In Brazil, PAL is used in conjunction with the 525 line, 59.94 field/s system M, using (very nearly) the NTSC colour subcarrier frequency. Exact colour subcarrier frequency of PAL-M is 3.575611 MHz. Almost all other countries using system M use NTSC.n Brazil, PAL is used in conjunction with the 525 line, 59.94 field/s system M, using (very nearly) the NTSC colour subcarrier frequency. Exact colour subcarrier frequency of PAL-M is 3.575611 MHz. Almost all other countries using system M use NTSC.
Pure Tungsten (EWP) is typically used in welding aluminum. This provides the stable arc with AC welding and can be used with either Argon, Helium, or mix shielding gas. Pure Tungsten electrodes are marked by a green tip. Pure tungsten has the highest consumable rate of all the types, but they are cheaper too.
Gelling for tungsten yields similar, but different problems. Fortunately, tungsten is easier -- and more forgiving. First of all, when we gel for tungsten, we use an CTO gel, which is orange and converts our daylight-balanced flash to tungsten (or incandescent). This means that our little flash has basically been turned into a normal light bulb, as far as light color is concerned. As you can imagine, this is gonna be pretty orange.