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  • 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 :)

Lenses for scarlet cinema

Not unless you only shoot super-telephoto. 2/3" video and 16mm film lenses (and the promised RED mini-primes) will give you more useable focal lengths.
 
Yes! remember the Scarlet 2/3" have a 3.8x crop factor from a Full Frame dslr. So my Tokina 11-16mm on my 7D is super wide, but will crop to a 42mm-61mm on the Scarlet cinema.

So yeah your nikon lenses will work and even AF with the electronic nikon mount, and will be great for super-telephoto shots. Wide, not so much, so the RED mini-primes are a great match
 
Thats what i figured just trying to buy a stills camera and share lenses with scarlet when it come out . I will need super telephoto sometimes , i guess i could always remove nikon mount and use mini primes for wider shots . Not sure how easy this would be or if the shots would match well.
 
Graham Foulkes said:
Thats what i figured just trying to buy a stills camera and share lenses with scarlet when it come out . I will need super telephoto sometimes , i guess i could always remove nikon mount and use mini primes for wider shots . Not sure how easy this would be or if the shots would match well.
Click to expand...

depending on when you need a camera you might wanna wait. current estimations from Jim say that Scarlet interchangeable will be out soon after NAB 2011, which is from APril 9th-14th. I'd save the money and wait...but then that might noe be the situation you are in now
 
Anthony Cote said:
Yes! remember the Scarlet 2/3" have a 3.8x crop factor from a Full Frame dslr. So my Tokina 11-16mm on my 7D is super wide, but will crop to a 42mm-61mm on the Scarlet cinema.
Click to expand...

That actually wouldn't be too bad for general shooting...

Does anybody know if this would cause any distortions over using a made-for-16mm lens? Or would it be potentially better? Since you'd be using the center of Tokina and the center is usually the sharpest...
 
Graham Foulkes said:
True enough maybe waiting is the best thing to do ,,,, I will check on angenieux lenses. Can you convert them for use on DSLR ?
Click to expand...

A lot of people are shooting vintage 16mm glass on m4/3 cameras like the Lumix GH series. There are inexpensive c-mount adapters available for those. Any mirror reflex DSLR is not going to be compatible though. The back focus distance is too deep.
 
lp/mm

lp/mm

Scarlet 2/3" sensor (from RED.COM) 10.1mmx5.35mm, 11.43 diagonal

You can divide to find the lp/mm needed, like,

"3K" = 2880 so 16:9 = 1/1.777 =

2880x1620

1620/5.35 = 302 lines per mm, or 151 lp/mm minimum at 30% MTF.

Color movie film was only at most about 50 lp/mm at 50% MTF for all colors and exposure levels so many of the older movie lenses would have needed to meet the needed MTF for a 3K camera. The specs published for film do not reflect real world subjects.

SLR lenses like Nikkon would not get near 151 lp/mm at 30% MTF at most if any f/ stops.

In fact, even with very good lenses, you can only use the center f/ stops to get close to the needed resolution on a 2/3" sensor.

Because the anti-OLPF sharpen masks some of the lens resolution issues, you don't see the difference in the end results as much as you would in a lens projector fitted with a glass plate to simulate the optical impact of the OLPF being between a lens corrected to only focus through air and being used in a Digital Camera with an OLPF+IR filter in the ray paths.

Super8 film (from web), 5.30mmx4.0132mm, 6.647 diagonal

You see the image height is less than double a Super8 image size, so its all the more important to use good lenses to get the full 3K resolution limits.

5.35/4.0132 = 133% of Super8 image height.

Whatever lens you get, you will need filter adapter rings or a matte box to use ND filters since you will only be able to shoot from maybe f/2.8 to f/6.3 with about f/4.5 being the peak resolution, outside that range your MTF at near 3K will fall off quite a bit... unless you crank the sharpen which can increase noise and Bayer artifacts...
 
Can somebody link some links where we can buy 16mm film lenses or 2/3 lenses?
Thank you.
 
Has there been any news on the Mini Primes? - personally I'm planning to get the Scarlet interchangable with 3 or 4 Mini Primes
 
Dan Hudgins said:
Scarlet 2/3" sensor (from RED.COM) 10.1mmx5.35mm, 11.43 diagonal

You can divide to find the lp/mm needed, like,

3K = 3072 so 16:9 = 1/1.777 =

3072x1728

1728/5.35 = 323 lines per mm, or 161 lp/mm minimum at 30% MTF.

Color movie film was only at most about 50 lp/mm at 50% MTF for all colors and exposure levels so many of the older movie lenses would have needed to meet the needed MTF for a 3K camera. The specs published for film do not reflect real world subjects.

SLR lenses like Nikkon would not get near 161 lp/mm at 30% MTF at most if any f/ stops.

In fact, even with very good lenses, you can only use the center f/ stops to get close to the needed resolution on a 2/3" sensor.

Because the anti-OLPF sharpen masks some of the lens resolution issues, you don't see the difference in the end results as much as you would in a lens projector fitted with a glass plate to simulate the optical impact of the OLPF being between a lens corrected to only focus through air and being used in a Digital Camera with an OLPF+IR filter in the ray paths.

Super8 film (from web), 5.30mmx4.0132mm, 6.647 diagonal

You see the image height is less than double a Super8 image size, so its all the more important to use good lenses to get the full 3K resolution limits.

5.35/4.0132 = 133% of Super8 image height.

Whatever lens you get, you will need filter adapter rings or a matte box to use ND filters since you will only be able to shoot from maybe f/2.8 to f/6.3 with about f/4.5 being the peak resolution, outside that range your MTF at near 3K will fall off quite a bit... unless you crank the sharpen which can increase noise and Bayer artifacts...
Click to expand...

Dan, as far as we know the native format for Scarlet's sensor is 1.89:1 at 3k, 3072x1620 max active image, 3.3u pixel spacing. It has not changed format since the original announcement in fall '08. 16:9 format is 2880 x 1620.

attachment.php
 
Super 16mm Illuminas

Super 16mm Illuminas

Luma Tech, Inc. sells Super 16mm Illuminas (formerly known as Optar Illuminas.
http://www.lumatechinc.com

The Super 16mm Illuminas are highly regarded. They were sold for many years
by Abel Cine Tech. Production was resumed a few years ago and the lenses
are back in stock but only avbailable through Luma Tech of Weston, Florida.
These lenses are perfect for Scarlet and all 2K applications.
 
Thanks for all the info / links has anyone used the super 16 switar kern paillio vario 16-100 lens f1.9 c-mount ? wondering if there will be a crop factor on scarlet also not sure what all the stuff hanging off the back side of the lens is. Also is there a preferred mount for the scarlet ? I have used pl mount on red and they seem really good.
 
Dan Hudgins said:
Scarlet 2/3" sensor (from RED.COM) 10.1mmx5.35mm, 11.43 diagonal

You can divide to find the lp/mm needed, like,

3K = 3072 so 16:9 = 1/1.777 =

3072x1728

1728/5.35 = 323 lines per mm, or 161 lp/mm minimum at 30% MTF.
Click to expand...

The maximum recordable area is actually 3072x1620. So 16:9 on Scarlet 2/3" is actually 2880x1620.
 
Graham Foulkes said:
Thanks for all the info / links has anyone used the super 16 switar kern paillio vario 16-100 lens f1.9 c-mount ? wondering if there will be a crop factor on scarlet also not sure what all the stuff hanging off the back side of the lens is. Also is there a preferred mount for the scarlet ? I have used pl mount on red and they seem really good.
Click to expand...

I have a range of lenses in C-mount and Arri standard/b-mounts but plan to convert all to PL with adapters for convenience. For me at least PL makes the most sense as a single mount standard for field use. Many S-16 lenses are already PL mount.

The Vario-Switar is a great lens, but not very wide for Scarlet. The RX versions will show slight CA due to being designed for the Bolex reflex prism cameras, but the non RX versions should be quite good.
 
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