdf?

thank you Phil Rhodes very much

when I adjust ALEXA white balance , it show  3200k+16.0cc.  what is 16.0cc? what is "cc"? 

Thank you all

who can recommend a book about the history of cinematography of cinematography technology?thanks

13 hours ago, Satsuki Murashige said:

Lower down the budget ladder, there’s the Panasonic EVA-1. It has a switch that removes the internal IR cut glass in the OLPF stack. Then you just have to add an IR pass filter in front of the lens that removes the visible spectrum.

15 hours ago, David Mullen ASC said:

There is an Alexa monochrome that can do IR, not LF, and two of the Panasonic Varicam 35's can be easily switched to IR. Don't know about the Red monochrome.

15 hours ago, Daniel D. Teoli Jr. said:

I had mine (Fuji and Sony) converted to 850nm. I tried color conversion IR with an M43 and didn't like it. But I was using it for IR flash photography in the dark. If I was looking for daylight IR, then I would have liked the color IR.

I also used the 850nm for video in the dark with a single IR light. I was going for a rough documentary look. If you want it lit nicely, then you will need a few IR lights if you are doing it in BW in the dark. But IR lights are $$.

As far as 'how to?' Lots of experimenting. But with digital , it could not be easier to see the what ifs.

Good luck!

thanks ,very important information for me. thank you very much

Alexa mini LF can Infrared photography?

who can tell me  which digital movie camera can Infrared cinematography? Alexa mini LF can do? if it can , how to do?

who now more about ACHTEL 9×7 65 Megapixel Motion camera?  it's price? and user manual?

10 hours ago, Bruce Greene said:

HDR? That will depend on the range if your display and the HDR standard you are grading to.

Suitable HDR displays currently cost about $30,000. Do you have one?

oh , my studio have one ,but I haven't really used it yet.   thank you 

20 hours ago, Bruce Greene said:

In a calibrated display, in a darkened room, white should be 100 nits or 29.2 foot Lamberts.

I want to go on ask , for the HDR monitor , the white also should be 100 nits or 29.2 fL? thanks

thank you  Bruce Greene， It is good for me!!!

who can  tell me how many footlambert the white bars used to determine the contrast in N color bar signal? I remember seeing in a photographer's manual that it was written 35 foot candle, but the foot candle was a unit of illumination, not a unit of brightness . If you measure brightness, how many feet of Lambert should it be?

thanks 

I want to know how the '800% ' is calculated? thanks

What is an 800% dynamic range and how it is calculated? thanks

David , thank you very much!

How do I add a 2.39-1 mask to ALEXA Mini, and the surrounding data can be displayed, but the area outside the screen is opaque?

the article "Cutting-Edge Clarity"of cinematographer magazine in december 2016 is talking about anglee's film Halftime Walk.

in this article Technical Supervisor Ben Gervais talk about motion blur and judder, I am really confused about the difference between motion blur and judder. Or is there a difference?

judder is due to the 24fps of film? or motion blur is only about 3D?

please give me a clear answer, thanks!

thanks , thanks to David Mullen ,thanks to Simon Wyss. :D

I want to know the means of the letter "X" in the kodak Tri-X film. thanks!

thank you

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!