Astronomik CLS Clip Filter

The filter is designed to sit securely inside the camera body, directly in front of the sensor. It does not interfere with the shutter mechanism or the autofocus system, though you should always ensure the filter is clean and properly seated to avoid any potential obstruction.

This filter is compatible with most Canon EF and EF-S lenses used on APS-C bodies. However, it cannot be used with Canon EF-S lenses that protrude deep into the camera body, as they may physically contact the filter.

The CLS filter is specifically engineered for astrophotography and deep-sky observation. Using it during the day will result in significant color shifts, as it is designed to block specific wavelengths of artificial light rather than balance natural daylight.

Yes, because the filter blocks specific wavelengths of light, you will need to increase your exposure time compared to shooting without a filter. The exact adjustment depends on your local light pollution levels and the specific celestial object you are capturing.

No, this specific model is designed exclusively for Canon EOS APS-C sensor bodies. Using it on a full-frame camera will likely cause vignetting or physical interference with the larger mirror box.

Because the optical surface is scratch-resistant, you can clean it using standard, high-quality optical lens cleaning fluid and a microfiber cloth. Always use a blower bulb first to remove loose particles before attempting any contact cleaning to avoid scratching the coating.