Scope Glass
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Cole-Parmer specialty infrared thermometers for glass; sighting type; scope
Sale Price: $2,940.00  |
DescriptionSpecialty infrared thermometers have optimized spectral responses for glass, plastics, or metals applications. The glass model is designed for use in glass manufacturing. Use the plastics models in thin film (under 0.4 mm) plastics applications such as lamination and film orientation. The metals models are ideal for forging, forming, and extruding operations. Note: The metals models are not recommended for use with aluminum. Each model provides a precise sighting system. The glass model 39800-40 and metals model 39800-46 feature scope sighting. They have a through-the-lens optical system and a circular reticle to precisely define target area. The plastics models 39800-42 and -43 and metals models 39800-47 and -48 feature single lasers that indicate the center of the area you are measuring. Choose from two laser types-class IIIa laser models for maximum brightness, or class II models where regulations require use of low-power lasers. Lock the trigger for long-term monitoring. Store up to 100 temperature readings at selectable time intervals with built-in clatalogger. Configure output as either RS-232 or as a one millivolt per degree analog output (cables and software sold separately below). Thermometers display minimum, maximum, differential temperature, and average temperature in °F or °C and feature adjustable emissivity and memory recall. Other features include backlit display and an audible and visual alarm that signals overrange and underrange temperature conditions. Each thermometer includes four AA batteries, padded nylon carrying case, shoulder strap, and instructions. Adapters for 115 or 230 VAC operation are available-order below. Shpg wt 5.0 lb (2.3 kg). Features
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Spotting Scopes Terminology - Best Spotting Scopes For Birding
Spotting Scopes Terminology
Spotting scopes are used when more magnification is needed or wanted than binoculars provide. Spotting scopes are used widely for birding, viewing wildlife and landscapes and other objects at a great distance. Much of the terminology and technical specifications specific to spotting scopes are similar to binoculars. For example, a 20-60x82 spotting scope has a zoom magnification range of 20-60x (20 to 60 times larger than the size of an image as would be seen by the naked eye) with a front lens diameter of 82mm.
The significant increased magnification of spotting scopes can take you well beyond the capabilities of conventional binoculars. That said, two factors, the atmosphere and the optical system of the spotting scope, should be kept in mind. Heavy air, dust, humidity, glare and wind and air currents during the day can all reduce image quality and the greater the magnification, the more drastic the reduction in image quality will be. Few locations allow you to use more than 60-80x during the day, so most spotting scopes stop at 60x. The optical system of a spotting scope will impact magnification also. As magnification is increased, some decrease in image quality will result, no matter the model. In this key area, as the old saying goes...you get what you pay for. So yes, if you want a spotting scope that is as clear and sharp at 60x magnification as it is at 20x, then expect to pay more. Keep in mind though that most spotting scopes are used at lower magnifications, usually around 30x-40x. This is more than enough for most applications and all but the least expensive and cheapest model will produce reasonable images in this magnification range.
Objective Diameter
Assuming that you are comparing two models of similar quality, the larger the objective lens, the more detail you can see and the better image quality your scope will deliver, especially at higher magnifications. However, a large lens of mediocre quality, no matter how large, will never equal the performance of a smaller, quality lens. If you aren't sure, opt for quality, not size.
Close Focus
Although not an absolute necessity, a spotting scope with a close focus of 20 ft or less can be useful, especially if you plan to use a spotting scope with a camera.
Eye Relief
As with binoculars, this is the distance your eye can be from the eyepiece and still see the entire field of view. As a general rule, you will need at least 14mm of eye relief to see the entire field of view with eyeglasses and people with thick glass lenses in their eyeglasses will probably need more.
Waterproofing
While not a necessity, a waterproof scope is terrific to have. The seals in a waterproof model also prevent the infiltration of dust and dirt and therefore add to the lifespan of the spotting scope.
Tripods
Due to its high magnification, handholding a spotting scope and expecting to maintain a clear, non-blurry image is virtually impossible. A spotting scope requires that it be supported to keep it steady. You may be able to sneak by at lower magnifications with a monopod or shoulder stock, but above 40x, you must use a tripod. And the larger and heavier the scope, the larger and heavier the tripod should be. As all spotting scopes are threaded in the same fashion as a camera and therefore should fit on any standard camera or video tripod, unless you prefer, you will not need to purchase a special tripod for your spotting scope.
Best Spotting Scopes for Birding
Most agree that the best magnification range for birding with a spotting scope is 20-40x. Much higher than 40x and the field of view is too narrow to be practical, with the added drawback of a dimmer image. Keep in mind that problems such as heat waves will increase at higher magnifications. If you do a lot of dawn or twilight bird observation, or if your area is often overcast and dim, a wider objective lens will give you a better image. So you will want to choose a lens of 77-82mm. However, a larger objective lens also translates to increased size and weight. Birders who are out mostly during the day and don't relish the thought of carrying a heavier instrument will want to consider an objective lens size of 60-65mm.
Support Staff - the Outdoor Nature Resource.com
Optics from theOutdoor Nature Resource.com
About the Author
why are sniper scopes so long looking?
ive seen pictures of sniper scopes and wondering what that is. is it so there is no reflection from the glass? what are they called?
what you are referring to is called a sunshade, a long piece of plastic that extends past the objective lens in order to keep glare off the lens. To properly block reflection, though, you need a mesh filter that keeps sunlight from bouncing off and exposing your position. Here is an example of one of those:
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=723142
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 Barska Magnus 390x65 ED Glass Spotting Scope  US $349.99
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 Barska Magnus 560x80 ED Glass Spotting Scope US $449.99
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Cole-Parmer specialty infrared thermometers for glass; sighting type; scope
Sale Price: $2,940.00 |
DescriptionSpecialty infrared thermometers have optimized spectral responses for glass, plastics, or metals applications. The glass model is designed for use in glass manufacturing. Use the plastics models in thin film (under 0.4 mm) plastics applications such as lamination and film orientation. The metals models are ideal for forging, forming, and extruding operations. Note: The metals models are not recommended for use with aluminum. Each model provides a precise sighting system. The glass model 39800-40 and metals model 39800-46 feature scope sighting. They have a through-the-lens optical system and a circular reticle to precisely define target area. The plastics models 39800-42 and -43 and metals models 39800-47 and -48 feature single lasers that indicate the center of the area you are measuring. Choose from two laser types-class IIIa laser models for maximum brightness, or class II models where regulations require use of low-power lasers. Lock the trigger for long-term monitoring. Store up to 100 temperature readings at selectable time intervals with built-in clatalogger. Configure output as either RS-232 or as a one millivolt per degree analog output (cables and software sold separately below). Thermometers display minimum, maximum, differential temperature, and average temperature in °F or °C and feature adjustable emissivity and memory recall. Other features include backlit display and an audible and visual alarm that signals overrange and underrange temperature conditions. Each thermometer includes four AA batteries, padded nylon carrying case, shoulder strap, and instructions. Adapters for 115 or 230 VAC operation are available-order below. Shpg wt 5.0 lb (2.3 kg). Features
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Ute Lemper - Punishing Kiss
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DescriptionDespite her roles in mainstream musicals such as Cats and Chicago, Ute Lemper has never been a typical Broadway baby. Her long association with the works of Kurt Weill and Bertolt Brecht, as well as her one-woman shows based on the repertoires of Edith Piaf and Marlene Dietrich, has always marked her as a maverick in a world overpopulated by bland belters and cute ingénues. Lemper's distinctive voice isn't an instrument for easy listening. At full tilt, it's dangerous and edgy. In subdued mode, it's dark, ironic, and despairing. The cruelty that runs through many of her interpretations is taken on the chin. Lemper deals in defiance rather than submission. With just one, edgily updated Weill song ("Tango Ballad") and a host of contributions from Nick Cave, Elvis Costello, Tom Waits, Philip Glass, and the Divine Comedy's Neil Hannon, Punishing Kiss is a modern, bleak look at love in the 21st century. At times the tone is murderous, even apocalyptic ("The Case Continues"). The duet "Split," sung with Hannon, is a grimly humorous riot of punches and counterpunches in a disintegrating relationship. There's fleeting, poignant beauty too, in tracks like Waits's "Purple Avenue." Essential listening for anyone who likes their torch songs blood-stained, not just dampened by a few tears. --Piers Ford LEMPER UTE PUNISHING KISS Features
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Black Metal 290 Degree Wide Angle Peephole Door Viewer Scope
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DescriptionReplace your existing or purchase your first peephole with one of our 290 degree view door viewer. Having the most expensive security system is of no use if you open your door to somebody you don't know. Don't put yourself and your family at risk. WARNING! Don't be fooled by an imposter selling this product other than New-Vue that are claiming to be New-Vue Brand and are selling for $1.99 they are poor quality copies and you will be cheated. Features
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Smith & Wesson SW911B First Respon Knife with Magic Assisted Opening Serrated Blade, Black
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DescriptionATTRIBUTES Blade Detail: ComboEdge Blade Length (inches): 3.50 Blade Material: Stainless Black Carry System: Pocket Clip Handle Material: Nylon Lock Style: Button Lock Overall Length (inches): 8.30 Special Features: Glass Breaker Features
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Wide Angle Peephole Door Viewer Doorscope 2- 3/8" Silver Metal
Sale Price: $24.99 |
DescriptionThese Wide angle door viewers are made of high quality aluminum with a polished finish. They are manufactured with the highest quality prisms and optical lenses available. Unlike competitors which use ordinary glass lenses and inferior prisms which makes a clouded image. We use only the highest quality material available. Each door viewer comes with its own installation instructions. For an easy installation. Features
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Night Owl Pro Nexgen Night Vision Binocular (5x)
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DescriptionNight Owl NOB5X 5.0x NexGen Night Vision Binoculars with 50mm Lens The highest magnification binocular available, Night Owl Optics' 5-power binocular is an advanced, highly acclaimed generation-1 binocular. The aesthetics, ergonomics, and performance of this instrument are high-quality and recommended by the manufacturer for those who demand the highest performance that generation-1 technology can offer. A central focusing wheel allows for quick and easy focusing of both objective lenses simultaneously. And Night Owl's proprietary interocular hinge guarantees you that both optical channels are always centered precisely over each eye. Features: 5x magnification Adjustable focus with central focusing mechanism Two high-quality generation-1 image intensifier tubes Adjustable interocular distance centers the dual optical channels precisely over each eye Built-in columnated infrared illuminator for use in complete darkness or to improve target recognition in any environment Objective and ocular lenses constructed of high-quality all-glass optics Soft-touch rubberized finish Impact-resistant molded thermoplastic lens housings Padded neck strap Specifications: Magnification: 5x Objective Optic Design: manual focus Lens Diameter: 50 mm Resolution: 35 lp/mm on center Spectral Sensitivity: 400 nm to 900 nm Diopter adjustment: +4 to -4 Interocular distance: adjustable from 57 mm to 73 mm Minimum Focal Distance: 3.6 feet (1.1m) Angular Field of View: 12.5 degrees Field of View at 200 ft. distance: 44 feet wide (61m / 13.4m) Dimensions: 8.00 by 5.85 by 2.60 inches (L x W x H) Weight, without batteries: 38 ounces Power Supply: requires (1) 3-volt Type-123 lithium battery (not included) Battery Life: 40 to 80 hours, depending on infrared usage. Infrared Illuminator, built-in Features
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USB Digital Computer Microscope
Sale Price: $23.70 |
Description[Features:] ** Image Max. Resolution: 1.3 Mega Pixel. ** Imaging sensor: Dual Axis 27X & 100X Microscope Lens. ** Magnification Ratio: 10X to 200X. ** Focus range: Manual Focus from 10mm to Inf. ** Color: 24 RGB. ** [Still Image] Formats: JPEG, Resolution: 1280x1024, 640x480, 320x240, 160x120. ** [Movie Clips] Formats: AVI, Resolution: 1280x1024, 640x480, 320x240, 160x120. ** FPS: 30fps under 600 LUS Brightness. ** Light Soucse: 4 LED White Lights. ** White balance: Auto. ** EV compensation: Auto. ** Flicker Freq: 50Hz/60Hz. ** PC interface: USB 2.0. ** Shutter: 1 sec to 1/1000 sec. ** Power supply: 5V DC from USB Port. ** Dimension: 100mm(L) x 33mm(R) //System Requirements: Windows 98SE, ME, 2000, XP. ** Accessories: 1 x Software CD, 1 x Adjustable Stand, 1 x Lens Cap Features
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Pentax 65809 PCF II 12x50 Waterproof Binocular
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DescriptionWith large objective lenses for superior light-gathering and the power of 12X magnification, the PENTAX 12x50 PCF WP II binocular is the perfect companion for observations made at dusk or dawn. Add to that a 219 foot field of view and waterproof construction, and this high-performance model provides superior viewing in even the lowest light conditions and harshest climates. Features
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LensPEN Lens Cleaning System
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DescriptionThis is the Original LensPen Lens Cleaner! A superb tool in optical lens cleaning technology. Perfect for cleaning camera lenses, binocular lenses, small aperture spotting scopes and telescopes, eyepieces, and other optical items. Comes with a handy retractable dust removal brush and a special non-liquid cleaning element, designed to never dry out. Safe and very easy to use. Features
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Nikon 7072 Lens Pen Cleaning System
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DescriptionComes with a handy retractable dust removal brush and a special non-liquid cleaning element, designed to never dry out : Safe and very easy to use Features
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