B+W 46-49mm Step-Up Ring ikan PT-Elite-U Open a terminal program of

Open a terminal program of your choice at 9600bps 8N1

Runs on eight user-supplied AA batteries

25" barrel diameter eyepieces: 5mm eyepiece: Yields 180x magnification

one for GND

B+W 46-49mm Step-Up Ring ikan PT-Elite-U Open a terminal program ofUse 49mm Filters on 46mm Lens Knurled Sides for Firmer Grip Anodized Aluminum Construction The B+W 46 49mm Step Up Ring permits the use of 49mm threaded filters on lenses with 46mm filter threads. It features a lightweight, aluminum alloy construction that has a corrosion resistant, black anodized finish for durability. This step up ring has side knurlings to provide a more textured grip when mounting or removing it from a lens. Size 46 49 mm