Can someone please give insight on what a honeycomb grid is used for?

Sniper rifle versus machine gun.

Helps "aim" the light.

I have 5 degree, 10 degree, 20 degree, 30 degree, and 40 degree grids.

I can set up a light and put a grid on it, and at a given distance, can shoot light on the back of  her head, her head and shoulders, her upper torso, or as a riim light with no spill on the floor or ceiling.

Those that go on big softboxes, help keep it diretional as well.

Mark

They're useful for all kinds of stuff.  This 18+ shot https://www.modelmayhem.com/pic.php?pid=709736 was taken with a single grid (to the side and a bit  behind her).   Probably a 30 or 40 degree one. The background paper is white which should give you some idea of the spill control involved.  They give you crisper shadow lines than, say, a softbox - people tend to say these shots are "strong" rather than "feminine" (aka soft).  At the same time the light's not nearly as harsh as you would think - all those little lights act in a surprisingly flattering way.

You could pretty much duct tape one on a Home Depot work light, use no background at all, and pretty much any camera and make some cool images.

Used one on the image "Thoughts" in my port. Also use a grid for hair light. I like grids but don't overuse them.

Steve

pretty much all of my shots are using grids. they are a must if you shoot in small places, to help control the light from spilling all over the place. also good if you just wanna add light to the face or add a rim light

I've never used grids... but I use barndoors to keep light from spilling all over somtimes... similar use at all?

I think grids work better on larger sources (say, a softbox), and barndoors work better on a "naked" monolight.

I've never seen barndoors on a large softbox lol.

Specificity.

I use grids all the time to control light. I have been shooting a lot of rock concerts recently and use grids on my lights to make them fit in with the existing can lights. For instance:



The light coming in from the balcony is a AB800 with a 10 degree grid. There were also two other ABs, one with a grid and red gel on the right, and another AB with a blue gel behind me coming in from the left.