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  • TS-Optics rifrattore apocromatico ED50mm f/6,6 TS-Optics rifrattore apocromatico ED50mm f/6,6

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TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor

Product code: TSAPO81Q

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Quick Overview

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor is fast 80mm diameter and 352mm focal lenght f/4.4 refractor with large flat field. This telescope has a 6 lens design composed by an air-spaced FPL53 triplet lens for an image free from chromatic aberrations and 3-element corrector for a very good field correction. Newly designed dual-speed 2.5" R&P focuser with high load capacity, long backfocus of 68 mm from the M48 thread on the focuser, to directly screw imaging accessories without flexures. Designed for astrophotography, not suitable for visual use.

Availability: Order

Order €1,309.00
22% tax incl
if you pay by bank transfer €1,269.73

Details

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor - main specifications:

- 80 mm aperture - fast f/4.4
- FPL-53 triplet objective from Ohara (Japan) for an image free of chromatic aberration
- Newly designed dual-speed (10:1) 2.5" R&P focuser for directly screwed-in connection of the camera
- Well corrected and illuminated image field with 42 mm diameter
- 360° rotation for optimal positioning of the object on the camera sensor
- CNC tube rings for optimal mounting
- Stable aluminum case for transport and storage with space for accessories
- Retractable dew cap - transportation length only 400 mm

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor - photography use:

The camera is connected via the M48x0.75 thread (male). The distance of the M48 thread to the camera sensor is exactly 68 mm, so you have enough space for custom adaptions and for all commercially available cameras.

It is a technical challenge to construct an apo with 80 mm aperture and this extreme speed of f/4.4 and additionally to offer an image field of 42 mm diameter to the astrophotographer. Because of fast focal ratio, the focuser tube has no normal locking screws, since they can cause a slight tilting of the connected camera which distorts the stars at the edges. Conclusion: only a completely threaded connection makes sense. For achieving an even better field correction, this telescope has a tilting device at the end of the focuser, so you can achieve the best field correction. Minimal tilting, also of the camera sensor, already affect the image of this extreme telescope. With the three draw bolts and the three pressure bolts at the end of the telescope, you can achieve a custom fine adjustment for a really outstanding sharpness from one side of the sensor to the other.

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor - scope of delivery:

- Optical tube assembly with focuser
- Front and rear cover
- Support rings
- Hard case

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor

TS-Optics Imaging Star 80mm f/4.4 apochromatic refractor with EAGLE installed in parallel thanks to 90mm PLUS support rings. On top of the EAGLE is installed the 60mm CompactGuide scope with PLUS guide rings and on the focuser there's SESTO SENSO, the robotic focusing motor for focusers, by adding the 33mm adapter for SESTO SENSO.

Technical specifications

Optical Design Apochromat
Optics Apocromatico a 6 elementi (tripletto anteriore + spianatore posteriore a 3 elementi)
Diameter (mm) 80mm
Tube diameter 90mm
Focal Length (mm) 352mm
Focal Ratio f/4.4
Field flattener/corrector Included and not removable
Optical Tube Alluminio
Obstruction No
Focuser 2,5" pignone e cremagliera, micrometrico
Eyepiece holder No
Weight 3,5 Kg
Hard/soft case Hard case

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