Telescope Eyepiece Lens, M42 x 0.75 Aluminium Alloy Internal Threaded Lens Dust Cover, for M42 Thread Telescopes or Photographic Sockets, Internal Diameter 42mm

Specification:Item Type:Lens Dust Material: Aluminum alloyPackageList:1 x Lens Dust

• Size Standard: The diameter of the dust cover is 42mm, and the thread is 0.75cm. Real machine 1:1 opening is suitable for astronomical primary mirrors or photography sleeves with M42 external threads in the size of M42x0.75.
• Easy to Use: The internal thread design of the dust cover can be directly onto the thread of the lens interface, making it less likely to fall off compared to a closed dust cover and more secure in protecting the lens.
• Lightweight and Portable: The dust cover weighs only 13 grams and is a lightweight structure, which can be used indoors or carried outdoors without any burden, making it very worry .
• and Wear The lens cover is made of premium and aluminum alloy, which is wear not easy to wear out, and has good weather It can withstand any extreme weather and has a long service life.
• Protecting the Lens: This dust cover can prevent dust from falling on the lens on the one hand, and also the lens from collisions and extreme weather.