Explore our comprehensive collection of technical information that provides valuable guidance and expertise to drive your projects and initiatives. Whether you're looking for in-depth analysis, practical tutorials, or expert perspectives, our Knowledge Hub is your gateway to unlocking the knowledge you need to succeed. Learn about a wide range of topics related to lenses, optical filters, optical systems and cutting-edge technology. From understanding the intricacies of lens design to delving into the latest advances in optical engineering. Please use the search bar below to find topics and more information.
By Michael Haag
In our pursuit of product improvement, we have ventured into a new path of surface-coating technology. This approach provides novel possibilities for coating optical elements.
Learn moreBy Dr. Karl Lenhardt
Dive into our comprehensive guide as we explore the critical factors to consider when choosing a lens. From image quality to features and beyond, we'll equip you with the knowledge you need to make the right choice for your imaging needs.
Learn more„Variogon" is the brand name for a vario-lens made by Schneider-Kreuznach. But what is a vario-lens? It is a lens that has no fixed focal length and can be changed by the user with certain limitations. This is accomplished without having to bring the image of the subject into focus again and again each time the focal length is changed. A lens of this kind is also known as a zoom lens.
Learn moreBy Lothar Völker and Michael Schulz-Grosser
To minimize disruptive reflection losses, optical components such as lenses and eyeglasses are now equipped with highly effective antireflective coatings. However, the measurement methods used in quality control using scanning spectrophotometers are often non-destructive in practice and can hardly be used at arbitrary locations on a curved surface. A special measurement head design in conjunction with a diode array spectrometer provides a solution.
Learn moreExplore aspects of how light interacts with different surfaces. We offer insights into the phenomena that occur when light strikes materials, such as fluorescence, reflection, remission, absorption, and polarization. Learn about the importance of light to our perception and imaging.
Learn moreThe text presents an overview of electromagnetic radiation, covering its various forms from radio waves to gamma rays and how they follow consistent laws despite differences in perception. It discusses the nature of light, color perception, and the practical applications of understanding color temperature. Overall, it emphasizes the significance of these concepts across different fields, from technology to human perception.
Learn moreSince its foundation in 1913, Schneider-Kreuznach has acquired many German and international patents in the field of precision mechanics/optics based on its core competencies. This has resulted in many brands such as Xenon, Symmar, Xenoplan, Variogon, Cinelux, etc.
Learn moreBy Stuart W. Singer and Jim Sullivan
The human eye perceives wavelengths between 0.400 μm (blue) and 0.700 μm (red) as white light. Standard lenses are optimized for white light, but issues can arise with non-white light sources in digital camera-based vision systems. Defining lighting requirements early is crucial. A case example using a 75 mm f/3.0 lens is discussed, focusing on selecting wavelengths and achieving desired modulation transfer function (MTF) values.
Learn moreThe following chart is intended to help you establish the age of your Schneider-Kreuznach lens. Simply locate your lens's serial number in the chart below, and you can find out approximately how old it is.
Learn moreThe modulation transfer function (MTF) is a parameter for assessing the performance of a lens. Find out how it works.
Learn moreOptical filters make it possible to control the effect of different types of light on the sensor. These filters are defined by their characteristic filter curve, which shows how much light they transmit or absorb. By understanding this curve, photographers can better adjust light sources and sensors to achieve the desired effects.
Learn moreProvide uniform, shadow-free illumination with integrated coaxial light division.
Learn moreColor errors occur because the refractive index of optical glass varies for different wavelengths (colors). This phenomenon is called dispersion. There are two classes of chromatic aberration.
Learn moreIf the sensitivity of the image sensor is to be used in the near infrared range, lenses must be used that have sufficient transmission and imaging performance in this wavelength range (approx. 700-1000 nm).
Learn moreFind out how natural light affects your shots, how daylight is made up of sunlight and diffuse light and how the color temperature changes depending on the location and conditions. The text describes the characteristics of sunlight, moonlight and artificial light and the challenges of taking pictures under these conditions.
Learn moreWe explain the basics of optics and our products to students and interested people with little previous knowledge.
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