Bids Are Invited For Lens Tube ( 1 Inch Thread Depth ) - Stackable Lens Tubes For 3 Inch Optics, Inner Diameter 3.01 Inch, Outer Diameter 3.20 Inch, 1 Inch Thread Depth, 1 Inch Deep ( Length ) , Threaded Bore Accepts 3 Inch ( 76.2 Mm ) Diameter Optics, Black Anodized. , Lens Tube ( 2 Inch Thread Depth ) - Stackable Lens Tubes For 3 Inch Optics, Inner Diameter 3.01 Inch, Outer Diameter 3.20 Inch, 2 Inch Thread Depth, 2 Inch Deep ( Length ) , Threaded Bore Accepts 3 Inch ( 76.2 Mm ) Diameter Optics, Black Anodized. , End Cap For 3 Inch Lens Tubes - It Protects Delicate Optical Assemblies From Dust When Not In Use, End Cap Centre Has A Drill Point To Facilitate Custom Machining, Has External Thread Of Diameter 3.035 Inch, Outer Diameter 3.20 Inch, Black Anodized , Retaining Rings For 3 Inch Lens Tubes - Retaining Ring For 3 Inch Lens Tubes, Ring Diameter 2.81 Inch, External Thread Diameter 3.035 Inch, Thickness 0.10 Inch, Retaining Rings Are Used To Stack Multiple Optics Inside The Lens Tubes, Slotted For Use With Spanner Wrenches, Black Anodized. , Spanner Wrenches - For 3 Inch Lens Tubes, Outer Diameter- 2.81 Inch, Slots In One End Compatible With 3 Inch Retaining Ring, For One-Handed Adjustment Of 3 Inch Retaining Rings, Hollow Design Enables Retaining Rings To Be Adjusted And Installed Without Obscuring Beam Path, Knurled Handle For Improved Grip. , Lens Tubes Without External Threads - Length 3 Inch, Internal Diameter 3.01 Inch, External Diameter 3.2 Inch, Threaded Bore Of Size 3.035 Inch Throughout The Length, It Accepts 3 Inch Dia Optics, Optics Can Be Accessed From Both Ends, It Does Not Have Any Lip Or External Threading At Any End, Black Anodized. , Lens Tube Coupler - Coupler With 3.035 Inch External Thread, Connect To Internally Threaded 3 Inch Components On Both Sides, Has Two Locknuts Of 3.25 Inch Diameter And 0.11 Inch Width With 3.035 Inch Internal Thread, Locknuts Have Knurled Edges, Black Anodized. , 2 Inch Lens Tube With Side Access Ports - 2 Inch Lens Tube With Side Slot, Tube Length 3 Inch, Internal Diameter 2.01 Inch, External Diameter 2.2 Inch, It Provides Fast And Easy Means For Assembly And Adjustment Of Optics Without Disassembling The Setup, Has Rotatable Slip Shield To Protect Optics From Debris While Keeping Unwanted Light Out, Black Anodized. , 3 Inch Lens Tube With Side Access Ports - 3 Inch Lens Tube With Side Slot, Tube Length 3 Inch, Internal Diameter 3.01 Inch, Xternal Diameter 3.20 Inch, It Provides Fast And Easy Means For Assembly And Adjustment Of Optics Without Disassembling The Setup, Has Rotatable Slip Shield To Protect Optics From Debris While Keeping Unwanted Light Out, Black Anodized. , Extension Tubes For 3 Inch Optics - 6 Inch Long, 3.20 Inch External Diameter, 3.01 Inch Internal Diameter, Extension Tube Enables Longer Distances Between Optical Components, One End Of The Extension Tube Internally Threaded ( Dia 3.035 Inch ) While The Other End Has An External Protruded Thread ( Dia 3.035 Inch ) To Accept 3 Inch Stackable Lens Tubes, Black Anodized. , Rotating Adjustable Length Lens Tube - Allows Fine Control Between Optical Components Within A 3 Inch Lens Tube System - Specifically For Fine Tuning The First And Last Lenses In The Lens Tube System, Inner Diameter 3.01 Inch, Outer Diameter 3.20 Inch, 0.81 Inch Travel, Black Anodized. , Iris Diaphragm - Ring-Activated Iris Diaphragm, Diameter 2.4 Inch, Thickness 0.49 Inch Including 0.13 Inch Thick Protruded External Thread, Variable Aperture Diameter 1 - 25 Mm, Outer Ring Rotates For Aperture Size Adjustment, Has Internal And External Thread Of 2.035 Inch Diameter, Ring Actuator Turns Smoothly And Can Be Locked Into Position With A Setscrew, Black Anodized. , Fixed Lens Tube Mounts - Slip Ring Type - Clamps The Outer Diameter Of 3 Inch Lens Tubes, Lens Tube Slip Ring Features A Tap For Post Mounting, M4 Mounting Hole For Use With ½ Inch Post, Secures Lens Tube System With A Locking Screw, Inner Diameter 3.21 Inch, Locking Screw Hex Size 4 Mm, Black Anodized. , Fixed Lens Tube Mounts - Clamp Type - Clamps Outer Diameter Of 3 Inch Lens Tubes, Hinged For Easy Drop-In Installation, 3-Point Contact Provides Stable Mounting, Lens Tube Clamp Has A M4 Counter-Bore On The Bottom Of The Clamp That Enables Post Mounting With A Cap Screw, Inner Diameter 3.21 Inch, Locking Screw Hex Size 2 Mm, Black Anodized. , External 2 Inch Lens Tube To Nikon F-Mount Adapter - Nikon F-Mount Compatible, Spring-Actuated Lock Release Lever, Adapts Easily To Internally 2-Inch Threaded Components, Offers A Convenient Way To Use Nikon F-Mount Optics With 3 Inch Threaded Components Such As Lens Tubes, Black Anodized. , External 3 Inch Lens Tube To Nikon F-Mount Adapter - Nikon F-Mount Compatible, Spring-Actuated Lock Release Lever, Adapts Easily To Internally 3-Inch Threaded Components, Offers A Convenient Way To Use Nikon F-Mount Optics With 2 Inch Threaded Components Such As Lens Tubes, Black Anodized. , Lens Tube Adapter - M36 X 1.5 To 2 Inch Thread - Internally And Externally Threaded To Accept Mating Threads Of The Lens Tubes, Adapter Has M36 X 1.5 External Thread And Internal Thread For 2-Inch Lens Tube, Black Anodized. , Metric Post - Metric, 12.7 Mm Diameter, Length 100 Mm, Constructed Using Non-Magnetic Hard Coated Aluminum, Black Anodized Hard Coating, One M4 Tapped Hole On Top And One M6 Tapped Hole At Base, Black Anodized. , Post Holder - For 12.7 Mm Diameter Post, Length 100 Mm, Aluminum, Spring-Loaded, With Hex-Locking Thumbscrew 1 / 4-20 ( M6 ) Tapped Hole On Bottom, Black Anodized. , Flexure Clamping Base - Base For Mounting 12.7 Mm Diameter Posts, 12.8 Mm Dia Double Bore, 50.8 Mm X 75.0 Mm X 12.1 Mm, Bottom Relief Cut Ensures Stable Mounting, Black Anodized. Total Quantity : 1
