DARK CLEAR SKIES · 1.25-INCH OPTICS
Add a higher-power view
The DCS 2× Barlow Lens with T-Adapter combines nominal 2× amplification with fully multi-coated optics in a 1.25-inch format. Use it to extend the magnification range of a compatible eyepiece setup, with a T-adapter connection for a suitable camera arrangement.
More choice from your eyepieces
A Barlow increases the effective focal length of the telescope. With a compatible eyepiece, the nominal 2× factor gives approximately twice the magnification, offering another useful power without changing the eyepiece itself.
A 1,000 mm telescope with a 20 mm eyepiece gives 50×. Adding a nominal 2× Barlow gives approximately 100×. Your own magnification depends on the telescope, eyepiece and optical arrangement.
This can be useful for a closer look at lunar and planetary targets when the telescope and atmospheric conditions support the extra power. Start with a longer-focal-length eyepiece, refocus carefully and reduce magnification if the view becomes soft or unsteady.
Fully multi-coated optics
FMC means fully multi-coated. Anti-reflection coatings help reduce unwanted reflections and light loss through the optical surfaces. Higher magnification still narrows the true field of view and can make the view dimmer; it does not guarantee additional detail.
Visual observing and camera connections
For visual use: match the 1.25-inch Barlow to a compatible 1.25-inch eyepiece holder and eyepiece. Seat and secure each component, then refocus. Check that your focuser or diagonal provides sufficient clearance and focus travel.
For camera use: the T-adapter provides a camera-connection option. The complete arrangement must match your camera's fitting and any camera-specific ring or adapter requirements. Check the connection, available focus travel and camera spacing before assembling the system.
The amplification of a conventional Barlow can vary with spacing. Treat 2× as the nominal factor rather than a promise of exactly 2× with every camera configuration.
A closer look
Specifications
| Brand | Dark Clear Skies |
|---|---|
| Product | Barlow lens with T-adapter |
| Nominal amplification | 2× |
| Barrel / eyepiece format | 1.25-inch |
| Optical coatings | Fully multi-coated (FMC) |
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