TS-Optics 65/420 Imaging Star APO 65mm f/6.5 Quadruplet Astrograph , TSAPO65Q

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Teleskop-ServiceThe TS Quadruplet Astrograph 65 mm f/6.5 of the TS Imaging Star Line offers a highly corrected focal plane for astro photography and is therefore an interesting alternative to the Takahashi FS-60 or the Pentax 75 SDHF. It is fine crafted and optimal for mobile deep-sky imaging featuring a minimum mechanical length of 340 mm (with retracted dew cap). Image quality on- and off-axis is perfect and the very low chromatic abberation allows a visual magnification range up to 150x TS APO 65 Quadruplet advantages:  fully corrected triplet lens group for colour-free imaging integrated field flattener (4th lens) for a corrected fiels up to full-size sensors optimized flattener position inside the tube for best effect 2″ dual speed focuser for high loads – no slipping, no shifting 360 rotation possibilitiy for ideal framing CNC tube rings finder shoe (Vixen/Celesstron/Skywatcher compatible) The 65 mm Quadruplets optical system – four lenses in two groups: For this lens system, FPL53 glass is used for optimal colour correction. Stars are free of colour fringes and halos which may occur with camera-side corrector applications. The fixed internal ED flattener causes an optimal image correction for sensor with a diagonal up to 44 mm. With a separate lens brought into the focuser, this can hardly be reached. This highly corrected system is additionally supported by a adequate baffling systemTS Imaging Star 65mm f/6.5 Quadruplet Astrograph – 44 mm field diameter For further selection of telescopes and accessories, please visit us in our online shop at telescope express.check out my other itemsTeleskop-Service is your competent partner for astronomy, photography and landscape observation. fascination of space and natureDelivery:   PHOTOLINE 130 mm f/7 Apo 3,7″ RPA PHOTOLINE focuser with 2″ and 1,25″ adapter CNC tube rings and GP level dovetail bar             Specifications:  Aperture:           65 mmFocal length:      420 mmPhotographic speed:     f/6.5Diameter of the corrected field:              44 mmBack focus from 2″ receptactle:               110 mmWeight:               2.8 kg (with tube rings)Focuser:              2″ RP with improved bearing, 360 rotation and ring clampingMechanical length:         340/375 mm with retracted/extended dew capResolution:        1.78 arc secondsLimiting visual stellar magnitude:             11m6Diameter of the dew cap:           88 mm (for solar filter)This focuser combines the advantages of a rack & pinion focuser with an improved bearing system. A Crayford design has its optimal stiffness only when the drive shaft is pressed firmly against the rail – this causes bucky operation. The finely machined cograil allows smooth focusing even under heavy loads up to 3 kg. The focuser also features a 2″ and 1.25″ receptacle with brass compression rings. 2″ accessory is locked by two thumbscrews – this prevents tilting.

Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Munich – Germany

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