In stock (20) SKU: 1.25PARFOCAL4SET
365ASTRONOMY
365Astronomy 1.25" Parfocal Eyepiece Rings / Parfocalizing Rings - Set of Four
Parfocalizing Rings are being used for several purposes. If you would like to match the focal position of each of your eyepieces or to match it with your digital camera, so that you would not have to refocus when swapping...
In stock (10) SKU: 2PARFOCAL1ONLY
365ASTRONOMY
365Astronomy 2" Parfocal Eyepiece Ring / Parfocalizing Ring - ONE PIECE ONLY
Parfocalizing Rings are being used for several purposes. If you would like to match the focal position of each of your eyepieces or to match it with your digital camera, so that you would not have to refocus when swapping...
In stock (20) SKU: 2PARFOCAL4SET
365ASTRONOMY
365Astronomy 2" Parfocal Eyepiece Rings / Parfocalizing Rings - Set of Four
Parfocalizing Rings are being used for several purposes. If you would like to match the focal position of each of your eyepieces or to match it with your digital camera, so that you would not have to refocus when swapping...
In stock (10) SKU: VSH36516
365ASTRONOMY
365Astronomy Adjustable Lens Tool
365Astronomy Adjustable Lens Tool for the removal and installation of retaining rings in optical insruments
Two in one tool: one end offers a tool with two pinpoint ends to be used with retaining rings that have got two...
In stock (5) SKU: 365Bahtinov105-150
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 105-150mm
365Astronomy Bahtinov Telescope Focusing Mask 105-150 for camera lenses with an outer diameter between appr. 100mm to 150mm and telescope tubes between appr. 100mm outer diameter and appr. 160mm inner
In stock (5) SKU: 365Bahtinov125-180
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 125-180mm
365Astronomy Bahtinov Telescope Focusing Mask 125-180 for telescope tubes between appr. 120mm outer diameter and appr. 190mm inner
In stock (5) SKU: 365Bahtinov150-200
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 150-200mm
365Astronomy Bahtinov Telescope Focusing Mask 150-200 for telescope tubes between appr. 145mm outer diameter and appr. 210mm inner
In stock (5) SKU: 365Bahtinov175-220
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 175-220mm
365Astronomy Bahtinov Telescope Focusing Mask 175-220 for telescope tubes between appr. 170mm outer diameter and appr. 230mm inner tube diameter
In stock (3) SKU: 365Bahtinov195-240
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 195-240mm
365Astronomy Bahtinov Telescope Focusing Mask 195-240 for telescope tubes between appr. 190mm outer diameter and appr. 250mm inner tube diameter
In stock (5) SKU: 365Bahtinov215-260
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 215-260mm
365Astronomy Bahtinov Telescope Focusing Mask 215-260 for telescope tubes between appr. 210mm outer diameter and appr. 270mm inner tube diameter
In stock (4) SKU: 365Bahtinov250-290
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 250-290mm
365Astronomy Bahtinov Telescope Focusing Mask 250-290 for telescope tubes between appr. 245mm outer diameter and appr. 300mm inner tube diameter
In stock (5) SKU: 365Bahtinov290-340
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 290-340mm
365Astronomy Bahtinov Telescope Focusing Mask 290-340 for telescope tubes between appr. 285mm outer diameter and appr. 350mm inner tube diameter
In stock (10) SKU: 365Bahtinov65-100
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 65-100mm
365Astronomy Bahtinov Telescope Focusing Mask 65-100 for camera lenses with an outer diameter between appr 60mm to 100mm and telescope tubes between appr. 60mm outer diameter and appr. 110mm inner diameter
In stock (5) SKU: 365Bahtinov85-120
365ASTRONOMY
365Astronomy Bahtinov Focusing Mask 85-120mm
365Astronomy Bahtinov Telescope Focusing Mask 85-120 for camera lenses with an outer diameter between appr 80mm to 120mm and telescope tubes between appr. 80mm outer diameter and appr. 130mm inner diameter
In stock (2) SKU: Lac-Bahtinov250
Lacerta
Bahtinov Focusing Mask 250
Bahtinov Telescope Focusing Mask 250 for telescopes with a lens diameter usually around 250mm (dew cap = 289mm, such as Celestron or SkyWatcher Newton)The LACERTA Bahtinov Focusing Masks are made from a lightweight,...
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SKU: ParFocRing1
Lacerta
Parfocal Ring for 1.25-inch Eyepieces - One piece only
Parfocalizing Rings are being used for several purposes. If you would like to match the focal position of each of your eyepieces or to match it with your digital camera, so that you won't have to refocus when swapping...
In stock (6) SKU: QuiqLite-PRO-Red-TACRW
QuiqLite
QuiqLite PRO Dual LED Hands-Free Torch TACTICAL RED - WHITE
WE NOW SELL THIS NEW RED - WHITE VERSION, THAT IS MUCH EASIER TO USE WHEN DOING ASTRONOMICAL OBSERVATIONS! IN STOCK NOW!The most important feature is that you don't have to switch on the white LED to get to the red....
In stock (2) SKU: 75169
Vixen
Vixen 25169 GP60 to 45AD - Mount Base to SXG Tripod Adapter
To attach older GP equatorial mounts, including the GP2, GPD2, and Great Polaris mounts, with 60mm base to the new SXG tripod or SXG half Pillar.
In stock (5) SKU: VSA36550
365ASTRONOMY
365Astronomy Female T-2 Dust Cover with Female M42 x 0.75 Thread - Full Metal Construction
This will protect your products such as correctors and field flatteners (any accessory with a male T-2 thread) from dust and dew when not in use on your scope. There are also plastic versions, but we found that it is somewhat...
In stock (5) SKU: VSA36549
365ASTRONOMY
365Astronomy Male T-2 Dust Cover with Male M42 x 0.75 Thread - Full Metal Construction
This will protect your products such as correctors and field flatteners (any accessory with a female T-2 thread) from dust and dew when not in use on your scope. There are also plastic versions, but we found that it is...
In stock (2) SKU: 2904010
Baader Planetarium
Baader Female T-2 Dust Cap with Female M42 x 0.75 Thread
This is a T-2 dust cover with external thread M42 x 0.75 , this will protect your products such as correctors and field flatteners (any accessory with a female T-2 thread) from dust and dew when not in use on your scope.
In stock (2) SKU: 2904000
Baader Planetarium
Baader Male T-2 Dust Cap with Male M42 x 0.75 Thread
This is a T-2 dust cover with external T-thread M42 x 0.75 , this will protect your products such as correctors and field flatteners (any accessory with a female T-2 thread) from dust and dew when not in use on your scope.
In stock (10) SKU: S317-TS-Ka125z
365ASTRONOMY
Eyepiece Cap for 1.25" Eyepieces - 31.8mm inner diameter
This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece when stored (from dust, particles of the foam etc.)Inner diameter: 31.8mmNO EYEPIECE...
In stock (7) SKU: S337
365ASTRONOMY
Eyepiece Cap for 1.25" Eyepieces - 36mm inner diameter
This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece when stored (from dust, particles of the foam etc.)It covers the top of the eyepiece. Comes...
In stock (10) SKU: S508
365ASTRONOMY
Eyepiece End Cap for 2" Eyepieces - 52mm inner diameter
This is certainly one of the most useful accessories for your telescope. It provides optimum protection for your telescope when stored (from dust, particles of the foam etc.)It covers the end of the eyepiece holder on your...
In stock (5) SKU: S317i
365ASTRONOMY
Eyepiece Holder Plug - Focuser Dust Cap 1.25"
This is certainly one of the most useful accessories for your telescope.It provides optimum protection for your telescope when stored (from dust, particles of the foam etc.)It covers the end of the eyepiece holder on your...
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SKU: T4050
365ASTRONOMY
Protective Eyepiece Case for Eyepieces with max 40mm diameter and 40-60mm length
Twistpack protective container for eyepieces. This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece, both when in use (from mud, dust, dew etc) as...
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SKU: T4060
365ASTRONOMY
Protective Eyepiece Case for Eyepieces with max 40mm diameter and 40-80mm length
Twistpack protective container for eyepieces. This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece, both when in use (from mud, dust, dew etc) as...
In stock (3) SKU: 4060
Teleskop Service
TS Optics Protective Eyepiece Case for Eyepieces with max 40mm diameter and 40-80mm length
Twistpack protective container for eyepieces. This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece, both when in use (from mud, dust, dew etc) as...
In stock (6) SKU: T5080
365ASTRONOMY
Protective Eyepiece Case for Eyepieces with max 50mm diameter and 70-110mm length
Twistpack protective container for eyepieces. This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece, both when in use (from mud, dust, dew etc) as...
In stock (4) SKU: T6580
365ASTRONOMY
Protective Eyepiece Case for Eyepieces with max 65mm diameter and 70-130mm length
Twistpack protective container for eyepieces. This is certainly one of the most useful accessories for your eyepiece. It provides optimum protection for your valuable eyepiece, both when in use (from mud, dust, dew etc) as...
In stock (5) SKU: SandT-MINIRW
Sky and Telescope
SkyLite Mini Red and White Flashlight with Brightness Control
SkyLight Mini Red and White Flashlight with Brightness ControlThe perfect astronomer's flashlight! Switch between white and red light; both have thumbwheel brightness control. Finally, your lifetime observing light. With 20...
In stock (10) SKU: VSH36501
365ASTRONOMY
365Astronomy Triple LED Red and White Headlight with Adjustable Angle Head
Triple LED Headlight with Adjustable Angle Head - One Red LED and Two White LEDsThe angle of the housing containing the LEDs can be adjusted to make viewing more comfortable (it may also save your observing friends from...
In stock (20) SKU: 365100
365ASTRONOMY
365Astronomy NightVision Red LED Flashlight
SkyWatcher Dual LED FlashlightBattery includedNight vision protecting red light for map reading and telescope operation Instant switch between Red and White Light (two pairs of LED's) Adjustable Brightness ...
In stock (2) SKU: 20741
SKYWATCHER
SkyWatcher Dual LED Flashlight
SkyWatcher Dual LED FlashlightBattery includedNight vision protecting red light for map reading and telescope operation Instant switch between Red and White Light (two pairs of LED's) Adjustable Brightness ...
In stock (3) SKU: 93588
CELESTRON
Celestron Flashlight, Night Vision
Celestron’s premium model for astronomy, using two red LEDs to preserve night vision better than red filters or other devices. Brightness is adjustable. Operates on a single 9 volt battery (included). 1-year Accessories...
In stock (5) SKU: VSA36503
365ASTRONOMY
Adapter from 2" to 1.25" with 2" Inner Filter Thread and Brass Compression Ring
Low profile adapter from 2" to 1.25" with 2" inner thread for your specialised deepsky, colour or other filter; with brass compression ringIMPORTANT! Please read this:this adapter is compatible only with...
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SKU: 2450050
Baader Planetarium
Allen wrench keyset/inch / precision quality w.ball-head
Allen wrench keyset / inch (precision quality w. ball-head) If you see that stock=0, don't worry, we may get it for you in most cases quickly. Please tell us what you are after, and we'll check with the manufacturer....
Ask about stock
SKU: 2450052
Baader Planetarium
Allen wrench keyset/metric/precision quality with ball-head
Allen wrench keyset / metric (precision quality with ball-head)Available on back order!Baader Product Group: 19...
In stock (4) SKU: 1905160
Baader Planetarium
Baader Silica Gel with color indicator, 125mml (orange color)
Silica Gel with colour indicator, 125 ml (orange color) These silica gel beads are perfect for protecting your fine scope or optical accessories (e.g. filters) from damaging moisture. The crystals will turn from orange...
In stock (3) SKU: 93653-A
CELESTRON
Celestron Visual Back 1.25
This accessory is used to adapt the threads on all Schmidt-Cassegrain models for use with 1.25" accessory items. This includes diagonals, straight through viewing with eyepieces, etc. This item comes standard with all...
In stock (4) SKU: TS-2zKonter
Teleskop Service
Parfocal Ring for 2-inch Eyepieces
2" Parfocalising Ring for 2" Eyepieces / CCD Locking RingThis adapter fits directly onto 2" barrels of eyepieces and adapters. It can be locked in place with three slug screws.This adapter is usually used to...
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SKU: FP501
Farpoint Astro
Parfocal Rings for 1.25-inch Eyepieces - Set of 4
Parfocalising Rings for 1.25" EyepiecesParfocalizing Rings are being used for several purposes.If you would like to match the focal position of each of your eyepieces or to mathc it with your digital camera, so that you...
In stock (3) SKU: PHOTO-Ronchi-10101151
Gerd Neumann Jr.
Photographic Ronchi 10L/mm
The lates version of this great accessory, the Ronchi eyepiece - Photographic version from Gerd Neumann jr. (the manufacturer of the famous high quality Astronomik filters) will help you to confirm the optical quality of...
Ask about stock
SKU: Lac-Bahtinov100
Lacerta
Bahtinov Focusing Mask 100
Bahtinov Telescope Focusing Mask 100 for telescopes with a lens diameter 80mm to 100mm (possibly even 110mm); dew cap = 116mm, as Synta and Celestron EDs 102/1000The LACERTA Bahtinov Focusing Masks are made from a...
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SKU: Lac-Bahtinov127
Lacerta
Bahtinov Focusing Mask 127
Bahtinov Telescope Focusing Mask 127 for telescopes with a lens diameter usually around 127mm (dew shield = 145 to 157mm, as Synta MAKs or Meade 127 ED APO) The LACERTA Bahtinov Focusing Masks are made from a lightweight,...
Ask about stock
SKU: Lac-Bahtinov150
Lacerta
Bahtinov Focusing Mask 150
Bahtinov Telescope Focusing Mask 150 for telescopes with a lens diameter usually around 150mm (dew cap = 181mm, such as a Celestron or SkyWatcher Newtonian) The LACERTA Bahtinov Focusing Masks are made from a lightweight, stur...
In stock (2) SKU: Lac-Bahtinov200
Lacerta
Bahtinov Focusing Mask 200
Bahtinov Telescope Focusing Mask 200 for telescopes with a lens diameter usually around 200mm (dew cap size = 236mm, as SkyWatcher Newton or C8)The LACERTA Bahtinov Focusing Masks are made from a lightweight, sturdy but s...
In stock (2) SKU: Lac-Bahtinov300
Lacerta
Bahtinov Focusing Mask 300
Bahtinov Telescope Focusing Mask 300 for telescopes with a lens diameter usually around 300mm (dew cap = 356mm, such as SkyWatcher Newton telescopes or similar)The LACERTA Bahtinov Focusing Masks are made from a lightweig...
In stock (3) SKU: FP400
Farpoint Astro
Farpoint Bahtinov Focusing Mask SMALL 2.5 - 4.5 Inch
FARPOINT Bahtinov Telescope Focusing Mask - SMALL - 2.5" - 4.5"with Flexible Fixing for Telescope Tubes with Tube or Dew Shield Diameter between 2.5" - 4.5" Focusing mask with variable fixing that hold the...
In stock (4) SKU: FP438
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 52mm FP438
Snap-in Bahtinov Mask for DSLR camera lenses with 52mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
In stock (10) SKU: FP439
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 58mm FP439
Snap-in Bahtinov Mask for DSLR camera lenses with 58mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
In stock (7) SKU: FP440
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 62mm FP440
Snap-in Bahtinov Mask for DSLR camera lenses with 62mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
In stock (7) SKU: FP441
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 67mm FP441
Snap-in Bahtinov Mask for DSLR camera lenses with 67mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
In stock (10) SKU: FP442
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 72mm FP442
Snap-in Bahtinov Mask for DSLR camera lenses with 72mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
Ask about stock
SKU: FP443
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 77mm FP443
Snap-in Bahtinov Mask for DSLR camera lenses with 77mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
In stock (5) SKU: FP444
Farpoint Astro
Farpoint dSLR Astrophotography Focusing Tool - Bahtinov Focusing Mask 82mm FP444
Snap-in Bahtinov Mask for DSLR camera lenses with 82mm filter threads.
The Bahtinov focus technique works best with longer focal lengths. It gets less useful with shorter focal lengths. The practical useful limit is...
In stock (4) SKU: FP401
Farpoint Astro
Farpoint Bahtinov Focusing Mask SMALL-MEDIUM 3.5 - 6.5 Inch
FARPOINT Bahtinov Telescope Focusing Mask - SMALL - MEDIUM 3.5" - 6.5"with Flexible Fixing for Telescope Tubes with Tube or Dew Shield Diameter between 3.5" - 6.5" Focusing mask with variable fixing that...
In stock (3) SKU: FP402
Farpoint Astro
Farpoint Bahtinov Focusing Mask MEDIUM 5.5 - 8.5 Inch
FARPOINT Bahtinov Telescope Focusing Mask - SMALL - MEDIUM 5.5" - 8.5"with Flexible Fixing for Telescope Tubes with Tube or Dew Shield Diameter between 5.5" - 8.5" IN STOCK NOW!Focusing mask with variable...
In stock (6) SKU: FP403
Farpoint Astro
Farpoint Bahtinov Focusing Mask LARGE 6.5 - 9.5 Inch
FARPOINT Bahtinov Telescope Focusing Mask - LARGE 6.5" - 9.5"with Flexible Fixing for Telescope Tubes with Tube or Dew Shield Diameter between 6.5" - 9.5" IN STOCK NOW!Focusing mask with variable fixing...
In stock (10) SKU: FP404
Farpoint Astro
Farpoint Bahtinov Focusing Mask LARGER 7.5 - 10.5 Inch
FARPOINT Bahtinov Telescope Focusing Mask - LARGER 7.5" - 10.5"with Flexible Fixing for Telescope Tubes with Tube or Dew Shield Diameter between 7.5" - 10.5" IN STOCK NOW!Focusing mask with variable fixing...
In stock (5) SKU: FP409
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 6 SCT
Drop-in focusing mask for 6" SCTs (Schmidt Cassegrain Telescopes). Focusing tool for serious astrophotographers and those who care about their time and quality of astrophotos.
In stock (5) SKU: FP410
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 8 SCT
FARPOINT Bahtinov Telescope Focusing Mask for Celestron 8" SCT Telescopes Drop-in focusing mask for 8" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who care about their...
In stock (5) SKU: FP410H
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 8 SCT with Hyperstar
FARPOINT Bahtinov Telescope Focusing Mask for Celestron 8" SCT Telescopes Drop-in focusing mask for 8" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who care about their...
In stock (5) SKU: FP415
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 9.25 SCT
FARPOINT Bahtinov Telescope Focusing Mask for Celestron 9.25" SCT Telescopes Drop-in focusing mask for 9.25" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who care about...
In stock (3) SKU: FP415H
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 9.25 SCT with Hyperstar
FARPOINT Bahtinov Telescope Focusing Mask for Celestron 9.25" SCT Telescopes with Hyperstar. Drop-in focusing mask for 9.25" SCTs (Schmidt Cassegrain Telescopes). Focusing tool for serious astrophotographers and...
In stock (3) SKU: FP412
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 11 SCT
FARPOINT Bahtinov Telescope Focusing Mask for Celestron 11" SCT Telescopes IN STOCK NOW!Drop-in focusing mask for 11" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who...
In stock (4) SKU: FP412H
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Celestron 11 SCT with Hyperstar
FARPOINT Bahtinov Telescope Focusing Mask for Celestron 11" SCT Telescopes (larger central opening for when used with Hyperstar)
Drop-in focusing mask for 11" SCTs (Schmidt Cassegrain Telescopes).
In stock (3) SKU: FP411
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Meade 8 SCT
FARPOINT Bahtinov Telescope Focusing Mask for Meade 8" SCT Telescopes IN STOCK NOW!Drop-in focusing mask for 8" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who care...
In stock (2) SKU: FP419
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Skywatcher Maksutov 150 Telescopes
FARPOINT Bahtinov Telescope Focusing Mask for Skywatcher Maksutov 150 Telescopes. Finger holes for easy on and off!
Ask about stock
SKU: FP413
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Meade 10 SCT
FARPOINT Bahtinov Telescope Focusing Mask for Meade 10" SCT Telescopes IN STOCK NOW!Drop-in focusing mask for 10" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who care...
In stock (2) SKU: FP414
Farpoint Astro
Farpoint Bahtinov Focusing Mask for Meade 12 SCT
FARPOINT Bahtinov Telescope Focusing Mask for Meade 12" SCT Telescopes. Drop-in focusing mask for 12" SCTs (Schmidt Cassegrain Telescopes).Focusing tool for serious astrophotographers and those who care about thei...
Low stock (1) SKU: Front-End-Cover-6SE
CELESTRON
Celestron Replacement Front End Cover for 6SE Telescope
Please contact us for availability information....
Low stock (1) SKU: 8000510
CELESTRON
NXS-8DC Celestron Replacement Front End Cover, Lens Cap for 8", 8SE, CPC 800 and C8-A & HD optical tubes
Please contact us for availability information....
In stock (5) SKU: VSEW36501-BRASS
365ASTRONOMY
365Astronomy Multi Eyepiece Holder Wheel for 3 Eyepieces with Brass Compression Rings
NEW VERSION WITH BRASS COMPRESSION RING! Multi Eyepiece Holder Wheel / Turret for 3 Eyepieces with Brass Compression Rings This handy accessory helps to greatly reduce the time spent with swapping eyepieces and refocusing. At...
