Specification :

YAM T-ring( M42) Adapter Telescope Parts
used for Pentax-K, Canon EOS, Minolta, Nikon, Sony, Olympus 4/ 3, Leica

Specification:
inner extinction thread.
fully aluminum
anodized black
female thread: M42* 0.75
suit to Pentax-K, Canon EOS, Minolta, Nikon, Sony, Olympus 4/ 3, Leica camera

Packing:
inner packing: white box packing
shipping packing: paper carton

Types:
T-ring-C for CANON EOS M42x0.75
T-ring-M for MINOLTA M42x0.75
T-ring-P for PENTAX-K M42x0.75
T-ring-N for NIKON M42x0.75
T-ring-S for SONY M42x0.75
T-ring-O for OLYMPUS 4/ 3 M42x0.75
T-ring-L for Leica M42x0.75

Also we have many models of the telescope accessory, such as telescope adater, adaters, eyepieces, focusers, diagonals and collimator eyepieces. welcome every to inquiry.