If you've stumbled across the term "full spectrum camera" and wondered what it means, you're not alone. Full spectrum cameras are a fascinating piece of kit that open up a whole new world of photography — one invisible to the naked eye.
The Basics: What Light Can Your Camera See?
Standard digital cameras are designed to mimic human vision. Manufacturers fit them with an internal filter — called a hot mirror or IR cut filter — that blocks ultraviolet (UV) and infrared (IR) light, allowing only visible light to reach the sensor. This keeps colours looking natural and familiar.
A full spectrum camera has either had this filter removed (or replaced with a clear glass equivalent), allowing the sensor to capture the full range of light: UV, visible, and infrared. The result? A camera that sees the world in ways your eyes simply can't. For a clear explanation of what a full spectrum camera is not, read: What a Full Spectrum Camera Is NOT!
What Can You Do With a Full Spectrum Camera?
The creative and scientific possibilities are enormous:
- Infrared Photography — Foliage glows white, skies turn dramatically dark, and landscapes take on an ethereal, dreamlike quality. IR photography is one of the most distinctive and striking styles in modern photography. Read our complete guide to post-processing infrared photos to get started.
- UV Photography — Reveal hidden patterns on flowers, minerals, and surfaces that are completely invisible under normal light. Used extensively in scientific and forensic research. See: Full Spectrum Cameras for Plant and Botanical Photography.
- Astrophotography — Without the IR cut filter, sensors become more sensitive to hydrogen-alpha emissions, making full spectrum cameras popular for capturing nebulae and deep-sky objects. Read: Why a Full Spectrum Camera is Better for Astrophotography.
- Forensic and Scientific Imaging — Used in medical, archaeological, and forensic fields to reveal details hidden from standard cameras. Read: Full Spectrum Cameras in Scientific Research.
- Paranormal Investigation — A full spectrum camera is one of the most capable tools for documenting environments in the dark. Read: Setting Up Your Full Spectrum Camera for Paranormal Investigation.
How is a Full Spectrum Camera Made?
Most full spectrum cameras are converted from standard digital cameras — typically popular mirrorless or DSLR bodies. A skilled technician opens the camera, removes the internal hot mirror or UV cut filter, and either adjusts the focus on the sensor posts or replaces it with optically clear glass to maintain focus accuracy. The result is a camera that retains all its original functionality but with dramatically expanded light sensitivity. For a detailed walkthrough of the conversion process, read: Inside the Full Spectrum Conversion Process.
When it comes to choosing a camera for conversion, mirrorless bodies are significantly better than DSLRs — read our full breakdown of why a mirrorless camera is far better than a DSLR for full spectrum conversion. Maintaining accurate autofocus after conversion is one of the most technically demanding parts of the process — read why a mirrorless full spectrum converted camera needs focus recalibration and our detailed guide to shimming for perfect infinity autofocus after a full spectrum conversion.
Popular conversion candidates include Sony mirrorless cameras like the NEX series, A6000, and A7 — all of which offer excellent sensor performance and a wide range of compatible lenses. For more on why the Sony A7 is an excellent choice, read: Why the Sony A7 is One of the Best Cameras to Convert to Full Spectrum.
Do I Need Special Lenses or Filters?
Yes — to shoot in a specific spectrum, you'll use screw-on filters in front of your lens to block out the light you don't want. For example:
- An IR filter (such as a 590nm, 680nm, or 720nm filter) blocks visible light and lets only infrared through.
- A UV filter blocks visible and IR light, passing only ultraviolet.
- No filter at all gives you the full spectrum — a mix of UV, visible, and IR light.
- A UV/IR Cut filter puts the camera back into the regular visible range.
This flexibility is one of the great advantages of a full spectrum conversion — one camera body can serve multiple disciplines simply by swapping filters. For a complete guide to all the filters available, read: Essential Filters for a Full Spectrum Camera.
Why Choose a Converted Camera Over a Dedicated IR Camera?
Dedicated infrared cameras are available, but a full spectrum converted camera gives you far more versatility. You can shoot standard visible light photography, infrared, UV, or full spectrum — all with the same body. For a detailed comparison, read: Full Spectrum vs Dedicated IR Conversion — Which is Right for You?
Ready to See the Invisible?
If you're ready to buy, our Full Spectrum Camera Buying Guide covers everything you need to know before choosing a camera. Or browse our range of full spectrum converted cameras and start seeing the world differently.