Frequently Asked Questions
Find quick, direct answers to our most frequently asked questions. This directory addresses common installation inquiries, hardware standards, and product performance details. Use the categorized sections below to get immediate solutions and keep your project execution moving smoothly.
FAQ
Black Field or a White Field?
This refers to the background surrounding your artwork, and the easiest way to picture it is using the Batman symbol. A Black Field works exactly like the iconic Bat-Signal in...
Black Projection / White Field?
In optical projection, light fixtures cannot project the color black. "Black" is simply the total absence of light. If your artwork features a white background with a dark logo, the...
Can I combine gobos with animation wheels or pr...
Yes, High End Systems fixtures often include animation wheels alongside gobo wheels for textured, moving effects. Layering creates complex, dynamic projections far beyond static gobos.
Can I project gobos at an angle?
Yes, but expect keystone distortion. Some projectors have correction; otherwise, pre-distort artwork or adjust fixture angle.
Can gobos be used outdoors?
Yes, with IP65-rated gobo projectors or weatherproof fixtures. Apollo gobos perform well in suitable fixtures; always check heat and environmental ratings.
Halos & Ghosting: Why does my text look like it...
This is a common issue known as chromatic aberration or optical ghosting, and it is usually a characteristic of your lighting fixture's lens barrel, not a defect in the gobo...
How Big Will My Projection Be?
Your final image size is determined by the relationship between your throw distance and your fixture's beam angle (lens optics). A narrow lens keeps the image concentrated and compact over...
How Do I Know What Fixture to Use?
Selecting the right fixture depends entirely on your environmental factors. Are you projecting indoors inside a dim ballroom, or outdoors competing with city ambient light? Distance plays a massive role—longer...
How are gobos used in architectural or permanen...
Apollo gobos excel in facade lighting, wayfinding, branding on buildings, and themed environments. Use IP-rated fixtures and durable glass or metal for long-term outdoor or indoor use.
How can Apollo help with large-scale or complex...
Apollo’s experienced team and dealer network provide end-to-end support: artwork assistance, fixture matching (conventional or High End moving lights), bulk production, and technical guidance for events, installs, or tours.
How do Apollo gobos compare to ROSCO in terms o...
Both are excellent. Apollo’s laser precision often delivers superior fine detail and consistency in metal and glass. ROSCO is strong in projector hardware and broad distribution.
How do I calculate the projected image size of ...
Image size depends on throw distance and lens focal length. Use the fixture’s photometrics chart (excellent ones are available from ROSCO) or simple formulas: larger throw or shorter focal length = bigger...
How do I focus a gobo projection?
Adjust the lens barrel or focus knob until the image is sharp. Start with the fixture close to the surface and move back while refocusing.
How do I get the sharpest gobo projection?
Use high-resolution gobos (Apollo ColourScenic® or SuperResolution® excel here), clean lenses/gobos, proper bench focus, and the right lens for your throw distance.
How do moving lights enhance gobo projection?
Moving Head Systems or moving lights add pan/tilt, rotation, and animation wheels for dynamic, programmable effects far beyond static fixtures.
How do pastel colors turn out?
Soft, subtle shades require incredibly precise handling and come with an important technical disclaimer: pastel hues are harder to replicate perfectly in projection, so the final result on the wall...
How does haze or fog affect gobo projection?
Haze makes beams and patterns visible in the air (aerial effects). It enhances gobos dramatically in concerts or events but can slightly soften surface projections. Use highquality haze for best results.
How does throw distance affect gobo projection ...
Longer throw = larger image but dimmer (use longer focal length lens for smaller/sharper distant images). Consult photometrics charts (ROSCO provides excellent ones).
Projection: What Surface / Color?
The rules of the projection surface are direct: smooth, light-colored matte surfaces (such as light gray, beige, or white drywall and drapery) provide the sharpest focus and highest color accuracy....
What Is a Throw Distance?
Throw distance is the exact physical measurement from the front lens of your lighting fixture to the wall, floor, or ceiling where the image is displayed. Knowing this distance is...
What are the cost considerations when choosing ...
Metal gobos are generally more affordable and rugged. Glass (especially ColourScenic®) costs more but offers unmatched detail and color—ideal for high-impact or permanent installs.
What is keystone distortion in gobo projection ...
Keystone occurs when projecting at an angle, causing trapezoid distortion. Pre-distort your artwork in design software, use digital keystone correction on advanced projectors, or adjust fixture angle.
What makes Apollo gobos stand out for projectio...
Decades of innovation (since 1992), over 2.5 million gobos produced, and cutting-edge laser technology deliver sharp, durable, high-detail projections.
What role does the gobo’s position in the optic...
Gobos perform best when placed at the gate (focal plane). Placing them too far forward or back can cause softness or distortion—follow your fixture manual for optimal slot.
What software is best for designing custom gobo...
Vector programs like Adobe Illustrator work best for metal gobos. Photoshop or highresolution editors suit glass. Apollo’s art team can refine or create designs from sketches or photos.
What surfaces work best for gobo projection?
Smooth, light-colored surfaces give the sharpest, brightest results. Textured or dark surfaces can soften or dim the image.
White Image on White Walls and What to Expect?
Visual contrast is the determining factor. If you project a crisp white light onto a stark white wall, the image will be fully visible, but it will not pop as...
Why Is My Gobo Out of Focus?
Blurry projections usually stem from one of three common optical issues: Lens Adjustment: Your fixture features physical focus barrels or knobs. Adjust them slowly forward or backward until the edges...
Why is my gobo projection upside down or backwa...
The optics invert the image. Insert the gobo upside-down and backwards (or flip as needed) to correct.