Showing posts with label Filter. Show all posts
Showing posts with label Filter. Show all posts

Thursday, September 8, 2011

2" Orion 13% Transmission Moon Filter

2" Orion 13% Transmission Moon Filter Reviews


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2" Orion 13% Transmission Moon Filter Feature

  • Helps reduce the bright glare of the Moon so you can see more lunar detail and surface features with your telescope
  • 2" Moon filter threads directly into the barrel of a 2" telescope eyepiece
  • Especially useful for large aperture telescopes through which the bright Moon surface can be overwhelming
  • Transmits just 13% of the incoming light to your eye, enhancing your view
  • Neutral filter will not alter the natural color of the Moon in your views
The Moon's disk, even at partial phases, is intensely bright with reflected sunlight. The glare washes out most of the craters, rilles, and other surface details from view. Our Moon Filter reduces the glare, allowing transmission of only 13% of the reflected light. Not only will you see more surface features, but you can study them in greater comfort. The filter reduces irradiation, which is the distortion at the boundary between light and dark areas, such as along the lunar terminator. The Orion Moon Filter is especially useful to owners of large-aperture scopes, in which the Moon's brightness can be overwhelming. It uniformly reduces light over the entire visible spectrum. Screws into threaded eyepiece barrel.


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Sep 09, 2011 05:00:05

Saturday, August 20, 2011

Televue BFO-0125 Bandmate OIII 1.25 inch Filter - BFO0125

Televue BFO-0125 Bandmate OIII 1.25 inch Filter - BFO0125 Reviews


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Televue BFO-0125 Bandmate OIII 1.25 inch Filter - BFO0125 Feature

  • This OIII filter particularly enhances planetary nebulae in larger telescopes
  • Narrowband filter for high transmission, with high blocking of unwanted longer wavelengths to yield high-contrast images.
  • Ion beam technology and optical glass produces low scatter in a hard stable coating to reduce changes due to temperature and humidity.
  • Optical quality BK7 glass yields sharp star images even when filter is placed in front of diagonal.
  • 100% quality control: Every single filter is checked optically and cosmetically to assure performance. Every filter is individually serialized
Bandmate filters yield bright, sharp and contrasty images - even in the optically sensitive position in front of the diagonal. Optical glass and red filtering allows for sharp and bright views of nebulae with embedded star clusters - such as the Lagoon Nebula (M8).


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Aug 20, 2011 23:11:04

Saturday, August 13, 2011

SBIG CFW9 Five Position Filter Wheel for the ST-7, 8, 9, 10 & 2000 USB Models without Filters

SBIG CFW9 Five Position Filter Wheel for the ST-7, 8, 9, 10 & 2000 USB Models without Filters Reviews


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The CFW-9 system is designed to be "Direct connected" to any ST-7/8/9/10/2000 imaging camera for a thinner, more rigid mounting. The CFW-9 is operated through the CCDOPS software and utilizes a closed loop stepper motor system with positional accuracy of ±0.01 inches. It holds up to five standard 1.25" diameter thread-in filters. It is available with Red, Green, and Blue (RGB) interference filter sets and a clear filter (focusing). The new SBIG RGB filters also block Infrared (IR) so an inline IR Blocking filter is no longer required. These filters are mounted in standard size cells that normally fit into 1.25" eyepiece barrels. The CFW-9 adds back focus of approximately 1 inch. The CFW-9 can produce photographic quality tricolor images that rival color astrophotographs. However, these RGB images also contain an entirely new and added level of valuable information; the identification and distribution of different ionized gasses in an object. SBIG also furnishes precision UBVRI filter sets with the Model CFW-9, filters that allow the user to perform color photometry to measure the classification and temperature of objects. Tricolor images are taken through the CFW-9 Color Filter Wheel and processed with CCDOPS, CCDSoftV5, or third party software. The primary color images are taken through Red, Green and Blue filters. After the images are taken they are processed with the software to co-align the Red, Green and Blue images. The co-aligned image is th


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Aug 14, 2011 04:56:04

Friday, August 12, 2011

Coronado 30mm Blocking Filter BF30

Coronado 30mm Blocking Filter BF30 Reviews


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The Blocking Filter is the second element in any Coronado H-Alpha system, it is just as crucial to your safety and the system's performance as the front element. Use the following guidelines for selecting which Blocking Filter you need based on the focal length of the telescope being used. If you are switching to a longer focal length telescope your SolarMax system you can purchase blocking filters separately.

Focal Length <3000mm - BF30

There is no advantage for visual use in using a larger blocking filter than required based on the focal length; however, based on customer feedback, we understand that for imaging with telescopes under 500mm fl, the BF10 is easier to use than the BF5. The Blocking Filter is not a stand alone filter. It is an integral part of the Coronado design and cannot be used without a SolarMax series filter on the front of the optical system.

The BF5, 10, and 15 are all 1.25" right angle diagonals. The BF30 is a 2" straight through design and comes with a 1.25" Zero Length reducer.


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Aug 13, 2011 09:05:28

Monday, July 11, 2011

Baader Planetarium Semi-APO Filter 2" FSAPO-2

Baader Planetarium Semi-APO Filter 2" FSAPO-2 Reviews


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Baader Planetarium Semi-APO Filter 2" FSAPO-2 Feature

  • Baader Planetarium Semi APO Filter combines the Baader Fringe Killer coating formula with the Baade
  • Zero image degradation
  • Famous Baader Quality
  • Works as a great Mars filter

Baader Planetarium Semi APO Filter 2"

The Baader Semi APO filter is a truly innovative product unique to Baader Planetarium. Founded by combining properties from two of their most popular filters the Baader Planetarium Semi APO Filter is a truly effective tool in fighting false color.

Baader's newest addition for Achromat owners. The Semi-APO works like it's name implies - delivering an amazingly neutral view, while cutting most of the annoying and contrast-robbing violet fringe that plagues all achromats. The Semi-APO filter combines a stronger Fringe Killer coating formula with the Moon&Skyglow Neodymium substrate. The result is similar performance to the Fringe Killer + Moon&Skyglow combination, but with a slightly stronger violet cut - and at an even greater value.

The Semi-APO filter benefits from all the host of world-class Baader filter attributes. The Semi-APO filter is truly the world's most advanced 'minus-violet' type filter in every regard. It's high efficiency and neutral coloration make it practically disappear in use - while making most of the violet fringe disappear! The effects on sharpness, contrast, and aesthetics are remarkable, even with small refractors. The RGB enhancement of the Neodymium substrate actually boosts color contrasts, particularly for Jupiter and Mars.

As a side benefit, the Semi-APO filter has also proven to be the best Mars filter we've used - with ALL Telescopes, including large Dobsonians, SCTs, and Apochromats. The unique properties that result from the combination of the Fringe Killer's blue wavelength attenuation (attenuation - not total elimination), plus the selective Neodymium RGB passbands, result in a significant contrast enhancement of Martian features. The image retains its natural coloration and brightness, and the optically polished surfaces maintain every bit of the image sharpness, unlike other manufacturer's filters.&


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Jul 11, 2011 17:23:04

Saturday, May 28, 2011

Seymour Solar Filter (SF9187) for Telescopes: All Meade 8" S-C"s and Celestron 8" S-C's; Discovery DHQ 6" Dob; Takahashi Epsilon-180ED; and Vixen R200SS, VC200L, VMC200L, VMC260L

Seymour Solar Filter (SF9187) for Telescopes: All Meade 8" S-C"s and Celestron 8" S-C's; Discovery DHQ 6" Dob; Takahashi Epsilon-180ED; and Vixen R200SS, VC200L, VMC200L, VMC260L Reviews


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Seymour Solar Filter (SF9187) for Telescopes: All Meade 8" S-C"s and Celestron 8" S-C's; Discovery DHQ 6" Dob; Takahashi Epsilon-180ED; and Vixen R200SS, VC200L, VMC200L, VMC260L Feature

  • Scratch free, 8", glass aperture
  • Sturdy aluminum cell
  • Secured with a nylon thumb screw
  • Direct from the manufacturer
  • Excellent for direct view or photography of the sun.
This is a safe full aperture solar filter. The neutral density is 5-5.5, which means that the filter blocks 99.999% of the sun so that there is no damage to your eyes. Because this is a full aperture filter it allows the best possible daytime viewing of the sun. The sun is viewed in a natural yellowish-orange image. This premium solar filter has an aluminum cell that is secured to the tube end of the telescope with a nylon thumb screw. The aperture is made with high quality, hand selected, scratch free, reflective coated glass. It is the highest quality, most durable filter on the market. It can be used for direct viewing or photography through the telescope. It will fit a telescope with a tube end (opposite the eyepiece) diameter of 8 13/16"(224mm) to 9 1/16"(230mm). You can measure the end of your telescope to be sure this filter will fit. This filter is new in the box in plastic. The filter box is foam lined for protection and shock absorption during handling. It is durable enough to store the filter while not in use. With the filter comes instructions for use and care.


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May 28, 2011 12:15:03

Thursday, May 26, 2011

Coronado SolarMax II 60 Telescope with RichView Tuning, Fully Integrated H-Alpha, 60mm Aperture, 10mm Blocking Filter, < 0.7A Bandwidth

Coronado SolarMax II 60 Telescope with RichView Tuning, Fully Integrated H-Alpha, 60mm Aperture, 10mm Blocking Filter, < 0.7A Bandwidth Reviews


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Coronado SolarMax II 60 Telescope with RichView Tuning, Fully Integrated H-Alpha, 60mm Aperture, 10mm Blocking Filter, < 0.7A Bandwidth Feature

  • Used around the world by serious solar enthusiasts and professional research facilities alike for safe observation of the Sun
  • Solar telescope lets you safely observe of surface detail and prominences on the Sun in hydrogen-alpha (Ha) light
  • SolarMax II 60 is tunable to achieve the highest contrast views of active regions, flares, filaments, and other surface detail, or quickly and easily re-tune for prominences on the solar limb
  • Features a 10mm blocking filter with sub 0.7 angstrom bandwidth filtering
  • Powerful but very portable, this high resolution Solar Telescope offers dedicated visual observation of the Sun as well as high quality imaging
Coronado by Meade SolarMax II 60mm Solar Telescope with RichView system. Includes 10mm Blocking Filter. 60mm diameter Solar Telescope with sub 0.7 angstrom bandwidth filtering for observation of surface detail and prominences on the Sun in hydrogen-alpha (Ha) light.Used around the world by serious solar enthusiasts and professional research facilities alike for observation of surface detail and prominences on the Sun in hydrogen-alpha (Ha) light. Powerful but very portable, this high resolution Solar Telescope offers dedicated visual observation of the Sun as well as high quality imaging. The new Meade Coronado II represents a breakthrough in solar observing with the new and revolutionary RichView tuning assembly. This patented system allows direct tuning of the primary filter etalon. No other commercially available Ha telescope can provide the tuning range and accuracy of the SolarMax II. Now you can tune for the highest contrast views of active regions, flares, filaments and other surface detail, or quickly and easily re-tune for prominences on the solar limb. The stunning bright red views through a Coronado Ha telescope display astounding surface and limb detail especially when the Sun is in an active phase. This very high quality 60mm personal solar observatory features an 400mm focal length, f/6.6 focal ratio.


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May 26, 2011 16:51:04

Wednesday, May 25, 2011

Lumicon Multiple Filter Selector

Lumicon Multiple Filter Selector Reviews


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Lumicon Multiple Filter Selector Feature

  • Fits Standard 1.25" Filters
  • 5 Filter Positions
  • 6oz Solid Light Weight Construction
  • 7/8" Low Profile Design when in photographic use
  • Includes 1.25" Eyepiece Adapter
The Lumicon 5-Place Multiple Filter Selector. Lets you easily switch back and forth between your 1.25" Lumicon Light Pollution Blocking Filters without having to constantly thread and unthread the filters from your eyepieces..very annoying in the dark. Leave one of the 5 slots open to compare views with and without your Lumicon filters.


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May 25, 2011 17:22:05

Friday, May 20, 2011

Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope with Meade ETX90 Telescope Hard Case + Celestron Sky Map Star Chart Book + Meade Lunar & Planetary Color 4 Filter Set

Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope with Meade ETX90 Telescope Hard Case + Celestron Sky Map Star Chart Book + Meade Lunar & Planetary Color 4 Filter Set Reviews


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Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope with Meade ETX90 Telescope Hard Case + Celestron Sky Map Star Chart Book + Meade Lunar & Planetary Color 4 Filter Set Feature

  • Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope
  • Meade ETX90 Telescope Hard Case
  • Meade Lunar & Planetary Color 4 Filter Set
  • Celestron Sky Map Star Chart Book
KIT INCLUDES:
* MEADE ETX-90 TELESCOPE.
* MEADE ETX90 HARD CARRYING CASE.
* MEADE COLOR FILTER SET.
* CELESTRON SKY MAP STAR CHART BOOK.


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May 21, 2011 07:18:04

Wednesday, May 18, 2011

Meade Series 4000 Eyepiece for Telescopewith Filter Set

Meade Series 4000 Eyepiece for Telescopewith Filter Set Reviews


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Meade Series 4000 Eyepiece for Telescopewith Filter Set Feature

  • Designed and manufactured to exacting standards
  • Series 4000 Super Plossl Eyepieces
  • 52 Degree Apparent Field of View (44 Degree on the 40mm)
  • Includes 2x Barlow Lens, 4 Color Filters, Moon Filter
  • Aluminum Hard Carry Case
Designed and manufactured to exacting standards, Meade Series 4000 Super Plössl eyepieces deliver wide 52° apparent fields of view (44° for the SP40mm) with all of the resolution, edge-of- field sharpness and color correction demanded in the most advanced visual applications. All eyepieces are multi-coated and include soft rubber eyeguards. Each Series 4000 Set includes: 6.4mm Super Plössl Eyepiece, 9.7mm Super Plössl Eyepiece, 12.4mm Super Plössl Eyepiece, 15mm Super Plössl Eyepiece, 32mm Super Plössl Eyepiece, 40mm Super Plössl Eyepiece, 2x Barlow Lens (#126), Aluminum Hard Carry Case, Color Filter Set #1 (yellow/red/green/blue), Moon Filter.


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May 18, 2011 18:35:07

Tuesday, April 26, 2011

Coronado SolarMax II 90mm Double Stacking Etalon with RichView Tuning Filter SME-90

Coronado SolarMax II 90mm Double Stacking Etalon with RichView Tuning Filter SME-90 Reviews


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Coronado by Meade SolarMax II 90mm Double Stacking Etalon with RichView tuning system. 90mm diameter primary H-Alpha etalon filter. This add on filter reduces the normal bandwidth of a SolarMax 90 telescope or filter set from the single stack .7A performance to a more restrictive .5A, increasing visibility of surface detail and active regions on the Solar disc. MUST be combined with a primary SolarMax 90 filter and blocking filter or complete Coronado SolarMax 90 telescope.

Includes patented RichView tuning assembly allows direct tuning of the primary filter etalon. No other commercially available Ha telescope can provide the tuning range and accuracy of the SolarMax II. Now you can tune for the highest contrast views of active regions, filaments and surface detail, or quickly and easily re-tune for prominences on the solar limb. This filter cannot be used as a stand alone filter, primary and blocking filters required.


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Apr 27, 2011 08:37:05

Tuesday, April 12, 2011

1.25" Orion UltraBlock NarrowBand Filter

1.25" Orion UltraBlock NarrowBand Filter Reviews


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1.25" Orion UltraBlock NarrowBand Filter Feature

  • In areas plagued with significant light pollution, our UltraBlock eyepiece filter greatly increases contrast of emission and planetary nebulas
  • Allows you to see features and details through a telescope that would normally be lost due to light pollution
  • Blocks all forms of light pollution while passing critical hydrogen-beta and ionized oxygen wavelengths of light
  • Enhances the sky presence of a significant number of fainter deep-sky objects
  • Use with any 1.25" Orion eyepiece threaded for filters
The UltraBlock is the filter for deep-sky observers located at highly light-polluted sites. Blocks all forms of light pollution - mercury vapor and sodium emission bands - while passing the critical hydrogen-beta and ionized oxygen wavelengths. With an UltraBlock, emission and planetary nebulas "surface" from the washed out background sky. In dark skies, the UltraBlock also enhances the sky presence of a significant number of fainter deep-sky objects over unfiltered and wideband-filtered views.


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Apr 13, 2011 08:16:06

Sunday, April 10, 2011

Baader Planetarium Moon and Skyglow Filter - 2" FMS-2

Baader Planetarium Moon and Skyglow Filter - 2" FMS-2 Reviews


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The Baader Planetarium Moon & Skyglow (Neodymium) filter brings an entirely unique approach to planetary contrast enhancement and light pollution reduction. Based on earlier research at Carl Zeiss, Baader has developed a new filter that uses Neodymium glass which filters out a few specific wavelengths from streetlights as well as skyglow from the Moon. The unique spectral characteristics of Neodymium also boost color contrasts by isolating the Red, Green, and Blue regions (so-called RGB enhancement). The result is a filter that leaves natural colors mostly intact, but significantly enhanced.

Planetary and Lunar views are improved in all scopes, reflectors, refractors (APO or Achro). Jupiter's Great Red Spot and ruddy hues of the bands are noticeably enhanced, and contrast of Martian surface features significantly boosted. The Background sky is darkened, and subtle details improved. The filter's high efficiency preserves image brightness, and many Galaxies, Nebulae and Globular Star Clusters are improved due to the reduction of skyglow from artificial lighting.

The high quality of Baader Planetarium filters permits stacking with no image degradation. Achromat owners will find the combination of Moon & Skyglow and the new Fringe Killer filter to be ideal for planetary viewing. The high light throughput and natural coloration will make achromats perform more like an apochromat. An integrated version is also now available, the Semi-APO filter.

The filter substrate is a special custom melt of Neodymium doped glass, designed for specific transmission characteristics, and made only for Baader Planetarium. In addition to it's unique spectral characteristics, unlike most filters, the Baader Moon & Skyglow surfaces are optically polished to deliver the best possible image sharpness and contrast.

The images below demonstrate the large contrast improvement on Mars. The image on the


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Apr 10, 2011 23:35:07

Thursday, April 7, 2011

Thousand Oaks Solar Filter Type 2+ for Meade & Celestron 8" Schmidt-Cassegrain Telescopes

Thousand Oaks Solar Filter Type 2+ for Meade & Celestron 8" Schmidt-Cassegrain Telescopes Reviews


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Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Transmission is 1/1,000th of 1% (Optical Density 5). Great for both visual and photographic use. Solar image is yellow-orange. Guaranteed fifteen years.


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Apr 08, 2011 09:44:07