Astronomical Telescope Eyepiece 3X Magnifier Barrow Full Metal
The F010 3X magnifier Barlow lens is a 2-element fully multi-coated optical accessory with a 1.25-inch barrel for standard telescope focusers and diagonals.
Product Overview
The F010 3X magnifier Barlow lens is a 2-element fully multi-coated optical accessory with a 1.25-inch barrel for standard telescope focusers and diagonals. It increases the effective magnification of any eyepiece by 3 times, with blackened lens edges to reduce internal reflections and a brass ring inside the barrel to prevent marking the eyepiece during installation.
- ModelF010
- Magnification3x
- CoatingFully multi-coated
- Lens edgesSmoked black
- Barrel size1.25-inch
- Eyepiece protectionInternal brass ring
Key Benefits
- 3X magnification extends the effective power of any 1.25-inch eyepiece without changing the objective
- Fully multi-coated optics improve light transmission and reduce glare across the visible spectrum
- Blackened lens edges minimize internal reflections and ghosting in low-light astronomical viewing
- Brass ring inside the barrel protects the eyepiece barrel from scratches or marks during tightening
- 1.25-inch standard barrel fits all focusers and diagonals with 1.25-inch ports, ensuring compatibility across setups
Application Scenarios
- Increasing magnification for planetary or lunar detail without replacing the primary eyepiece
- Using with a low-power eyepiece to achieve higher magnification for deep-sky object inspection
- Mounting on a telescope diagonal to maintain a comfortable viewing angle while increasing magnification
- Field use where quick magnification adjustment is needed without swapping eyepieces
- Educational astronomy setups where multiple magnifications are needed from a single eyepiece
Who It Is For
- Amateur and educational astronomy dealers
- Telescope users with 1.25-inch focusers and diagonals
- Astronomy clubs and school science programs
- Observation stations requiring compact, reliable magnification boosters
- Users upgrading eyepiece performance without replacing the entire optical train
Problems It Solves
- A fixed magnification eyepiece limits the range of usable magnifications without multiple eyepieces
- Uncoated or poorly coated optics reduce contrast and introduce flare in low-light conditions
- Loose fit in the focuser can damage the eyepiece barrel or cause image shift
- Lack of internal protection in the barrel leads to scratches or wear from repeated installation
- Incompatible barrel sizes force users to buy new eyepieces or adapters
Technical Features
- 2-element optical design with fully multi-coated surfaces for improved light transmission
- Blackened lens edges to suppress internal reflections and ghosting
- 1.25-inch barrel diameter compatible with standard telescope focusers and diagonals
- Internal brass ring provides secure grip and protects the eyepiece barrel from set screw marks
- Set screw engages the brass ring to hold the eyepiece in place without damaging the barrel
Specifications
| Model | F010 |
|---|---|
| Magnification | 3x |
| Coating | Fully multi-coated |
| Lens edges | Smoked black |
| Barrel size | 1.25-inch |
| Eyepiece protection | Internal brass ring |
| Net weight | 96g / 0.21lb / 3.38oz |
| Size | 96 * 39 * 39mm |
Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.
Customization Options
- Available in standard 1.25-inch barrel size only
- No options for different magnifications or coatings beyond the F010 model
- No custom marking or engraving offered
- No alternative barrel sizes or threading available
Comparison With Other Options
| Uncoated Barlow lens | The F010 has fully multi-coated optics, which improves light transmission and reduces glare compared to uncoated versions. |
|---|---|
| Plastic-barrel Barlow lens | The F010 uses a full metal barrel with a brass ring, which resists wear and protects the eyepiece better than plastic alternatives. |
| 2X Barlow lens | The 3X magnification provides higher effective power than a 2X lens, useful for finer planetary or lunar detail. |
Use Guide
- Ensure the telescope focuser or diagonal accepts 1.25-inch barrels before installation
- Insert the F010 into the focuser or diagonal and tighten the set screw gently until secure
- Avoid over-tightening the set screw to prevent damage to the brass ring or eyepiece barrel
- Use with any 1.25-inch eyepiece to achieve 3 times the original magnification
- Clean the lens surfaces with a soft brush or lens cloth before use to maintain optical clarity
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Frequently Asked Questions
What is the magnification of this Barlow lens?
3x. It increases the effective magnification of any 1.25-inch eyepiece by three times.
Does it fit all telescopes?
It fits any telescope with a 1.25-inch focuser or diagonal. Confirm your setup uses a 1.25-inch port.
Is the coating applied to both sides of the lenses?
Yes. The fully multi-coated coating is applied to all air-to-glass surfaces for optimal light transmission.
Can I use this with a 2-inch eyepiece?
No. The barrel is 1.25-inch only. It will not fit a 2-inch focuser or eyepiece.
Does the brass ring scratch the eyepiece barrel?
No. The brass ring is designed to protect the barrel from the set screw and prevent marks.
What is the weight of the lens?
96 grams (0.21lb or 3.38oz).
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