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Teleskop Service

TS-Optics PHOTOLINE 152 mm f/8 Triplet APO - 3,7" RPA focuser

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3 395,00 € 3395 EUR 2021-04-06

-604,00 €

3 999,00 €

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SCONTO 604,00 €

Codice articolo: TSAPO152F8

TS 8" f/8 Photoline Triplet APO refractor with airgap and 3,7" Deluxe focuser with chromatic aberration-free image - comparable to FPL-53 Triplet objectives
♦ Aperture 152 mm

♦ Focal length 1216 mm

♦ Focal ratio f/8

♦ Triplet objective with airgap - image free of chromatic aberration due to FK61 and Lanthan Apo Element - color correction comparable with FPL-53 Triplet Design

♦ Multi-coating on each glas-air gap for maximum light transmission

♦ Temperature-compensated cell with collimation capability

♦ 3,7" RPA focuser with ball-bearings and rack & pinion mechanism

♦ Flexible backfocus up to 210mm due to removeable extension part between tube and focuser

♦ Correctors and focal length reducers for astrophotography are available optionally

♦ The dew cap is retractable

♦ Quickly temperature-adapting Aluminium tube

♦ CNC tube rings, flexible handle, Losmandy-Level dovetail and finder-scope shoe are included

  TS-Optics PHOTOLINE 152 mm f/8 Triplet APO - 3,7" RPA focuser [EN]

TS-Optics PHOTOLINE 152mm f/8 Triplet APO Refractor
With the PHOTOLINE APO series Teleskop-Service focuses on uncompromising optical and mechanical quality. This 152mm f/8 APO is equipped with on of the best objectives in its class. The Triplet-objective offers a color-defect free image up to very highest magnification factor due to two APO elements (FK61 and LANTHAN). The lenses are mounted in temperature-compensated cells. The well dimensioned 3,7" focuser with micro-gear reduction and integrated 50mm extension allows the adaptation of all customary correctors and reducers for astrophotography.

  TS-Optics PHOTOLINE 152 mm f/8 Triplet APO - 3,7" RPA focuser [EN]

Range of application of the PHOTOLINE 8" f/8 Apo:
This Apo is particularly versatile with very good performance in each discipline, for example:

♦ Astrophotography:The chromatic aberration-free image of the Triplet objective provides clear and fine stars without blue fringing. Even bright stars appear clear and defined. Due to the 3,7" TS-Optics RPA focusers all customary correctors and reducers can be adapted via the connection thread; as a result Astro-cameras with very large sensors can be used.

♦ Visual observation:The moderate f-ratio of f/8 provides all options for astronomical observation. With high focal-length 2" eyepieces for example you achieve a field of view of roughly 2,5° on the sky, which equals 5x full moons next to each other, giving you a true Rich-field refractor. At a magnification of 450x you can enjoy a contrast-rich image, as can only be achieved by a apochromatic refractor. Every Apo can be used for planetary observation, in most cases the earth´s atmosphere limits the image resolution.

  TS-Optics PHOTOLINE 152 mm f/8 Triplet APO - 3,7" RPA focuser [EN]

The PHOTOLINE 152mm f/8 Triplet APO´s optics:
We have made it our goal to present a true alternative to the popular FPL-53 Triplet objectives. The color correction is significantly better compared to 2-element APO- and ED objectives. We have achieved this goal with this objective. Combinining the two ED glas-types FK-61 and Lanthan with a third partner glas allows the reduction of chromatic aberration to a minimum. Even ambitioned amateur astronomiers will excited about the clear and contrast-rich image this telescope provides. The multi-coated objective is mounted within a temperature-compensated cell.

  TS-Optics PHOTOLINE 152 mm f/8 Triplet APO - 3,7" RPA focuser [EN]

The 3,7" RPA focuser
One of the telescope´s highlights is its 3.7" focuser with its Rack & Pinion adjustment mechanism. The focuser´s quality is very similar to the famour Feather-Touch focusers by Starlight Instruments. The large dimensioned focuser also allows the use of full-format and large-format cameras without vignetting, given the right corrector.

♦ Adjustment via rack gearing - no friction - no unintended shifting as with Crayford focusers.
♦ Interior baffles against reflexes
♦ Free diameter: 102 mm
♦ Adjustment range of focuser tube: 98 mm
♦ 360°-rotation for optimal choice of your FOV
♦ Self-centering 2"- and 1,25"-adapter for correct clamping on the optical axis.
♦ Connection-thread for photographic adaptations: M100x1 female thread, M92x1 female thread, M68x1 ZEISS Level female thread
♦ Extreme backfocus up to 210 mm possible, which allows for the use of bino-viewers or extreme correctors.

Recommendable astrophotography correctors for this PHOTOLINE Apo

TSFLAT25Del - without focal length change:
The TS-Optics PHOTOLINE 1.0 APO full format flattener directly fits the M68x1 female thread. The backfocus starting from the M48x0,75 thread is 55mm.

TSRED379 focal length reducer 0,79x
The TS-Optics PHOTOLINE image field correctors and focal length reducers directly fits the M68x1 female thread. The backfocus starting from the M48x0,75 thread is 55mm. The focal ratio is improved to f/6,32 and the focal length is reduced to 960mm.

  TS-Optics PHOTOLINE 152 mm f/8 Triplet APO - 3,7" RPA focuser [EN]

Technical Data

Aperture: 152 mm - 6"
Focal length: 1216 mm
Focal ratio: f/8
Objective: Triplet APO objective with airgap
Glas: 2 APO elements - FK61 and Lanthan
Coating: Multi-coating on each glas-air surface
Resolution: 0,77"
Limiting magnitude: 12,7 mag
Tube weight: 12.8 kg
Tube length: 1120 mm with retracted dewcap
Tube diameter: 156 mm
Dewcap diameter: 186 mm
Backfokus: from 140 mm to 210 mm

In the Box

♦ Photoline APO - optical tube
♦ CNC tube rings and Losmandy Level dovetail
♦ Handle
♦ TSSUBA finder scope shoe


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