Takahashi FSQ-106EDXIII F5 Astrograph Telescope - Imaging Edition
Introducing the Takahashi FSQ-106! The last rendition, the FSQ106N, has long been regarded as one of the finest refractors available for film and CCD imaging. Wide field, large image circle, excellent color correction and a flat field were just some of the notable points of the previous FSQ106N.
Now, enter the Takahashi FSQ106ED F5 Astrograph Telescope...
The new Takahashi FSQ106ED telescope has made some significant improvements over its predecessor. Let's start with a significantly longer backfocus at 178mm to accommodate most CCD systems. Many CCD imagers have additional equipment in the light path such as filter wheels, adaptive optics, temperature control focusers and other accessories which take up precious focus travel. Thanks to a new design, the FSQ106ED provides the additional backfocus to accommodate most CCD equipment and even allows the use of binoviewers!
The Takahashi FSQ-106ED telescope comes equipped with a newly designed heavy-duty 4" focuser with a built in camera angle adjuster. Designed for all applications in mind, the focuser will lift up to 5kg, or 11lbs, and keep it there without slipping. Do you need to make precision adjustments in focus? No problem. Takahashi has thought of that, too... And that's why they've included a micro-edge fine focuser with a 10 to 1 ratio. Combine that with both 2" and 1.25" eyepiece adapters and you're ready for any application.
But, improvements haven't stopped there. Takahashi has redesigned the optical system in the Takahashi FSQ106ED F5 Astrograph Telescope to a modified four element double ED Petzval system . By adding a second doublet inside the tube, the optical wavefront can be optimized to remove any astigmatism - this in turn acts as a field flattener. The Takahashi FSQ106ED F5 Astrograph Telescope optical system is incredible for imaging - providing wide, flat fields, high contrast and no lateral color, yet it is also capable of outstanding visual work. Use the optional F3.6 (wow!) focal reducer for imaging applications and the optional Extender-Q for visual use at F8. What's more, at prime focus you get 88mm of image circle which takes in a full 9.5° of sky. Now, that's an image....
Do you need more? Then think on this... Another improvement on the new Takahashi FSQ106ED is the enhanced portability from the new, retractable, self-storing dew shield design. The Takahashi FSQ106ED is now airline portable at only 16.7" long when the dew shield is collapsed and stays in a tidy package by measuring in at a total length of only 20.5" when fully extended. Inside the all aluminum tube, you'll find knife-edge baffles block off axis light and provide maximum contrast. Outside you'll find the perfect fit and finish with its rich ivory color and ebony trim. The focuser and the aluminum castings will continue to be made one at a time for consistent, optimal quality. That's a Takahashi quality guarantee.
Takahashi - FSQ106ED F5 Astrograph Telescope - Imaging Edition Features...
- Image Circle with Optional Reducer: 1.7" (44mm) - light intensity 60%
- Image Circle with Optional Extender: 1.7" (44mm) - light intensity 60%
- Focal Length with Optional Reducer: 15.2'" (385mm)
- Focal Length with Optional Extender: 33.5" (850mm)
- F Ratio with Optional Extender: 8
- F Ratio with Optional Reducer: 3.6
- Light Gathering Power: 229X, Limiting Mag is 11.9, Resolution: 1.09" (28mm)
- Effective Aperture: 4.2" (106mm) - Focal Length: 21" (530mm)
Important Note: Takahashi America requires that their telescope optical tube assemblies be shipped via 2nd Day Air or faster in order for the full warranty to be in force. Please make sure you choose the appropriate shipping method in your shopping cart or, if you speak to an OPT associate, request 2nd Day Air or faster. If you are purchasing a telescope and mount package or any accessories to accompany an OTA, please contact OPT for a shipping quote, since only the OTA is required to ship second day air but all other products can be shipped separately via any other available shipping method. Thank you!
|Telescope Series||Takahashi FSQ|
|Optical Design||Refractor - Apochromatic|
|Mount Type||None - Optical Tube Only|
|Warranty||5 Year Warranty|
|Telescope Focal Length||530mm|
|Telescope Focal Ratio||f/5|
|Image Across Field||9.5º|
|Optical Coatings||Fully Multi-Coated|
|Limiting Stellar Magnitude||12.5|
|Highest Useful Magnification||229x|
|Optical Tube Outer Diameter||125mm|
|Length of Optical Tube||16.7"|
|Optical Tube Weight||15 lbs.|
|Tube Color or Finish||Gloss White|
|Diagonal Included?||No - Sold Separately|
|Dew Shield Included?||Yes|
|Dew Shield Outside Diameter||Not provided by manufacturer|
|OTA Mount Type||N/A|
|Power Adapter Included||None - Does Not Require Power|
|Objects in Database||N/A|
|Hand Controller Included?||No|
|Total Telescope Weight||15 lbs.|
|Tripod Type Included||None, Sold Separately|
- Takahashi FSQ-106EDXIII F5 Astrograph Imaging Edition Telescope OTA
- 4" Rack and Pinion Focuser
- 10:1 Micro-Focuser
- Dust Caps
- Retractable Dew Shield
- Camera Angle Adjuster
Hi, I would like to know if I can get to focus by using this FSQ106 and his reducer to 3,6 with qhy9 plus related filter wheel....or should I will have back focus problems? Many thanks Best regards
Question by: logan1970 on Dec 31, 2014 9:01:46 PM
The back focus of the QHY9 with filter wheel is 35mm (minus 1/3 of filter thickness for refraction, so usually 34.0-34.6mm depending on brand of filter). The nominal backfocus on the Reducer QE 0.73x for the FSQ-106ED is 72.2 mm, with a tolerance of +/- 1 mm. You will need adapters to make up the rest of the distance, but it can be done. Please call or e-mail us with questions about adapter solutions.
Answer by: Chris (Admin) on Jan 8, 2015 9:08:13 AM
Hi, I purchased an FSQ106edxIII (? - camera angle ring at the rear) with reducer QE 0.73 from you several years ago, only just got round to installing the reducer. I cannot seem to achieve focus with a DSLR camera (not sufficiently close) any solution?)
Question by: malcolm20 on Jan 22, 2015 12:26:03 AM
The 0.73x Reducer QE was designed for the FSQ-106ED without the Camera Angle Adjuster (CAA) attached. Using the CAA on the EDX-III version makes the setup around 38mm too long normally for the Reducer QE to focus, so Takahashi came out with a negative length coupling (part# TK-TRDC0106) that seats the reducer inside the CAA so that proper focus can be achieved. This adapter can be found on our website at this link: http://www.optcorp.com/tk-trdc0106-trdc0106-reducer-coupling-for-fsq-106ed-camera-angle-a.html.
Answer by: Chris (Admin) on Jan 22, 2015 7:46:18 AM