Manufacturer: -TS Teleskope
Product number: TSApo125f78

EUR 1.649,00RRP EUR 1.899,00you save 13.2% (EUR 250,00)


incl. 19 % VAT (DE)  
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  • On stock





rating: 5.0 of 5
  • Details..
  • Technical data..
  • In the box..
  • Reviews..
  • FAQ..
Teleskop-Service focuses on uncompromising optical and mechanical quality with the PHOTOLINE APO series.
This apochromatic refractor is equipped with one the best objectives of its class. The moderate focal ratio and the use of two special glasses (FPL53 and lanthanum glass) allows for a correction which is clearly above the level of two-lens ED apos in this price range. The image quality is comparable with three-element lenses. The telescope can be used visually without any restrictions and, thanks to the optional field flattener and focal reducer, there is also no obstacle to astrophotography.

The advantages and features of the Photoline 125 mm f/7.8 apo:
Air-spaced dublet objective with no relevant chromatic aberration - special glasses FPL53 (from Ohara) and lanthanum glass.
Temperature-compensated, fully adjustable cell made of metal.
2.5" RAP Photoline dual-speed rack and pinion focuser - holds accessories up to 5 kg
Direct M68 thread connection for correctors and reducers
Working distance 150 mm from the 2" receptacle
If using binoviewers or extreme reducers (Riccardi), the working distance can be extended to 210 mm.
Stable aluminum tube with internal baffles
CNC tube rings with GP/EQ5 style dovetail bar
Weight: 7.57 kg - very portable and small mounts like the EQ5 or Celestron Advanced VX can carry the apo.

An ultimative, high-end 2.5" focuser:

The 2.5" RPA focuser is a good alternative to the well-known Starlight FeatherTouch FTF25 - with a quality very close to it. The focuser holds camera-side accessories up to approx. 5 kg without tilting. The illumination is sufficient for full-frame size sensors.
Adjustment by rack and pinion - no friction - no yielding, unlike a Crayford focuser
M68x1 female thread for further adaptations
2" and 1.25" self-centering accessory adapters
Built-in extension with M95x1 connection thread and 60 mm length. If it is removed, the working distance increases from 150 mm to 210 mm, for example for binoviewers or reducers.

Astrophotography with the TS 125mm APO:

TS 0.8x Photoline focal length reducer and corrector - TSRedM63-125
The corrector is specially calculated for the 125 mm f/7.8 objective and offers the best possible performance.
The corrector improves the focal ratio to f/6.24 and thus enables short exposure times
The corrector is simply screwed into the M68x1 connection thread of the focuser using the M68a-M63i adapter (linked). Nothing is pushed in, so tilting is impossible.
The working distance is exactly 55 mm, so the connection of an astro camera, for example from ZWO, is no problem, because with the cooled cameras the adapters to 55 mm are always included. DSLR and mirrorless system cameras can also be adapted without any problems.

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin

Technical Information
Teleskop-Service has collected a lot of helpful information about refractors and provided it in English as a PDF file: refractors.pdf
Aperture:125 mm
Focal length:975 mm
Focal ratio:f/7.8
Objective:Air-spaced 2-element lens - adjustable
Special glasses:FPL53 from Ohara (Japan) + lanthanum glass
Coating:Fully multi-coated
Focuser:2.5" rack and pinion focuser
Eyepiece side connection:M68x1 thread (female), 2" and 1.25" receptacle
Back focus:150 mm from the 2" receptacle with the M95x1 extension
Extended back focus:210 mm from the 2" receptacle without the M95x1 extension
Connection thread at the tube:M138x1 thread (female)
Weight:7.57 kg
Tube length:850 mm with retracted dew shield
Tube diameter:140 mm
Dew shield diameter:170 mm
Shipping weight:10.5 kg
Shipping dimensions:92 x 30 x 27 cm
PhotoLine 125 mm apochromat
M95x1 L=60 mm extension
CNC tube rings
GP style dovetail bar

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin

Many thanks to our customer Sebastien Diez from France for these great photos,, ...
... taken with a TS-Optics Doublet SD-APO 125mm f/7,8 - FPL53 / Lanthan Objective

NGC 2244 (Rosette Nebula)





NGC 2174 (Monkey Head Nebula)





IC 1795 (Fish Head Nebulal)





SH2-184 (Pacman Nebula)





Sebastien has been doing astrophotography for about 5 years.


Equipment
Telescope: TS-Optics Doublet SD-APO 125mm f/7,8 - FPL53 / Lanthan Objektiv
Reducer: TSRED279
Mount: Skywatcher HEQ-5
Imaging Camera: ZWO ASI-2600MC Pro
Guidingcamera: ZWO ASI 120 MC
Controller: ZWO ASIAir Pro
Filter: Optolong L-Extreme


Exposure times
NGC 2244 > 150 x 120 s
NGC 2174 > 250 x 120 s
IC 1795 > 150 x 120 s
SH2-184 > 200 x 120 s



Customer photo by Sven Wienstein
Our customer Sven Wienstein from Herten (Germany) captured a really detailed image with this telescope in particularly calm air and very good visibility:

Object: Jupiter with Great Red Spot

Photographer: Sven Wienstein, Germany
Date of capture: 2022-10-11, 21:47 UT
Telescope: TS Photoline 125/975 SD Apo (TSApo125f78)
Dispersion compensation: ZWO ADC (ZWOADC)
Filter: QHY IR-cut filter (not in our portfolio, IR1-E as alternative)
Focal length extender: Baader Q-Barlow 2.25× (BA2956185)
Camera: QHY-5-III-462c (not in our portfolio, asi462mc as alternative)

Many thanks for providing us with the great photography!

Question:
How do I get to the M68x1 female thread?

Answer from Teleskop-Service:
At the transition from the 2" clamp to the drawtube you have three small grub screws, you must loosen these, then you can unscrew the 2" clamp and you have the M68x1 female thread on the extension tube available


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Reviews

Written by Marc Ouellet
on 2022-04-06

"This is great size scope for astrophoto."

Written by Frank Bindel
on 2021-12-17

"Astrofotografie _ wetterbedingt noch nicht im Einsatz"

Written by Franz Weichenberger
on 2021-04-07

"Sehr geehrtes TS Team, vorab der 125er ist das Teleskop, das mich in Zukunft begleiten wird. Genauso hatte ich es mir erhofft. Die mechanische Verarbeitung steht einem Takahashi FS78, den ich mal besaß und and dem sich alle Teleskope meine späteren Geräte messen mussten, kaum nach. Der Okularauszug gefällt mir aufgrund des Microfocisierers fast besser und was soll ich sagen optisch kann ich bei meinem 125 ED praktisch mehr unterscheiden, dass es kein Japan Fluorit Apo ist. Beteibe die Sternbeobachtung seit meinen Jugendtagen, also mehr als 30 Jahre und hatte zahlreiche verschiedene Teleskope mit Öffungen von 3 Zoll bis über 300 mm. Unter anderem ein Celestron C8, einen Vixen 102M, einen 120NA Neoachromaten und den Tak. Ich konnte den 125er jetzt bereits mehrere Nächte testen. Ein gutes Teleskop kann hohe Vergrößerungen im Rahmen der Öffnung bringen ohne dass das Bild irgendwie ""flau"" wird. Das konnte der Tak und das kann dieser ED. Das konnte weder das C8 noch die Vixen Refraktoren, die ich hatte. Izar und Iota Leonis hab ich gut trennen können und bei dem kleinen Sternhaufen neben M35 sind einzelne Sterne aufgeblitzt und die liegen um m15. 4 Kleinkrater in Plato und ein Bild des Mondes am Terminator werde ich nicht mehr vergessen. Ich hab das niemals zuvor so ""knackig"", detailliert und kontrastreich gesehen. 190fach mit einem.Tak LE5 mm Okluar und dann ca 0.5 mm AP mit einem Ortho. Ich musste einfach stauen. Mein Exemplar ist jedenfalls verdammt gut und ich kann es jedem empfehlen, der das Bild in einem Apo mag aber nicht bereit ist für diese Öffnung den Wert eines Gebrauchtwagens zu bezahlen um ein Gerät eines der japanischen, russischen oder amerikanischen Premiumherstellers zu bezahlen. Das Gerät zeigt in meinen Augen keine Farbabweichungen ist scharf und kontrastreich. Viel mehr geht physikalisch kaum mehr mit 125 mm Öffnung als das Gerät zeigt. Beste Grüße ***"

Written by Vasile Unguru
on 2020-08-31

"excellent telescope. very pleased with the price-performance ratio, visual experience and photography. it is easy to handle as well. highly recommended."