Spot reflections on glasses

HD Video Cameras, microphones, greenscreens etc.

Spot reflections on glasses

Postby homnislash on 06/13/2017, 12:41 am

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
homnislash
 
Posts: 29
Joined: 01/7/2016, 6:05 am
System Specs: LG led monitor, 56 cm 22MB65 1680 x 1050 22.3" (48 cm x 30 cm) Ratio 16:10
Intuos4 OS : windows 8.1 Professionnel 64 bits, processeur x64 OEM
Processeur : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz 3.40GHz
RAM : installée 16 Go DDR3 à 799 MHz
Cartes graphiques :Intel(R) HD Graphics 4600
Fréquence du GPU : 600 MHz
NVIDIA GeForce GT 630 OEM
Fréquence mémoire du GPU: 324 MHz
Carte mere : Hewlett-Packard 18E7 Hewlett-Packard

Re: Spot reflections on glasses

Postby Michael_Szalapski on 06/13/2017, 1:18 pm

Careful placement of lights is the best trick I know.
______________
Michael Szalapski
Fast. Cheap. Good.
Pick two.
Michael_Szalapski
 
Posts: 8245
Joined: 02/2/2010, 1:06 pm
Location: Nashville, TN, USA
Twitter: thegreatszalam

Re: Spot reflections on glasses

Postby Farmfield on 06/15/2017, 3:28 am

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
*** Demos, RnD & tests: www.vimeo.com/farmfield ***
Farmfield
 
Posts: 2280
Joined: 06/8/2014, 1:44 pm
Location: Sweden

Re: Spot reflections on glasses

Postby [signuversum] on 06/19/2017, 6:31 am

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 ;)
--
[signuversum]
 
Posts: 37
Joined: 06/17/2015, 1:23 am
Location: Warsaw, Poland
System Specs: i7 | GTX 1080 | 32Mb RAM | WIN10

Re: Spot reflections on glasses

Postby homnislash on 07/3/2017, 9:35 am

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
homnislash
 
Posts: 29
Joined: 01/7/2016, 6:05 am
System Specs: LG led monitor, 56 cm 22MB65 1680 x 1050 22.3" (48 cm x 30 cm) Ratio 16:10
Intuos4 OS : windows 8.1 Professionnel 64 bits, processeur x64 OEM
Processeur : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz 3.40GHz
RAM : installée 16 Go DDR3 à 799 MHz
Cartes graphiques :Intel(R) HD Graphics 4600
Fréquence du GPU : 600 MHz
NVIDIA GeForce GT 630 OEM
Fréquence mémoire du GPU: 324 MHz
Carte mere : Hewlett-Packard 18E7 Hewlett-Packard

Re: Spot reflections on glasses

Postby Michael_Szalapski on 07/7/2017, 7:49 am

Other than grabbing bits where the reflections aren't there and tracking them into the shot...not really.
______________
Michael Szalapski
Fast. Cheap. Good.
Pick two.
Michael_Szalapski
 
Posts: 8245
Joined: 02/2/2010, 1:06 pm
Location: Nashville, TN, USA
Twitter: thegreatszalam


Return to Production Gear