Reviews Dielectric Hr Mirror

Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

  • 90 diagonal features sophisticated, lab-tested dielectric coatings that boast an astounding 99 percent reflectivity.
  • Dielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings.
  • Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor, Maksutov-Cassegrain (Mak-Cass) or Schmidt-Cassegrain telescope.
  • Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast.
  • 1.25" nosepiece barrel is threaded to accept like-sized Orion eyepiece filters.
Check Stock

Astromania 2\ 90-Degree 99% Enhanced Dielectric Diagonal Mirror - Provide a Much Brighter Image Than with an Ordinary Star Diagonal

  • 2" Diagonal Mirror with 99% reflection, optics are made with Pyrex glass..
  • Multi-layered dielectric coatings that produce 99-percent reflectivity for brighter, sharper images..
  • Comes with dielectric coatings for the most light transmission possible..
  • Suitable for refractors, Schmidt-Cassegrains, ACF, EdgeHD and Maksutov-Cassegrains..
  • 2" - 1.25" reducing sleeve with brass compression ring, non-marring compression safety secures the eyepieces..
Check Stock

Astromania 2' SCT 90-Degree Mirror Diagonal with 93% reflectivity Across Visible Spectrum - fits Rear Cells of Schmidt-Cassegrain telescopes and Includes an Adapter to use with Refractor telescopes

  • It fits all rear cells of Schmidt-Cassegrain telescopes and includes an adapter to use with refractor telescopes..
  • The 2" SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images..
  • Allows you to take advantage of the wider field of view provided by two inch eyepieces. Dielectric coatings are more durable than regular or enhanced aluminum coatings, so you will enjoy years of excellent performance from this product..
  • The SCT Adapter has a standard SCT female thread (2", 24 TPI),you can use your refractor diagonal with all telescopes having a standard SCT thread for which you can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes..
  • Associated with 90°mirror diagonals, which let you view objects that are at a 90°angle from the direction the telescope is pointing.Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection..
Check Stock

SVBONY SV188P Dielectric Mirror Star Diagonal, 1.25 Inch 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings

  • super flat mirror with dielectric coatings to reduce reflected light loss.
  • 1.25 inches nosepiece fits 1.25 inches telescopes.
  • Barlow lenses and other accessories with a 1.25in insert barrel.
  • diagonal reflects the telescope’s light path 90 degree to provide a more comfortable viewing angle.
  • Correct upside down and left right reversed image.
  • but left and right reversed if use the 90 degrees to your telescope.
  • Built in brass ring and thumbscrew accessories avoid eyepiece to rotate during adjustments.
  • effortless fixes more firmly and will not scratch your eyepieces barrels.
Check Stock

Sightmark Latitude 20-60x80 XD Tactical Spotting Scope

  • Fully multi-coated optics and Dielectric mirror coatings.
Check Stock

DreamSky Digital Alarm Clock with USB Charger for Bedroom – Electric Clock with Large LED Display, 0-100% Brightness Dimmer, Adjustable Alarm Volume, 12/24H, Snooze, Bedside Mirror Clock Office

  • [Compact Size with Large Clear Numbers]: the small digital clock is space saving, which is 2.6”H x 1.4”W x 5.3”L. The 2.1 inches large big digits against the 5.6” display are ultra easy to read at any angle from afar. 12Hr and 24Hr time format optional..
  • [0-100% Dimmable Brightness]: the display brightness of this bedroom alarm clock is fully dimmable so you won’t be disturbed by glaring light at night, perfect for people who needs low light while sleeping..
  • [Modern Elegant Mirror Surface]: the frameless sleek alarm clock is designed with vivid mirror screen, which is also a makeup mirror and decoration while serving as a bedroom alarm clock..
  • [Handy USB Charging Ports]: the digital bedside clock comes with extra USB Charger to power your electronic devices, which is user-friendly for bedroom with limited electricity sockets or plugs..
  • [Adjustable Alarm Volume]: the small alarm clock goes off with 2 minutes beeping sound ringing faster which is 30-90db adjustable. 9 minutes snooze can be repeated within 1 hour..
  • [Runs on Electricity with Memorized Battery]: the led alarm clock needs to be plugged in wall outlet for normal use and the battery (not supplied) is only used to store the clock setting during power cut..
Check Stock

DreamSky Digital Alarm Clock with USB Charger for Bedroom – Electric Clock with Large LED Display, 0-100% Brightness Dimmer, Adjustable Alarm Volume, 12/24H, Snooze, Bedside Mirror Clock Office

  • [Compact Size with Large Clear Numbers]: the small digital clock is space saving, which is 2.6”H x 1.4”W x 5.3”L. The 2.1 inches large big digits against the 5.6” display are ultra easy to read at any angle from afar. 12Hr and 24Hr time format optional..
  • [0-100% Dimmable Brightness]: the display brightness of this bedroom alarm clock is fully dimmable so you won’t be disturbed by glaring light at night, perfect for people who needs low light while sleeping..
  • [Modern Elegant Mirror Surface]: the frameless sleek alarm clock is designed with vivid mirror screen, which is also a makeup mirror and decoration while serving as a bedroom alarm clock..
  • [Handy USB Charging Ports]: the digital bedside clock comes with extra USB Charger to power your electronic devices, which is user-friendly for bedroom with limited electricity sockets or plugs..
  • [Adjustable Alarm Volume]: the small alarm clock goes off with 2 minutes beeping sound ringing faster which is 30-90db adjustable. 9 minutes snooze can be repeated within 1 hour..
  • [Runs on Electricity with Memorized Battery]: the led alarm clock needs to be plugged in wall outlet for normal use and the battery (not supplied) is only used to store the clock setting during power cut..
Check Stock

Orion 52054 Premium Telescope Binocular Viewer, Black with Red Trim

  • Revolutionary new stereo binocular Viewer design has big advantages over traditional binoviewers.
  • With zero back focus requirement, can be Used with any type of telescope - even newtonians - without need for extender lenses.
  • Features a dielectric-coated beam-splitting mirror - not a prism - which Reduces aberration and improves contrast.
  • Twist-tight Collars on the eyepiece holders are self-centering to eliminate problematic eyepiece offset.
  • Use any two 1.25" eyepieces (sold separately) for 3d-like, immersive views of Astronomical and scenic daytime subjects.
Check Stock

Betus Aesthetic Digital Alarm Clock Mirror Surface - Dimmer Night Mode, Large LED Digits Display, Easy Snooze - USB & Battery Operated - Bedroom, Office, Travel Portable (Black)

  • Modern mirror design - This modern designed alarm clock works a mirror and the large digits is easy read within 30 feet. It is such a good stylish choice for your home or office décor!.
  • Snooze and mulitfunctions- Big snooze button on the top helps easily turning off the buzzer without opening your eyes. It also tell you the date, time, and temperature and provide both 12hr and 24hr display..
  • Brightness dimmable - Sleeping is important! The clock provides 3 level brightness that is dimmable right by your bedside, keeping your bedroom dark and creating a peaceful environment for sleep!.
  • Dual power source - Normally it takes standard usb plugin as main power supply. Then you can install 3 aaa batteries as backup power for convenience. (The batteries only serves as backup and screen will only lights up for 15 seconds).
  • Betus warranty - We stand behind our products! All items sold by us come with a one year warranty..
Check Stock

Orion 52055 Pentaprism 1.25-inch Telescope Diagonal Mirror, Black

  • The Orion pentaprism diagonal is ideal for use with the Orion Premium linear binoviewer because the combination renders an upright non-mirror-reversed image.
  • The pentaprism diagonal incorporates a pentagonal-shaped prism of BK-7 glass that is multi-coated and dielectric coated for maximum Light Transmission.
  • It features a 1 25" Non-marring compression ring Collar and a tapered barrel for secure attachment to a telescope.
  • With a generous clear Aperture of 29mm The pentaprism diagonal will not cause image igniting even when used with long focal length wide-field eyepieces.
Check Stock