The Nikon wide T2 adapter has a M48 thread that is ideal for full frame cameras
The standard T2 ring uses a M42 thread that is suitable only for Nikon cameras with APS sensor. Full frame sensors have a diagonal of 43.3mm which which is wider than the 42mm thread of standard T2 ring. Using a T2 ring on full frame cameras will cause vignetting.
This adapter suits the latest Nikon cameras.
![NIKON WIDE T2 ADAPTER [M48] Testar Australia.](http://cdn.shopify.com/s/files/1/0071/4935/5059/products/IMG_9146-_SWA-TM48-EOS_---PLAIN_2400x.jpg?v=1606203019)
![NIKON WIDE T2 ADAPTER [M48] Testar Australia.](http://cdn.shopify.com/s/files/1/0071/4935/5059/products/IMG_9146-_SWA-TM48-EOS_---PLAIN_800x.jpg?v=1606203019)
![NIKON WIDE T2 ADAPTER [M48] Testar Australia.](http://cdn.shopify.com/s/files/1/0071/4935/5059/products/IMG_9146-_SWA-TM48-EOS_---PLAIN_{width}x.jpg?v=1606203019)