GAM 658 - Sharp Foliage
Normally in stock, more are on the way and should arrive within 1 - 2 weeks.
The projected image will be the white area within the circle above, the black area is blocked out.
Color can be changed using gels or LEDs, but for multi-color effects a glass gobo is required.
While Rosco acquired GAM in 2013, the GAM legacy lives on in their popular range of gobos.
Gobos are like stencils for profile (ERS-style) lighting fixtures, allowing light to shine through certain areas and project a pattern. The color of the projected image can be changed by adding a sheet of lighting gel. By adding a donut (color frame with smaller hole) you can increase the contrast and clarity of the projected image. Full-size Source Four fixtures also offer an EDLT lens tube option designed for high-quality gobo projection.
The size of a projected gobo image depends on the beam angle of your fixture, a larger beam angle will increase the gobo size diameter, however the resulting image will appear dimmer (with same fixture, since the light is spread over a larger area). Gobos come in many different sizes for a range of fixtures, the table below gives a summary of the most common sizes that we list online. Not sure what size to order? Just make a note of your fixture make/model and we'll make sure the gobo gets sized correctly¹.
- ¹ Not all gobos can be made in steel sizes under 86mm (B size). This is usually due to intricate/detailed artwork, but certain fixtures also require the use of glass gobos.
|Letter Code||OD (Outer Diameter)||IA (Image Area)||Notes|
|A size||100mm||75mm||Fits most full-size ERS-style fixtures|
|B size||86mm||64.5mm||Industry-standard size, fits most full-size ERS-style fixtures|
|M size||66mm||48mm||Used in "Jr" ERS-style fixtures|
|E size*||37.5mm||28mm||Fits "Mini" ERS-style fixtures|
|(varies)||(varies)||Sized for your fixture, make a note of your fixture make/model|
- * E/ML/Custom Sizes – Please make a note of your fixture make and model to ensure correct sizing for your application.
|Suggested Items||Pattern Holder, Donut|