Apochromatic refractor TS Optics 80/540 Photoline Lanthanum OTA

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Apochromatic refractor TS Optics 80/540 Photoline Lanthanum OTA - Only tube with accessories, without mounting, without tripod

Article No.: TSAPO80F7
Manufactured by: TS Optics
Shipping weight: 3.1 kg

Our price: 877 €

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This product is available in the following variants:
TS Optics PhotoLine 60/360 FPL53 Apochromatic Refractor OTA	607.60 €
TS Optics 72/432 FPL53 Photoline Apochromatic Refractor OTA	656.90 €
Apochromatic refractor TS Optics 80/540 Photoline Lanthanum OTA	877 €

Specifications

Type of telescope: ED & Apochromats

Optical scheme: Apochromat Doublet

Focal length: 540 mm

Aperture: 80 mm

Aperture ratio: 6.8

Resolving capacity: 1.44"

Limit value: 11.3 magnitude

Light gathering capacity: 130x

Product range: Photoline

Max. useful magnification: 160x

Connection type: 2″

Mounting: No mount

Recommended for: Advanced

Application area: Deep Sky observation, Planets observation

Typical magnifications

The recommended magnification is highlighted in yellow.
D = telescope aperture in millimeters

Maximum useful (2D):
169x
(with a 3.2 mm eyepiece)

Maximum Useful Magnification (2D)
The highest magnification that a telescope can realistically use. Above this value, the image becomes dim, blurry, and shows no additional detail due to optical and atmospheric limits.

Resolving (1.4D):
108x
(with a 5 mm eyepiece)

TIP: Binorum Planetary Deluxe LE 5mm 55° Wide-Angle Eyepiece

114.80 €

Resolving Magnification (1.4D)
The magnification at which the telescope reaches its maximum resolving power. Fine details become visible, but increasing magnification further does not improve sharpness.

High (1D):
77x
(with a 7 mm eyepiece)

High Magnification (1D)
A strong magnification suitable for detailed observations of the Moon, planets, and close double stars under good atmospheric conditions.

Optimal (0.7D):
54x
(with a 10 mm eyepiece)

TIP: Binorum Plössl 10mm 50° 1.25″ Eyepiece

40.05 €

Optimal Magnification (0.7D)
The best overall magnification for most observations. It provides a good balance between image brightness, contrast, and detail, and is often the most comfortable to use.

Medium (D/2):
39x
(with a 14 mm eyepiece)

Medium Magnification (D/2)
A versatile magnification range suitable for many deep-sky objects, such as star clusters and galaxies, as well as general lunar observing.

Low (D/3):
27x
(with a 20 mm eyepiece)

TIP: Binorum Super Plössl 20mm 50° SPL 1.25″ Eyepiece

46.60 €

Low Magnification (D/3)
A wide-field magnification used for scanning the sky, observing large nebulae, and locating objects before switching to higher power.

Minimum (D/6):
13x
(with a 41 mm eyepiece)

Minimum Magnification (D/6)
The lowest practical magnification of a telescope. It provides the widest possible field of view and is mainly used for star fields, Milky Way observations, and object finding.