Welcome to our community

Be a part of something great, join today!

  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Scarlet For Beginners

Michael Olsen

Well-known member
Joined
Mar 4, 2009
Messages
1,020
Reaction score
0
Points
0
Hello all!

I'm very new to these forums and to cameras in general. Needless to say, this is a fantastic place to learn - the number of industry professionals on here blows me away. And the way the RED team interacts with its customers, both existing and prospective should really be a model for other companies.

However, as a newcomer, it can certainly be overwhelming. I quickly realized that I needed some help if I were to remember anything I read on here. So, I started writing down what seemed to be important key points as I browsed around and read through discussions.

After reading some of the posts here in the Scarlet section, I figured I might be able to save some people some time by offering my notes. They are not at all inclusive - there's nothing here about how to change lens mounts, how to achieve 35mm DOF on a 2/3" sensor, or even what the difference is between an f stop and a T stop (which is not to say that there couldn't be in the future...). But it does summarize a lot of the basic questions I had about the camera system. It's certainly not written in stone and, while I've checked with a few knowledgeable individuals privately about its accuracy, I understand it may need some changes. Indeed, I hope this post can become a sort of "living document" as new topics of discussion are brought up and as system specs are altered and announced.

If you see something wrong or see something you'd like added (or removed) just say so in the thread or by PM. I'll get it taken care of ASAP.


:shocked:
WARNING:
This is speculative information about products that are still unavailable. The information below may not apply to the final product.


What is Scarlet?
The RED Scarlet is a part of the Digital Still and Motion Camera (DSMC) system. It is a video camera that also takes high quality still images.

What variations are planned for Scarlet?
RED has announced four variations.
  • 2/3" sensor fixed lens camera
  • 2/3" sensor interchangable lens camera (referred to as the "Cinema" from now on)
  • Super 35 (S35) sensor interchangable lens camera
  • Full Frame 35 (FF35) interchangable lens camera.

What do the 2/3", S35, and FF35 mean?
These designations refer to the physical size of the optical sensors in the cameras, measured from one corner to another. S35 relates to the size of Super 35mm film, and FF35 relates to Full-Frame 35mm film.

  • 2/3" - 10.1mm x 5.35mm
  • S35 - 30mm x 15mm
  • FF35 - 36mm x 24mm

What does the size of the sensor matter?
The sensor is essentially the camera's eye. In general, as sensor sizes increase, image size and detail increases.

Also, the size of the sensor impacts how a final image will be reproduced when using certain lenses. For example, using a lens designed for a 35mm film camera on the 2/3" Scarlet will result in significant cropping. The image recorded will only be the middle center section of what the lens is transmitting because the 2/3" sensor is smaller than that of a 35mm camera. This is akin to looking at a page of text through a paper towel tube and then a straw. The paper towel tube allows you to see more of the text - whole words, likely. The straw shows the same image (there has been no zooming in or out), simply a smaller version of it - letters instead of words.

Some cameras have a system of sensors known as charge-coupled devices (CCDs) in which the light entering the camera from the lens is split by a prism into the red, green, and blue spectrums, each of which hits a separate sensor. The camera's software then compiles the three images into a single full-color image which is then recorded.

Other cameras, like the RED lineup, use a single complementary metal–oxide–semiconductor (CMOS) sensor which "sees" all three colors of light in a "Bayer pattern" - one red, one green, one blue, one green, and so on -and records them on all on one chip.

Why CMOS instead of CCD?

CMOS provides a number of advantages over CCD technology, but also has drawbacks of its own.

RED opts for CMOS as that is where we have the expertise and gurus, and for price, performance, heat, and size issues.

Because of the CMOS, we can offer much faster fps.

We use a Bayer Pattern as it is still the best pattern for a colour filter array that offers the best perceptually relevant resolution to the viewer, in the most photosite efficient manner. There are two greens to ensure you get a good resolution output, not to increase sensitivity, by the way.

The negatives with CCD can be blooming and streaking. You don't get the streaking on a strong light source with the CMOS.

We use an Optical Low Pass Filter (OLPF) to ensure negligible aliasing. Aliasing can be a real problem when not addressed, or if bad in-camera downsampling is used.

Graeme


So what's the difference between all the models?
Mostly a combination of sensor sizes, resolution options, and frames per second (fps) options.

The fixed and cinema Scarlets have essentially the same technical capabilities.
  • They can shoot 3K (3072x1728) RAW up to 120 fps or Full Frame 1080p RGB up to 30 fps.
  • They offer 16:9, 2:1, and 2.4:1 aspect ratios.
  • Both provide for Time Lapse and Ramping (changing frames per second on the fly).
  • Both use REDCODE 42 to encode.

The S35 and FF35 are also very similar.
  • They both shoot FF1080P up to 30 fps, 2K (2048x1152) up to 72 fps, and QuadHD (3840x2160) and 4K (4096x2304) up to 30fps. However, the S35 may shoot 5K (5120x2880) at 30 fps, while the FF35 may shoot 6K (6144x3456) at 30 fps.
  • They offer 16:9, 2:1, 2.4:1, and custom aspect ratios.
  • Both provide Time Lapse.
  • The S35 uses REDCODE 80, the FF35 uses REDCODE 100.

The 2/3" and S35 cameras used the Mysterium-X sensor, the second generation of sensors. The FF35 will use the Mysterium Monstro sensor, the third generation of sensors. (The Mysterium sensors are the first generation and are currently in use in the RED ONE camera.)


What's this about a fixed lens? Can I take it off and use a different lens on it if I wanted to? Or use the fixed lens on a different camera?
The 2/3" fixed lens camera has a fixed lens. It cannot be removed. You cannot take it off to replace it with another, or to use it on another camera. From the, erm, fingers of Jim Jannard:

Fixed means fixed.

Jim

Not exactly sure why the reason matters... but the fixed lens in integral to the package. You cannot take it apart... anymore than you can remove the lens from an HVX.

If you want an interchangeable system, just buy any of the other brains.

Jim

In other words, no. If you buy the fixed-lens camera you cannot ever remove the lens in any way in order to attach another lens. It may be possible to use an adapter, as with the Panasonic HVX series, but the 8x zoom lens will always be attached to the brain. Forever.


What is REDCODE and what does the number next to it mean?
REDCODE is the "magic sauce" that allows the cameras to record extremely large RAW files into a relatively small space. Essentially, it is a form of compression used to let the camera record so many high quality images in a relatively short amount of time and using a relatively small amount of space.

The numbers currently relate to the data transfer rate of the format, but will eventually have a different contextualization. While we are unsure of what, it is likely higher numbers will generally equate to higher picture quality.



There has been a lot of mention of interchangable lenses. Will I be able to use leses from other manufacturers with my camera?
If you are talking about the fixed lens 2/3" Scarlet, then no. You will not be able to use any other lens, as the original lens is permenantly attached to the body.

If you are talking about any other camera, then yes. The RED cameras offer a very simple solution for changing lens mounts:

Takes a minute or two to change mounts. 4 Bolts out. Change mount. 4 Bolts in.

Jim


What manufacturer's lenses will I be able to use?
There are a number of solutions produced by RED directly and by third parties that let you use other mounts.

B4
BNC-R
C-Mount
Canon EF
Canon FD
Contax/Yashica
Leica M
Leica R
mini-RED
Nikon
OCT-19
Panavision
PL
RED-Mount

So I can use any zoom from those companies on my Scarlet?
Yes, with one exception. If the zoom you are planning on using is made for a multiple (i.e. 3) CCD sensor array it will have a prism in it that breaks the light up into their component red, blue, and green colors. This is not compatible with a CMOS sensor like the Scarlet uses, which records all the colors one one sensor, and would require a special adapter.

Does the 2/3" fixed lens "complete kit" use standard RED accessories?
We really don't know. It is possible that some of the accessories that will make up the "complete kit" will be standard accessories, while others are "built in" to the larger brain. It is possible that, aside from the lens, all of the accessories will be offered off the shelf. And it's possible that nothing about the camera is available for use on other cameras (though, in keeping with the modular concept, this last idea seems unlikely).


I like/need Autofocus (AF). What RED lenses will have AF?
We currently only know that the fixed zoom lens on the 2/3" Scarlet and the FF35 lenses will feature AF.

What focal lengths will the 2/3" fixed zoom provide?
It is known only as an "8x" lens - the actual focal lengths are unknown.
 
Damn, there is still so much unknown.
Now when I decided that 2/3 is not worth buying, I struggle between S35 and FF35. I am wondering, why should there be two very identical cameras. Is FF35 worth 2,500 more?

When they are out, I am pretty sure there will be one "favorite" camera. Like XHA1 over H1. Maybe 2/3 will be so incredible, that it will leave the other ones in the "dust". Can't wait!
 
Hard to say at this point. I'm going to say that it is probably a third-generation sensor because it's not as far along in development and Jim has said that some things like read/reset times would improve again for Monstro. It's behind Mysterium-X in development so could include more refinements in the progression of their sensor program. Mysterium-X will come in two flavors, one with photosites about .005mm in size, the other with photosites of about .003mm, the latter for the 2/3" chips. And they're both considered the same generation at this point I think.
 
Time for an update. My original post is evidently over the character limit when I tried to add more information, so I'll be attempting to have each post deal with a set of topics which will be linked to from my first post. This way folks only wanting to know about lenses don't have to read about the pricing of brains. I'll move pieces of the posts around to try and make it a little more readable.

:shocked:
WARNING:
This is speculative information about products that are still unavailable. The information below may not apply to the final product.

I don't want the Fixed-lens 2/3" Scarlet, but am on a very tight budget. What's the least I'll need to have a working camera?
Every camera needs a brain, which houses the sensor, lens mounts, and will probably include some input/output connections. In order to control the image projected onto the image, the camera needs lenses. One good zoom may work on a tight budget. The camera also needs power to see the image, in the form of batteries for the REDhandle, a separate battery module, or a connection to wall power. There has to be a way of controlling the camera, so we need a REDhandle or the REDmote. The images recorded will also need somewhere to be stored, either in a Compact Flash (CF) card module, a Hard Drive Disk/Solid State Disk (HDD/SSD) module, or perhaps legacy use of the REDdrive and REDRAM.

What is the difference between the REDhandle and the REDmote?
The REDhandle consists of two separate pieces which connect to the side and/or bottom of the brain, allowing it to be held like a large dSLR. The REDhandle will also have room for a battery, allowing for a very small form factor. The REDmote connects to the back of the brain or the rearmost module. The REDmote has a wireless connection with the camera, and may be used "anywhere" (likely within a certain radius from the camera). Aside from battery power and wireless capability, the two devices will probably offer the same or very similar functionality.

What are all these storage options? HDD/SDD, CF, REDdrive, REDRAM?
A Hard Drive Disk (HDD) is the type of disk used in most computers. It records data magnetically onto platters spinning thousands of times per minute. A single HDD of current technology is simply not fast enough to record the amount of information produced by the RED, so the HDDs are put in a Random Array of Independent Disks Type 0 (RAID 0). In a RAID 0, two or more drives are connected together and the data sent to them is split so they each only write their portion of the data. This distribution allows each drive to write less data, increasing the speed of the array.

A Solid State Disk (SSD) is an emerging type of electronic storage. It uses non-moving parts to record data. Since there is no physical motion (aside from the electricity itself), the device runs much quicker than HDDs. Also, it does not experience failures due to vibration or shock as HDDs do.

A Compact Flash (CF) card is a standardized portable storage medium. It works similarly to SSDs in that it has no moving parts, but has a very limited storage capacity and speed. The cards themselves have no read/write capability and must be connected via a reader/writer accessory.

The REDdrive is the proprietary RED solution using an HDD-based recording medium. It was developed for the RED ONE and connects via an external cable.

The REDRAM is the proprietary RED solution using an SDD-based recording medium. It was developed for the RED ONE and connects via an external cable.

Will the Scarlet have a backlog when they begin shipping?
It is impossible to say. RED has learned a lot about supply and demand from the launch of RED ONE. At the same time, however, the demand for Scarlet appears very high.

Will RED ONE owners get priority in orders?
Yes.

Chad Koeller said:
It is really too early to tell at this time what
the backlog is going to be, but Red One owners will have first priority over the new cameras.

How much will the mini-RED primes (aka RED mini-primes) cost?
RED has not stated any hard pricing information. Estimates range from $500 to $1000 a lens.

Will RED have a mini-RED zoom lens?
Though there is an 8x zoom lens on the fixed-lens Scarlet, RED has not announced plans to produce an interchangeable mini-RED zoom.

What lenses will be available as the mini-RED primes?
6.5mm T1.9
8.0mm T1.5
16mm T1.5
25mm T1.8
50mm T2.9
75mm T4

Will the mini-RED primes be geared to work with a Follow Focus?
The latest renders do not show any gearing on the mini-RED primes.

Is RED taking pre-orders/reservations for the Scarlets? If not, when will they?
RED is currently not taking reservations for the Scarlet. We don't know when they will - check back constantly.

How thin will the Depth of Field be on the 2/3" Scarlet?
Depth of Field on the 2/3" Scarlet will be greater (deeper) than that of the S35 and FF35 brains, due to the sensor size (larger sensors provide for smaller depth of field). However, using the fast mini-RED primes and similar lenses should make the DOF for the 2/3" Scarlet very usable and noticeable.
 
Depth of Field on the 2/3" Scarlet will certainly be less than that of the S35 and FF35 brains, due to the sensor size (larger sensors provide for smaller depth of field). However, using the fast mini-RED primes and similar lenses should make the DOF for the 2/3" Scarlet very usable and noticeable.

You mean DOF will be greater, i.e. deeper, than S35 and FF35. I know that's what you meant, but it came out wrong.
 
You mean DOF will be greater, i.e. deeper, than S35 and FF35. I know that's what you meant, but it came out wrong.

Quite right. That's what I meant, but it could have been expressed better as you said. Thanks for pointing that out!
 
Will there be a Cameflex mount for the Scarlet? If not, anyone know where to get a Cameflex to PL mount adapter?
 
So I can use any zoom from those companies on my Scarlet?
Yes, with one exception. If the zoom you are planning on using is made for a CCD sensor array it will have a prism in it that breaks the light up into their component red, blue, and green colors. This is not compatible with a CMOS sensor like the Scarlet uses, which records all the colors one one sensor, and would require a special adapter.

I may be the one that thought this was unclear, but it should be pointed out that there are single-sensor cameras that use CCD technology instead of CMOS (for reasons passing understanding), so just seeing 'CCD' doesn't mean you're looking at a 3-sensor system with these prism lenses. An example would be early Nikon DSLRs.
 
I may be the one that thought this was unclear, but it should be pointed out that there are single-sensor cameras that use CCD technology instead of CMOS (for reasons passing understanding), so just seeing 'CCD' doesn't mean you're looking at a 3-sensor system with these prism lenses. An example would be early Nikon DSLRs.

Hi Lee,

I actually wrote "array" in the hopes of differentiating between a single CCD and a three CCD group. Ambiguity crept in anyway - I'm glad you brought it up. I've corrected it! Thanks again.
 
Do people think that since the fixed scarlet has a "no comprimise lens" that it too will have a very workable/noticable DOF?
 
Nice I like it!!!

Although be wary of your use and context of the word 'VIDEO' when relating to RED products. The context you have used it in is fine obviously because it relates to motion...I know its all semantics but you get my meaning!!! =()
 
Thanks a lot Michael, you've cleared up many questions I had.
I will admit, I am somewhat not a novice when it comes to all this stuff, I only know how to point a camera and make a film, I don't really have much knowledge in what makes a camera work. So I have joined here in hope to gain much knowledge on the inner workings of RED Cameras and all cameras in general, I am planning on attanding Film School next year and hope to get a RED Scarlet some time next year as well so I would like to have as much knowledge about the product before I commit to the purchase.
That being said I am very excited about RED and definately see it being a huge part of my future as filmmaker.
I also hope to make many friends here and to rub shoulders with industry professionals at the same time.

So Hello everyone, I am looking forward to getting to know you all and becomming a part of this community,

Andrew Hardman
 
2/3 B4 mount lens misconceptions

2/3 B4 mount lens misconceptions

I have read this over and over that a B4 lens is radically different from a lens intended for a film camera.

A eng lens intended for a 3-chip camera if striped of all its servos and control surfaces is just a lens. A lens that is designed to focus the image on an image plane at a set distance from the rear element.
It is the 3 chip camera that has the prism not the lens.
That is why you can use a 35 mm on a eng camera. You do have to put on an adaptor that adjusts the distance of the rear element and mechanically connects the two different mounts.
There is a magnification increase 35 to 2/3. The 35 mm will be a longer lens on a 2/3 video camera.
What you have to know about the 2/3 lens is dose its image have full coverage of the chip.
 
I'd really like to know what kind of a cost discrepancy we'll be seeing between the 2/3 fixed lens system and the interchangeable 2/3 with a basic third party lens.
 
Beginner

Beginner

I noticed this section is for beginners...

I would like to do walking virtual tours of properties (I am a realtor) and was considering cameras such as HV20 until I found out about Red. My question is whether Red would be an appropriate camera for such application and if it is easy to use? I am computer literate, but only now learning how to take better photos etc. Is Scarlet too advanced a system for a beginner, or is it too simple and to good to not buy for the price?

Thanks in advance for any help!

Where can a newbie find simple tutorials of how to work with RED media and the best simple to use software ?
 
Back
Top