Infinity Projectors Lens Guide
Throw Ratio, Wattage & 3D Prism Lens Options
Join the projection revolution ∞
The lens you choose on your Infinity Projectors gobo projector has a huge impact on:
- How large the projection diameter is on your wall, floor, or building
- How far you can mount the projector from the projection surface
- How concentrated or spread out your projector’s light is (tight logo vs. large wash)
Underneath all of that is one key reality:
Wattage is everything when it comes to how bright your projection looks.
How much wattage you need depends on three things working together:
- Projection distance – how far the projector is from the surface
- Projection diameter – how big you want the projection to be
- Light Setting in the projection area – is it Dark, Average, or Bright?
On many Infinity Projectors product pages, you’ll see wattage recommendation charts. These charts are based on our standard 1:0.33 lens ratio (short: 0.33), which is the default lens on most models.
If you choose a wider lens (0.50, 0.65, 0.90, 1.0, etc.), you’re spreading the same light over a larger projection diameter. Your wattage doesn’t change—but your lumens per square foot (or meter) do, so in practice you usually need more wattage than what the 0.33-based chart suggests, especially in Average or Bright Light Settings.
Why Lenses Matter (and Why Many Customers Buy More Than One)
Think of your Infinity projector as a light engine + lens:
- The projector wattage decides how much light you have to work with.
- The lens decides how that light is used—tight and intense, or wide and spread out.
Because of that, swapping lenses is one of the easiest ways to:
- Adapt to different room sizes
- Adjust to different mounting distances
- Move between a tight, high-impact logo and a large decorative projection
Some real-world patterns:
- Small indoor room → wider lens (e.g. 1:0.50) so the projection fills more of the wall or floor from a short distance.
- Large ballroom → standard lens (1:0.33) so the projection stays bright and well-sized from further away.
- Architectural or long-throw signage → tighter lens (1:0.25 or below) to keep the logo crisp at distance.
Many Infinity Projectors clients—especially event planners, DJs, rental houses and venues—order 2–3 lenses per projector so the same fixture can handle:
- Small rooms
- Big rooms
- Outdoor facades
…without buying a second projector. You’re essentially turning one fixture into a multi-purpose projection toolkit just by changing lenses.
How Lens Ratios & Throw Distance Work
Each Infinity lens is described by a projection ratio (or lens ratio) such as:
- 1:0.25 (0.25)
- 1:0.33 (0.33)
- 1:0.50 (0.50)
- 1:0.65 (0.65)
You can think of that ratio as:
Lens ratio = Projection diameter ÷ Distance
Rearranged, the working formula is:
Projection diameter (ft) ≈ Distance from projector (ft) × Lens ratio
For a 1:0.33 (0.33) lens:
- At 10 ft (≈3 m), projection diameter ≈ 10 × 0.33 → 3.3 ft (≈1.0 m)
- At 20 ft (≈6 m), projection diameter ≈ 20 × 0.33 → 6.6 ft (≈2.0 m)
If you want a larger projection diameter at the same distance, you choose a higher lens ratio (0.50, 0.65, 0.90, 1.0, etc.). If you want a smaller, tighter projection at the same distance, you choose a lower lens ratio (0.15, 0.20, 0.25, 0.30).
Just remember:
- Higher lens ratio → bigger projection → more area to light → more wattage needed
- Lower lens ratio → smaller projection → more of your wattage concentrated into a tighter area
And an important fine-tuning trick:
You can always make the projection a smaller than the maximum a lens allows by printing your logo smaller on the gobo slide, instead of using the full gobo area.
The lens sets your maximum practical projection diameter at a given distance; the artwork size on the gobo lets you fine-tune within that range.
Quick Lens Overview (Simple)
| Lens Ratio (1:x) | Short Name | General Behavior |
|---|---|---|
| 1:0.15 | 0.15 | Ultra narrow, very long-throw, very tight projection |
| 1:0.20 | 0.20 | Narrow long-throw, distant buildings and signs |
| 1:0.25 | 0.25 | Tight, bright beam – default on many high-wattage models |
| 1:0.30 | 0.30 | Slightly tighter than 0.33, focused logos |
| 1:0.33 | 0.33 | Standard medium beam – default on most models |
| 1:0.45 | 0.45 | Medium-wide – larger projections on walls/floors |
| 1:0.50 | 0.50 | Wide – great for dance floors and larger spaces |
| 1:0.65 | 0.65 | Very wide – big wall/ceiling coverage |
| 1:0.90 | 0.90 | Super wide – scenic and ambient effects |
| 1:1.00 | 1.00 | Ultra wide – very large projections at short/medium throw |
| 1:1.30 | 1.30 | Extreme wide – pattern wash, short throw & dark environments only |
| 1:1.40 | 1.40 | Maximum spread – specialty wide-field effects |
Standard Lens Details
For each lens, we highlight:
- At a glance – what it’s good for
- A small table of Distance vs. Projection diameter
- Great when… and Maybe choose another lens if…
Projection Size/Diameter ≈ Distance × lens ratio
1:0.15 (0.15) – Ultra Narrow Long-Throw
At a glance:
Ultra-tight projection for very long distances or dramatic, concentrated beams.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~1.5 ft (≈ 0.5 m) |
| 20 ft (≈ 6.1 m) | ~3.0 ft (≈ 0.9 m) |
| 30 ft (≈ 9.1 m) | ~4.5 ft (≈ 1.4 m) |
Great when:
- You’re projecting from far away and still need a small, crisp projection
- You’re doing architectural or long-throw signage
- You want a visible “light beam” in haze/fog with a narrow shaft of light
Maybe choose another lens if:
- You’re in a smaller room and want a larger projection from a modest distance
- You’re mostly doing close-range work where a medium or wide lens makes more sense
1:0.20 (0.20) – Narrow Long-Throw
At a glance:
Narrow long-throw lens for bright, controlled projections at distance.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~2.0 ft (≈ 0.6 m) |
| 20 ft (≈ 6.1 m) | ~4.0 ft (≈ 1.2 m) |
| 30 ft (≈ 9.1 m) | ~6.0 ft (≈ 1.8 m) |
Great when:
- You’re projecting logos on buildings, bridges, or signs from medium–long distances
- You want a little more size than 0.15 but still tight and bright
Maybe choose another lens if:
- You’re mostly in small to medium indoor spaces
- You want the projection to feel larger without moving the projector closer
1:0.25 (0.25) – Tight Beam (Default on Many High-Wattage Models)
At a glance:
Tight, punchy beam that uses high wattage very efficiently.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~2.5 ft (≈ 0.8 m) |
| 20 ft (≈ 6.1 m) | ~5.0 ft (≈ 1.5 m) |
| 30 ft (≈ 9.1 m) | ~7.5 ft (≈ 2.3 m) |
Great when:
- You’re using a high-wattage Infinity projector (150 W+) and need maximum punch
- You’re projecting on large buildings or outdoor surfaces where brightness matters
- You want sharp, readable logos at medium to long throws
Why many high-wattage models default to 1:0.25 (0.25):
High-power projectors are often used on bigger structures and at longer distances. A smaller lens ratio keeps the projection tight, focusing that extra power into a sharp, bright result instead of washing out.
Maybe choose another lens if:
- You’re often working at short throw distances indoors and want a bigger projection
- You mostly do smaller venues where a medium lens like 0.33 or 0.50 is more practical
1:0.30 (0.30) – Slightly Tight, Focused Logo
At a glance:
A focused lens that’s a bit tighter (and brighter) than 0.33.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~3.0 ft (≈ 0.9 m) |
| 20 ft (≈ 6.1 m) | ~6.0 ft (≈ 1.8 m) |
| 30 ft (≈ 9.1 m) | ~9.0 ft (≈ 2.7 m) |
Great when:
- You want your logo to stand out crisply at medium distances
- You’re lighting entrances, corridors, and focused branding areas
Maybe choose another lens if:
- You want a more universal “one size fits many” lens (0.33 is more general-purpose)
- You often need either very tight long-throw (0.25 and below) or very wide looks (0.50+)
1:0.33 (0.33) – Standard Medium Beam (Default on Most Models)
At a glance:
Our most popular “all-around” lens for a wide range of installations.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~3.3 ft (≈ 1.0 m) |
| 20 ft (≈ 6.1 m) | ~6.6 ft (≈ 2.0 m) |
| 30 ft (≈ 9.1 m) | ~9.9 ft (≈ 3.0 m) |
Great when:
- You want a balanced choice for many different venues
- You typically mount the projector at medium distances in Dark or Average Light Settings
- You’re not sure where to start—this is usually the safest option
Maybe choose another lens if:
- You consistently need much larger projections at close range (go wider: 0.50, 0.65, etc.)
- You usually project from very long distances and need a tighter beam (go narrower: 0.25, 0.20, 0.15)
1:0.45 (0.45) – Medium-Wide Coverage
At a glance:
A step wider than 0.33 for more generous coverage.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~4.5 ft (≈ 1.4 m) |
| 20 ft (≈ 6.1 m) | ~9.0 ft (≈ 2.7 m) |
| 30 ft (≈ 9.1 m) | ~13.5 ft (≈ 4.1 m) |
Great when:
- You’re in ballrooms or lobbies where 0.33 looks a bit small
- You want your logo or pattern to occupy more wall/floor space without going into extreme wide territory
Maybe choose another lens if:
- You’re in a Bright Light Setting and don’t have much wattage to spare
- You need either very tight (0.25 and down) or very wide (0.65+) looks
1:0.50 (0.50) – Wide Beam for Larger Projections
At a glance:
Wide lens for bigger, more impactful projections in medium to large spaces.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~5.0 ft (≈ 1.5 m) |
| 20 ft (≈ 6.1 m) | ~10.0 ft (≈ 3.0 m) |
| 30 ft (≈ 9.1 m) | ~15.0 ft (≈ 4.6 m) |
Great when:
- You want your projection to really stand out on a dance floor or feature wall
- You work mostly in Dark or Average Light Settings with decent wattage (e.g. 80–120 W+)
Maybe choose another lens if:
- You’re in a Bright Light Setting and your projector wattage is modest
- You need to keep the projection very intense at longer distances
1:0.65 (0.65) – Very Wide, Big Coverage
At a glance:
Very wide lens for big wall/ceiling coverage and large-format looks.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~6.5 ft (≈ 2.0 m) |
| 20 ft (≈ 6.1 m) | ~13.0 ft (≈ 4.0 m) |
| 30 ft (≈ 9.1 m) | ~19.5 ft (≈ 6.0 m) |
Great when:
- You want a big, dramatic projection for weddings, galas, and large walls/ceilings
- You use a higher-wattage projector in Dark or Average Light Settings
Maybe choose another lens if:
- Your Light Setting is Bright, or your projector wattage is on the low side
- You need a very sharp, logo-style projection at long distances (narrower lens will hold brightness better)
1:0.90 (0.90) – Super-Wide Scenic Beam
At a glance:
Super-wide lens for very large scenic or decorative projections.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~9.0 ft (≈ 2.7 m) |
| 20 ft (≈ 6.1 m) | ~18.0 ft (≈ 5.5 m) |
| 30 ft (≈ 9.1 m) | ~27.0 ft (≈ 8.2 m) |
Great when:
- You want to cover a large wall or ceiling with a gobo pattern
- You’re creating scenic or ambient decorative effects rather than a small logo
Maybe choose another lens if:
- You’re in Bright Light Settings (daytime stores, bright lobbies, outdoor dusk)
- Your wattage is limited and brightness is your main concern
1:1.00 (1.00) – Ultra-Wide Coverage
At a glance:
Ultra-wide coverage for maximum size at short to medium throws.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~10.0 ft (≈ 3.0 m) |
| 20 ft (≈ 6.1 m) | ~20.0 ft (≈ 6.1 m) |
| 30 ft (≈ 9.1 m) | ~30.0 ft (≈ 9.1 m) |
Great when:
- You want a huge projection in a dark or low-light room from modest distances
- You’re doing creative scenic work and have enough wattage to support the large diameter
Maybe choose another lens if:
- You need crisp logo readability in Average or Bright Light Settings
- Your projector wattage is limited; a medium lens like 0.33 often balances size and brightness better
1:1.30 (1.30) – Extreme Wide (Use With Care)
At a glance:
Extreme wide lens for specialty effects at short throw.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~13.0 ft (≈ 4.0 m) |
| 20 ft (≈ 6.1 m) | ~26.0 ft (≈ 7.9 m) |
| 30 ft (≈ 9.1 m) | ~39.0 ft (≈ 11.9 m) |
Great when:
- You’re very close to the projection surface and want an extra-large pattern
- The Light Setting is Dark, and you’re using a high-wattage projector
Important notes:
- Not recommended if the projector is mounted more than ~15 ft (≈ 4.5 m) away
- Not recommended in Bright Light Settings
- Use mainly for short throws in dark environments, and primarily for patterns rather than detailed logos
1:1.40 (1.40) – Maximum Spread (Specialty)
At a glance:
The widest lens option—used for maximum spread from close ranges.
Projection diameter examples:
| Distance | Approx. Projection Diameter |
|---|---|
| 10 ft (≈ 3.0 m) | ~14.0 ft (≈ 4.3 m) |
| 20 ft (≈ 6.1 m) | ~28.0 ft (≈ 8.5 m) |
| 30 ft (≈ 9.1 m) | ~42.0 ft (≈ 12.8 m) |
Great when:
- You want very wide coverage from a short distance in a dark space
- You’re doing artistic or decorative patterns, not fine logo details
Important notes:
- Spreads light over a very large area
- Not recommended for throws over ~15 ft (≈ 4.5 m) or in Bright Light Settings
- Use only in dark rooms with strong projectors, and set expectations that this is more of a wide decorative look than a precision logo
Fine-Tuning Projection Size With Artwork
Lenses set the maximum practical projection diameter at a given distance. You can always make the projection a bit smaller by:
- Printing your logo or artwork smaller on the gobo slide, instead of using the full gobo area.
So if you’re between two lens choices, it’s often smart to pick the lens that covers your largest expected scenario, then fine-tune smaller setups by scaling the artwork.
Why Order Extra Lenses?
Ordering additional gobo projector lenses gives you true flexibility. One Infinity Projectors unit can cover:
- Small rooms
- Larger rooms
- Outdoor facades
…simply by swapping lenses.
Example: Event planner with a 120 W Infinity Projectors setup (indoor use)
Scenario 1 – Small indoor room
- Distance: 12 ft (≈ 3.7 m)
- Desired projection diameter: ~6 ft (≈ 1.8 m)
- Great choice: 1:0.50 (0.50) lens
- 12 ft × 0.50 ≈ 6 ft (≈ 1.8 m)
- Result: A strong, well-sized logo in a modest-sized room.
Scenario 2 – Larger room
- Distance: 20 ft (≈ 6.1 m)
- Desired projection diameter: ~6 ft (≈ 1.8 m)
- Great choice: 1:0.33 (0.33) lens
- 20 ft × 0.33 ≈ 6.6 ft (≈ 2.0 m)
- Result: Similar apparent size from a longer throw.
With just two lenses (0.50 and 0.33), that mid-power 120 W Infinity projector can handle both types of indoor events. No extra projector required—just change the lens and join the projection revolution wherever you go. Note that we recommend more then 120W for larger rooms and projections with brighter settings.
For our highest-wattage outdoor projectors (150 W+), tighter lenses like 0.25 and below are often used for long distances and bright environments.
Infinity 3D Prism Lenses
For extra impact, Infinity Projectors offers 3D Prism Lenses that split and transform one gobo into multiple projections. These are ideal when you want your projection to feel more dynamic, multi-point, and “infinite”.
Infinity TriScope 3D Prism Lens (Triangular Prism – 3 Projections)
What it does
The Infinity TriScope 3D Prism Lens uses a triangular prism to split a single gobo into three separate projections. You see three copies of your design arranged in a triangle or fan-like pattern, creating a multi-image 3D effect that feels much more energetic than a single projection.
Approximate effective lens ratios
Because TriScope spreads the light into three projections, the overall spread acts a bit differently than a standard single-image lens. For planning distance and projection diameter, you can use these approximate effective lens ratios:
- On 35 W – 100 W projectors:
- Approx. effective lens ratio ≈ 1:0.50 (0.50)
- On 150 W – 700 W projectors:
- Approx. effective lens ratio ≈ 1:0.60 (0.60)
You can still use the same formula:
Projection diameter (ft) ≈ Distance (ft) × effective lens ratio
Projection diameter (m) ≈ Distance (m) × effective lens ratio
Just remember you’re now seeing three projections instead of one.
Best uses
- Dance floors and ceilings where you want three moving logos or icons
- Stage backdrops that benefit from a cluster of repeated projections
- Medium-sized spaces where three projections fill the area nicely
Artwork tips
- Choose simple shapes and bold symbols
- Great with stars, hearts, fish, and abstract geometric patterns
- For logos, use minimal text and a strong, recognizable icon
Wattage & Light Setting
- The light is divided into three beams, so each projection receives less light than a single standard lens
- Works best with medium to high-wattage Infinity projectors in Dark or Average Light Settings
- In Bright settings, treat it as a more subtle, decorative effect or increase your wattage for best impact.
Infinity PentaScope 3D Prism Lens (Pentaprism – 5 Projections)
What it does
The Infinity PentaScope 3D Prism Lens uses a pentaprism to create five projections of the same gobo. The result is a star-like cluster of projections—one design multiplied into a rich, multi-point pattern.
Approximate effective lens ratio
Because PentaScope splits your light into five projections, the overall spread is wider. For planning:
- On 35 W – 700 W projectors:
- Approx. effective lens ratio ≈ 1:0.65 (0.65)
Again, use:
Projection diameter (ft) ≈ Distance (ft) × 0.65 (approx.)
Projection diameter (m) ≈ Distance (m) × 0.65
This gives you a good estimate of the diameter of the cluster of five projections at a given distance.
Best uses
- Large dance floors, stages and club ceilings where one projection isn’t enough
- Multi-point decorative looks and 3D-style gobo effects
- High-energy shows, themed parties and installations that need a strong visual highlight
Artwork tips
- Loves simple, high-contrast designs
- Great with repeating motifs like stars, snowflakes, bubbles, fish, flowers and abstract shapes
- Avoid dense, text-heavy gobos; small text becomes harder to read when split into five
Wattage & Light Setting (very important)
- PentaScope splits your light into five beams, so each projection receives less light than TriScope’s three
- Works best with higher-wattage Infinity projectors in Dark or lower-Average Light Settings
- In Bright spaces, expect a softer, decorative multi-point effect rather than a sharp, high-contrast projection
Ideal Artwork for 3D Prism Lenses
Both prism lenses work best with:
- Simple, high-contrast graphics
- Minimal or no text
- Symbols and shapes that still look good when multiplied, such as:
- Stars, snowflakes, fireworks
- Fish, bubbles, leaves, flowers
- Simple icons or logos without fine details
Text-heavy designs or very small fonts can become hard to read when split into multiple projections, so we recommend using clean, bold artwork for the best 3D prism effect.
FAQ – Lenses & Lens Packages
Q1: How hard is it to change the lens on an Infinity Projectors unit?
A: It’s designed to be straightforward. On most Infinity Projectors:
- You loosen or twist off the front lens housing or retaining ring.
- Gently remove the current lens.
- Insert the new lens in the same orientation.
- Tighten the ring or housing back into place.
There’s no rewiring and no deep disassembly. If you’re comfortable changing a light bulb or camera lens, you can change an Infinity lens.
Q2: Do you recommend that I buy extra lenses?
A: For many customers—especially professionals who move the projector between different rooms or venues—the answer is yes.
Extra lenses make one projector behave like a flexible toolkit:
- Tight lens (e.g. 0.25) for longer distances and brighter looks
- Medium lens (0.33) for everyday indoor events
- Wide lens (0.50 or 1.1) for larger projections in darker rooms
If you work in different venues, at different distances, or want both tight logos and large decorative projections, extra lenses are one of the best upgrades you can make.
Q3: What lens packages does Infinity Projectors offer?
We’re rolling out discounted lens packages so you can build a flexible kit at a better value than buying lenses one by one.
Planned bundle pricing:
- 3-Lens Pack: $208.88
- 5-Lens Pack: $358.88
If a pack includes a 3D Prism Lens (TriScope or PentaScope), that 3D lens would carry a small +$25 upcharge inside the bundle (per 3D lens) to account for its more complex optics.
To take advantage of a 3-lens or 5-lens package, please contact us directly and we’ll put the discounted bundle together for you.
Q4: Can I mix standard lenses and 3D Prism lenses in a bundle?
A: Yes. That’s the idea. Each selected 3D Prism lens in the pack adds an additional $25.
Contact us and we’ll help you design a mixed bundle that fits your needs.
With the right mix of lens ratio, projection distance, projection diameter, Light Setting, and wattage, your Infinity Projectors setup can go from a precise, tight logo to a large, multi-image light canvas— all from the same projector, simply by changing lenses and joining the projection revolution.
