HVX Brevis/ Nikon lenses White seemless shoot

M

Mondragon415

Active member
Hey,

So I am doing a shoot using the HVX w/ Brevis and shooting w/ Nikon lenses. What I am doing...

Zooming out on the HVX so it creates a box frame around the talent.

The problem is--the lenses I am using wont let me get the entire person in full frame unless I use a wide lense but then I am outside of the white seemless paper.

So my question is can I use a wide lense (28MM) and garbage matte the space that is outside the white seemless paper? Matte it all white so it looks the same? I know I can do this if I zoom in so the entire frame is full on the lenses...but can I still do it if I have have the frame in side the frame?

I attached a style frame of what I am going for...so imagine that on the right and left of these guys is outside of the white seemless and its just a brick wall...can I pull that out in post?
-1.jpg
 
yeah. totally possible. i do this all the time.

if your white is blown out then just garbage matte the edges and place a white rectangle behind. if using fcp, make sure "super white" is enabled in the sequence settings or you will see the crop on some tvs.

if your BG is not blown out, either use cc to get it there or you will have to match the color of your rectangle to your BG and feather the edges of your garbage matte to blend.

BTW, this post doesn't belong in the 35mm adapter section. the fact that you used a brevis is irrelevant. this is a post thing...
 
Hi... how are you? If I understand correctly what you are trying to do, I would recommend you to use just a naked camera. It seems that you don´t need an adapter for your work. You´ll just end up loosing time in postproduction.
 
Cool..thanks a lot for the reply. I realized it when I posted this that its a post question but anyway thanks. I do have a question though about the brevis. Since the ground glass vibrates will this effect the garbage matte in post? I really dont want to have to keyframe a bunch of crap.

Thanks man.
 
missed the part about the shoot coming up. i thought it was done. yeah i agree, you should skip the adapter unless you just really like the look. however, you may experience some degree of vignetting which will screw up your garbage matte plan.

since you haven't shot yet, save yourself a lot of trouble and get more seamless paper. extend your set so you don't have to do any of the matte stuff. otherwise, if this is not possible, make sure you overlight your BG past the point of blowout so that your artificial BG blends with the real one. make sure your white balance is perfect so you don't get yellow fringe in the whites. balance off the white cyc. don't use warm cards or presets. manual WB.
 
Damn..this just brings up a lot more questions since I dont have enough time to extend my BR set and I really like the look. If I can make it work i want to but if it is really going to be a nightmare I might just take the lenses out of the mix.

Do you think its possible without extending the BR and garbage matteing in post to keep the lenses on?

So just to be sure you said white balance off of the white seemless paper in the BR?
 
Yes, sorry... By naked camera I meant just the camera. I don´t think you will get any advantage of it in this situation, and definitely it will be easier to matte anything you want with a cleaner image.
 
killamill said:
Yes, sorry... By naked camera I meant just the camera. I don´t think you will get any advantage of it in this situation, and definitely it will be easier to matte anything you want with a cleaner image.
Click to expand...

Hey Killa,

So you vote take the adapter off and shoot with just the HVX for the full body shots that I need to mask?
 
Yes, that´s the way I would go in that situation. Ask yourself this, why are you going to use a 35mm adapter for this particular shot? Do you need any of the properties it has to offer? Well, by the example you showed, I understand that you´ll have a subject and you want to mask it to leave it into a white background. So, why would you want DOP?

My 2 cents...

Best of luck
 
yes, you are much better off without the adapter. no vignetting issues. the adapter gives no real advantage on a white cyc unless you have multiple people or objects at different distances from camera.

yes, white balance from the white cyc. then light the cyc past the point of blowout. use your zebras at 100% to make sure. then when you garbage matte and place a solid white layer behind your video, it will be seamless.

one other cool trick you can do is to turn the camera sideways 90 degrees and shoot in "portrait" mode. great for full head to toe shots. gives you quite a bit of extra resolution and you can zoom in on your shots in post if needed. just rotate the clips 90 degrees in post and it's back to normal.
 
If you check out our latest Cinevate Video University clip on our DLSR shoot rig, you'll see we did it against a white cyc, and used the EX1/Brevis with a 100mm Zeiss lens for the tight shots. It works well.

The stillmotion.ca crew shoots pretty much exclusively with the Brevis and 70-200mm zoom when shooting against a white cyc to get depth to their images. What Drive's Cinevate on the front page was done this way. The shots tended to be tighter than what you're using, but two Brevis rigs were used for the interview pieces again using our white cyc.

Cheers,
Dennis.
 
You must log in or register to reply here.
Back
Top