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Starizona Threaded Cap
The Starizona Threaded Cap provides essential protection for your imaging train, available in the three most common astronomy thread sizes of M42, M48, and M54 to seal your optical train from dust and debris. Whether you are capping an M42 T-thread, an M48 2-inch filter thread, or a larger M54 connection, this simple accessory is critical for preventing damage to delicate threads during storage and transport.
Secure Dust Protection for M42, M48, and M54 Threads
An open port on your telescope or camera is an invitation for dust. The Starizona Threaded Cap is a fundamental component for equipment care, designed to screw directly onto any exposed male M42, M48, or M54 thread in your imaging setup. This creates a secure barrier that prevents dust, pollen, and moisture from settling on sensitive optical surfaces like corrector lenses or camera sensors when they are not in use.
Beyond dust protection, the cap also shields the fine threads on your expensive accessories from accidental bumps, cross-threading, or other damage. By keeping both the interior of your optical train clean and the exterior threads pristine, you ensure reliable connections and clean images every time you set up your gear.
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What is the Starizona Threaded Cap used for?
The Starizona Threaded Cap is used to cover and protect exposed male threads on your astronomy equipment, such as those on field flatteners, reducers, focusers, or cameras. It serves two main purposes: to keep dust and moisture out of your optical train and to protect the delicate threads from physical damage during storage or transportation.
How do I know which size Starizona Threaded Cap to get?
You will need to identify the size of the male thread you want to cover. The three sizes offered correspond to common astronomy standards:
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M42: Often called a "T-thread," this is common on many cameras and smaller accessories.
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M48: This is the standard thread for 2-inch filters and is frequently used on full-frame correctors and adapters.
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M54: A larger thread found on some larger format correctors, flatteners, and focusers.
Check the specifications of your equipment to determine which size cap you need.
Does the Starizona Threaded Cap fit inside female threads?
No, this is a cap designed to thread onto exposed male threads. To plug a female-threaded port, you would need a threaded plug, not a cap.
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| Available Thread Sizes |
M42, M48, M54 |
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Starizona Threaded Cap
× 1 (in selected size)
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Starizona Warranty
