APM LZOS 130/1200 3.7 ZTA Refractor Telescope

Description

A 130mm apochromatic triplet at f/9.2 isn’t built for speed, it’s built for precision: 0.88-arcsecond resolving power and a fully rotatable 3.7-inch ZTA focuser that lets you frame a shot without touching the tube’s balance. The APM LZOS 130/1200 is the lightest large-aperture triplet in APM’s German-made lineup at just 11.3kg.

Wondering if f/9.2 is too slow for astrophotography? A longer, slower ratio trades wide-field speed for higher image scale and contrast on long-focus lunar and planetary targets, and the 360-degree rotatable focuser compensates by letting you frame precisely instead of fighting a fixed camera angle. This OTA ships without a mount, and at 11.3kg it’s the easiest APM triplet to pair with a mount, needing only 15kg of payload capacity.

Key Features of APM LZOS 130/1200 3.7 ZTA Refractor Telescope

A 3-element air-spaced Super ED triplet with 99.6% per-surface transmission delivers the same color-free optical formula as APM’s larger triplets, scaled to a lighter, more portable tube.

• 3.7-inch ZTA focuser rotates a full 360 degrees, framing shots without disturbing tube balance
• 10:1 dual-speed micro-drive locks in critical focus at high magnification
• 0.88-arcsecond resolving power holds detail on long-focus lunar and planetary targets
• 60mm image circle supports medium-format sensor tracking coverage
• At 11.3kg, this is the lightest large-aperture triplet in APM’s German-built range
• Heavy-duty flight case ships included, protecting the tube in transport between sites
• 2-inch and 1.25-inch adapters cover both eyepiece and camera formats out of the box
• Magnification range from 19x to 260x favors long-focus precision over wide framing

What Makes the APM LZOS 130/1200 Different

Against APM’s larger CNC-LW II triplets, this 130mm tube trades raw aperture for portability and mechanical flexibility: a 15kg mount requirement is a fraction of what the 175mm-203mm models demand, and the rotatable ZTA focuser is a feature the Feathertouch-equipped models in that line don’t offer. For imagers who value framing control and easy transport over maximum aperture, this is the more practical choice.

Applications & Use Cases

Built for high-precision, long-focus color-free lunar and planetary tracking, this refractor also handles deep-sky astrophotography across large-format CCD or CMOS sensor setups.

• Imagers who want triplet-level color correction without a heavy-duty observatory mount
• Observers prioritizing precise framing control via a rotatable focuser

APM Warranty & Support

The LZOS 130/1200 3.7 ZTA carries a 2-Year Factory Warranty covering manufacturing defects on the optical tube and focuser assembly, handled directly through APM’s support channel.