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B0009OBOHU Availability: Currently unavailable Score: 1000.000 Category: Electronics Rating: 2 Votes: 1 Find similar products Meade LXD75 AR5-AT (f/9) Achromatic Refractor. Aperture: 5-Inch. Focal Length: 1143mm. Focal Ratio: f/9. #497 AutoStar handbox.	B07XQXTG9Y Availability: Currently unavailable Score: 6.369 Category: Electronics Rating: 1 Votes: 1 Find similar products Omegon Apochromatic Refractor Pro APO AP 71/450 Quadruplet OTA. Better astrophotos that help you discover the sky in a new way. What is it that drives astrophotographers time and again? It is the fascination of depicting the sky in its most beautiful colours and shapes. With this apochromat, you can do just that. The premium ED glass and a colour-pure image make for enjoyable observations with fine details that would not be possible with basic optics. Rediscover the sky. Why these optics reveal more details No more images without contrast. This apochromat shows what is really possible: pure-colour and high-contrast observations and astrophotos. The key is a sophisticated optical design with premium ED glass for a crystal-clear image. Compared to most mirror systems, the better-defined optics allow you to see more and finer details when observing the planets, for example. All surfaces of the lens elements are treated with an effective multi-coating to prevent reflections. Enjoy memorable observations and shots. 2.5 focuser with gearing and ball bearings This 2.5 geared focuser is a small spatial miracle, and large enough that no shading occurs. An ingenious hybrid technology comprising a Crayford focuser and a gear wheel makes it particularly strong and suitable for accessories weighing up to 4kg. The ball bearings provide for smooth focusing, allowing you to easily find the perfect focus. A 1:10 reduction gearing makes precise focusing a breeze. Astrophotographers around the world value precisely these features. 360° rotation for framing the perfect photo. You found the object and focused on it, but with the wrong orientation? Save yourself the trouble of having to start over again at night to align an elongated object with the sensor. This is ea.
B0069VXKM4 Availability: Currently unavailable Score: 5.988 Category: Electronics Rating: 3.7 Votes: 13 Find similar products Orion 3640 Collimating Telescope Eyepiece. From the Manufacturer Economical collimation tool ensures that your reflector telescope's optics are in precise alignment. Combination 5 long sight tube and 1.25 Cheshire eyepiece. For aligning optics of Newtonian reflectors, Dobsonian reflectors, and Schmidt-Cassegrain Telescopes (SCTs). Peephole in top and crosshairs at bottom enable precise optical centering. Compatible with 1.25 telescope focusers or 2 focusers with a step-down adapter for using 1.25 accessories.	B004RBOZYA Availability: Currently unavailable Score: 5.952 Category: Electronics Rating: 4.4 Votes: 14 Find similar products OMAX M51B 20X-40X-100X Solid Metal Portable Handheld Field Measuring Inspection Shop Microscope with Pen Light and Reticle Eyepiece. Total magnification: 20x, or 40x, or 100x; Objectives: 2x, 4x and 10x; Eyepiece: W10X/15.5mm with cross reticle; Division of reticle: 20x @ 50um (1/20 mm), 40x @ 25um (1/40 mm), 100x @10um (1/100 mm). Diameter of bearing place: 63mm (2-1/2inch); Total height: 240mm (9-1/2inch); Working distance: 20x @15mm (9/16inch),40x @16.5mm (5/8inch), 100x @ 7.5mm (5/16inch); Field of view: 20x @ 8.5mm, 40x @4.2mm, 100x @1.8mm. Focusing adjustment range (stroke) 32mm (1-1/4inch); Illustration: penlight (2 AAA batteries not included). Material: alloy and optical glass lenses.
B08S75LLYL Price: $1220 Score: 5.917 Category: Electronics Rating: 5 Votes: 1 Find similar products Omegon Apochromatic Refractor Pro APO AP 72/400 Quintuplet OTA. Five lenses, double ED and a flat field of view to marvel at What is it that drives astrophotographers time and again? The desire to capture objects and the sky in high quality. With this apochromat, you can do just that. The specially selected ED glass and a colour-pure image result in observations displaying fine details that would not be possible with basic optics. Experience a new standard of quality for yourself. The highlights at a glance: - 72mm quintuplet ED Apo with five lenses, two of which are made of ED glass for an even more brilliant image - A two-lens integrated corrector ensures a flat and illuminated field, also suitable for full-frame cameras with an image circle of up to 44mm - 3 focuser with a 1:10 reduction ratio: Easily focus larger and heavier cameras with high precision - 140mm back focus - Camera rotates 360° so you can find the right orientation Why these optics reveal more details No more images without contrast. This apochromat shows what is really possible: pure-colour and high-contrast observations and astrophotos. The key is a sophisticated optical design with premium ED glass for a crystal-clear image. Compared to most mirror systems, the better-defined optics allow you to see more and finer details when observing the planets, for example. All surfaces of the lens elements are treated with an effective multi-coating to prevent reflections. Enjoy memorable observations and shots. Large focuser with gearing and ball bearings Full-frame enthusiasts need space: That is precisely what the geared focuser offers. It beautifully complements the premium o.	B000P5XLEW Availability: Currently unavailable Score: 5.747 Category: Electronics Rating: 4 Votes: 11 Find similar products Meade 90 Az-Adr 90mm A-Series Alt-Azimuth Refractor Telescope. Meade 90az-adr / 04085 90mm a-series equatorial reflector telescope 90mm 2.5 equatorial reflector design; 910mm focal length f/8;rack & pinion focuser; equatorial mount with slow-motion controls;setting circles; latitude control with scale; two 1.25 eyepieces ma9mm, ma25mm;red-dot viewfinder; aluminum tripod with accessory tray;astronomical software & instructional dvd.
B07HY9XF2Y Availability: Currently unavailable Score: 5.682 Category: Electronics Rating: 5 Votes: 2 Find similar products Leica 8x56 Geovid HD-B 3000 Rangefinder Binocular. The new Leica geovid HD-B 3000 and HD-R 2700 models for the first time ever allow linear distance determination of up to 3, 000 yards (2, 750 meters) and respectively 2, 700 yards (2, 500 meters). both the Leica geovid HD-B 3000 and the Leica geovid HD-R 2700 offer a worldwide unique combination of ABC ballistic, optical quality and ergonomic design. The ballistic measurement values are available in three output formats: holdover, click adjustment and equivalent horizontal range (EHR). barometric pressure, temperature and angle are also included in the measurements and calculate the correct point of aim with the highest precision. With a microSD memory card and the Leica ballistic calculator users can import their individual ballistic parameters to their Leica geovid HD-B 3000 and thus receive measuring data perfectly adjusted to load and calibre. Next to the enhanced distance determination for long distances, both models feature a newly designed LED display, allowing excellent readability of the measured data under any light and weather conditions.	B009WXDIRI Availability: Currently unavailable Score: 5.650 Category: Electronics Rating: 5 Votes: 2 Find similar products Swift Optical M2251B Basic Monocular Compound Microscope, WF10x Eyepiece, 40x-400x Magnification, Brightfield, Tungsten Illumination, Disc Diaphragm, Plain Stage, 110V. The Swift Optical M2251B Basic Monocular Compound Microscope has a 10x widefield eyepiece with pointer, a forward-facing nosepiece with three DIN achromatic objectives that are parcentered and parfocal, tungsten illumination, separate coarse and fine focus, a 0.65 NA condenser with five-hole disc diaphragm, and a plain stage with stage clips. The monocular viewing head has a fixed inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing. An eyepiece pointer is used to identify features for students. A forward-facing nosepiece eases changing objectives. Achromatic objectives provide color correction of magnified images. Parcentered and parfocal objectives ensure that the image stays centered and focused when the magnification is changed. The 40xR objective is retractable and spring-loaded to prevent damage to the slide or objective when focusing, and is sealed to protect against liquids and oils. A basic compound microscope is used in classroom, home school, and hobbyist settings for inspection and dissection of specimens when two-dimensional images are desired. The microscope has lower (diascopic) Brightfield illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. Brightfield (BF) illumination allows the specimen to absorb light, resulting in a dark image on a light background. The tungsten (incandescent) light source provides bright light. A disc diaphragm controls the amount of light illuminating the specimen. The plain stage has an opening for light transmission, stage clips to secure the slide or specimen in place while viewing, and pre-drilled holes that accept a mechanical stage (sold separately). Separate coarse and fine focus knobs speed focusing. A slip clutch prevents excess pressure from damaging the slides or objectives, a stage stop prevents the stage or specimen from coming into contact with the objectives, and a focus tension control prevents stage drift. Microscope Head and Optics Specifications HeadMonocularMagnification range40x-400xHead inclination45 degreesEyepiece (18mm)WF10xNosepieceForward-facingObjectives, DIN achromatic, parcentered, parfocal4x, 10x, 40xR (sealed, retractable) Microscope Illumination and Stage Specifications Focus typeSeparate coarse and fineCondenser0.65 NALight sourceTungsten, 20WDiaphragmDisc, five-holeIllumination typeBrightfieldStage typePlainStage dimensions120 x 115mm (W x D)Power110V W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. Swift Optical Instruments manufactures microscopes and weather instruments. The company, founded in 1959, is headquartered in Schertz, TX. What's in the Box? Swift Optical M2251B Basic Monocular Compound Microscope WF10x eyepiece, 18mm Swift Optical M2251B Basic Monocular Compound Microscope WF10x eyepiece, 18mm 4x DIN achromatic objective 4x DIN achromatic objective 10x DIN achromatic objective 10x DIN achromatic objective 40xR (sealed, retractable) DIN achromatic objective 40xR (sealed, retractable) DIN achromatic objective Dust cover Dust cover Instructions Instructions.
B08F9SCYQJ Availability: Currently unavailable Score: 5.587 Category: Electronics Rating: 4 Votes: 5 Find similar products Laipi Precise Targeted Viewfinder, Red Dot Finder Scope Astronomy Finderscope for 80EQ 80DX 90DX SLT Telescope Binocular Monocular Drop Shipping. Suitable for 80EQ 80DX 90DX SLT.	B07H7WK12J Price: $69.99 Score: 5.556 Category: Electronics Rating: 4.1 Votes: 17 Find similar products MEOPTEX 1.25-8-24mm ZOOM eyepiece,FMC for Telescope with T-Thread. There are a number of things that you will thoroughly enjoy as an owner of this 1.25 8-24mm Zoom Eyepiece which is specifically designed for both visual and photographic use. Equipped with a generous 40° to 60° field of view and a non-click stop adjustment mechanism, this eyepiece allows smooth transitioning between focal lengths, ensuring that the observer can find the perfect combination of field of view and magnification that the target object and seeing conditions will allow. Eyeglass wearers will also find that this eyepiece’s long 15mm to 18mm eye relief combined with a flip down rubber eye guard ensures that even they can easily take advantage of the many benefits provided by this eyepiece’s high quality multi-coated optics and zoom capability. Continuous focal length zoom of 8mm to 24 mm for a wide range of magnification without the need to switch eyepieces.Parfocal over entire range, so no need to refocus as focal length is changed. The eyepiece is threaded at the top for a T-adapter (standard M42x0.75 male thread) and at the bottom for 1.25” filters (standard M28.5x0.6 female thread), enabling owners of any T-thread mountable camera to photograph the planets, the moon and high powered terrestrial targets at broad range of focal lengths.