SV164 Dark Frame Imaging Filter (1.25" or 2")

The SV164 Dark Frame Filter is designed to block all incoming light, allowing you to quickly capture dark frames for calibration. Dark frames help reduce sensor noise, amp glow, and hot pixels, ensuring cleaner stacked images in astrophotography.

• Capture dark frames instantly: Blocks light completely so your camera can record accurate noise data for processing and calibration.
• Available in 1.25" or 2" sizes: Choose the version that matches your filter wheel, drawer, or imaging train.
• Durable metal construction: Black anodised housing resists wear, corrosion and fading.
• Threaded for easy setup: Can be installed directly into filter wheels, drawers or filter cells for rapid filter changes.
• Protective storage case included: Foam-lined plastic case keeps the filter safe during transport and storage.

Why Use a Dark Frame Filter?

Instead of covering your telescope or removing the camera, simply rotate or slide in the SV164 filter to take dark frames anytime — even during an imaging session. This is especially helpful when temperature conditions change throughout the night.