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Matte boxes and french flags


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Mattebox: Good for quick, easy filter swapping. Instead of screwing in and out round filters, you simply slide a square filter into place.

 

French flag: Good for eliminating lens flares from out-of-frame light sources. E.g., you're outside and the sun is overhead, at a bit of an angle so as to create a nasty flare, position the flag so that it casts a shadow over the lens.

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Used French flag shooting at the atlantic coast(very high contrast daytime).

Served its purpose very well, I used them on my PD170 with screw on filters

when I could not use lens hood(polarizer).

 

Greg Gross, Professional Photographer

Student cinematographer

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I find the matte box and french flag to be very useful and use them almost all the time. For some filters I use, like the Black Pro Mist, the french flag and side wings are a must to prevent the filter from flaring. I like the french flag, also known as an eyebrow, since it helps keep the flare from overhead illumination down. It also acts as a kind of fold down lens cap, between takes, when moving the camera, etc. When shooting in foul weather, the eyebrow can help keep water and snow off the lens.

 

Having a matte box with rotating stages is also nice for polarizers and graduated filters. As with anything, it's best to do some research, check out books and Google matte boxes. Note that there are several ways to spell it.

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The polarizer and french flag do different things. The polarizer is effecting the light that actually enters the lens, while the french flag is preventing light from striking the filter or lens and causing haze or flare on the image. What is lacking from most matteboxes designed for DV cameras is a sidewing system. Often times it's useful to be able to control stray light entering from the side of the frame as well as the top. I've got a clip on flag on an arm to help here but sidewings would be nice. If you're buying new, I think Chrosziel's got a new one designed for the DVX that has them.

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Sidewings are nice but every camera assistant I have ever worked with has a piece of Cinefoil with them and that works just fine. If it's a locked down shot, a small flag will do it.

Even after years in the business it still amazes me how expensive matte boxes are.

Why don't the Chinese start knocking out some matteboxes?

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I've looked at CAVISION matteboxes and they do look very plastic and junky.

According to sound people that I know and work with, the Chinese are knocking off very good copies of Neumann microphones for less than 1/3 of the price. This is high precision machining.

I'd like to know why someone isn't making high quality matteboxes that are more reasonably priced than Chrosziel stuff.

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I just shot a short film outdoors using a DVX100a outfitted with the Chrosziel Matte Box system. I didn't use side wings, and had the .7x wide angle adapter on most of the time. I've been logging the 6+ hours of footage and have yet to see a lens flare. I'm glad I didn't spend the extra $600 for them.

 

Be careful of cheaper matte box systems if you plan on using the wide angle or anamorphic adapters -- they may vignette the frame. The Chrosziel system does not vignette.

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Hi,

 

I took the french flag off my mattebox; it always seemed like a DV kiddie's accessory and I've only ever had to slip it back on (three screws, half a turn each) once.

 

Phil

 

Sorry guys but a French flag has nothing to do with a matte box the Eyebrow or Menardis is whats attached to a Mattebox. The French flag is held by an independant arm and is very maneuverable around the front and sides of the box eyebrow, manardis or plane lens.

 

GWPB

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Sorry guys but a French flag has nothing to do with a matte box the Eyebrow or Menardis is whats attached to a Mattebox. The French flag is held by an independant arm and is very maneuverable around the front and sides of the box eyebrow, manardis or plane lens.

 

GWPB

 

The standard reference for a French Flag is a small card on an orticulating arm that attaches to the camera and can be positioned to stop stray light from hitting the lens. The flap which attaches to the top of the mattebox is generally referred to as an eyebrow. However, it is also called by many a French Flag, expanding the definition of the term. Chrosziel, for one, calls their eyebrow a French Flag and it is listed that way in their catalog and labelled as such on the item itself (says it right on mine).

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The standard reference for a French Flag is a small card on an orticulating arm that attaches to the camera and can be positioned to stop stray light from hitting the lens.  The flap which attaches to the top of the mattebox is generally referred to as an eyebrow.  However, it is also called by many a French Flag, expanding the definition of the term.  Chrosziel, for one, calls their eyebrow a French Flag and it is listed that way in their catalog and labelled as such on the item itself (says it right on mine).

 

OK just because the word AINT is in some dictionaries is no reason to use it! Just because Chroisel is trying to change the accepted definition (accepted in the USA) is no reason to use it. The larger picture is, our profession has set standards and definitions and meanings for certain pieces of equipment. The fact that a piece of equipment is defined (translated) from a cataloge as being something else is no reason to start using it here. The precision with which we work and the definitions we use are for clairity and over the last 100 years or so have come to be rather specific.

Thats how doctors from one side of the country can speak to the other side with clairity. The same holds true for us DP's, Assistants,, Loaders, Rental Houses we comunicate with etc. So after having been doing this for over28 years I cant think of one American rental house or asst. I have worked with that in actuality calls a French Flag an Eyebrow or the other way around. Thats why they have two different names.

 

GWPB

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Ya'll gotta relax a bit. Language is an ever-evolving thing and even a specific jargon-enhanced industry such as our own can continually change. Contrary to you I know plenty of longtime professionals who occassionally refer to mattebox eyebrows as French Flags and the walls of Jericho have not come tumbling down.

 

There's plenty of crosstalk in this industry. There are plenty of terms that differ simply between New York and LA. What were "Gary Coleman" and "Emmanuel Lewis" stands referred to as before these two individuals became celebrities? And how many terms are there for "Obie" lights? I know of at least three.

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