celestron lenses

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The Celestron 0.7x Reducer Lens features a custom 5-element optical design and is engineered to maintain the flat-field performance of the EdgeHD 1400 aplanatic Schmidt optical tube assembly (OTA). This reducer lens provides a substantial 5.75" back focus to accommodate an assortment of imaging accessories. It offers high index optical elements, including extra low dispersion, Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air-to-glass surfaces are treated with multiple layers of anti-reflection coatings for maximum light transmission and color correction, and the interior of the housing has blackened edges to minimize internal reflection and further enhance image contrast.

The reducer lens features large-diameter lens elements and up to 60mm clear aperture, which ensure that the image circle remains at a generous 42mm for use with large CCD sensors. The mechanical design incorporates a computer-assisted CNC machined aluminum housing for precise spacing and alignment of optical elements and threaded metal covers on the lens assembly to protect your lens from dust and scratches.

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Top Highlights

  • Designed to Maintain Flat Field Images
  • Five-Element Lanthanum ED Glass Lens
  • Anti-Reflection Fully Multicoated Optics
  • 0.7x Compression Factor
  • Reduces Exposure Time
  • Increases Field of View
  • Optimal Back Focus: 5.75"

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The 0.7x Reducer Lens for EdgeHD 800 from Celestron adds one full f-stop of exposure speed and broadens the field of view of the 8" configuration of Celestron's EdgeHD optical tube. This telescope accessory has a fully multicoated optical path featuring high-transmission lanthanum glass elements with blackened edges, delivering color faithful images that are contrast-rich and crisp from center to edge. A 105mm back focus distance accommodates additional imaging accessories and a wide range of cameras, including the Nightscape CCD and DSLRs. The 0.7x Reducer Lens has an aluminum housing that is precisely machined to ensure exact spacing and alignment of the optical elements.
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"Pricey but worth it!...This is a chunky bit of kit, well made........This is one pricey lens to reduce the f/stop but it'll definitely save you some time on taking some shots with your DSLR....As it says the field of view is larger, which make visual observing a new experience but it's with photography where it shines for me."

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Top Highlights

  • For 8" EdgeHD Optical Tube
  • 0.7x Focal Reduction, 43% Wider FOV
  • Fully Multicoated Lanthanum Glass
  • 105mm Back Focus Distance
  • Optimized for APS-C Camera Sensors
  • Machined Aluminum Housing
  • Included Metal Lens Covers

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$319.95
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B&H # CEBLO2X MFR # 93326

A Barlow lens offers an easy and economical way to increase the magnification range of your eyepieces by doubling the magnification of any eyepiece in use.
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"Very good magnification...Easy to use and fits right into the visual back and into the tele extender."

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$38.00
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B&H # CE93529 MFR # 93529

The X-CEL 2x Barlow Lens -1.25 from Celestron has a 3-element fully multi coated design. It has a brass pressure ring for securely holding the eyepiece without damaging the barrel. A ridged rubber grip provides a secure, non-slip hold. The black anodized finish with orange rings makes for a visually attractive device. It is threaded for 1.25" filters.
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Top Highlights

  • Fully Multicoated
  • Rubber Grip
  • Brass Pressure Ring
  • Black Anodized Finish
  • Threaded for 1.25" Filters

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$72.00
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(12)

B&H # CEL25BL MFR # 93436

The 2.5x Luminos 2" Barlow Lens from Celestron extends the effective focal length of an optical tube by 2.5x. This telescope accessory features a fully multicoated optical path with four lens elements designed to improve color fidelity and transmit a field of view that is flat from center to edge. The eyepiece holder is threaded to accept 2" eyepiece filters and will accommodate 1.25" and 2" eyepieces; brass compression rings secure the eyepiece without damaging the barrel's finish. The aluminum housing is finished with an anodized hard coat for enhanced scratch and corrosion resistance.
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"~ Well Constructed & Versatile ~...it is really good quality and arrived on time in very good condition, Thanks to B & H....I'd rather have one high quality lens / barlow than five cheaply constructed optical "weak-links" in a viewing system..."

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Top Highlights

  • 2.5x Magnification
  • 2" Barrel Diameter
  • Fully Multicoated Optics
  • Holds 1.25" and 2" Eyepieces
  • Threaded for 2" Eyepiece Filters
  • Anodized Aluminum Housing
  • Brass Compression Rings
  • Knurled Set Screw Grip

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$99.95
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(11)

B&H # CEXCLX3XBL MFR # 93428

The X-Cel LX 3x Barlow Lens (1.25") from Celestron is a new addition to the X-Cel series of lenses. Barlow lenses triple the magnification of your telescope eyepiece, ideal for achieving a closer view of lunar and planetary objects. This three-element apochromatic lens transmits color faithful images with enhanced detail, and fully multicoated surfaces provide contrast rich images with minimal internal reflection.
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"Great add on...Nice purchase...Have celestron nexstar 5se that foes good job....This is a great 3x Barlow lens"

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Top Highlights

  • 3.0x Magnification
  • 1.25" Tube Diameter
  • Full Multicoated Optics
  • 3-Element Apochromatic Lens
  • Brass Compression Ring
  • Grooved Focus Ring

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$75.00
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B&H # CER7XE1100 MFR # 94241

The 0.7x Edge HD Reducer Lens from Celestron is a compact telescope accessory designed to reducing exposure time of your astrophotographs by half to capture the same level of brightness by making your EdgeHD 1100 one full f-stop faster. This accessory telescope eyepiece threads directly to 3.25" threads of EdgeHD, reducing mechanical vignetting and allowing for use with full-frame sensor cameras and off-axis guiders, as well as your existing Edge HD T-adapters .

This reducer lens features a custom 5-element optical design engineered to maintain the flat-field performance the EdgeHD telescope system. Unlike generic reducers, this premium reducer provides substantial back focus to accommodate an assortment of imaging accessories.

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"My expectations satisfied !"

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Top Highlights

  • 0.7x Compression
  • Fully Multicoated Optics
  • 5-Element Design
  • Increase Speed by 1.0 F-Stop
  • Threads onto 3.25" Thread

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Designed specifically for their 9.25" EdgeHD optical tube assembly (OTA), the Celestron 0.7x Focal Reducer Lens speeds its focal ratio from an f/10 to a much faster f/7.1 for drastically reduced exposure times with the same results, and wider fields of view. The reducer maintains the EdgeHD optic's flat-field performance through the use of a 4-element lens system using Lanthanum glass, with blackened edges, and anti-reflection fully multi-coated optics. The Reducer is made to attach directly to the back of the EdgeHD OTA which keeps the same back focus for cameras and accessories so there is no need for new gear. A 60mm clear aperture is optimized for larger full-frame sensors to avoid vignetting of the scene.
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Top Highlights

  • Reduces OTA Focal Ratio to f/7
  • Drastically Reduces Exposure Time
  • Fully Multi-Coated Lanthanum Glass
  • Maintains EdgeHD Flat-Field Performance
  • Increases Field of View
  • Direct Connection to Avoid Vignetting
  • Powder-Coated Aluminum Body

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$329.95
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