Baader Semi APO 1.25-inch Filter

Product Image

The Baader Semi APO filter combines the Neodymium Skyglow and Fringe Killer filters into one, drastically increasing contrast while cutting out the blue and near-infrared (NIR) ends of the spectrum.

OUR PRICE $149.00

Dispatch in 3-5 Days

Add to wishlist

Shipping Calculator

    The Baader Semi APO filter has unique properties that result from the combination of the Fringe Killer's blue wavelength attenuation (attenuation - not total elimination), plus the selective Neodymium RGB passbands, resulting in a significant contrast enhancement of Martian features. Unlike other manufacturer's filters, the image retains its natural colouration and brightness, and the optically polished surfaces maintain every bit of the image sharpness.

    The high quality of Baader Planetarium filters permits their use well ahead of the focal plane with no image degradation (ie, for cameras or binoviewers). The inclusion of Baader's renowned UV/IR Cut coatings on the Semi-APO eliminates UV and IR wavelengths to make it ideal for high-resolution imaging with Webcams, DSLR, and CCD cameras (see the UV/IR Cut filters below, for more detail on these coatings). The high transmission and fringe reduction work great for both planetary and deep sky imaging.

    Transmission range Multiple bands - see spectrum image
    Type of filter Bandpass
    Usage Contrast enhancement, colour correction, IR-Cut
    AR-coating Phantom Group coating, planeoptically polished
    Filter thickness 1 mm (without cell), 6 mm with cell


    Baader Planetarium

    Baader Planetarium is a renowned manufacturer of high-quality astronomical equipment such as telescope and camera adapters, filters, eyepieces, and laser collimators. Their products are distinguished by their exceptional quality and innovation, which has earned them the admiration of both amateur and professional astronomers.
    Their unwavering commitment to providing outstanding customer service and support has helped them establish a loyal customer base worldwide.
    With a team of skilled engineers and technicians, Baader Planetarium continues to pioneer new and innovative products that cater to the evolving needs of the astronomy community.

    Product Code: BAA-2458398

    Write Your Own Review
    You're reviewing:Baader Semi APO 1.25-inch Filter
    Your Rating
    You may also be interested in the following product(s)