William Optics FLT 120 Fluorostar 120mm f/6.5 Triplet Apo Refractor with Carry Case - Available in 3 Colors

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Get a FREE William Optics GS61 Guidescope (a $438 value) while supplies last! Note that color of guidescope is specified above and may differ from the trim color of the telescope. If the guidescope is backordered, your telescope and free item will ship only when all items are back in stock.
Optical Performance
The Fluorostar 120 is a Three Element Designed APO refractor. Using FPL-53 glass this telescope provides excellent aberration correction.
Details and Features
- Saddle handle bar: Newly designed. Made with CNC anodizing. Suitable for William Optics uniguide and all of Vixen type finder bases.
- R&P33 Focuser: Our 3.3 R&P focuser is smooth, stable, and reliable. No image shifting. Suitable for William Optics 3" corrector.
- Bahtinov Mask: Our patented Bahtinov Mask is made with special material that is three times lighter than the traditional type.
- Mounting Ring and Losmandy Plate: Made by CNC with anodzing. Losmandy type mounting plate is included in the standard package.
Specifications:
- Optical Design: FPL-53 Triplet Refractor
- Focal Length: 780mm
- Diameter: 120mm
- Aperture: f/6.5
- Focuser: WO R&P 3.3"
- Image Circle: >Full Frame (with recommended flatteners; image circle size without a flattener will be smaller but has not been specified by William Optics)
- Tube Length (Fully Retracted): 680mm
- Tube Length (Fully Extended): 850mm
- Dew shield OD: 156mm / 6.14"
- Tube Weight: 7.2kg
- Camera Format: APS-C, Full Frame
- Interchangeable T-Mounts (sold separately): Canon EF, Nikon F, Sony E, Pentax, Micro Four Thirds, Fuji FX
- Recommended Flatteners:
- FLAT68III
- FLAT7A (requires additional adapter that is sold separately)
Other Information
- Country of Manufacture: Taiwan
Optical Performance
The Fluorostar 120 is a Three Element Designed APO refractor. Using FPL-53 glass this telescope provides excellent aberration correction.
Details and Features
- Saddle handle bar: Newly designed. Made with CNC anodizing. Suitable for William Optics uniguide and all of Vixen type finder bases.
- R&P33 Focuser: Our 3.3 R&P focuser is smooth, stable, and reliable. No image shifting. Suitable for William Optics 3" corrector.
- Bahtinov Mask: Our patented Bahtinov Mask is made with special material that is three times lighter than the traditional type.
- Mounting Ring and Losmandy Plate: Made by CNC with anodzing. Losmandy type mounting plate is included in the standard package.
Specifications:
- Optical Design: FPL-53 Triplet Refractor
- Focal Length: 780mm
- Diameter: 120mm
- Aperture: f/6.5
- Focuser: WO R&P 3.3"
- Image Circle: >Full Frame (with recommended flatteners; image circle size without a flattener will be smaller but has not been specified by William Optics)
- Tube Length (Fully Retracted): 680mm
- Tube Length (Fully Extended): 850mm
- Dew shield OD: 156mm / 6.14"
- Tube Weight: 7.2kg
- Camera Format: APS-C, Full Frame
- Interchangeable T-Mounts (sold separately): Canon EF, Nikon F, Sony E, Pentax, Micro Four Thirds, Fuji FX
- Recommended Flatteners:
- FLAT68III
- FLAT7A (requires additional adapter that is sold separately)
| Manufacturer | William Optics |
|---|---|
| Telescope Focal Length | 701 - 800mm |
The standard package includes:
- Fluorostar 120
- Mounting Rings
- Handle bar
- Losmandy Plate
- Soft Carry Bag
Get a FREE William Optics GS61 Guidescope (a $438 value) while supplies last! Note that color of guidescope is specified above and may differ from the trim color of the telescope. If the guidescope is backordered, your telescope and free item will ship only when all items are back in stock.
Optical Performance
The Fluorostar 120 is a Three Element Designed APO refractor. Using FPL-53 glass this telescope provides excellent aberration correction.
Details and Features
- Saddle handle bar: Newly designed. Made with CNC anodizing. Suitable for William Optics uniguide and all of Vixen type finder bases.
- R&P33 Focuser: Our 3.3 R&P focuser is smooth, stable, and reliable. No image shifting. Suitable for William Optics 3" corrector.
- Bahtinov Mask: Our patented Bahtinov Mask is made with special material that is three times lighter than the traditional type.
- Mounting Ring and Losmandy Plate: Made by CNC with anodzing. Losmandy type mounting plate is included in the standard package.
Specifications:
- Optical Design: FPL-53 Triplet Refractor
- Focal Length: 780mm
- Diameter: 120mm
- Aperture: f/6.5
- Focuser: WO R&P 3.3"
- Image Circle: >Full Frame (with recommended flatteners; image circle size without a flattener will be smaller but has not been specified by William Optics)
- Tube Length (Fully Retracted): 680mm
- Tube Length (Fully Extended): 850mm
- Dew shield OD: 156mm / 6.14"
- Tube Weight: 7.2kg
- Camera Format: APS-C, Full Frame
- Interchangeable T-Mounts (sold separately): Canon EF, Nikon F, Sony E, Pentax, Micro Four Thirds, Fuji FX
- Recommended Flatteners:
- FLAT68III
- FLAT7A (requires additional adapter that is sold separately)
Other Information
- Country of Manufacture: Taiwan
| Manufacturer | William Optics |
|---|---|
| Telescope Focal Length | 701 - 800mm |
The standard package includes:
- Fluorostar 120
- Mounting Rings
- Handle bar
- Losmandy Plate
- Soft Carry Bag

William Optics FLT 120 Fluorostar 120mm f/6.5 Triplet Apo Refractor with Carry Case - Available in 3 Colors
