BORG 7844 M42P1-M39AD
BORG 7844 M42P1-M39AD | Join M42P1 and M39 threaded parts
To connect an M42P1-threaded part with an M39-threaded part, the BORG 7844 M42P1-M39AD provides a direct adapter between those two designations. It’s for photographers and optical-system users who are building around threaded components and need these particular interfaces to meet. The practical benefit is a simpler connection between parts that would otherwise have different thread sizes, helping you put together the setup you want without changing those components. The important detail is right in the name: M42P1 on one side of the pairing and M39 on the other. Use it when both parts match those designations and you want to bring them together in a single threaded connection. This is a specific-fit accessory, rather than a general-purpose solution for every threaded lens or accessory; its value depends on having the matching parts in your setup.
Specialist Note
The M42P1 and M39 thread designations are the key physical detail here: they tell you which two parts this adapter is intended to bring together. I’d recommend it to someone who already has components in both sizes and wants a straightforward way to connect them, rather than replace a part simply because its thread differs. For a tidy setup, match each component to its thread designation before you begin, then start the connection carefully so the threads meet cleanly. It’s a focused little accessory, so it won’t solve a mismatch involving other thread sizes. If your parts are M42P1 and M39, though, this is the specific pairing to consider.
Technical Specifications
- Product: BORG 7844 M42P1-M39AD
- Model number: 7844
- Thread designation: M42P1-M39
BORG 7844 M42P1-M39AD is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
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Warranty & Returns
Warranty & Returns
Warranty & Returns Info
At Hard to Find Camera Store, we offer a 2-year warranty on all new products and a 6-month warranty on used equipment. If you're not fully satisfied with your purchase, you can return it within 14 days of delivery for a refund or exchange, provided the item is in its original condition.
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BORG 7844 M42P1-M39AD is backordered and will ship as soon as it is back in stock.
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Condition
Payment & Security
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Worldwide Insured & Tracked Shipping
Secure delivery for camera gear to your doorstep, no matter where you are!
Warranty
New Equipment: 2 year warranty.
Used Equipment: 6 month warranty.
For any issues, our dedicated support team is here to help.


