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[SOLVES BACK FOCUS FOR ASTRO PHOTOGRAPHY] Extend your camera to telescope distance to achieve focus when native back focus is insufficient; this extension tube is designed for astronomical telescope photography and lets cameras, DSLRs, mirrorless bodies and imaging sensors reach proper focus for planetary, lunar and deep imaging.
[PRECISION M48X75 THREAD] Machined M48x0.75 threading provides a secure, repeatable connection to compatible telescopes, lenses, MPCCs and guide mirrors so your imaging train stays centered and stable during long exposures.
[ANODIZED ALUMINUM BUILD] Made from aluminum alloy and anodized for surface protection; the lightweight construction minimizes added load on your focuser while providing reliable mechanical stability for accurate framing and focus adjustments.
[MATTE INTERNAL FINISH REDUCES GLARE] Internal matte thread treatment helps absorb stray light and reduce internal reflections that can lower contrast in astrophotos, improving overall image when coupling optics and cameras.
[SIZING REMINDER] Available lengths 3mm, 5mm, 7mm, 10mm, 12mm, 15mm, 20mm, 30mm, 40mm, 50mm; package contains 1 extension tube. CHECK YOUR SIZE CHART (NOT SIZE CHART) AND CONFIRM M48X75 THREAD BEFORE PURCHASE.

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Features:
* Extension Tube is made of aluminum alloy, durability and light weight
* Extension Tube is anodized and has internal matte thread treatment to reduce the probability of glare
* Application: Used for connecting various cameras to astronomical telescopes, lenses, MPCCs, guide mirrors and other equipment to solve the problem of not being able to focus due to insufficient back intercept,
and extend the distance from the lens to the camera.
* The thread diameter of this extension tube is M48 (48mm)
* Before purchasing, please check our size table to make that the size and thread are correct

Specifications:
*Product Name: Astronomical Telescope Photography Extension Tube
*Material: Aluminum Alloy
*Size: approx.
Thread: M48X0.75
Length: 3mm/5mm/7mm/10mm/12mm/15mm/20mm/30mm/40mm/50mm
*Color: Black
*Weight: about 5-50g

Package Content:
1 x Extension Tube

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M48x0.75-7mm

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