Blocks stray light when using the Baader UFC filter system with camera lenses Prevents internal reflections and gradients on long exposures Ensures maximum image contrast for wide-field astrophotography Includes the necessary mounting plate for the UFC Base (#2459110) Description FAQ Specifications In the Box Downloads Warranty Baader UFC Straylight Shield The Baader UFC Straylight Shield is the essential component for adapting the Universal Filter Changer (UFC) system for use with camera lenses. It is specifically engineered to close the physical gap between the front of the UFC Base and the rear of a lens, eliminating the path for off-axis stray light to enter the optical train. This prevents unwanted gradients, reflections, and loss of contrast during long exposures, ensuring a clean, dark background for wide-field imaging. Eliminate Reflections for UFC Camera Lens Imaging When assembling a wide-field imaging train with a camera lens and the Baader UFC, the modular nature of the system can leave small gaps that are vulnerable to stray light from the moon or local light pollution. The UFC Straylight Shield creates a light-tight enclosure around this critical junction. By blocking internal reflections before they can reach the sensor, it preserves the faint details in nebulae and galaxies, turning a modular filter system into a seamless imaging tool. What is the purpose of the Baader UFC Straylight Shield? The Baader UFC Straylight Shield is designed to block ambient light from entering the optical path between a camera lens and the Baader Universal Filter Changer (UFC) base. This prevents reflections, light gradients, and reduced contrast in your final images, which is critical for long-exposure astrophotography. When do I need the Baader UFC Straylight Shield? You need this shield specifically when you are mounting the Baader UFC system directly to a camera lens for wide-field imaging. It is not required for configurations where the UFC is attached directly to a telescope's threaded focuser, which already provides a light-tight connection. Will the Baader UFC Straylight Shield help when imaging a faint nebula like the North American Nebula (NGC 7000) with a camera lens? Absolutely. When capturing faint, extended objects like the North American Nebula (NGC 7000), long exposures are necessary. The Straylight Shield is crucial in this scenario to protect your image from being washed out by moonlight or local light pollution, ensuring the faint nebulosity is captured with maximum contrast. How does the Baader UFC Straylight Shield attach to the system? The shield comes with an integrated mounting plate that attaches directly to the Baader UFC Base (#2459110). This creates a secure, light-proof housing around the filter changer assembly, seamlessly integrating it with your camera lens adapter. I'm getting weird reflections when using my Baader UFC with a 135mm camera lens. Is this the solution? Yes, this is the most likely solution. Reflections and odd gradients when using a camera lens with a filter system are almost always caused by stray light entering the system between the lens and the filter. The Baader UFC Straylight Shield is designed precisely to solve this problem for your 135mm lens setup. Is the Baader UFC Straylight Shield compatible with telescope-side UFC configurations? No, this shield is specifically designed for camera-lens-side applications. When the UFC is connected to a telescope focuser, the adapters create a sealed, light-tight path, and this shield is not necessary. Net weight (kg) 0.03 Inner Diameter / Clear Aperture (mm) 65 Outer Diameter 89 Type of Adapter Reducing Adapter Optical length (mm) 2 Baader UFC Straylight Shield with Mounting Plate × 1 Baader Planetarium Universal Filter Changer UFC Technical Drawings Baader Planetarium Warranty
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