• Line art of the nrStellar Ultimate Kit for the Rokinon/Samyang Ring System
  • nrStellar Ring System with a ZWO EAF turning the focus ring on a Rokinon or Samyang 135 f2 camera lens
  • A Rokinon 135mm f2 Cinema Lens mounted in the nrStellar Rokinon/Samyang 135 Ring System. An autofocuser, guidescope, filterwheel, power box, and astronomy camera are also installed. Text reads "Customer Image'
  • A Rokinon 135mm f2 Cinema Lens mounted in the nrStellar Rokinon/Samyang 135 Ring System. An autofocuser, guidescope, filterwheel, power box, and astronomy camera are also installed. Text reads "Customer Image'
  • ZWO EAF adapter kit for the nrStellar Rokinon Ring System
  • A Gemini EAF Adapter installed on an nrStellar ring system
  • The nrStellar Rokinon Rings laid on their side and stacked on top of each other
  • Findershoe bracket attached to the nrStellar Rokinon Ring System.
  • Black general-purpose accessory rail attached to nrStellar lens rings
  • Black 45 mm riser blocks installed on a nrStellar ring kit
  • the nrStellar cable manager. It is black with barbed slots for holding onto cables.
  • A MeLE Mini PC, edited to be slightly transparent, attached to the nrStellar Rokinon Rings via the mini PC mount
  • Rokinon 135 lens caps with 'nrStellar' branding on a light gray background. Text advertises that it stays attached to your lens hood.
  • Rokinon 135 Bahtinov Mask on a light gray background
  • Rokinon/Samyang 135mm f2 lens installed in nrStellar rings with a branded lens cap placed over the lens hood.
  • Technical drawing of the front lens ring for the nrStellar Rokinon/Samyang Ring System
  • Technical drawing of the rear lens ring for the nrStellar Rokinon/Samyang Ring System
  • Technical drawing of the 78mm camera ring for the nrStellar Rokinon/Samyang Ring System
  • Technical drawing of the 90mm camera ring for the nrStellar Rokinon/Samyang Ring System
  • Dimensions of the accessory rail for the nrStellar ring system. The rail is 90x53.5mm. The distance between M6 mounting holes is 80mm. There are 5 slots spanning the length sized for M4 bolts, 10mm apart.
  • Technical drawing of the nrStellar Finderscope Shoe module for the Rokinon/Samyang Ring System
  • Technical drawing of the mini PC mounting plate module for the nrStellar Rokinon/Samyang Ring System
  • Technical drawing of the nrStellar 45mm riser block for the Rokinon/Samyang Ring System
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Rokinon/Samyang 135mm f/2 Ring Kit

Rokinon/Samyang 135mm f/2 Ring Kit

$37.99
$37.99
Sale Sold out

The Rokinon or Samyang 135mm f/2 lens is a favorite among astrophotographers, remaining in their kit even as they upgrade to larger equipment. The nrStellar Ring Mounting System is designed to last as long as your Rokinon, creating a reliable deep-sky astrophotography rig you'll use for years.

Why Choose the nrStellar Ring System?

Key Features:

  • Customizable, Modular System: Mix and match add-ons to customize your setup with an autofocuser, guide scope, ASIAIR/MiniPC, and more
  • Easy Lens Rotation: Geared autofocus allows for easy lens rotation with zero added backlash
  • Premium, Carefully Selected Materials:
    • 18-8 stainless steel threaded connections resist rust and outlast direct plastic threading. Embedded nuts provide stronger pull-out resistance than threaded inserts.
    • Carbon fiber-infused PETG rings and add-ons offer better temperature resistance and rigidity than standard plastics. Our custom blend of carbon fiber PETG performs better than commercially available PETG-CF blends. 
    • Waterproof, closed-cell EPDM foam liner holds your lens securely without pressure points
  • Increased Rigidity: Reduce camera sag with our camera support (see compatibility list below)
  • Low Center of Mass: Makes the most of your mount’s payload capabilities by moving the heavier add-ons to the lower add-on mounting locations.
  • Compatibility: Works with both the normal and the cinema versions of the Rokinon/Samyang 135mm f2 lens

All nrStellar products come with a 2 year warranty. If you experience any issues, just shoot us an email and we’ll sort you out.

Link to User Manual
View full details
Total Price:
$37.99