Useful accessories allows you to attach your Pentax-k Cameras to the 31.7mm 1.25inch eyepiece diameter telescope: "FOR Camera K-x K-r K-01 K-30 K20D K200D K2000 K1000 K100D Super K110D Etc"
With T-ring; you can use M42 Lenses on your camera; Inner ring can be rotated to ensure lens is always right way up
Having the right equipment to shoot art-gallery images of the heavens starts with the right telescope; camera and camera adapter; and ends here
Male thread - M42X0.75; Female thread - M42X0.75; eliminates a range of focusing problems
The extension tube has a T2 interior thread and a T2 exterior thread for elegantly solving spacing problems in astrophotography