William Optics FLT120 - 120 mm f/6.5 FluoroStar APO Refractor - Red
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Limited Time Offer: Free Guide Star 61 with Purchase!
Limited Time Offer: Free Guide Star 61 with Purchase!
Special Note About the Color of the Free Guide Star 61: The free William Optics Guide Star 61 comes in gold or blue. While William Optics will do their best to color match, the color may vary based on availability.
William Optics FLT120 - 120 mm f/6.5 APO Triplet Refractor - Red
The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. Using three elements made of high-end fully coated glass like FPL-53 virtually removes chromatic aberration and produces images that are sharp and full of contrast. A patented light weight Bahtinov mask is included to provide assistance in focusing, or you can remove it when using the F120 visually.
The FLT120 has a native focal ratio of f/6.5 and a focal length of 780 mm. The big 3.3" rack and pinion dual-speed focuser allows for use of two optional M92 flatteners from William Optics; the FLAT68III, which flattens the field beautifully without focal reduction, or the FLAT7A, an APO flattener and 0.8X reducer. While the FLAT68III is recommended for the best image quality of the two, the FLAT7A reduces the focal ratio from f/6.5 to f/5.2. Both flatteners accept 2" threaded filters.
As with other William Optics refractors, the fit and finish on the FluoroStar 120 is superb. The telescope comes with cradle style mounting, a saddle handle bar, and a universal Losmandy-style dovetail plate. All four pieces are anodized in red. The included camera rotator and the Rotolock 2" Adapter are anodized to match. This is one beautiful telescope. By the way, the top of the handle bar has a Vixen-style saddle built in to accept William Optics slide base guide rings for a guide scope or finder. You can also use an accessory mounted on a Vixen dovetail.
William Optics FLT120 Specifications
- Aperture: 120 mm
- Focal Length: 780 mm/li>
- Focal Ratio: f/6.5/li>
- Focuser: 3.3" Rack & Pinion, Dual Speed, 360-degree Rotator/li>
- Image Circle : > Full Frame/li>
- Camera Format Compatible: APS-C, Full Frame/li>
- Tube Length Retracted: 680 mm/li>
- Tube Length Extended: 850 mm/li>
- Tube Weight: 15.87 lb or 7.2 kg
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SKU Number
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WYO-A-F120RD-RP33 |
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MPN
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A-F120RD-RP33 |
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Telescope Series
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William Optics FLT |
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Focal Ratio
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f/6.5 |
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Optical Design
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Refractor |
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Telescope Aperture
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120mm (4.72") |
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Telescope Mount Type
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No Mount - OTA Only |
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Type of Electronics
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OTA Only - No Electronics |
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Number of Refractor Elements
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3 (Triplet) |
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Focal Length (mm)
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780 mm |
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Optical Coatings
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SMT |
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Focuser Style
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Rack & Pinion |
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Focuser Size
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3.3" |
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Focuser Speed
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Dual Speed |
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Telescope OTA Weight (lb.)
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15.87 |
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Refractor OTA Length - Extended (in.)
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850 mm |
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Refractor OTA Length - Retracted (in.)
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680 mm |
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Warranty
Warranty
Manufacturer's warranty period, if known. Customers should communicate directly with the manufacturer regarding details of their warranty, as warranties have a tendency to change without notice.
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William Optics - 2 Years |
- Fluorostar 120 f/6.5 APO refractor OTA with 3.3" R&P Focuser - Red
- Bahtinov Mask
- Lens Cover
- Micro Focus Cover
- 3.3" to 2" RotoLock
- 2" Rotolock Adapter Plug
- 2" to 1.25" Eyepiece Adapter
- 1.25" Eyepiece Adapter Plug
- Mounting Rings
- Saddle Handle Bar
- Losmandy Universal Plate
Recommended Accessories
William Optics Flattener 68III
If you'd like to flatten the field when doing photography through the FLT 120, this field flattener will do the trick. It has adjustable back focus, accepts 2” filters, and presents M48 threads on the camera side and M92 threads on the scope side. The APO design & Ohara glass produce amazing results.
William Optics 0.8x Reducer/Flattener
If you want to reduce the effective focal length of the FLT 120 while also flattening the field, check out this adjustable 0.8X reducer/flattener. The triplet APO optics are made with Ohara glass for beautiful results. It is designed with full frame cameras in mind, and has M92 threads on the telescope side to fit the FLT 120. You provide the appropriate T-ring or adapter to mount your DSLR or camera.
Apertura 2" Twist Lock Carbon Dielectric Mirror Di...
Upgrading your telescope with a 2” diagonal allows you to use a wide range of 2” eyepieces and other barreled accessories. This diagonal has a carbon fiber body and dielectric coatings. It threads onto the rear cell of the telescope and comes with a 2” to 1.25” adapter so you can use 1.25" eyepieces in the diagonal as well.
Apertura Super Wide Angle 10 mm 70° 1.25" ...
This 10 mm Super Wide Angle eyepiece will produce 78X magnification when used in the 120 mm FLT. If you also pick up a 2X Barlow, you’d be able to double the magnification of the 10 mm to 156X.
William Optics Red Dot Finder Kit with Vixen Style...
Make locating objects easier by mounting this sturdy red dot finder to the FLT120. Because the William Optics RDF offers a choice of reticles, you can match them to the type of object you're viewing and then adjust the brightness to allow you to easily center the object in the finder’s reticle.
Apertura M48 Canon EOS T-Ring
Attach your Canon EOS DSLR to the M48 threads on the back of the FLT 120 or optional flattener with this T-ring. M48 T rings for other camera brands are also available.
Apertura Nikon F Ultimate T-Ring
Attach your Nikon DSLR to the rear of the FLT 120 or optional flattener with this M48 T-ring.
