The Hund dark-field condenser (NA 1.4) is a specialized accessory designed for microscopes equipped with 100x objectives. It is ideal for dark-field microscopy applications, providing high numerical aperture for enhanced imaging of transparent or unstained specimens. The inclusion of an iris and filter holder ensures precise control over illumination and contrast, making it suitable for advanced microscopy tasks in medical, biological, and research fields.

The Hund NA 1.25 large combination condenser is a versatile accessory designed for microscopes, supporting bright-field, dark-field, and phase-contrast microscopy. Its high numerical aperture ensures excellent light transmission and resolution, making it suitable for a wide range of applications in medical, biological, and research fields. The inclusion of a filter holder provides additional flexibility for controlling contrast and illumination.

The Hund NA 0.9 condenser is a reliable accessory designed for bright-field microscopes, offering precise illumination and excellent light transmission. With a numerical aperture of 0.9, it is well-suited for routine microscopy tasks that require clear and detailed imaging. The inclusion of a filter holder enhances its functionality, allowing users to adjust contrast and optimize lighting conditions for various applications in biology, medicine, and research.

The Hund NA 1.25" condenser is a high-performance accessory designed for bright-field microscopes. With its numerical aperture of 1.25, it provides excellent light transmission and resolution, making it ideal for detailed imaging in medical, biological, and laboratory applications. The integrated filter holder enhances its functionality by allowing users to adjust contrast and optimize illumination for various microscopy tasks.

A flattener is a specialized lens designed to correct the curvature of the field caused by the primary optics of a telescope. This curvature can result in stars appearing less sharp at the edges of the field of view. By using a flattener, also known as a field flattener, astrophotographers can achieve images with stars that remain sharp across the entire exposure, including the edges. The flattener is positioned between the telescope and the camera for optimal correction.