GemiZ

[Zeb B]

This will be where I post footage from my amazing Gemini for all to see the incredible range of use in this brilliant product ;-)

My tests will mostly be HFR since that is why I purchased the Gemini. There's lots to look at out there for cameras which produce nice images at 24fps - the field narrows significantly after 60fps. My interests is to find the sweet spot for image quality at 60+fps. That's what the kids are shooting these days ;-)

If you would like to see a specific test run - hit me up

 

[Zeb B]

Reserved

 

[Zeb B]

First up:
Kitty in the window. Pretty much worst case in some sense, using the LL OLPF in sunshine, at 96FPS 8:1 compression, hand held, heavy backlight. Lens was a Nikon 70-200mm around F5.6 or so. Funny how blown out your monitored image looks in order to fill up the R3D with photons

Out of Cam JPG

Worked Tiff

Dropbox Tiff
https://www.dropbox.com/s/2yjh1nf0ugofmjk/A004_C001_0912D5.134.0000134F.tif?dl=0

Dropbox R3D
https://www.dropbox.com/s/l35trynlwokyatt/A004_C001_0912D5.0000134F.R3D?dl=0

 

[Brandon Veen]

I always find cats make great first test subjects for new equipment.
The results remind me of shooting in HDR on Dragon, but far more effective with keeping the foreground/background balanced.

I'd love to see some underwater tests when you get the chance.

 

[Zeb B]

So still first day with the Gemi and seeing how the LL OLPF rolls with HFR since I find RED cams always hungry for light but am not sure if it's worth swapping out OLPF's mid-day for incremental quality improvement. Images seem just a bit noisy but easy to grade. This taken in overcast conditions. The bright ripple water in front of the bird is minnows scattering - which looks cool in 96fps. Nikon 70-200mm lens.

Worked Tiff:

Dropbox Tiff
https://www.dropbox.com/s/15asnp6r6pvtxfa/A004_C003_09124A.110.0000110F.tif?dl=0

Dropbox R3D
https://www.dropbox.com/s/egf6bzlh8iqaz4n/A004_C003_09124A.0000000F.R3D?dl=0

 

[Zeb B]

I always find cats make great first test subjects for new equipment.
The results remind me of shooting in HDR on Dragon, but far more effective with keeping the foreground/background balanced.

I'd love to see some underwater tests when you get the chance.

Might have a chance for that but not until after the first of the year :-(

The Gemi LL performance, to me, is a breakthrough for RED underwater where you need all the boost you can get since you're dealing with filtered light and never enough of it. The 3200iso will be used . . . a lot

 

[rand thompson]

Zeb,

Out of Redcine-X, iso 800



BTW,



your 2nd .r3d doesn't seem to work, it says "offline" in Redcine-X

 

[Zeb B]

Rand,
try the Bird R3D again

 

[rand thompson]

Zeb,


It works fine now thank you!

regrade to bring out the underwater cane of the foliage more.

The Bird is saying,

"Whaat the..F**K, wasn't this green just the other day!!" HaHa

 

[Zeb B]

@rand
Interesting

 

[Aaron Lochert]

Mrow.

4K: https://farm2.staticflickr.com/1877/29716141087_4a747227d1_o.png

 

[rand thompson]

Zeb,


I tried to capture a greater tonal range, by separating the different intensities of green, a better separation of the browns, beiges and yellows. Next, I tried to capture the different reflections of sunlight on the different leaves.

 

[Zeb B]

Ha! Nice one guys!

Hey, had a chance between Hurricane Olivia squalls today to squeeze off my first real test footie. Lens is a Nikon 70-200mm at 2.8, RED 96fps at RC 8:1, LL OLPF, watch in 4K

Here's a couple R3D's to check out. Tell me what I'm doing wrong in camera. The whole IPP2 is new to me and I just starting using PP today since DaVinci licensing is lame: fob and authorization code both of which are not with me and I'm with new computer. BMD says tough shit if you don't have your Authorization Code with you - no work around without the Serial Number - which B&H doesn't track or put on the invoice - got their Jewish holiday schedule on the invoice . . . so that's real handy. Adobe and Apple have the licensing deal figured out. My work is drifting toward After Effects anyway to maybe it's a sign

https://www.dropbox.com/s/xyuy8hg04ozhc6d/A004_C024_0913WT.0000150F.R3D?dl=0

https://www.dropbox.com/s/7j3ratmeuunkuj6/A004_C023_09137Y.0000252F.R3D?dl=0

 

[Aaron Lochert]

First off, your metadata is saying Standard OLPF, not Low Light OLPF. But you do have Low Light mode enabled, maybe that's what you meant? May I ask why you're shooting LL mode outdoors in bright conditions?

Also, what's confusing you about IPP2? Perhaps I can help.

 

[rand thompson]

Zeb,


In Redcine-X both 800 ISO, with custom curves for each.


High Contrast/ Medium

MediumContrast/Soft

 

[Zeb B]

First off, your metadata is saying Standard OLPF, not Low Light OLPF. But you do have Low Light mode enabled, maybe that's what you meant? May I ask why you're shooting LL mode outdoors in bright conditions?

Also, what's confusing you about IPP2? Perhaps I can help.

Well I'll be, RED sends a little shrink wrapped container that is labeled Standard OLPF so I assumed that it was the 2nd OLPF and that the LL was installed. Nop. The container is empty so looks like I am shooting with the Standard. What also fooled me is that the LL mode being enabled with the little LL icon - seems like that would be grayed out unless you have the LL OLPF installed. Guess not

Why shoot in LL outdoors? It was overcast so in order to ETTR (just inside Stop Lights) it takes wide open lens, 220° or so on the shutter and about 3200iso . . . if you are shooting 96fps. Again, I've had the Gemini for 48hrs now so am just figuring it out so if I'm wrong about this approach or settings you all can see then shout out. I have zero pride as it relates to being a RED tech. I've been shooting with other cams than RED for a couple years since I never really loved and bonded with the Dragon. The Epic-MX was my little buddy and we had so many good times together. Sad ;-)

On OLPF's:
1. So what is the cut off for switching from Standard to LL? What constitutes Low Light exactly?
2. So what's the practical upper ISO limit of the Standard OLPF?

 

[Blair S. Paulsen]

The LLO got a reputation for artifacting, particularly red orbs around point source light in frame. The STH got a rep for eating too much light and lifting the noise floor. Once the STD came out, everyone I work with only wanted STD. Are there situations where the LLO or STH (or one of the Kippertie options) would make sense - absolutely.

FWIW, I've chosen to live on the STD OLPF to simplify both production and post/color work. Disclaimer: have not done A/B testing, that said, I feel like the newer color science/image processing does skin tones as well as the STH did early on and I get the stop back. IMO, the LLO doesn't give me enough more stop to be worth the risk vs the STD, YMMV.

Cheers - #19

 

[Zeb B]

Guess I'm now a bit confused about the OLPF dealio. Is it compatible with Gemini? RED store has mixed messages on this:

"NOTE: The DSMC2 S35 Low Light Optimized OLPF is compatible with WEAPON® 8K S35, WEAPON 6K, RED EPIC-W® 8K, and SCARLET-W® 5K cameras."

But the tags on the same product page and Gemi Owner's Manual state that the LL OLPF is compatible.

1. When should the LL OLPF be used?
2. I understood that the only disadvantage to using LL over the Standard is you give up about 1 stop or so of DR. Is that accurate?
3. If shooting in a dark but high DR environment like a night club - which OLPF is better? I have an upcoming project like this
4. So when using the Standard, when is the switch over to LL Mode? Is there some kind of Phil Chart that shows a S/N cross over point of some sort moving from one Mode to another?

EDIT: Sir Blair has answered some of the above ;-)

 

[Blair S. Paulsen]

No idea if they created a custom LLO OLPF matched to the larger pixel pitch of the Gemini sensor, and, if so, what it's performance characteristics are. Notes anyone?

FWIW, I'd still opt for the STD OLPF - especially in a night club where hot point source lighting is common. BTW, watch out for lasers hitting the lens.

Cheers - #19

 

[Zeb B]

BTW, watch out for lasers hitting the lens.

Cheers - #19