TS-Optics PhotoLine 125mm f/7.8 FPL53 Lanthanum Apo - 2.5" Focuser

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" RPA Photoline dual-speed rack and pinion - holds accessories up to 5 kg
• Direct M63 thread connection for correctors and reducers with sufficient working distance
• Stable aluminium tube with internal baffles
• CNC tube rings with GP/EQ5 style dovetail bar
• Weight: 7.57 kg - so also small mounts like the EQ5 or Celestron Advanced VX can carry the Apo.

The new Photoline RPA 2.5" deluxe 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
• M63x1 thread for further adaptations
• 2" and 1.25" self-centering accessory adapters

TS 2.5" full-frame size corrector and field flattener - TSFLAT2,5

• Focal length is unchanged.
• Recommended distance from the M69 thread of the corrector to the sensor: 88 mm
• You need the adapter M63a-M68i for the adaption.

TS 0.79x Photoline focal length reducer and corrector - TSRED379

• Focal length is reduced to 770 mm,the photographic speed is raised to f/6.16
• Recommended distance from the M48 thread of the corrector to the sensor: 55 mm
• You need the adapter M63a-M68i for the adaption.

Last update:

New:

• In the latest version again improved focuser
• M68 and M63 connection
• Better clamping
• Flexible working distance: Standard 150mm from the 2 "clamp
• Incl. M95x1 60mm extension - if you take them out, you have 210mm - this is for example a Bino approach with 2 "zenith mirror WITHOUT glass path compensation.

In the box:

• PhotoLine 125 mm apochromat
• CNC rings
• GP style dovetail bar
• M95x1 Extension Tube L=60mm