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
Aluminum vs. Steel Gobos?
It all comes down to detail and longevity! Aluminum gobos are lightweight and work beautifully for simpler geometric designs or shorter temporary installations. However, because aluminum is thin, it can...
Any tips from The Light Network community on lo...
Pros often recommend testing orientation on the ground first and keeping spare gobos/holders on hand for quick swaps in moving light rigs.
Are Apollo gobos compatible with most fixtures?
Yes—Apollo manufactures gobos for virtually all conventional ellipsoidals, moving lights (including High End Systems), and dedicated gobo projectors.
Are gobos only for professional lighting?
Primarily yes, but affordable LED gobo projectors make them accessible for events, retail, and home use.
Are there safety standards or regulations for u...
Follow local fire and electrical codes. Use certified fixtures, secure mounting, and heatresistant gobos. Apollo’s metal and glass options meet professional safety expectations when used correctly
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 customize Apollo Wedding Standards?
If you see a typography style you like on Template A, but prefer the structural layout of Template B, yes, those styles can absolutely be combined. As long as we...
Can I layer multiple gobos?
Yes, in many fixtures (one in gobo slot + another in effects or with shutters). Most support layering for complex effects.
Can I modify my standard gobo?
Yes, but additional fees will apply. Talk with your preferred dealer to sort out any additional questions you may have!
Can I order duplicate gobos if I lose or damage...
Yes—Apollo makes it easy to reorder exact duplicates of standard or custom designs. Provide your original order details or artwork.
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 I repair a damaged gobo?
Minor cleaning is possible, but cracks, deep scratches, or coating damage usually require replacement. Apollo offers fast custom duplicates.
Can I reuse my custom gobo for a future event?
Absolutely. As long as they are stored and handled correctly, both glass and metal gobos can be archived and projected indefinitely.
Can I touch the surface of the gobo?
Do not touch the surface of the gobo. Hold a gobo by edges, like a CD/DVD. The oils on your hand may cause damage to the coating.
Can I use the same gobo in different fixtures?
Only if sizes match. Always verify holder compatibility.
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.
Can gobos enhance branding or corporate events?
Absolutely—project logos, taglines, or custom patterns for powerful visual impact. Apollo’s custom service and stock catalog make it fast and effective.
Dichroic Glass: What makes it special?
Dichroic glass utilizes microscopically thin layers of metallic oxides vacuum-bonded to borosilicate glass. Instead of absorbing unwanted wavelengths of light (which generates destructive heat), dichroic filters selectively reflect specific wavebands,...
Do I Need a Holder?
Yes, absolutely! A gobo cannot sit loose inside a light fixture; it requires a dedicated gobo holder (or retaining clip) to lock it flat and centered in the optical path....
Do I need a light to use a gobo?
A gobo is just the template—the light fixture is what brings it to life.
Do you offer custom gobo design services?
Yes, we would be glad to help you with a custom design! To get started, please contact an Apollo preferred dealer. To ensure a smooth process, you will want to...
Does my glass gobo need heat protection?
Glass gobos are not recommended for use in any fixture with more than a 750W lamp unless the fixture is equipped with appropriate heat protection equipment.
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 Get Color on My Metal Gobo?
Because a metal gobo functions like a stencil—either completely blocking light or letting it pass through the cutouts—the metal itself cannot project color. To add color to a metal gobo...
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 made?
Gobos are made by turning a design into a precision-cut or etched stencil—either cutting it out of metal or engraving it onto glass—so light can project the image.
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 bright does a gobo projector need to be?
Depends on ambient light and throw. Brighter sources (high-lumen LED or lamp) are needed outdoors or in well-lit spaces. Try matching lumens to conditions.
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 Apollo metal gobos compare to glass gobos?
Metal gobos are durable, affordable, and great for patterns/text (add a color filter for tint). Glass gobos offer superior detail and color but require more careful handling and heat management.
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 clean my gobo?
Apollo gobos arrive clean and ready for installation. If it is necessary to clean the glass gobo, dampen a soft cloth with isopropyl alcohol and gently wipe the surface. Do...
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 I handle gobo holders in moving lights?
Use the correct spring-loaded or clip holders. Ensure gobos are seated flat and secure to prevent rattling or damage during movement.
How do I install a gobo?
GOBO INFORMATION Please read before installing gobo. INSTALLATION Prior to installing, adjust the lamp to provide an even beam of light (bench focus). Determine the gobo type and follow the...
How do I install gobos in dedicate gobo project...
Follow the projector manual—many use simple slide-in holders. Ensure proper orientation and secure fit.
How do I load a gobo into a conventional ellips...
Bench-focus the fixture first for even beam. Insert the gobo into the designated slot (usually near the gate). Secure it properly.
How do I load gobos into moving lights?
Open the fixture head (power off and cooled). Place gobos into the rotating or static wheel slots per the manual. Many models allow easy interchange of glass/metal gobos.
How do I navigate to my saved Wishlist?
You can jump to your wishlist from any page on the site by clicking the Heart Icon located in the top-right corner of the main header menu.
How do I order custom gobos from Apollo?
Contact an authorized Apollo dealer. Provide fixture make/model, desired pattern (standard from our 3,300+ catalog or custom artwork), quantity, and deadline. Custom artwork should be high-resolution/vector for best results.
How do I protect intellectual property when cre...
Ensure you have rights to the artwork. Apollo produces to your specifications but does not provide legal advice—consult your legal team for trademarks or copyrights.
How do I save my favorite designs so I don’t lo...
Simply tap the Heart Icon on any pattern to add it to your personal session wishlist. Your favorites are automatically saved to your browser cache, allowing you to bounce between...
How do I search the FAQ section for help?
Using search to find the answers to all your questions.
How do I store my gobos?
Store gobos in a clean, dry, and protected case—just like you would any precision optical component.
How do color temperature and CRI affect colored...
Higher CRI sources render colors more accurately. Warm or cool LED/lamp temperatures shift perceived hues—test with your specific fixture for best color fidelity with Apollo’s full-color glass gobos.
How do gobos work in lighting fixtures?
Light passes through the gobo (positioned before the optics/lens), which blocks or filters portions of the beam. The lens then focuses and projects the resulting image or pattern.
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 Apollo’s technology differ from ROSCO?
Both are leaders, but Apollo emphasizes precision laser cutting and a massive in-house catalog of over 3,300 patterns
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 humidity or condensation affect gobos ...
Moisture can cause spotting or damage coatings. Use IP-rated fixtures for humid/outdoor environments and allow fixtures to acclimate before powering on.
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).
How often should I inspect gobos in a permanent...
Inspect every 3–6 months (or after heavy use) for dust, damage, or heat stress. Clean lenses and gobos regularly to maintain peak performance.
How should I orient metal gobos?
No strict “side,” but for text/logos, insert upside-down and backwards (optics invert the image). Test projection and adjust.
How should I transport and store gobos to preve...
Store flat in protective cases or original packaging. Avoid stacking heavy items on them. Transport in padded cases—glass gobos are more fragile than metal.
How the color is created?
There are two different ways to create color and both produce slightly different colors. CMYK is a subtractive process. It is how colors of paint and ink are created. It...
How your monitor/printer is calibrated?
All monitors / printers are calibrated differently and colors will appear differently between machines.
Pinholes: Why am I seeing tiny specks of white ...
Over long periods of continuous exposure to high-wattage lamp arcs, the concentrated heat can cause minor scaling or degradation on low-grade steel plates.
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....
Should I clean the gobo before loading?
Yes—gently clean with isopropyl alcohol on a soft, lint-free cloth. Avoid touching the surface; hold by edges.
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 emerging trends in gobo projection tec...
LED efficiency, smarter DMX/RDM control, higher-resolution glass printing, and integration with video mapping or projection mapping are growing. Apollo continues innovating with laser tech to stay ahead.
What are gobos used for?
Gobos create dramatic effects in theater, concerts, weddings, corporate events, architectural lighting, branding, and retail displays. They add texture, project logos, or create immersive environments.
What are standard gobo sizes?
Common sizes include: • A-size (100mm OD) – many conventional ellipsoidals • B-size (86mm OD) – industry standard for many ellipsoidals • M-size (66mm OD) – junior ellipsoidals • E-size (smaller) – mini fixtures Moving...
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 artwork guidelines should I follow for cus...
Submit clean black & white line art or full-color files at 100% size. ROSCO’s standards (vector preferred, high contrast) are excellent references—Apollo follows similar best practices for sharp reproduction.
What causes color fading or discoloration in gl...
Prolonged extreme heat or UV exposure can degrade coatings. Apollo’s ColourScenic® and SuperResolution® gobos are highly durable; proper orientation and fixture cooling minimize fading.
What do I need to know about my artwork when re...
While your artwork plays a major role in the type of gobo you need, your lighting fixture is the first factor to consider. You will need to verify whether your...
What if my fixture uses a non-standard size?
Apollo excels at many sizes—contact an authorized dealer with your fixture details.
What information do I need to order a gobo?
Before you place an order with your preferred Apollo dealer, answer these questions: What date do you need your gobo? Add a few days to allow for unforeseen delays such as...
What is a Diffusion Gobo?
Instead of projecting a sharp logo or a defined graphic, a diffusion gobo is engineered to alter, soften, or texture the light beam itself. Lighting designers use them to eliminate...
What is a Gobo?
A gobo (short for “GOes Before Optics”) is a stencil, template, or slide placed in a lighting fixture to shape and project patterns, images, logos, textures, or text onto surfaces or through...
What is a Micro Gobo?
They might be tiny, but they pack a massive punch! A micro gobo is an ultra-small gobo designed specifically for compact moving head lights or specialized architectural mini-projectors. Even though...
What is bridging?
Metal gobos require "bridging" or also called "tabbing" which are very small lines that connect the internal structure of letters and designs. If bridging is not added, enclosed areas, such...
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 is the difference between a white field an...
Gobos with a white field will project a white circle behind the design. A black field gobo will project the image as if the logo or text is “floating” on...
What is the difference between static and rotat...
Static gobos project a fixed image. Rotating gobos (common in moving lights) spin for dynamic effects like spinning patterns or animation.
What is the history of gobos in lighting?
Gobos have been used since the early days of theatrical lighting. Modern versions use advanced laser cutting and glass printing for superior detail and durability.
What is “bench focusing” before loading a gobo?
Adjust the lamp/reflector for the most even beam without hot spots—this prevents uneven heating and improves projection quality
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 precautions for high-wattage fixtures (>75...
Apollo recommends heat protection or suitable fixtures for glass gobos in very highpower lights to prevent cracking.
What resources does The Light Network offer for...
It’s a vibrant forum where pros discuss real setups, troubleshooting moving light gobos (including High End), fixture hacks, and creative applications—highly recommended for hands-on insights.
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 side of glass gobo goes towards lamp?
The coated side goes towards the lamp. The easiest way to tell which side is coated is to take a pencil and lightly touch the glass gobo. On the coated...
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.
What types of gobos does Apollo MFG offer?
Apollo specializes in metal gobos (laser-cut stainless steel or aluminum), SuperResolution® glass gobos (black & white/grayscale with intricate detail), and ColourScenic® glass gobos (full color with gradients and high resolution). We also...
What warranty or support does Apollo provide fo...
Apollo stands behind its products through authorized dealers. Contact your dealer for specific warranty details, replacements, or technical support.
Where can I find the dictionary definitions for...
Click on Glossary in the main top navigation menu to access our full alphabetical directory of optical design, pattern texturing, and entertainment lighting terms.
Where can lighting professionals discuss real-w...
The Light Network forum is a popular community where designers and techs share tips on gobos in moving lights, troubleshooting, and fixture compatibility.
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 are the colors in my gobo slightly differen...
When the gobo is printed on glass vs. paper The medium the design is printed on has an effect on color. There are many types of paper but all paper...
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.
Will My Artwork Fit on a Metal Gobo?
It depends entirely on the design's structural elements. Because metal gobos are physically cut out of steel, any freestanding interior shapes (like the center of an "O", "D", or "A")...