Takahashi TSA-120 F/7.5 Triplet Apo Refractor Telescope
The TSA-120 is equipped with an air-spaced ED triplet apochromatic lens with 120 mm diameter (900 mm focal length and F/D 7.5), mounted in a 3-element barrel. The latter ensures good stability of the optomechanical chain in the face of usual transport constraints and significant variations in operating temperature. It has a retractable dew shield and the length of the tube does not exceed 990 mm for a moderate weight of 6.7 kg.
The lens has been designed to achieve a very high level of performance in observation and photography. The chromatic aberration in short wavelengths (blue and violet) is reduced by one third compared to the old FS-102/FS-128 with Fluorite lens. The Strehl ratio at optimal wavelengths of human vision is almost perfect, at 99.2%, equivalent to that of the TOA series.
The TSA-120 is therefore a lightweight, compact and economical refractor, whose performance is similar to that of the TOA, Takahashi's flagship models and recognized as among the best in the world.
The addition of the optional field corrector allows native focus imaging. The TOA-35 reducer (F/5.25) makes it more comfortable in deep sky photography. All assemblies meet the rigidity and flexibility requirements of new imaging devices, such as digital cameras and the latest generation of CCD cameras.
Specifications: Takahashi TSA-120 F/7.5 Triplet Apo Refractor Telescope
Characteristic
- Optical design: ED Triplet Super Apochromat
- Lens cell: Air-spaced triplet. 3 lenses/3 groups. 1 S-FPL53 ED lens in the centre
- Coatings: Hard multicoatings
- Diameter: 120 mm
- Length of the optical tube: 990 mm (870 mm with retracted dew shield)
- Diameter of the optical tube: 125 mm
- Diameter of the dew shield: 160 mm
- Weight: 6.7 kg
- Focuser: Rack-and-pinion
At prime focus
- Focal length: 900 mm
- Focal ratio: F/7.5
- Metal back distance: 227.5 mm
With TOA-35FL field corrector
- Focal length: 882 mm
- Focal ratio: F/7.3
- Image circle diameter: 40 mm
- Metal back distance: 117.5 mm
With TOA-35RD focal reducer
- Focal length: 672 mm
- Focal ratio: F/5.6
- Image circle diameter: 40 mm
- Metal back distance: 62.5 mm
With EXT-ED1.5X focal extender
- Focal length: 1350 mm
- Focal ratio: F/11.3
- Image circle diameter: 44 mm
- Metal back distance: 117.5 mm
At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.
For delivery within Mainland UK, we use reputable couriers to provide efficient service. You can expect your package to arrive in 1-2 working days. Please note that a signature may be required upon delivery to ensure a secure receipt.
In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.
Should there be any delay in dispatching your order, we will notify you to keep you informed.
Please be aware that The Widescreen Centre cannot be held responsible for any postal or third-party delays that may occur. We are committed to providing a reliable and efficient delivery service for our valued customers.
For more information please click here
