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Takahashi FSQ-106ED Petzval Quadruplet Astrograph only OTA version

Takahashi FSQ-106ED Petzval Quadruplet Astrograph only OTA version

The astrophotographers see in the FSQ-106ED one of the best astrographes available for the amateur astronomers.

OTA version includes MEF-3 and Camera Angle Adjuster integrated in focuser base. Cradle, 7x50 finder and finder bracket not included.

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Takahashi FSQ-106ED Petzval Quadruplet Astrograph only OTA version

Takahashi

TK-TQE10610

New product

The astrophotographers see in the FSQ-106ED one of the best astrographes available for the amateur astronomers.

OTA version includes MEF-3 and Camera Angle Adjuster integrated in focuser base. Cradle, 7x50 finder and finder bracket not included.

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5 795,00 €

Ordered upon request

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Takahashi FSQ-106ED Petzval Quadruplet Astrograph only OTA version

OTA version includes MEF-3 and Camera Angle Adjuster integrated in focuser base. Cradle, 7x50 finder and finder bracket not included.

The astrophotographers see in the FSQ-106ED one of the best astrographes available for the amateur astronomers. With its focal length of 530mm, an image circle of 88mm and a photographic field of 9,5°, it acts as teleobjective for most powerful CCD and DSR/DSLR cameras of the market.

Based on a Petzval quadruplet optical design with apochromatic ED glasses, the FSQ-106ED is optimized for wide-field imaging of the deep sky. It offers a flat field, and comes equiped with a built-in camera angle adjuster and an oversized rack-and-pinion focuser. To minimize the size of the optical tube, it includes a retractable dewshield and an important backfocus.

The modified Petzval design of the FSQ-106ED, with the field flattener integrated inside the tube, makes it possible to cover all the photographic formats, from 35mm SLR/DSLR to 6x7 cameras. Its photographic image circle of 88mm of diameter (field of 9,5°) does not have an equivalent on the market of the refractors of 100mm of aperture. CCD users will be able to dream with the use of large sensors without risk of vignetting or loss of definition in edge of field. As it is the tradition inside Takahashi company, the objective is entirely collimatable in order to compensate for the possible mechanical and thermal stresses. A perfect image is at this price.

Optics of exception goes of course with mechanics of exception. To replace the traditional camera angle adjuster, Takahashi integrated an oversized rotative rack-and-pinion focuser in the design of its optical tube. This device offers a perfect rigidity to all the types of photographic assembly, even the heaviest. Voluntarily limited, the rack-and-pinion course is controlled by a double system of focusing including a 1/7 microfocuser.
The optical tube assembly is equipped with a retractable dew shield, to gain in volume.

Resolutely directed towards astrophotography, the FSQ-106ED has very many accessory assemblies including visual ones. It has a 186 mm backfocus, which will charm the most demanding users. For examples of assembly, please see system-charts.
Even though this refractor is compact, it is quite heavy (125mm of diameter for a weight of 7 kg). Association with the EM-200 equatorial mount is ideal, including with a guidance system TGM in parallel. Many hardware configurations are available to optimize this astrograph and to turn the astrophotography of the deep sky into a moment of pleasure.

Features

Spec.FSQ-106ED
Optical designModified Petzval quadruplet apochromat
Aperture106 mm
Standard
Focal length530 mm
Focal ratioF/5.0
Resolution1.09"
Limiting magnitude11.8
Light grasp220x
Image circle88 mm
Photo field9.5°
Back focus186.38 mm
Metal back178 mm
With Extender-Q 1.6x
Focal length850mm
Focal ratioF/8
Image circle44 mm
Photo field
Metal back117.5 mm
With QE-Reducer
Focal length385mm
Focal ratioF/3.6
Image circle44mm
Photo field6.5°
Metal back72.2 mm

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