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TAKAHASHI
The FSQ-85EDX is a more mobile version of the FSQ-406EDX4 for lovers of wide-field deep sky imaging.
Available Upon Request
This category includes products which are not kept in stock and for some reasons -which don’t depend on our company- can’t be available in less than 14 days. Specifically, this category includes new products thar are pre-advertised by manufacturers, however they are not available in Greece yet. You can pre-order these items with a special preferential price. If the estimated arrival date of this product is already known, then the estimated date will be written above the indication “AVAILABLE UPON REQUEST”.
FSQ-85EDX (OTA) WITH 50.8/31.75 ADAPTER
The FSQ-85EDX is a more mobile version of the FSQ-406EDX4 for lovers of wide-field deep sky imaging.
Like its predecessor, it is based on an apochromatic Petzval quadruplet formula including ED glass. With a focal length of 450 mm and a flat field covering 5.6 degrees over the sky, this refractor is ideal for photography. It is delivered with a 1.01X corrector to make the most of recent sensors with smaller and smaller pixels. The image circle is 44 mm.
The rack-and-pinion focuser is deliberately oversized to improve accuracy and efficiency. It is controlled by a double system of 1/7 ratio wheels and equipped with a CAA (Camera Angle Adjuster) for photographic framing. The retractable dew shield saves space.
A focal reducer is available as an option to transform the telescope into a true high-end 328 mm astronomical telephoto lens, open at 3.9, with a 7 degree field of view on the sky and a 40 mm image circle!
| Net Weight (g) | 3600 |
|---|---|
| Optical design | Apochromatic Refractor |
| Aperture (mm) | 85 |
| Focal length - F (mm) | 450 |
| Focal ratio (f/) | 5.3 |
| Mount | Not included |
| Maximum useful magnification (x) | 170 |
In the box:
| Characteristic | Takahashi FSQ-85EDX refractor |
| Objective | Petzval Quadruplet with ED glass |
| Lens cell | Highly air-spaced quadruplet. 4 lenses/4 groups. 2 x S-FPL53 ED lenses |
| Coatings | Hard multicoatings |
| Length of the optical tube | 623 mm (535 mm with retracted dew shield) |
| Diameter of the optical tube | 95 mm |
| Diameter of the dew shield | 114 mm |
| Focuser | Rack-and-pinion with 1/7 microfocuser |
| At prime focus | |
| Focal length | 450 mm |
| Focal ratio | F/5.3 |
| Metal Back Distance | 197.5 mm |
| With 1.01X field corrector | |
| Focal length | 455 mm |
| Focal ratio | F/5.4 |
| Image circle diameter | 44 mm |
| Metal Back Distance | 56.2 mm |
| With RD QE0.73X focal reducer | |
| Focal length | 327 mm |
| Focal ratio | F/3.8 |
| Image circle diameter | 44 mm |
| Metal Back Distance | 72.2 mm |
| With EX ED1.5X focal extender | |
| Focal length | 680 mm |
| Focal ratio | F/8 |
| Image circle diameter | 44 mm |
| Metal Back Distance | 117.5 mm |
Spot-diagram of Takahashi FSQ-85EDX refractor with 1.01X field corrector
Spot-diagram of Takahashi FSQ-85EDX refractor with RD QE0.73X focal reducer
Spot-diagram of Takahashi FSQ-85EDX refractor with EX ED1.5X focal extender
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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