Archive for Camera Cases & Bags › Scope & Eyepiece Cases
Barska Magnus 66ED Refractor Telescopew/20mm Eyepiece & Hard Case
Posted by: | CommentsBarska Magnus ED 550x50mm Refractor Telescope Top Offers
Refractor Telescope – Objective Lens Size: 50mm – Focal Length: 550mm – Multi-Coated Optics
Overstock.com |
$ 594.99 + $ 2.95 shipping |
The Moon under superb seeing, also some shots of Venus and the scope set up (a Schmidt cassigrain 8 in celestron). The moon is shown on consecutive days to show how things can be seen when the lighting is good, and can quickly vanish when its not (the face on mars etc). The moon can be funny like this I find a sword which you will struggle to find on most high def moon maps, and an anchor which is somewhat easier. Atmospheric condition count for a lot with planetary and lunar obersvations. These were quite good nights. In all cases the camcorder was just put up to they eyepiece although for the second day its bolted on (makes things much more stable).
Video Rating: 4 / 5
Barska Magnus 66ED Refractor Telescopew/20mm Eyepiece & Hard Case
- Extra Low Dispersion ( ED) glass delivers image with no color chromatic aberration of color fringing.
- Large 66mm objective lens with multi-coated optics maximizes light transmission for sharp edge-to-edge images
- Dual-speed Crayford-type focuser provides focusing with finite precision
- Ideal for planetary observations, wide field imaging, astrophotography and crisp high power observations
- Includes one 20mm Plossl eyepiece, diagonal packaged in a deluxe hard carrying case with pluck foam for protection and accessories storage
Our new Magnus Series provides stellar quality and performance in an extremely portable APO. Only ED (Extra Low Dispersion) glass optics with high transmission multi-coatings can produce this kind of exceptional edge-to-edge sharpness and color clari
List Price: $ 1,428.65
Price: $ 476.00
Meade ETX-90EC 90mm Catadioptric Telescope,Tripod,Eyepiece, Hard Carrying Case | US $350.00 (1 Bid) End Date: Tuesday May-22-2012 6:52:26 PDT Bid now | Add to watch list |
GENUINE Pentax 645 Eyepiece Magnifier with Case 38435
 | US $588.00 End Date: Tuesday May-22-2012 7:14:32 PDT Buy It Now for only: US $588.00 Buy it now | Add to watch list |
Barska Magnus 80ED Refractor Telescopew/20mm Eyepiece & Hard Case
- Extra Low Dispersion ( ED) glass delivers image with no color chromatic aberration of color fringing.
- Large 80mm objective lens with multi-coated optics maximizes light transmission for sharp edge-to-edge images
- Dual-speed Crayford-type focuser provides focusing with finite precision
- Ideal for planetary observations, wide field imaging, astrophotography and crisp high power observations
- Includes one 20mm Plossl eyepiece, diagonal packaged in a deluxe hard carrying case with pluck foam for protection and accessories storage
Our new Magnus Series provides stellar quality and performance in an extremely portable APO. Only ED (Extra Low Dispersion) glass optics with high transmission multi-coatings can produce this kind of exceptional edge-to-edge sharpness and color clari
List Price: $ 2,035.75
Price: $ 679.99
StarDust Eyepiece Bolt Case Size A – 42mm ID x 80mm AA1002
Size A: 1.6″ ID / 3.2″ – 4.7″ Length Size A 1.6″ ID / 3.2″ – 4.7″ Length Used for TeleVue 7mm Nagler
Price: $ 3.00
Pentax PF-80EDA 80 mm Spotting Scope Best Prices
Features: Waterproof
DISTRICT |
$ 758.58 + $ 6.95 shipping |
Eagle Optics |
$ 799.00 + $ 0.00 shipping |
StarDust Eyepiece Bolt Case Size C – 65mm ID x 80mm AA1004
Size C: 2.5″ ID / 3.2″ – 4.7″ Length Size C 2.5″ ID / 3.2″ – 4.7″ Length Used for TeleVue 12mm Nagler type 4, older Nagler 9mm, 22mm Panoptic, Meade Electronic eyepiece, Pentax 14,21 and and 28mm XL’s, Celestron Microguide, Meade 9 and and 12mm I
Price: $ 5.00
1.25" Telescope Eyepiece Cases SET OF 3 for Meade Eyepieces | US $5.25 End Date: Tuesday May-22-2012 9:33:15 PDT Buy It Now for only: US $5.25 Buy it now | Add to watch list |
1.25" Telescope Eyepiece Cases SET OF 3 for Celestron Eyepieces
 | US $5.25 End Date: Tuesday May-22-2012 9:33:38 PDT Buy It Now for only: US $5.25 Buy it now | Add to watch list |
StarDust Eyepiece Bolt Case AAA – 35mm ID x 50mm AA1000
Size AAA: 1.4″ ID / 1.9″ – 2.6″ Length Size AAA 1.4″ ID / 1.9″ – 2.6″ Length Used for Older Orthos and and Plossls
Price: $ 3.00
StarDust Eyepiece Bolt Case Size B – 52mm ID x 80mm AA1003
Size B: 2″ ID / 3.2″ – 4.7″ Length Size B 2″ ID / 3.2″ – 4.7″ Length Used for Celestron Nexstar Plossls 32mm and shorter, all Celestron SMA, Ultima 18mm and shorter, 15 and and 19mm Axioms, Meade Series 3000 25mm and and shorter, Tele Vue 25,20,
Price: $ 4.00
1.25" Telescope Eyepiece Cases SET OF 3 for Orion Eyepieces | US $5.25 End Date: Tuesday May-22-2012 9:34:05 PDT Buy It Now for only: US $5.25 Buy it now | Add to watch list |
StarDust Eyepiece Bolt Case Size D – 65mm ID x 120mm AA1005
Size D: 2.5″ ID / 4.7″ – 7.8″ Length Size D 2.5″ ID / 4.7″ – 7.8″ Length Used for TeleVue 12mm,17mm and and 22mm Naglers, TeleVue 55mm Plossl, 22 and and 27mm Panoptics, Pentax 5.2, 7, 10.5, 40mm and and XL-Zoom
Price: $ 6.00
Baader Planetarium Eyepiece Case for Hyperion Eyepieces – AAS064
The perfect way to store your Baader Hyperion telescope eyepieces. The Hyperion eyepieces have had a cult following for years – known as an unbeatable value you are sure to end up with different sized focal lengths. This case allows for easy transpor
Price:
Baader Planetarium Eyepiece Case for Hyperion Eyepieces – AAS064-1
The perfect way to store your Baader Hyperion telescope eyepieces. The Hyperion eyepieces have had a cult following for years – known as an unbeatable value you are sure to end up with different sized focal lengths. This case allows for easy transpor
Price:
TOPCON CASE AND BOX FOR EYEPIECE MAGNIFIER/117815 | US $15.00 End Date: Tuesday May-22-2012 13:54:45 PDT Buy It Now for only: US $15.00 Buy it now | Add to watch list |
Not a povray animation, but it shows the interesting aspects of trying to image an extrasolar planet from the ground: Atmospheric turbulence is corrected by so-called adaptive optics on modern telescopes. The animation shows a “normal” observation on the left, seeing correctd by standard, contemporary AO systems in the center, and a correction as it is expected from the next generation of “extreme” AO systems. The top row shows the instantaneous image an astronomer would get to see through an eye-piece, in the bottom row a long-exposure image is integrated up to 10s. Embedded are a number of planets, in directions from the primary and at contrast ratios denoted by the yellow cross in the middle. After the image integration is finished, we can see how the actual contrast improved in the three cases first when a standard classical Lyot coronagraph is introduced, and then what happens when also “differential imaging” is pallied. In this particular case, I show spectral differential imaging (SDI), where images are taken at slightly different wavelengths, on at which the planets are bright, and one at which the planets are faint.
Celestron 9mm 1.25" Telescope Eyepiece with Plastic Case -- NEW!
 | US $15.95 End Date: Tuesday May-22-2012 14:39:09 PDT Buy It Now for only: US $15.95 Buy it now | Add to watch list |
The basics of binoculars
You have to understand the basics of binoculars before buying one. This is the purpose of this article.
A binocular is actually two perfectly aligned telescopes and getting these two telescopes to work together as one instrument is a huge challenge for manufacturers. The physical features of binoculars which strike you first, are basic design, central focusing mechanism and diopter.
Basic design: There are two basic and conspicuously different types of designs. All binoculars either use “porro prisms” or “roof prisms”. The ones using porro prisms are the traditional design where the eye pieces are off-center to the barrels, whereas the ones using roof prisms the eye pieces are in line with the objective lenses and have a sleek design. Porro prism binoculars are less expensive and have greater three-dimensional viewing effect, whereas roof prism binoculars are more compact and lighter, but are usually more expensive.
Central focusing mechanism: The knob/wheel between the two optical barrels by means of which you change the focus when looking at an object. It could also be a toggle switch. The focus of “Auto focus” binoculars have been fixed at the factory, so they do not have a central focusing mechanism.
Diopter: This is a focus knob (usually at the right eyepiece) that lets you focus one side of the binoculars separately from the other, in order to set the binoculars to accommodate differences in the focusing of your two eyes. Some “auto focus” binoculars have a diopter for each eyepiece.
Technical features:
Magnification/power: A set of technical detail imprinted on any pair of binoculars could be something like this: 8×42, or 10×50. The first number (8, 10) is the magnification number, the “power” of the binoculars. The object is magnified by 8 or 10 times, which means that it appears to be 8 or 10 times closer than seen with the naked eye. Please note: The more powerful a binocular, the less bright the image – which will be a problem when focusing on something in the shade of a tree or in dim light in general. Moreover, the more powerful, the more difficult it becomes to focus on an object: Even the slightest hand movement is enhanced. Some binoculars do have image stabilization which electronically reduces movement for steadier viewing, but these are very expensive. A magnification of 8 xs is generally regarded as ideal for general, game and bird viewing.
Objective lens: The second number (42, 50) is the diameter of the objective lens (in millimeters), i.e. the two big lenses at the front of the two barrels. It is also called the “aperture” of the binocular. The bigger the aperture, the more light is captured, resulting in a clearer and brighter image, which is important when used in fading light.
Field of view (FOV): Another set of technical detail which is imprinted on the binoculars, could be something like this: 400 ft. at 1000 yds. This is the field of view, the width of the view at the particular distance. In this case 400 feet at 1000 yards. Could be designated in meters or in degree. Field-of-view is determined eyepiece design, but magnification does have an effect as well. For this reason even small pocket binoculars can have a reasonable FOV.
The exit pupil: The exit pupil can be seen by holding the binoculars at arm’s length and looking through the eyepieces. The pencil of light you see is the exit pupil. The actual diameter of the exit pupil is computed by dividing the diameter of the front objective lens (in millimeters) by the magnification of the binocular. So, in the case of a 7×35 binoculars, the diameter of the exit pupil is 5 millimeters. The relative brightness index (RBI) is an indication of image brightness. It is computed by squaring the exit pupil. So the RBI of our example is 25 (5×5=25). A RBI of 25 or greater is considered good for use in dim light.
Eye relief: For every pair of binoculars, there is an optimal distance between your eyes and the eyepieces, which is called eye relief. If your eyes are too close to or too far from the eyepieces, you can’t see the whole picture: part of it is blacked out. So, if you happen to wear eyeglasses, you have to make sure the eye relief is at least 15 mm. Except in the case of very expensive binoculars, field of view and eye relief work against one another. If the manufacturer increases the one, it is at the cost of the other.
Coating of lenses:The lenses of all binoculars should be made from Bk-4 glass and are coated with anti-reflective coating, which is applied to enhance the quality of the image. Make sure you choose a “fully multi-coated” pair of binoculars. In the case of roof prism binoculars the lenses also have to be coated with “phase correcting” coatings.
Waterproofing: A waterproof model will not only be less likely to fog up internally, it will also be better sealed against dust and dirt. Make sure the binoculars are “nitrogen purged/filled”.
Close focus: Focusing at a distance is no problem for any pair of binoculars; focusing at close range, however, is a totally different matter. For watching birds or butterflies you will have to look for a pair with a close focus range of less than 4 meters. Compact binoculars excel in close focus, some even as close as 1 meter.
The focus speed: If you need the binoculars for watching wild animals, in particular birds, the speed of focus is important. While following a bird in flight, you need to change the focus all the time and if your binoculars do not allow for quick adjustment, you will struggle all the way.
Cobus Cronje has written extensively on a wide variety of subjects, including binoculars. You can get more information on pocket binoculars.
Article from articlesbase.com
 | US $16.99 End Date: Wednesday May-23-2012 15:08:32 PDT Buy It Now for only: US $16.99 Buy it now | Add to watch list |
Case For 1.25" Telescope Eyepieces - Three Large Cases
 | US $5.99 End Date: Wednesday May-23-2012 19:03:18 PDT Buy It Now for only: US $5.99 Buy it now | Add to watch list |
