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View Full Version : What are Gels and Why would I want them?


FDPiech
3rd October 2006, 12:43 PM
I made up this sheet this weekend for my cheet book showing all of my gels on the same background for me to use as a reference. Just passing it along.

Gels are gelatin filter sheets used over light sources to either correct the light balance or create dramatic lighting effects. They are also used to change colors of backgrounds and there are diffusion gels to help with diffusing light. Gels can be taped to a reflector or placed in frames and mounted to the reflector or light source.

Here is an example of a reasonably neutral background without gels and then with each of the gels included in the Alien Bee filter pack.

As you can see, if you are limited on backgrounds and are interested in matching outfits to your backgrounds, gels can be a great way to accomplish this.

The only trick in working with gels is to keep your main and fill lights from spilling on the backgrounds and contaminating the effects of the gel on your background light. You will never get true, vivid colors if your main and fill are washing out the effect of the gel.

Obviously, you can mix two gels together if you have two background lights or stack them to achieve the combined results of the two colors.

Hopefully, this will prove helpful to some of you.

All taken within minutes of each other. Subject lighting 1/125@f11 - Brolly Left - Silver Umbrella Right - Background Light at Camera Left

JBMUK
7th October 2006, 10:16 AM
great stuff and good tips..

is this a girlsworld doll - I think my sister used to have one.. lol

BarryM
7th October 2006, 10:43 AM
Great stuff, and excellent examples, i have some gels at home and shall now be digging them out to see what effects i can create,

Janice
9th October 2006, 06:20 PM
How do you stop the background light going onto the subject with that colour if it is just to the left of the camera (ie, slightly to the side of the subject) ?

Janice

FDPiech
13th October 2006, 01:28 PM
It's just JUST to the left... it's positioned to the left side at the right spot to hit the background only.

StagePhotography.co.uk
13th October 2006, 01:48 PM
Fantastic...

What camera / lens and focal length?

FDPiech
10th January 2007, 07:51 PM
This particular series was with a Canon 5D and a 24-70 f2.8 L.

Newvalehouse
10th January 2007, 09:32 PM
great stuff and good tips..

is this a girlsworld doll - I think my sister used to have one.. lol

I can't see any arm in that.
jim

FDPiech
10th January 2007, 09:33 PM
No... it just a general retail display head. I got it from a retail store supply house. Cost me all of $28 USD.