Koji tube adapter

[sokoll]

Imam T2 adapter za Nikon koji sam nabavio pre nego sto je stigao durbin http://g02.a.alicdn.com/kf/HTB1JfeZGVXXXXbQXFXXq6xXFXXXD/221797468/HTB1JfeZGVXXXXbQXFXXq6xXFXXXD.jpg
za koji se ispostavilo da se ne skida okular , pa mi treba i onaj ring nastavak . Koji treba da kupim od ova dva , ili su isti ? Mozda nesto trece ?
Hvala lepo .

http://www.aliexpress.com/item/New-Spotting-Scope-Digital-Camera-Adapter-Telescope-Metal-Photography-Sleeve-Female-Thread-M48-Telescope-Accessories-W2148A/32507273740.html

http://www.ebay.com/itm/Connect-Digital-Camera-Telescope-Metal-Mount-Adapter-42mm-for-Spotting-Scope/291409390541?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D36461%26meid%3Db04af3d246004122961127d89942cc72%26pid%3D100033%26rk%3D2%26rkt%3D4%26sd%3D261893252970