GSO M57-to-T Thread Adapter
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GSO M57-to-T Thread Adapter. Has female M57x0.75 threads on one side to attach to GSO's 2" Camera Projection SuperView eyepieces. The other side has a standard male T/T-2 thread (M42x0.75) that can be attached to T-2 extension tubes or T-rings. Made of aluminum and anodized black.
Please note that the female M57 thread of this adapter is significantly shorter than the male M57 thread on the correspoding eyepiece. As a result, this will only catch the top of the eyepiece by 3/4 to 1 turn, leaving a signfiicant portion of the male thread of the eyepiece exposed. However, the connection will still be completely secure. GSO has been selling this same adapter for over a decade with no issues on account of this short thread.
Other Information
- Country of Manufacture: Taiwan
GSO M57-to-T Thread Adapter. Has female M57x0.75 threads on one side to attach to GSO's 2" Camera Projection SuperView eyepieces. The other side has a standard male T/T-2 thread (M42x0.75) that can be attached to T-2 extension tubes or T-rings. Made of aluminum and anodized black.
Please note that the female M57 thread of this adapter is significantly shorter than the male M57 thread on the correspoding eyepiece. As a result, this will only catch the top of the eyepiece by 3/4 to 1 turn, leaving a signfiicant portion of the male thread of the eyepiece exposed. However, the connection will still be completely secure. GSO has been selling this same adapter for over a decade with no issues on account of this short thread.
GSO M57-to-T Thread Adapter. Has female M57x0.75 threads on one side to attach to GSO's 2" Camera Projection SuperView eyepieces. The other side has a standard male T/T-2 thread (M42x0.75) that can be attached to T-2 extension tubes or T-rings. Made of aluminum and anodized black.
Please note that the female M57 thread of this adapter is significantly shorter than the male M57 thread on the correspoding eyepiece. As a result, this will only catch the top of the eyepiece by 3/4 to 1 turn, leaving a signfiicant portion of the male thread of the eyepiece exposed. However, the connection will still be completely secure. GSO has been selling this same adapter for over a decade with no issues on account of this short thread.
Other Information
- Country of Manufacture: Taiwan
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GSO M57-to-T Thread Adapter


















