Lens Adapter Pixco PENTAX K to T2 mount (Pixco SB2106)

Pixco PENTAX K to T2 mount adapter (model SB2106) provides a mechanical interface to attach PENTAX K-mount lenses to devices with a T2 (T-mount) threaded connection. The adapter establishes a secure physical coupling without electronic contacts, allowing lenses designed for PENTAX K bayonet mounts to be used with telescopes, microscopes, teleconverters, or camera accessories that accept a T2 thread. It supports manual focus and manual exposure operation and is sized for optical alignment between the lens and the receiving T2 element.

Advantages

The adapter offers a robust metal construction that maintains flange distance and alignment for reliable optical performance. Its lack of electronic contacts makes it compatible with a wide range of optical instruments and simple to use with manual exposure techniques. The T2 threaded interface is a widely adopted standard, making this adapter versatile for astrophotography, macro attachments, and custom optical setups.

Suitable for

• Attaching PENTAX K-mount lenses to T2-threaded telescopes or camera bodies
• Connecting lenses to microscope camera adapters and macro focusing rails with T2 threads
• Integrating PENTAX lenses with teleconverters or extension tubes that use a T2 connection

Key specifications

• Mount conversion: PENTAX K bayonet to T2 (T-mount) threaded interface
• Connection type: mechanical only, no electronic contacts
• Material: metal construction for durability and stable alignment
• Compatibility: fits standard T2 thread accessories and optical instruments
• Operation: supports manual focus and manual aperture control on lens

How to use

To use the adapter, first remove any rear lens caps and align the PENTAX K bayonet tabs with the adapter’s bayonet receptacle. Rotate the lens until it locks into place. Then screw the adapter’s T2 threaded end into the receiving T2 female thread on your telescope, microscope, teleconverter, or camera accessory until secure. Confirm that the optical axis is centered and that the mechanical connection is firm before operation. Because the adapter does not transmit electronic signals, set focus and aperture directly on the lens and use manual exposure controls on the camera or imaging device.

Usage recommendations

For optimal results, ensure the lens mount and T2 threads are clean and free of dust. Use a secure mounting support when attaching heavy lenses to telescopes or extension setups to avoid strain on the adapter. When precise flange distance is critical, verify focus with test images and adjust any intermediate elements accordingly.