Voigtlander Retina DKL to SONY E mount Adapter Adjustable Focusing Helicoid 37.8mm~68mm
 adapter Brass inside part inner core,such as SONY NEX3 NEX5 NEX6 NEX7 alpha A7 A7R A7000
 Camera adapter.
Made of Brass by the inner core and the aluminum anode oxide film in high quality black.The item consists of a DKL TO M42, a M42 (25~55mm) Adjustable Focusing Helicoid and a M42 to SONY E mount camera (1.5mm thick) of the ring, they can use the independent utility.
The length of this helicoid tube 37.8mm (shortest) to 68mm (longest), it offers a total of 30mm movement distance for lens focusing.
This Helicoid tube is useful for those lenses without focus ring,tube offers fine focus control for macro photography. 
You can use Voigtlander Retina DKL lens to Sony NEX3 NEX5 NEX6 NEX7 A7 A7R A5000 A7000 Camera.
It could be used as Macro barrel and Allows focusing to infinity.
Instrutoin:Attach the Helicoid tube to the lens,then mount the combination of lens and Helicoid tube to the camera.
Ordinary Blackening Technology, weakened the effect of light is poor,Our Adapter, Lens hood, Adjustable Focusing Helicoid and all the inner hole,The black coating which is tailored, weaken the function of light. You don't try to clean it,will fall off powder, affect your camera.Please choose carefully!
Note: Body color of the adapter is shown for reference only. Body color may be subject to change by manufacturer, but the function is the same.

We accept PayPal and Bank Transfer.
We ship within 2 business days after payment. will ship worldwide from CHINA.Your 100% satisfication and 5-star positive feedback is very important for us, please contact us first if you have any problems before leave negative or open ebay case or paypal dispute. Thank you very much!
We offer 1 year warranty.All sales are final. When you receive your package, promptly check the items to make sure the items are intact. We will credit or exchange for DEFECTIVE items only. Or if the product was sent to you in error by our staff.All Shipping and Handling cost will not be refunded.
If product are not found defective, buyer need to bear the postage cost for posting back the item(s). Returning charger is covered by buyer, we will cover the charge for reshipment.
if you have any problems, we will reply within 48 hours. if you have any urgent matters, call us please.Thank you!