Direct Connection Kit for Sankor 5E and VVD Vazen Variable Diopter

Direct Connection Kit for Sankor 5E and Vazen Variable Diopter

• Front side: 70mm OD and clamp to fit Vazen Variable Diopter (Kowa 16-H version)
• Rear side: M67x0.75 female thread to fit Sankor 5E (with front ring removed)

Important note: Only use this with the KOWA 16-H version of the Vazen Variable Diopter. The ISCO ULTRASTAR version of the VVD WILL NOT WORK.

The purpose of this kit is to minimise the air gap between the Vazen Variable Diopter and the Sankor 5E, maximising field of view and minimising vignette. It also provides a more secure mounting solution.

There are two parts in this kit: a threaded ring (DC_inner) and a clamp ring (DC_outer). You will need your own Vazen Variable Diopter (VVD) and Sankor 5E.

Installation instructions (please refer to the pictures):

1. Calibrate your Sankor to infinity focus and secure the focus ring with tape or using the lock screw.
2. Loosen the three lock screws on the front ring of your Sankor, then unthread the front ring, taking care not to affect your focus setting.
3. Fully thread DC_inner onto the front of the Sankor, then secure using the lock screw on DC_inner. Do not overtighten, it just needs to stop DC_inner from unthreading. If you need to adjust infinity later, you will need to unthread DC_inner slightly to allow the focus ring to turn.
4. Take note of the three notches on one edge of DC_outer. Slide DC_outer onto the rear ring of your VVD, making sure the three screws sit in the three notches. Tighten each of the six clamp screws gradually and evenly. Do not overtighten. Optional: for extra security, you can drill shallow divots in the VVD’s rear ring so the screws can grip better.
5. Slide the front of DC_inner and your Sankor into DC_outer and the rear of the VVD as shown. Tighten each of the six clamp screws gradually and evenly. Do not overtighten. Ideally, avoid positioning a screw directly on DC_inner’s lock screw. This is the step where you set the position of your VVD’s focus markings.