Manual REDAlert!

[Alexej]

Hi! I could not find a help option in RedAlert or at least a manual. Ive got some question considering sertain options/funktions. Is there something to download somewere?
Har-Har!

:help:

 

[Shawn Booth]

Hi! I could not find a help option in RedAlert or at least a manual. I have some questions concerning certain options/functions. Is there anything to download somewhere?
Har-Har!

:help:

Not really, "the forum is kinda the manual". What are your questions?

 

[Alexej]

Not really, "the forum is kinda the manual". What are your questions?

Hi Shawn, thanks for your quick reply! We shot some test footage on the red-one and now i play around with it in the red-alert. Using the histogram and a waveformer i can particularly see what changes some options produce. But its interesting to know precisely what the names stay for (what its really made for). I find it important to understand which tool combos are "officially" correct to achieve good results.

By functions like ISO, Exposure, Saturation, ect. its quite clear but i don`t really understand what is the "technical" meaning of Contrast & Brightness? Or to be precise, how they work together with ISO factor? After all, there is a gamma curve for fine tuning or do i misunderstand the workflow?

We made some measurements on the ISO factor of the camera and our result was that the cam shoots with around 160-200 ISO(ASA) (tendency to lower ISO (i think its a good base). So how is it possible to turn (official) ISO 320 to 2000?

Anyway i would like to know what for are the following functions, and the reference of the accordant values:
- OLPF Compensation
- DRX
- Tint
- Matrix On/Off button

Hope i did not produce an overflow of silly question, cauls I admire your time.

 

[Uli Plank]

OK, I think I can answer the listed ones, but I'd like to read a perfect explanation for the interplay between exposure and brightness myself.

- OLPF compensation is some amount of sharpening to counter-act the softening from the optical anti-aliasing filter (like it's built into many video cams right from the start). You can leave it off and do some sharpening with similar tools in post, like unsharp masking, but it's a well implemented filter and 'medium' is a good starting point.

- DRX is Dynamic Range eXtension. It's copying information from a non-saturated channel into a saturated one (if there is any). So, you can recover some hightlight detail when one or even two channels were blown out without getting a tint in highlights. A trick known to colorists for years, but very well implemented here, practically a no-brainer were we needed a lot of steps with other software. Just decide your Lelvin and exposure first, staying away from the right edge of the histogram, then turn up DRX until you like the result. I think I read a very detailed explanation somewhere by Adam Wilt, but can't find it right now.

- Tint is 'turning' the colors around the wheel, it works more or less like the old American TV sets tint.

- Matrix on or off is activating or de-activating all color 'wizardry', if it's off, colors are left like they came from the camera.

 

[Alexej]

OK, I think I can answer the listed ones, but I'd like to read a perfect explanation for the interplay between exposure and brightness myself.

- OLPF compensation is some amount of sharpening to counter-act the softening from the optical anti-aliasing filter (like it's built into many video cams right from the start). You can leave it off and do some sharpening with similar tools in post, like unsharp masking, but it's a well implemented filter and 'medium' is a good starting point.

- DRX is Dynamic Range eXtension. It's copying information from a non-saturated channel into a saturated one (if there is any). So, you can recover some hightlight detail when one or even two channels were blown out without getting a tint in highlights. A trick known to colorists for years, but very well implemented here, practically a no-brainer were we needed a lot of steps with other software. Just decide your Lelvin and exposure first, staying away from the right edge of the histogram, then turn up DRX until you like the result. I think I read a very detailed explanation somewhere by Adam Wilt, but can't find it right now.

- Tint is 'turning' the colors around the wheel, it works more or less like the old American TV sets tint.

- Matrix on or off is activating or de-activating all color 'wizardry', if it's off, colors are left like they came from the camera.

Thanx for your detailed explanation! Its funny that your camera is called after Dziga Vertov. Coincidentally my great-grandfather was quite well acquainted with him. During my studies I wrote even an essay about the history of the young soviet film. One chapter was dealing with Vertov`s role and his theories.
Is it actually possible to write here in German? And still one question, have you been at the last Hands-On-HD in Hanover?
Greets

 

[Uli Plank]

Yes, I've been teaching the Red class at "Hands on HD".

And I wrote the theoretical part of my diploma in cinematography on Vertov.

I don't think it would be polite to converse in German on this forum, but I'll send you a PM.

 

[Yann Mongrain]

Still it would be nice to have a Manuel

Still it would be nice to have a Manuel

I know that the user group is the manuel foe RED ALERT (yes I spell it out and not use RA). But still it ould be nice to have some sort of basic manuel that explains all the features. Instead of having to hunt and peck for it on the internet.

Just a suggestion

;-)
Ian

 

[simonpeterarnold]

I know that the user group is the manuel foe RED ALERT (yes I spell it out and not use RA). But still it ould be nice to have some sort of basic manuel that explains all the features. Instead of having to hunt and peck for it on the internet.

Just a suggestion

;-)
Ian

But thats the Red way.

 

[Uli Plank]

I've written a manual in German now, it will be part of an upcoming book, but I will give it to forum folks as a teaser for the book if you can read German. Please PM with your e-mail if you want it.

 

[JonathanF]

I'll agree that a manual would be REALLY helpful as we are working to process hundreds of takes from a recent shoot and I'd really like one of our in-house engineers to start building tools to automate this. Since the engineers know about as much about this stuff as my dog a manual would eliminate a lot of hand holding and stupid question answering.

As we like to say in software development, it's not a product till you supply documentation (and an API, thanks for that).

 

[hussam]

hi every body , did any one khnow how i can save the file that have extention (.R3D)
with redalret program

 

[Uli Plank]

You can't. What do you want to do?