Description:
This
double inner thread ring can be used in wide variety to connect various
lens accessories for experimental photography. To connect this your
accessories must be with Male (outside) thread, of course. Suitable to
connect with Male-Male 49mm rings as well.
Features:
Made of metal (anodized Aluminium), not plastic
Colour: Black
Has two Female (inner) threads from each side 49mm and 49mm
Thread pitch size: 0.75mm
Brand new, newer used
The total thickness of the ring is 7mm; thread depth from each side is 3mm, in the middle there is 1mm separation/stop tab
Suitable for:
Specialized adapters, extension tubes, double Male rings, wide angle lenses etc.