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Lens and Eyepiece Cap 40 mm Internal Diameter Push-On Dust Cover for Telescope Depth 7 mm Black Plastic Lens Protection

Lens and Eyepiece Cap 40 mm Internal Diameter Push-On Dust Cover for Telescope Depth 7 mm Black Plastic Lens Protection

Plastic dust cap for eyepieces and lenses with an external diameter of 40 mm. It can be applied without tools and keeps the front lens clean between observations. Full description
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€21.35
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Overview
Lens and Eyepiece Cap 40 mm Internal Diameter Push-On Dust Cover for Telescope Depth 7 mm Black Plastic Lens Protection

The cap with a 40 mm internal diameter is designed for telescope eyepieces and lenses with an external diameter of 40 mm. It fits over the edge of the optics and covers the front lens, preventing dust from settling on it during transportation or storage. The cap is made of lightweight black plastic and will not add significant weight to your equipment. It contains no springs or latches; it is applied by pressure and removed by pulling. You can use it as a replacement for a lost original cap or as an accessory for an eyepiece that did not come with a cap.

The cap has the shape of a low cylinder with a flat top and a ribbed surface. The depth of 7 mm ensures that the cap hugs the edge of the eyepiece or lens and covers the entire front surface. The ribs around the edge make it easier to grip, even in the dark while observing the night sky. The value of 40 mm indicates the internal diameter of the cap, so please measure the external diameter of your optics before selecting. For a set of eyepieces with different diameters, you can freely supplement the caps in various sizes.

The cap is suitable for telescope eyepieces, smaller lenses, and other optical parts with a cylindrical end of an external diameter of 40 mm. It will replace a lost original cap or complement an eyepiece that was never supplied with a cap. If you store multiple eyepieces in one case, each can have its own cap, keeping the lenses clean even after prolonged storage. The thin wall of the cap adds almost no volume to the eyepiece, allowing it to fit into precisely cut foam inserts. Before purchasing, we recommend measuring the external diameter of your optics with a vernier caliper.

  • Type – push-on dust cap
  • Internal Diameter – 40 mm
  • Depth – 7 mm
  • Material – plastic
  • Colour – black
  • Shape – low cylinder with a flat top and ribbed circumference
  • Use – telescope eyepieces, camera lenses, and other optics with an external diameter of 40 mm
  • Contents – 1 dust cap with an internal diameter of 40 mm

Occasionally wipe the cap with a dry or slightly damp cloth to prevent dust from entering. Only apply it to the optics when the lens is clean and dry. During observations, keep it in your pocket or in a compartment of your bag to avoid losing it among other accessories. Do not expose the plastic body to high temperatures for extended periods.

The 40 mm dust cap helps keep the front lens of the eyepiece or lens clean between individual observations. It is useful for both astronomers and photographers who transport their equipment in a case or bag. It is made of plastic and the smooth flat top covers the entire front surface of the optics. Before ordering, measure the external diameter of your device and select the appropriate size.

Price incl. VAT €21.35