The FS-102 is a state-of-the-art fluorite apochromatic refractor. It is capable of delivering ultra sharp high contrast images over the entire field of view. The images are totally free of chromatic aberrations. Stars appear as tack-sharp points of light on a jet-black background. The instrument is perfect for photo/visual studies of the Moon, the planets and is also a phenomenal wide field astrograph. Using the dedicated focal reducer, the FS-102 becomes a wide field astro camera with an amazing 5-degree field of view! Perfect for use with a 35mm camera or a medium format custom vacuum back 6x7 roll film holder (a Takahashi?? exclusive). The FS-102's standard 2.7" focuser makes this possible.