Tessive Time Filter - Holy Crap!

[Andrew Rieger]

Knowing Reduser, there is probably already a thread about this product but if you have not heard of it before, you should check it out. It basically adds a global shutter to the front of any cmos camera and helps to eliminate rolling shutter. I imagine this will be pretty popular with productions using a lot of shoulder mounted cameras and panning. What do you guys think? this looks like one of the most exciting products I have seen in a long time!

http://www.freshdv.com/2011/06/cineg...1-tessive.html

http://www.tessive.com/home/time-filter

http://www.tessive.com/home/demo-footage

[Richard Foster]

Thanks for posting, Andrew. I saw this in American Cinematographer Magazine last month. Interesting technology.

[Julio Quintana]

Really cool idea and it seems useful for certain applications, but $14,000 and a two-stop light loss? Plus you have additional glass in front of the lens, and an additional box hanging off the back. Not sure if that's worth it in average scenarios. It would be sweet if RED could build something like this right into the camera, but rather than a large filter in front of the lens, it would be a small filter right in front of the sensor.

Thanks for sharing, Andrew.

[Patrick Grossien]

Really cool idea and it seems useful for certain applications, but $14,000 and a two-stop light loss? Plus you have additional glass in front of the lens, and an additional box hanging off the back. Not sure if that's worth it in average scenarios. It would be sweet if RED could build something like this right into the camera, but rather than a large filter in front of the lens, it would be a small filter right in front of the sensor.

Thanks for sharing, Andrew.

:D hehehe

[Sid Idris]

Gotta ask. Is rolling shutter really still that big of an issue. I'd much rather use post solutions to address it and preserve the cash as well as the 2 stop loss. We shot our feature on build 16 and even then we didn't have any issues - noise in the blue channel was our dilemma back then.

cheers

[Bruce Allen]

I spoke to the guys at CineGear. They are really friendly and awesome - and the footage they showed really did look better. Likely if Red wanted to offer it as an in-camera option, they'd be very interested in playing ball with RED.

I chatted with them about other things they could potentially do and suggested they offer an option to work with the cam at 48fps and alternate the ND every frame, "HDRx"-style. It would probably work perfectly with RED's existing HDRx workflow too!

Interesting to see what special effects you could do as well. Anyway, fun fun fun!

Bruce Allen
www.boacinema.com

[Andrew Rieger]

I did not think about it but I wonder if this would work with HDRX? Ya, 2 stops lost is pretty big but with the Red's sensitivity, I don't think it would be much of an issue.

[Andrew Rieger]

On second thought, I don't think this would work with HDRx. In hdrx, do you have control over the shutter speed of the A and X tracks? The first primary exposure would need to have a combined time of 1/24 of a second. Is this possible?

I am also confused about the stop loss. You set the camera to 1/24 which is already letting in more light than a traditional 180 shutter and since this filter essentially acts as the shutter, why is there any stop loss? Is this 2 stops of light lost from the 1/24 shutter or around 2 stops lost from the traditional 1/48 shutter? I'm confused.

[Bruce Allen]

On second thought, I don't think this would work with HDRx. In hdrx, do you have control over the shutter speed of the A and X tracks? The first primary exposure would need to have a combined time of 1/24 of a second. Is this possible?

Workflow would be:
Run cam at 48fps, shutter wide open.
Set Tessive filter to turn ND on every 2nd frame.
Then manually tell RedCineX that it is a HDR track (right click on the track).

Interesting. Does it do anything for sharp strobe bands? Over to Graeme!

It would make them smoother - they would be more like a gradient. EG more like a film shutter.

Bruce Allen
www.boacinema.com

[ericyoung]

...It would make them smoother - they would be more like a gradient. EG more like a film shutter.

Bruce Allen
www.boacinema.com

Thought it might but had problems visualising it.

Sounds like it would be worth hiring one for specific shots. Certainly wouldn't buy one at that price though.