Specialists In Astrophotography

Nikon Auto Extention
        Rings

PK-11A (8mm extension)
Price: $181
Code: 810619
PK-12 (14mm extension)
Price: $219
Code: 810621
PK-13 (27.5mm extension; as with 55 f2.8 micro)
Price: $250
Code: 810622
PN-11 (52.5mm extension; as with 105 f2.8 micro)
Price: $499
Code: 810625