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829 zł
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price without VAT: 673,98 zł
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The Sharpstar 61EDPH III f/4.4 Full-Frame reducer was developed as a dedicated accessory for the Sharpstar 61EDPH III astrograph. It guarantees excellent field correction, which makes it work perfectly with professional cameras and camcorders equipped with a full-frame matrix.
This reducer reduces the focal length by a factor of 0.75x, which in the case of the Sharpstar 61EDPH III astrograph gives a value of 270 mm at f/4.4. Such parameters allow not only to take breathtaking photos in a wide field of view, but above all to significantly shorten the exposure time.
This device allows the installation of filters with a diameter of 2", screwed into the M48x0.75 thread on the camera side. • focal reducer dedicated to the Sharpstar 61EDPH III astrograph, compatible with full-frame cameras and cameras
• lenses fully multi-coated
• 0.75x factor giving an effective focal length of 270 mm at f/4.4
• can be used with filters with a diameter of 2" • optical design: quadruplet
• multiplicity: 0.75
• coating type: full multi-layer coating (FMC)
• compatibility: Sharpstar 61EDPH III
• focal length without reducer: 360 mm
• focal length with reducer: 270 mm
• Exposure without reducer: f/5.9
• Exposure with reducer: f/4.4
• rear thread (camera side): M48x0.75 / M54x0.75
• front thread (extractor side): M68x1
• possibility of installing a filter: yes, 2"
• back focus: 55 mm / 75 mm
• length: 104 mm
• weight: 0.4 kg • Sharpstar 61EDPH III f/4.4 Full-Frame reducer 24 months
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