PrimaLuceLab PLUS 95 mm Support Clamps
PrimaLuce PLUS 95 mm clamps: an alternative to the Takahashi clamp, with an offset plate already included. Check the number of clamps, the clearance, and the balance.
CHF 199.00
Takahashi FSQ-85EDX telescope with an 85 mm ED quadruplet for wide-field imaging, featuring a 1.01× corrector and 1/7 focus ratio. Package includes a 6×30 finder scope, mount, and offset plate collar.
CHF 3'428.00incl. Swiss VAT
Reference TQE08540
Will be ordered for you
Delivery time: 5 to 7 business days
Estimated shipping: Between November 23 and 24, 2026
The Takahashi FSQ-85EDX is designed for wide-field imaging. Its 85 mm Petzval objective combines four lenses, including two made of S-FPL53 ED glass, and offers a native focal length of 450 mm at an F/D ratio of 5.3. This optical design produces a flat field suitable for astrophotography.
The corrector supplied with the telescope is designed for use with small-pixel sensors. With this component, the focal length reaches 455 mm at F/D 5.4, and the corrected image circle measures 44 mm. The working distance indicated on the back of the corrector is 56.2 mm; adapter rings should be selected according to the Takahashi system and your camera’s flange focal distance.
The rack has a 1:7 gear ratio for fine-tuning the focus. The included CAA rotating collar allows you to adjust the camera’s framing. The retractable dew shield reduces the tube length from 623 to 535 mm for easier storage and transport.
The guide makes aiming easier, and the clamp with a plate secures the tube to an interface designed for your mount.
Takahashi FSQ-85EDX Overview and Documentation
The Takahashi FSQ-85EDX is a Petzval quadruplet refractor with two S-FPL53 lenses, each with an 85 mm aperture and a focal length of 450 mm (f/5.3), designed primarily for deep-sky astrophotography. Its focal length is ideal for observing large nebulae such as the North America Nebula, the Rosette Nebula, and the Heart and Soul Nebula, as well as the entire Andromeda Galaxy and the Pleiades with their nebular structures. With a fast f/5.3 aperture, it allows for reasonable exposure times even when using narrow-band filters.
With an APS-C camera featuring 3.76 µm pixels (Sony IMX571 sensor), you get approximately 1.72″ per pixel for a field of view of 3° × 2°. With the 0.73× crop factor, this increases to 2.36″ per pixel and a field of view of 4.1° × 2.7°. The 44 mm image circle covers full-frame sensors (24 × 36 mm): a full-frame mirrorless camera will also work.
No, the 1.01× corrector is included: it extends the focal length to 455 mm at f/5.4 with a corrected image circle of 44 mm. The optional 0.73× reducer offers an alternative focal length of 330 mm at f/3.9.
56.2 mm. This length is measured from the thread to the sensor, including the rings, filter wheel, and shutter: adhering to this measurement down to the millimeter ensures that the stars remain round in the corners.
Yes, as a bonus: with an angled mirror and an eyepiece, it provides high-contrast images without false colors of the Moon, the planets, and double stars.
Here are a few accessories we've selected for this model, depending on your needs.
PrimaLuce PLUS 95 mm clamps: an alternative to the Takahashi clamp, with an offset plate already included. Check the number of clamps, the clearance, and the balance.
QB0.73× reducer for photography at shorter focal lengths, as an alternative to the included 1.01× corrector. Check the connections and focus according to the Takahashi diagram.
1.5× ED Extender for FSQ-85EDX: 680 mm at f/8. Check the assembly according to the Takahashi diagram, and do not place a filter at the eyepiece end of the extender.
100 mm heating strip for a 114 mm defogger. Check its location and clearance; a 12 V power supply or controller with an RCA connector and sufficient power must be provided separately.
Motorized eyepiece holder to replace the original one. You will need the FSQ85 adapter (PL3600271) and the appropriate camera connectors; the PrimaLuce configuration also uses the M81-to-M72 female adapter (PL3600252). Check the travel, focus adjustment, and focus range.
Motor on the original eyepiece holder; an alternative to the ESATTO, which replaces it. Check the axis, the sleeve, the clearance, and the power supply before installation.
125 mm motorized flat panel for a 114 mm anti-fog screen. Check the mounting, alignment, travel, cables, and ensure the control unit is compatible with your system.
Recommended diameter: 150 mm. Check the measurement and the mounting.
