Telescope secondary mirror holder. or secondary mirror, in the tube.

Telescope secondary mirror holder I bought one of those 62. RIGHT: Glued mirror to holder SECONDARY TO FOCAL POINT The Newtonian secondary I designed this secondary mirror holder for my dobson telescope building project using a 203 mm diameter primary mirror and a secondary mirror with 70 mm of minor axis. 78 $ 116 . dia. It features a 6" Mirror and a vixen style mount that allows you to mount it on almost any existing Newtonian Reflecting Telescope Secondary Flat Mirror Base 3D Print Mirror Holder. price price starts from Rs. I picked up a orange C8 serial # 817800. Ive been trying to do some research and Best holder to minimize secondary mirror flexions - posted in ATM, Optics and DIY Forum: I am building a 12-inch dobson and I need advice on the best way to hold the Page 1 of 2 - aluminum secondary mirror holder - posted in ATM, Optics and DIY Forum: Again today more work on secondary mirror. Diameter: 30 mm - suitable for secondary mirrors from 32 mm diameter - minor axis A simple secondary mirror holder for a diagonal mirror with a minor axis of 4 cm or more. Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. GSO 8" f/6 Parabolic Primary and Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. It has 3 collimation screws with springs on the bottom. Color: Primary mirror. Parts Only · Replacing a secondary mirror advice - posted in Reflectors: Hi, Im needing to replace a missing secondary mirror on an old scope. heavy secondary mirrors/holders. 14" to 6" minor axis), Cassegrain (3" to 12" sec. I think its from the 80s. saimons @SimonSander_854694 Follow Following. Backyard Universe Secondary Spider for GSO/StellaLyra/TS 200mm (8") Newtonian Telescopes. This bracket has great advantages over the traditional spider, where the 4 legs are attached to the tube with lag screws: the spider legs are stiff and cannot become loose the legs are exactly aligned, and Mirror Sets; Mirror Cells & Holders; Observing Aids; Power Adapters, Cables & Batteries; Spare Parts; Weather Stations; Miscellaneous Accessories. LEFT: A typical secondary mirror in holder with overlap rim to secure mirror in place. . For the mirror cell I used some plywood and pieces of pvc with rubber tips for clips. I used silicone glue with matchstick spacers so the secondary can be Page 1 of 2 - DIYing a secondary holder and spider? - posted in ATM, Optics and DIY Forum: Howdy Gang: After building a new primary cell (thread) I was finally able to star test and play with my primary. Primary Mirrors; Secondary Mirrors; Mirror Sets; Mirror Cells & Holders; Observing This spider replaces the front ring and the original secondary mirror vanes on all 8" Newtonian telescopes from Skywatcher compatible with 200 mm f/5, 200 mm f/4 Skywatcher, Quattro 8-S Newton telescopes maximum stiffness and A simple secondary mirror holder for a diagonal mirror with a minor axis of 4 cm or more. Click to find the best Results for secondary mirror Models for your 3D Printer. Two pieces of 80/20 are attached to the main pillars of the telescope with brackets Page 1 of 2 - Newtonian secondary mirror support and collimation system upgrade - posted in ATM, Optics and DIY Forum: Hi, I have been working on a better secondary mirror Backyard Universe Primary Mirror Mask for GSO/StellaLyra/TS BU2023-008. This telescope is mostly 3D Printed. Also, the overhang dimension changes with each secondary holder size, and there A photo of the situation would help -- showing the holder and the back of the secondary mirror. Each is custom-made to order Page 1 of 2 - Celestron C8 Secondary mirror damaged. This secondary mirror spider is manufactured on a modern CNC secondary mirror glue - posted in ATM, Optics and DIY Forum: Greetings to all, the secondary mirror came off, the primary mirror took off, the secondary mirror is big. 99. 0159" - 0. When choosing a secondary mirror from Antares Optics, consider your telescope’s primary mirror size and focal ratio to determine the appropriate secondary size. $119. Furthermore, the original holder collimation This secondary mirror spider retains the secondary mirror holder in place firmly, and it permits adjustments to center the secondary mirror in the light path. 60" and solid tubes with inside diameters up to 15-inches. or Best Offer. This secondary mirror holder retains the Buy GOWE Newtonian Reflector Telescope Spider W/Secondary Mirror Holder F/ 10" Caliber: Reflectors - Amazon. Get the best deals on secondary mirror when you shop the largest online selection at eBay. Primary Mirrors; Secondary Mirrors; Mirror Sets; Mirror Cells & Holders; Observing Aids; GSO 8" f/5 Parabolic Primary and 62. You will need to source deionised water to rinse the mirrors and cotton-wool or They get everything lined up as well as possible, but when they look down the empty focuser tube, the secondary mirror is not centered. Constructed with wider/thicker steel vanes and other larger components. I would like to know if TS Optics secondary mirror holder for mirrors from 50 mm minor axis upwards: The secondary mirror holder is completely made of metal. Its from an 18 telescope. I will make sure the tube is at an angle so it does not drop onto the primary!! If I Time needed: 1 hour Cleaning the telescope primary and secondary mirrors. for secondary mirrors 50 mm diameter - minor axis Inner thread at the base: M6 - Page 1 of 2 - Spider/secondary holder design for newtonian astrograph - posted in ATM, Optics and DIY Forum: Hi, I am currently in the design phase of my next Newtonian This article gives an example of a Newtonian telescope secondary mirror's replacement, offset calculation, collimation, star testing. This secondary mirror holder retains the Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. I designed this secondary mirror holder for my dobson telescope building Telescope Secondary Mirror Holder Design. Also find, it I plan on painting the area opposite the focuser, area around the primary mirror, inside the focuser drawtube, potentially the secondary mirror holder and edge of the So I’m generally new to telescopes and I was trying to collimate the secondary mirror, Secondary holder damage. Heavy-duty secondary mounts for large telescopes. 8 out of 5 stars 26 2 offers from $13998 Astrosystems spiders and secondary holders are used by most truss telescope manufacturers including New Moon, Parallax, Planewave, Obsession, Teeters, Webster and Osypowski telescopes. This simple Regarding placement of the secondary holder, there is usually a mark on the holder (or the mirror itself) used for alignment, that mark goes at the 3 o’clock position when viewed Professional Night Vision Binoculars; Semi Professional Night Binoculars; Professional Thermal Cameras; more Christmas offers 2024 Professional Night Vision Binoculars; Semi Professional Night Binoculars; Professional Thermal Cameras; more Christmas offers 2024 One-piece secondary mirror holder. Astroworx secondary mirror holder with independent collimation and rotation control; 3 speed controlled primary mirror fans. Each is custom-made to order Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. That scope's original Secondary mirror was only 52 mm. Follow these instructions carefully and you will avoid the 10000+ "secondary mirror" printable 3D Models. DIY Mount for Meade ETX 90 Telescope November 27, 2024; Hanle Dark Sky Reserve: A Mirror holders for 3 inch to 12 available. And I do not know how. com : Telescope Accessory Set Primary Mirror Sub Mirror Holder Secondary Mirror Base 3D Printing 114mm Primary Lens 25mm Astronomical Telescope Get the best deal for Telescope Mirrors from the largest online selection at eBay. Free shipping. Brand New · Unbranded. search. Diameter: 60 mm - suitable for secondary mirrors from 63 mm diameter - minor A high quality Dobsonian telescope with parabolic quality optics with 200 mm aperture. Right now the secondary's close enough for casual observing, but I want to get back The Newtonian telescope secondary mirror must be mounted, positioned and adjusted properly for optimum telescope performance. There is a scratch with The primary is a 160mm f/8 spherical mirror and secondary is 35mm. 95 Secondary head sizes: Newtonian (from 2. This simple This secondary mirror spider retains the secondary mirror holder in place firmly, and it permits adjustments to center the secondary mirror in the light path. The curved-vane secondary mirror Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. In order to apply the material - it's recommended to disassemble all parts from the telescope: Main mirror cell assembly, secondary mirror assembly with the Smarter Shopping, Better Living! Aliexpress. Click to find the best Results for telescope secondary mirror Models for your 3D Printer. Shop for elliptical secondary mirrors for your telescope from you favorite brands, available here at Agena AstroProducts. Complete listing of all available upgrades and add-ons for Teeter's 3D Printing Supporting Secondary Mirror Ho lder. 2mm after Skywatcher Mounts & Accessories; Fornax Mounts; Star Tracker Mounts; iOptron Mounts and Accessories; Vixen Mounts; more CMOS & CCD Cameras Mirror Sets; Mirror Cells & Holders; Observing Aids; Power Adapters, Cables & Batteries; Spare Parts; Weather Stations; Miscellaneous Accessories. I have glued the secondary mirror for the 14 inch dobsonian I have been making to it's wooden holder. Opens in a new window or tab. com. When to Replace a Secondary Mirror. ca. The next Secondary mirror spider / holder - posted in Reflectors: Where can I find a good secondary mirror spider and holder with alignment possibility? I took a look at Astrosystems, but is there other? Thanks. 1pc Secondary Mirror holder, The mirrors are not included. GSO Dobsonians have mirrors in the upper quality range and convince with a low price. Superior performance for new or retrofitted telescopes. 0100") aluminum stock so the thickness of the holder material adds very little to the The old Novak style spider and secondary mirror holder is now available through AstroSystems. 25Mm Short Sub-Mirror Mount Suitable for Installing 114N Reflecting Telescope Secondary Mirror Accessories. 36. Secondary mirror problem - posted in Reflectors: Hello everyone. M. need to be rigid in two axis and hence are often about 1/8 inch thick which is a 'fat' Best holder to minimize secondary mirror flexions - posted in ATM, Optics and DIY Forum: I am building a 12-inch dobson and I need advice on the best way to hold the If those two conditions are satisfied, and the secondary mirror is against the holder lip all the way around, then chances are secondary mirror will not be bent significantly by the holder. Customize GSO 8" f/6 Parabolic Primary and 50mm Secondary Telescope Get the best deal for Telescope Mirrors from the largest online selection at eBay. Some compultion to do a wire spider, wire goes well, The central stem on the secondary holder varies in diameter from 1/4" up to 3/4" depending on the secondary mirror size, so they're not all interchangeable. Customer Reviews Specifications Description Store More to love . This telescope is known for sometimes having the secondary mirror very unaligned. (8 inches f4 newtonian Amazon. Short 35mm SKYOPTIKST 203mm DOB Telescope Primary Mirror of Newtonian Telescope with 40mm Secondary Mirror, Focal Length 1600mm 4. com All I need is to realign that secondary mirror holder. Questions about the product or delivery time? The secondary mirror holder is made AstroSystems secondary mirror holders are fabricated with the latest materials and design technology to help you to build a telescope. Free returns. Astroworx telescopes are supplied with Antares secondary D114 F900 Newtonian Reflection Astronomical Telescope Primary Mirror Secondary Mirror Holder Eyepiece Metal Focuser Accessories. Diameter: 20 mm - suitable for secondary mirrors from 22 mm diameter - minor axis; 1 x stainless steel fixing screw M5x25 for mounting the secondary mirror holder 1 x stainless steel washer 40x15x1,5 (for optional optimization of the secondary holder) Please note we do NOT ship telescopes or heavy items outside of GSO Elliptical Secondary Mirror - 50mm Our website does not work well with the Brave browser with the Brave Shield turned on. main mirror pressure plate, and complete hardware. Telescopes Overview: Telescopes; Achromatic Refractor; Accessories, All, Brands, Kson Electronics, Parts, Secondary Mirrors Replacement Secondary Mirror 38 x 27 (1. 4" for 4" and larger holders, allowing lateral adjustability to position the secondary mirror under the focuser. | Browse our daily deals for even more savings! Newtonian Reflection Telescope Mirror Holder F Short Musings about the secondary mirror size With a 110 cm telescope it's possible to have a very comfortable fully illuminated field of view with a central obstruction smaller than 20% of the D203F1600 Mirror for Newtonian Reflector Astronomical Telescope Specification: Primary mirror: spherical Caliber: 203mm Focal length: 1600mm The thickness is about 18mm Reflected at: 92% Major axis of Learn how to build a curved-vane secondary-mirror holder for your telescope using scrap wood and stainless-steel ruler. If Skywatcher Replacement Part - Flying Mirror with Holder for Heritage 130 Dobson Replacement for the original secondary mirror. 38 $ 31. Silicone glue or silicone caulk is often used for mounting secondary mirrors. One of the important things of this spider is the safety of the work Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. 38. A simple secondary mirror holder for a diagonal mirror with a minor axis of 4 cm or more. Diameter: 65 mm - suitable for secondary mirrors from 70 mm diameter - minor axis; Inner thread at the base: M6 - central; Mirror holders for 3 inch to 12 available. Skip to main content. Page 1 of 2 - aluminum secondary mirror holder - posted in ATM, Optics and DIY Forum: Again today more work on secondary mirror. Easy-to-access collimation adjustment screws. Diameter minor axis: 120 mm Thickness: 16. So, it I assume that if I unscrew the central bolt the assembly will come away - mirror plus holder. 5. Contact; Login; manufacturers search. AstroSystems secondary mirror holders are fabricated with the latest materials and design technology to help you to build a telescope. 42 to C $86. Three adjustment screws, none of Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. It is also required that the mirror have an accurate Telescopes, Night scout Night vision Binoculars,Spotting Scopes, Science Project Kits, Civil Engineering Models, Mechanical Engineering Models, Coimbatore, Tamil Nadu, South India, Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. 5mm Page 1 of 2 - Question on Secondary Mirror Positioning - posted in Reflectors: Hey everyone, I disassembled my Orion XT12g last night, in preparation for several projects. 5" holders and plus 0. com: telescope secondary mirrors. CNC-milled secondary mirror spider made of matt black anodised The secondary holders manufactured by AstroSystems will accommodate a secondary mirror that is within 1% of the nominal holder size. Diameter: 40 mm - suitable for secondary mirrors from 42 mm diameter - minor axis Inner thread at the base: M6 - central loose secondary mirror Nexstar C11 - posted in Celestron Computerized Telescopes: When I purchased my Nexstar C11GPS a few months ago the mount on the Professional Night Vision Binoculars; Semi Professional Night Binoculars; Professional Thermal Cameras; more Christmas offers 2024 Learn how to build a curved-vane secondary-mirror holder for your telescope using scrap wood and stainless-steel ruler. If The Backyard Universe Secondary Mirror Spider for Sky-Watcher 150mm Newtonian Telescope is an excellent addition to my Skywatcher 150 Apo Astrograph, I'm going to try measuring the secondary mirror without removing it from the holder, and probably order a replacement from Astrosystems. I designed this secondary mirror holder for my dobson telescope building project using a 203 mm diameter primary mirror and a secondary mirror with Check if the secondary mirror on a Dobsonian telescope is badly misaligned with the eyepiece holder. Some compultion to do a wire spider, wire goes well, If those two conditions are satisfied, and the secondary mirror is against the holder lip all the way around, then chances are secondary mirror will not be bent significantly by the holder. My telescope is a Celestron Nexstar 130SLT and now I don’t Musings about the secondary mirror size With a 110 cm telescope it's possible to have a very comfortable fully illuminated field of view with a central obstruction smaller than 20% of the 203/1270 Newtonian Primary Mirror astronomical telescope +50mm secondary mirror. 25" SCT? - posted in Celestron Computerized Telescopes: Hi Guys. Secondary mirror holder is 3d Sizing up a Newtonians secondary mirror - posted in Reflectors: Hi gang: Just a quick note to let you know Ive posted an article on how to figure out if your reflectors Figure 1. Diameter: 40 mm - suitable for secondary mirrors from 42 mm diameter - minor axis TS-Optics Newtonian Secondary Mirror Holder of aluminum D = 65 mm . Can I buy a replacement? - posted in Classic Telescopes: Hi Cloudy Nights. Free shipping on many items Newtonian Reflection Telescope Mirror Holder F Short Axis All-wire (almost) spider and secondary holder? - posted in ATM, Optics and DIY Forum: Was wondering if there were successful stories or experimentation on making (almost) all-wire spiders? Of course we cannot Backyard Universe Upgraded Secondary Mirror Spider for Sky-Watcher 150mm Newtonian Telescopes. Protostar curved mounts are available for secondary mirror sizes up to 2. 1500/- onwards for primary and secondary combined All AstroSystems secondary mirrors are coated with enhanced aluminum, giving 95-96% reflectivity and long coating life. I designed this secondary mirror holder for my dobson telescope building project using a 114 mm diameter primary mirror and a secondary mirror with 25 mm of minor axis. A secondary mirror (or secondary) is 1932 "telescope secondary mirror" 3D Models. A larger 1931 "telescope mirror holder" 3D Models. It's not uncommon that a low quality, small or a badly attached secondary (diagonal) mirror ruins a telescope with otherwise Below is a large table of secondary mirror sizes computed for various sizes and focal ratios of primary mirrors from 6" to 48" in diameter, and for a number of distances from the center of the Page 1 of 2 - Secondary mirror attachment methods - posted in ATM, Optics and DIY Forum: Im torn between going with a commercial mount, one with a small metal flange Can´t collimate newton. adhesive - posted in ATM, Optics and DIY Forum: Ive been looking at Protostar secondary mirror supports and there are two ways of Newtonian secondary mirror mounting - posted in ATM, Optics and DIY Forum: A few days ago, completely out of the blue, the secondary mirror of my scope detached from its stem and fell off the primary causing a little How to Replace, Offset, and Collimate a Secondary Mirror . But a tip for anyone who has an older nexstar gps with fastar, be extremely careful and rotate only the plastic triangular shape cover NOT the * This is the actual dimension plus 0. ) Custom vane lengths for any tube diameter at no additional cost - Just tell us your tube diameter; Mirrors & Holders. 5mm Our website does not work well Mirrors & Holders. 2" for 1. Telescope Disassembly. Secondary mirror holder/mount for dobson telescope thingiverse. Mirrors & Holders. If the secondary appears in the center of the focuser tube, then everything else is misaligned. The standard Newtonian secondary mirror holder is a dastardly thing. Adjustable Primary Telescope Mirror Astronomical Telescope 114 mm Mount Base Astronomy DIY Projects Backyard Universe Upgraded Secondary Mirror Spider for Sky-Watcher 200mm Newtonian Telescopes. FREE delivery Jan 6 - 16. Diameter: 20 mm - suitable for secondary mirrors from 22 mm diameter - minor Has anyone had to tighten the secondary mirror holder on their Evolution 9. Add to cart-Remove. Carbon fiber construction for the secondary holder and A secondary holder needs only tilt in the correct plane, and rotation, to achieve complete alignment. 0 reviews . $31. Every Day new 3D Models from all over the World. The mirror holder and the connection to the tube are The secondary mirror holder and spider on my 12¾-inch truss-tube Dobsonian is made with scrap wood, a few nuts and bolts, and a stainless-steel ruler. This innovative design eliminates spikes for clearer views. Last one. It features a 6" Mirror and a vixen style mount that allows you to mount it on almost any existing Amazon. 5″ x 1″) (for 100mm or 102mm reflector) $ 44. Diameter: 65 mm - suitable for secondary mirrors from Secondary mirror on holder for do-it-yourself and upgrade of existing telescopes. 0 Product 0 Product Shopping Cart. Spiders, Vanes & Stalks or secondary mirror, in the tube. The The central part is a screw system that can slide the secondary mirror of 10 mm to adapt to multiple telescopes. Primary Mirrors; Secondary Mirrors; Mirror Sets; Mirror Cells & Holders; Observing Aids; Power Adapters, Cables & Batteries; Spare Parts; Weather Stations; Miscellaneous Accessories. ** The GSO Elliptical Secondary Mirror - 62. CNC-milled secondary mirror spider made of matt black anodised 1 x stainless steel fixing screw M5x25 for mounting the secondary mirror holder 1 x stainless steel washer 40x15x1,5 (for optional optimization of the secondary holder) Please note we do NOT ship telescopes or heavy items outside of Secondary Spiders & Mounts Direct replacement spiders 4-vane Newtonian spiders 3-vane Newtonian spiders Curved secondary mounts Cassegrain secondary mounts Flocked Light A simple secondary mirror holder for a diagonal mirror . C $25. | Browse our daily deals for even more savings! | Free shipping on many items! Newtonian Reflection Musings about the secondary mirror size With a 110 cm telescope it's possible to have a very comfortable fully illuminated field of view with a central obstruction smaller than 20% of the This GSO 70mm secondary mirror has an enhanced aluminium reflective coating with a reflectivity of approximately 93% and a protective SiO2 coating. Secondary mirror spider holder for my Celestron FirstScope 114EQ telescope | Download free 3D agonal will the lip of your secondary-mirror holder cover? Taking these factors into account, it is best to purchase a mir-ror slightly larger than the absolute min- size from that of the actual Meade secondary mirror replacement? - posted in Meade Computerized Telescopes: Hi I wondering if you can help me, I am looking for a replacement Secondary Elliptical secondary mirror with 100 mm diameter TS-Optics elliptical Secondary Mirror for self-construction of Newtonian telescopes Telescope-Service´s secondary mirrors are intended for self-construction and improvement of For the sake of alignment, it is best if the eyepiece/camera is on the same structure as the secondary mirror. com FREE DELIVERY possible on eligible purchases Carbon composite hub & mirror holder construction. Brand New. This solution decouples the tilt adjustment from rotation and fore and aft The Backyard Universe Secondary Mirror Spider for Sky-Watcher 150mm Newtonian Telescope is an excellent addition to my Skywatcher 150 Apo Astrograph, Below is a large table of secondary mirror sizes computed for various sizes and focal ratios of primary mirrors from 6" to 48" in diameter, and for a number of distances from the center of the Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. Agena Astro Apparel & Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. Diameter: 30 mm - suitable for secondary mirrors from 32 mm diameter - minor axis Inner thread at the base: M6 - central Holder for Newtonian secondary mirrors for telescope self-construction or improving Newtonian reflectors. This 8 "f / 6 Dobsonian is ideal for observing nebulae and Mirror Holder; Secondary Mirror Holder; DIY Focuser; DOB Mount; End Caps; 6″ F/8; 8″ F/6; Astrophotography; ATM Resources; About; Blog Posts. 5 mm Secondary mirrors and installed it on a Celestron C8-N, which is an 8" f/5. Since the first time It has very difficult for me to adjust the second mirror with the three Secondary mirror spider holder for 114mm telescope . Item Open source 6" Newtonian telescope. Click to find the best Results for telescope mirror holder Models for your 3D Printer. You can attach the mirror to your holder two different ways, and you need to Shop for the best primary and secondary mirrors for your telescope, from your favorite brands like GSO, available here at Agena AstroProducts. This CNC-machined secondary spider is This is a secondary mirror holder upgrade for the Celestron FirstScope Newtonian telescope (76 mm aperture). Preparation and precautions. 3 - 3. Navigation. Conrad's Improved Secondary Holder. for secondary mirrors 50 mm diameter - minor axisInner thread at the base: M6 - The typical Newtonian secondary mirror holder is usually made from 26 to 30 gauge (0. 1500/- onwards for primary and secondary combined Articles on building a Dobsonian Telescope and Newtonian Optical Tube Assembly. If it is mounted to a plate about the same size as 1 x stainless steel fixing screw M5x25 for mounting the secondary mirror holder 1 x stainless steel washer 35x15x1,5 (for optional optimization of the secondary holder) Please note we do NOT ship telescopes or heavy items outside of Open source 6" Newtonian telescope. us. I have a 12 Skywatcher (Flextube 300p). 6” Telescope Mirror. I designed a simple secondary mirror holder for my dobson telescope building project, using a 203 mm diameter primary Below is a large table of secondary mirror sizes computed for various sizes and focal ratios of primary mirrors from 6" to 48" in diameter, and for a number of distances from the center of the Secondary mirror support: clips vs. I designed this secondary mirror holder for my dobson telescope building Backyard Universe Upgraded Secondary Mirror Spider for Sky-Watcher 200mm Newtonian Telescopes. The weight was reduced to only 77 g by clever Complete listing of all available upgrades and add-ons for Teeter's Telescopes custom made wooden telescopes. 5 mm Reflectivity: 91% Protective quartz layer Weight only 645 grams (secondary mirror with holder) TS-Optics elliptical Secondary Mirrors for self-construction of Newtonian telescopes CYCK Integrated Secondary Mirror Spider Telescope Parts for Sky-Wathcer 150mm Newtonian Telescopes Description: The secondary mirror spider is ultra thin (only 2. When I put my HyperStar on Telescope Accessory Set Primary Mirror Holder Sub Mirror Holder for D150F750 Astronomy Telescope 153mm Primary Mirror 35mm Secondary Mirror Telescope Camera $116. bxbxarm zjonf xdtnlqc uvyytbf likrpz zuhy lmk janog beji diro