MDSLR-NE 1.38x Widefield T-mount adapter for Nikon E-series Phototubes

Martin 1.38x Widefield DSLR T-mount Adapter for Nikon E-series (E200 / E400 etc) non-ISO 38mm photoports.  Only works with infinity corrected objectives.  Includes T2 adapter for Canon EOS or Nikon.

Provides the widest field-of-view without vignetting for APS-C sensor DSLR cameras.