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Spot reflections on glasses

PostPosted: 06/13/2017, 12:41 am
by homnislash
Hi everybody,

just asking if you may know some tricks to avoid spot reflections in the studio ?

I know there's a spray, but is it more for 'black' sun-glasses type-of-thing...

Have a nice day

Re: Spot reflections on glasses

PostPosted: 06/13/2017, 1:18 pm
by Michael_Szalapski
Careful placement of lights is the best trick I know.

Re: Spot reflections on glasses

PostPosted: 06/15/2017, 3:28 am
by Farmfield
A couple of years ago I had a gig mapping some distortion and reflections onto a pair of glasses because they had such issues lighting a specific scene in a kitchen with lots of small spotlights in the ceiling, so they removed the lenses from the frames to avoid weird reflections and then I got the shot and a environment map.

Another time we did something similar using sunglasses with removed lenses on someone where we shot him close up but didn't want the cameraman reflected in the glasses. As it was a hand held walking shot and pan, we used a GoPro shooting wide angle mounted on the camera pointing backwards to capture the correct reflections which were then tracked and a stabilized version of the GoPro footage was comped onto faked lenses in the empty frames. One of those times I was very happy I wasn't the one to track, roto and comp, hehe... :D

And this approach of course needs to be planned and implemented beforehand, it's not gonna work for everything, it's not always a reasonable or even possible solution, but it's a good workaround to know of, either way. :D

Re: Spot reflections on glasses

PostPosted: 06/19/2017, 6:31 am
by [signuversum]
Michael_Szalapski wrote:Careful placement of lights is the best trick I know.



^This and if you're using greenscreen, watch out for the distorted background/problems with keying.
Try experimenting with different camera angles.

Most of the time we encourage our guests to take the glasses off, because we are lazy ;)

Re: Spot reflections on glasses

PostPosted: 07/3/2017, 9:35 am
by homnislash
Thanks for your replies,

oops, I made a mistake : I did film with HUGE reflections on glasses... I guess my lighting setup was really bad.

Any tricks to correct it a little in post-production... ? :(

All the best

Re: Spot reflections on glasses

PostPosted: 07/7/2017, 7:49 am
by Michael_Szalapski
Other than grabbing bits where the reflections aren't there and tracking them into the shot...not really.

Re: Spot reflections on glasses

PostPosted: 10/24/2017, 12:19 am
by homnislash
Just to keep you informed... Finally we'll try to film again... :(