Lighting Setup

Camera quality matters. Sensor matters. Lens matters. But the single biggest determinant of whether a product photo looks like the product or like a sad copy of the product is the lighting. PhotoRobot studios that get lighting right ship images that need almost no editing. Studios that get it wrong spend hours in Photoshop fixing problems that good lighting would have prevented.

1. Why lighting is its own module

The camera captures what arrives at the sensor; the lights determine what arrives at the sensor. Same camera, same lens, same robot — change only the lighting setup and the captured images can range from “client approves on first review” to “client asks why the photos look so dim and yellow.”

This module covers the fundamentals of lighting in a PhotoRobot context: continuous vs strobe, light placement, the Freemask 2-light workflow, the ceiling rail system, and how CAPP exposes lights as objects you can configure and save into presets.

Where this fits: m08 (Camera config) gave you the camera side. m09 (this module) gives you the light side. m10 (Lighting hardware) covers the specific FOMEI LED units and Broncolor Siros strobe operation in depth — including the network configuration that strobes need. If your role is operator, m09 + a quick m10 skim is enough. If your role is hardware specialist, m09 + a full m10 are mandatory.

2. Continuous vs strobe — the foundational decision

Studio lighting comes in two fundamentally different technologies, and the choice between them determines everything else: camera settings, capture speed, color rendering, even power requirements.

2.1. Continuous lights (LED panels)

Continuous lights are always on. They emit a steady, constant amount of light that the camera sees during the entire exposure. In PhotoRobot studios, continuous lights are typically LED panels (FOMEI DMX-LED 150B / 300B / 600B are the standard kit).

Use continuous when:

• Shooting video — strobes can’t fire for the full duration of a video clip, so continuous is the only option
• Doing handheld work via PhotoRobot Touch (iPhone) — phone cameras don’t trigger external flash reliably; constant light is needed
• The operator needs to see the lighting in real time before triggering capture (live-view composition with accurate exposure)

Continuous trade-offs:

• Less peak intensity than strobe — for the same brightness on the subject, continuous needs much more electrical power, and produces measurable heat
• Color accuracy depends on the LED quality; cheap LEDs have inconsistent CRI (color rendering index)
• Slower spin shutter speeds required to gather enough light → reduces non-stop spin productivity vs strobe

2.2. Strobe lights (flash)

Strobes are off until triggered. They emit a single, very brief, very bright pulse of light synchronized with the camera shutter. In PhotoRobot studios, strobes are typically Broncolor Siros 400/800 monolight series (the recommended hardware for production).

Use strobe when:

• Shooting stills in production — almost always the right answer
• Doing high-speed spin photography — strobes recharge fast enough to support PhotoRobot’s non-stop spin mode (4× faster than start-stop traditional capture)
• Color accuracy is critical — high-end strobes have very tight, calibrated color temperature (typically 5500K daylight)

Strobe trade-offs:

• Cannot light video — strobes fire briefly; video needs continuous light
• Requires synchronization between camera shutter and strobe trigger (handled by the Broncolor RFS 2.1 transceiver in PhotoRobot setups)
• Recharge time between flashes — cheap strobes recharge slowly and limit spin speed; this is why PhotoRobot recommends Broncolor specifically

2.3. Mixed setups

Some studios run both technologies in the same physical space. A typical pattern:

• Strobes mounted to the ceiling rail, fired for production stills (the daily workflow)
• LED panels on stands, switched on when video is being shot
• The two are not used simultaneously — strobe pulses on top of continuous light produce unpredictable exposure

If your studio captures both stills and video, m05 (Workspace) workspaces can be configured for each technology — one workspace for “stills production” with strobe-driven exposure presets, another for “video” with continuous lights.

3. Light placement — the 4-light template

A standard PhotoRobot stills setup uses 4 light positions around the subject. Studios with simpler products may use fewer; studios doing complex hero shots may use more. The 4-light template is the canonical starting point:

For flat product photography (e.g., apparel laid flat, books, electronics on a turntable), the 4-light template is often simplified to:

• Two front lights (key + fill, balanced for even illumination)
• One background light (driving the backdrop to pure white for clean masking)

For dimensional products (handbags, shoes, sculpture, vehicles), the full 4-light template plus extras (hair light, kicker, edge accents) is typical.

Why placement matters more than power

A common operator mistake is to compensate for poor placement by raising light power. The result is harsh shadows or flat exposure. Repositioning a light 30 cm closer to or further from the subject usually has more visual impact than doubling its power output. Position first, power second.

4. The Freemask 2-light workflow

PhotoRobot’s killer feature in mass-production photography is Freemask — automatic background removal at capture time, without manual rotoscoping. Freemask requires a specific 2-light setup:

Setup

• Front lights — illuminate the subject (front-facing, soft, well-distributed)
• Back lights — illuminate the backdrop from behind, blasting it to pure white (no light should reach the front of the subject)

Workflow (covered in m06 Section 11)

1. Capture frame with front lights ON, back lights OFF → produces the main image (lit subject on dark backdrop)
2. Capture frame with back lights ON, front lights OFF → produces the mask image (silhouette of subject against blown-out white)
3. CAPP combines the two: main image foreground + mask image’s silhouette = subject on transparent background

Result: an alpha-channel PNG with the subject cleanly extracted, no manual masking required. For e-commerce studios processing thousands of SKUs, Freemask saves hours per day vs. manual background removal.

Important: Freemask requires the back lights to be physically separated from the front lights — typically the back lights are mounted on the ceiling pointing down at a white backdrop, or on floor stands hidden behind the subject. They are not the same fixtures as the front lights; they cannot be alternately swung around.

In PhotoRobot’s CAPP UI, the Freemask toggle (m06 Section 11) automatically switches between the two light banks via the connected control unit. Operator just clicks “Capture with mask” and CAPP orchestrates the rest.

5. The PhotoRobot ceiling rail system (FOMEI)

PhotoRobot recommends FOMEI ceiling rail systems as the canonical mount for studio lights. The system consists of:

• Tracks mounted to the ceiling in a grid pattern (kits available: 3×3m, 3×5m, 5×5m)
• Trolleys that slide along the tracks, allowing lights to be repositioned without taking them off the ceiling
• Pantographs (extending vertical arms) that lower the light from the ceiling track to any height between ~40cm and ~2m above the floor
• Telescopic rods as alternative to pantographs for fixed-height work

Why ceiling-mount instead of floor stands:

• No tripping hazards in the operator workspace
• Cleaner studio aesthetic — no stands cluttering the floor
• Better light positioning flexibility — slide a trolley laterally to find the optimal angle without unscrewing anything
• Cables routed cleanly along tracks instead of running across the floor

The FOMEI rail system is hardware-specialist territory for installation; operators interact with it daily (positioning the pantograph, adjusting heights). For installation specs, kit components, and load limits, see the FOMEI Ceiling System Kit manual.

Safety note: A single FOMEI pantograph can support up to 15 kg. A Broncolor Siros 800 weighs ~2 kg, so a single light is well within range. But adding modifiers (large softboxes, fresnel attachments) can quickly approach the limit — verify weight before adding hardware to existing rigs. This is m02 Safety territory.

6. Broncolor strobe management via CAPP

PhotoRobot’s strobe recommendation is the Broncolor Siros 400/800 series WiFi/RFS2 monolights. These are managed directly from inside CAPP — no separate driver installation, no operator running a Broncolor-specific control app.

Hardware components

• Broncolor Siros monolight — the light itself, mounted to the ceiling rail
• Broncolor RFS 2.1 transceiver (2.4 GHz) — mounted on the camera, fires the strobe wirelessly when the shutter triggers
• Cabling — power cable (AC) to the monolight; the RFS 2.1 is battery-powered

Software

• CAPP controls intensity, modeling light (the small built-in pilot light for composition), and standby
• BronControl app — Broncolor’s own utility, downloadable from inside CAPP. Used for first-time WiFi pairing of new units. Once paired, day-to-day operation is from CAPP, not BronControl.

Network requirements (Phase B / hardware-spec territory)

Broncolor strobes communicate over 2.4 GHz for RFS (camera trigger) and Wi-Fi (for management — intensity changes, standby, status). Broncolor’s recommended network setup includes:

• Separate subnet for lighting hardware (tested with Mikrotik RB1100AHx4 router)
• TP-Link TLWR802N WiFi module as access point
• Access Point in WPA2-PSK / AES mode, channel 9, 20 MHz width

The full network configuration is in the PhotoRobot Broncolor Lights Management manual. Network specialists configure this once; operators don’t touch it after that.

7. CAPP’s lights view (the operator’s day-to-day)

In the Capture interface (m06 Section 12 — Hardware Configuration > Lights), CAPP shows the studio’s connected lights as per-position objects. For each light position:

• Light name (operator-defined — e.g., “Key”, “Fill”, “Back-L”, “Back-R”, “Background”)
• Power level (0-100%, or in stops for Broncolor strobes)
• Modeling light (on/off — Broncolor only; the small pilot light for composition)
• Standby (on/off — saves heat / power between capture sessions)

The operator can adjust these per-light from CAPP without walking over to the actual fixtures. For larger studios with 8-12 lights, this is a major productivity win — adjustments happen in 2 seconds instead of 2 minutes.

Scopes and presets

The most powerful lighting feature in CAPP is the Scope + Preset system (m06 Section 14). A scope captures the entire lighting state — every light’s power, modeling, standby — under a named label. Common presets:

• Apparel-Spin-Standard — 4-light front + 2 back lights, all at calibrated power for Apparel-Spin
• Apparel-Spin-Freemask — same lights but back lights at 100%, front lights muted (the Freemask mask shot)
• Jewelry-Hero-Shot — single key + close fill + hair light, low background
• Video-Lighting — continuous LEDs on, strobes off

Operator selects a preset, all lights snap to the saved state, capture begins. The studio’s light kit goes from “10 fixtures to manually balance every shoot” to “one click sets up the right configuration.”

8. Common lighting mistakes

A short reference list of the issues that show up most often in real studios:

• Trying to fix poor lighting in post-processing. Lighting fixed at capture is faster, cheaper, and looks better than any amount of Photoshop. If you find yourself doing extensive shadow work in editing, the lighting at capture was wrong.
• Mixing color temperatures. Continuous LEDs at 5500K + strobe at 5500K is fine. LED at 3200K (warm) + strobe at 5500K (daylight) is a disaster — different parts of the image will have different white balance. Match all lights to one color temperature.
• Too many lights. A 12-light setup looks impressive but doesn’t necessarily look good. The classic 3-4 light template handles most products. Add lights only when you can articulate what each one does.
• Forgetting the modeling light. Broncolor’s modeling light gives the operator a preview of where the strobe will hit. Turning it off saves power but blinds the operator to composition. Default: modeling ON during setup, OFF during production runs.
• Back lights hitting the front of the subject. Freemask breaks if any back light spills onto the front of the subject. Solution: flag the back lights with cardboard / black foam blockers on the front-facing side.
• Wi-Fi interference between studio and lights. Broncolor’s 2.4 GHz can collide with corporate Wi-Fi if not isolated. Use a separate subnet (see m03 Network Setup).
• Operator changing lights mid-shoot for “improvement”. Production wizards (m07) lock in lighting via presets specifically so each item gets the same lighting. Drift = inconsistency = downstream editing problems.

9. Maintenance and color drift

Lights are wear items. Three things to monitor:

• LED panels degrade slowly (5-7 years of daily use before noticeable brightness drop). The drop is often non-uniform across the panel — re-calibrate scopes if you notice exposure differences year-over-year.
• Strobe tubes have a limited number of flashes (typically 50,000-100,000+ depending on intensity used). High-intensity flashes wear the tube faster. PhotoRobot recommends Broncolor partly because their tubes are user-replaceable, unlike disposable units.
• Color accuracy drifts with both technologies over time. Schedule a quarterly white-balance check: shoot a known color reference card (X-Rite ColorChecker), verify CAPP’s color outputs against expected values. If drift > 200K detected, recalibrate presets.

Strobe tube replacement is a hardware-specialist task — operators should escalate, not attempt.

10. For full reference

This module is the operator-level + hardware-specialist-level overview. The canonical references on photorobot.com:

• PhotoRobot — Broncolor Lights Management — full Broncolor Siros operation, network setup, BronControl pairing, mode reference
• FOMEI Ceiling System Kit User Guide — full installation guide for the 3 ceiling kit sizes, component reference, load limits
• Capturing Images with PhotoRobot — Lighting Configuration section — how CAPP exposes lights as configurable objects, per-position controls
• m10 Lighting Hardware (forthcoming) — Fomei LED DMX 150B / 300B / 600B operation, Broncolor strobe deep dive, hardware-specific troubleshooting

When designing a studio lighting layout or troubleshooting a specific fixture, open these references — they’re updated faster than this module is.

Module check

When you’re ready, take the module knowledge check for this module. It’s not graded for certification — it’s for you and your instructor to identify any gaps before moving on.

→ Take the module check  ·  5 questions, immediate feedback