|
Forums >
Photography Talk >
LIGHTING: what is a grid?
Hello I can't seem to find the answer for this in my normal search habits, the 3-point lighting page on wikipedia uses the term grid as well , yet the disambiguation page has nothing about grid for lighting / photography If I could get some insight into that I would greatly appreciate it. Sep 30 08 03:53 pm Link A grid spot comes in varying degrees i.e. 10, 20 etc. It focuses the light by funneling it through the grid. It provides a wider beam than a snoot so it works great for focusing light on a particular part of the subject. They typically attach directly to the speedring or some other part of the flash head. Sep 30 08 03:55 pm Link Sep 30 08 03:55 pm Link Looks like a honeycomb, limits light into a tighter spread. They make them for reflectors, beauty dishes, and softboxes to name a few. Sep 30 08 03:58 pm Link AristonPhotog wrote: okay, what is a speedring and what is a snoot? i haven't tried googling these terms yet. Sep 30 08 03:58 pm Link Michael Bonner wrote: ermm, alot of vocabulary here. is there some sort of primer anyone suggest I read? Sep 30 08 03:59 pm Link Ravendrive Productions wrote: A speedring is the coupling device that allows you to attach modifiers to your strobe and a snoot is like a funnel that attaches to your light to create a tight beam. Sep 30 08 04:00 pm Link Typically it's a honeycomb filter that fits into the reflector on the light. Here's the Alien Bees version: http://www.alienbees.com/hg4x.html Most brands have something similar though. Used to control the spread of the light. Good when you want a relatively small lit area with sharp shadows. The light falloff is somewhat gradual. This isn't a great example, but I used a grid on this shot. The light falloff around the edges is as it was shot. Not much done to it in post (although I need to remove that damn star): https://www.modelmayhem.com/pic.php?pic … id=7621424 Sep 30 08 04:00 pm Link A grid concentrates the light, like a spot but with much softer edges. The grid fits into the reflector on your light. In a three point lighting scheme it would be useful as the hair light. Grids, which actually don't have a grid patter, they actually have a honeycomb patten come in different densities, meaning the size of the hole in the pattern, from very tight, to more open. The tighter the grid the more concentrated the spot. Of course using a grid, especially a tight one will effect the light output from that source to make sure you take measurements to get that light to the output you need. Sep 30 08 04:00 pm Link A speedring attaches a light modifier, typically a softbox, to the flash itself. A snoot is a funnel that attaches to the flash...basically turns the wide beam of the flash into a spot light, but with a very narrow beam. Sep 30 08 04:00 pm Link Don't forget you can also grid softboxes, etc. http://www.calumetphoto.com/item/LT9609/ Sep 30 08 04:01 pm Link Ravendrive Productions wrote: Try this: Sep 30 08 04:01 pm Link A grid concentrates the light, like a spot but with much softer edges. The grid fits into the reflector on your light. In a three point lighting scheme it would be useful as the hair light. Grids, which actually don't have a grid pattern, they actually have a honeycomb pattern, come in different densities, meaning the size of the hole in the pattern, from very tight, to more open. The tighter the grid the more concentrated the spot. Of course using a grid, especially a tight one will effect the light output from that source to make sure you take measurements to get that light to the output you need. Sep 30 08 04:01 pm Link Ravendrive Productions wrote: Click the freakin' link above and you won't have to read anything. Sep 30 08 04:01 pm Link Michael Bonner wrote: Ravendrive Productions wrote: Those are all different modifiers that attach to a strobe and change the quality of the light. Sep 30 08 04:02 pm Link &.... Octotbox (octagon shaped softbox)w/ grid:  (edit) a good informative sight on lighting essentials: http://www.photoflexlightingschool.com/ … mpaign=ELK Paul Sep 30 08 04:11 pm Link Excellent. I appreciate the information  I should be able to build up from here.Sep 30 08 04:12 pm Link Aside from the definition given here so far, a light grid is also a rigging system, usually 2" pipes, criss-crossing under a ceiling in a studio or theater, for hanging lights from. Not to confuse you, but just in case the wiki article didn't jive with what you were seeing here. Sep 30 08 04:13 pm Link Ravendrive Productions wrote: A speedring is the bracket that mounts a softbox or octabox to a strobe head. Most of the lighting manufacturers use a slightly different way of mounting these accessories to the strobe, so you have to buy a speedring which is compatible with your lights. Originally these mounting brackets (where the fiber rods in the softbox come together) were fixed when mounted on the strobe head, so your softbox would be either in a vertical or horizontal configuration. Sep 30 08 04:16 pm Link Barndoors that can also accomodate a honeycomb grid and colored gel inserts.  Sep 30 08 04:22 pm Link Example of (not such a great photo, but it was just a light test...) a 22" beauty dish with honycomb grid:  Sep 30 08 04:30 pm Link I would also like to thank everyone for being so generous with your knowledge It's greatly appreciated!Sep 30 08 04:45 pm Link Ravendrive Productions wrote: At the top of the forum there's a thread entitled Photography Talk: Rules, Resources and FAQ. In that thread, there are links to key MM threads. One of those is the Lighting, Flash, Ring, & Battery Strobe Reference thread, which has a large section on Lighting Basics. It contains links to books, tutorial websites, and much more. Oct 01 08 02:13 am Link Just wanted to say that this thread has some great resources for those of us that are new-ish to lighting. Thanks for the info and links! Oct 01 08 02:30 am Link They all answered it already Oct 01 08 02:33 am Link Never leave your modeling light on when using a 10 degree grid. I burnt the shit out of myself learning this. Oct 01 08 02:43 am Link Oct 01 08 03:12 am Link digital Artform wrote: I don't mean to turn the attention away from all the helpful answers here but I just can't resist. Oct 01 08 03:20 am Link Joe Mtz wrote: $130 at Acme Display in LA Oct 01 08 03:30 am Link digital Artform wrote: Or you can get a styrofoam "wig stand" head for $4 at the local beauty supply, and put it on a regular lightstand rigged with a coathanger to hold a shirt. Oct 01 08 08:50 am Link Caradoc wrote: holy! i'm so doing this instead of getting a manniquin! great idea! Mar 08 09 11:21 pm Link Ravendrive Productions wrote: http://www.amazon.com/Photography-Barba … 0321011082 Mar 08 09 11:32 pm Link 50409 wrote: It appears that the "voluptuous" female mannequins are $310! Mar 09 09 06:50 am Link I know this wasn't my thread but I want to thank the OP for asking and for everyone who commented. It was a great deal of help. Mar 09 09 07:01 am Link Michael Bonner wrote: Also the speedring is a kind of univeras adaptor. If tou have a reflector or softbox with a speedring you can get adaptor rings for Bowens, Elinchrom etc. so one kind of light modifier can fit all makes of heads. Mar 09 09 07:16 am Link |
