Cameras for Technical Photography
Table of Contents
Nikon D850
The Nikon D850 is the camera we use and recommend in our technical photography kits for art examination. When it was first introduced, it immediately proved to be a robust, high-resolution, and extremely reliable DSLR. With its 45.7 MP full-frame sensor, excellent dynamic range, and solid build quality, it remains — even today — a highly capable tool for ultraviolet, visible, and infrared documentation.
We propose the Nikon D850 primarily because we have tested it extensively over many years in real conservation and diagnostic workflows. It performs consistently with our filter sets, calibrated illumination systems, and technical imaging protocols. Most importantly, standardizing on one model simplifies assistance and training: we know the menus, settings, and behavior of this camera in detail, which allows us to support users efficiently and confidently.
That said, any full-spectrum modified camera can be used with our Technical Photography kit. Our filters, lamps, and methodology are not brand-dependent. We simply recommend the D850 to streamline workflow and technical support — but the choice ultimately remains flexible.
Nikon D800 (used)
As a more affordable alternative to a new Nikon D850, we also propose the used Nikon D800. This camera has been extensively tested within our technical photography workflow and has proven to be a reliable and fully compatible solution for art examination.
Although it predates the D850, the D800 offers a high-resolution full-frame sensor (36.3 MP), excellent dynamic range, and strong RAW performance — all essential characteristics for ultraviolet, visible, and infrared documentation. When modified to full spectrum, it integrates seamlessly with our filter sets, calibrated illumination systems, and standardized imaging procedures.
In practical terms, we can acquire the same set of Technical Photography images with the D800 as we do with the D850, expecting equivalent analytical results. The spectral response, image quality, and overall consistency meet the requirements of conservation science, material identification, and condition assessment.
For institutions or professionals seeking a cost-effective entry into full-spectrum technical photography without compromising scientific reliability, the used D800 represents a very solid option. It allows users to maintain methodological consistency within our system while reducing initial investment costs.
How is the camera modified for UV-IR photography
Let’s see the actual filters taken out of a modified camera!
Color Calibration
Because of differences in technologies and variations in manufacturing processes, every camera captures colors slightly differently—even two identical models from the same company can produce different results.
While the RAW processing software you use might already include a profile for your camera model, you can achieve even better results by creating a custom profile tailored to the RAW output of your specific camera.
That’s why we color calibrate each full-spectrum camera we deliver. Color accuracy is essential for art documentation, especially when working with paintings where subtle variations matter.
To ensure consistent results, we use the X-Rite ColorChecker Passport and its bundled software. The ColorChecker Passport Classic Target is the industry-standard color reference for creating DNG profiles and evaluating specific colors. [Read more about color calibration for DSLR cameras.]
Each calibrated camera includes a disk with its custom color calibration profile and the results of our UV, VIS, and IR photography tests.
Spectral Range Test
Before we ship each camera, we test it with the Robertina filters set for Technical Photography. The camera shoots a VIS image of Pigments Checker, and we can evaluate how the color profile is performing. Then we shoot a UVR photo where titanium white and zinc white are supposed to appear black, while lead white is bright. Eventually, the test photo for IR shows how smalt has become transparent.
Do you really need a modified UV-VIS-IR camera?
We made the test. We shot our pigments checker with a Nikon D800 without any modification, such as one camera that you can buy in any shop. Then we shot with our Nikon D800 modified for UV-VIS photography. We kept the same conditions (aperture, shutter speed, UV and IR radiation intensity, distance camera – subject).
