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Details on Watchport/v USB Camera Lenspack 3MM Wide 8MM Close-up 12MM Tele
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Weight: 0.5lb
Whiter and brighter images. Simply put, that is the benefit the Everbrite mirrorcoating. This exotic, dielectric, nonmetallic coating is 99% reflective across the full visual spectrum, resulting in the "whitest," most natural image available. The coating is painstakingly applied to Pyrex with a surface accuracyof a 1/10 wave flatness. The Everbrite is offered in both 1{1/4}" and 2" models. Thediagonal bodies of each are machined from solid blocks of aluminum. In this way we can insure permanent alignment. The ...Details on Tele Vue 90{degrees} Everbrite Diagonal 1.25" with Brass Clamp Ring.
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Focal Length: 450mm - Lens Aperture: 4f-stops
The 1.5x teleconverter (also known as a tele-extender) will multiply the focal length of the existing lens by 1.5x, and will cut back the amount of light by one f/stop. For example, using a 1.5x teleconverter with a 300mm lens will effectively increase the focal length to 450mm. A lens set to f/2.8 will now be f/4. This DG teleconverter has upgraded Gate-Array IC circuitry to work better with digital SLR's and some of the digital SLR lenses*. This means that the converter's unique circuitry maintains signal ...Details on Kenko 1.5x DG AF Teleplus Teleconverter for Minolta/Sony
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Weight: 1.5lb
When Tele Vue designed the Radian series of eyepieces, Tele Vue used the Nagler concept as the basis. However with the Radians, Tele Vue decided to balance size, weight, and cost relative to a consistent 20mm eyerelief. During the design process Tele Vue found that we could not only balance these factors for 1.25" focussers, but improved glass types lead to better imaging, contrast enhancement, reduced pincushion, ghost suppression, and a newer concept in a click-stop adjustable eyeguard as well.Applying that ...Details on Tele Vue 12mm Nagler IV Eyepiece, fits 2" & 1.25".
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Lithium Ion
Quantum Tele Battery. This is a 3 Volt, Lithium BatteryIn Stock
$17.99
$14.57Optical Zoom: 2X - Focal Length: 300mm
The 2x teleconverter (also known as a tele-extender) will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6. Teleconverters are not recommended for lenses wider than 50mm, e.g. 28-105mm. However, full AF operation is only possible with lenses with open aperture of f/2.8 or brighter. Please be aware that AF ...Details on Tamron 2X AF Teleconverter for Canon EOS
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Lithium Ion
Canon Prima Tele Date Battery. This is a 3 Volt, Lithium Battery . Dimensions: 0.88 x 0.88 x 0.12.Details on Canon Prima Tele Date Battery
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Weight: 3.2lb
Add to any 2' eyepiece for dramatically improved resolving power – or use the 1.25' adapter to enhance smaller oculars. 2x power multiplier2' barrel sizeFour-element optical designIncludes 1.25' adapterFlat field-of-viewPremium grade optical glassIndividually tuned multi-layered coatings for maximum light transmission and highest contrastLens edges and all internal metal surfaces are blackened to maximize image contrastMaintain the comfortable eye relief of longer focal length eyepieces while increasing ...Details on 2x ULTRA TELE EXTENDER (2")
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Lithium ion
Sure Shot 80 Tele Battery. This is a 3 Volt, Lithium BatteryIn Stock
$17.99
$14.57Optical Zoom: 2X - Focal Length: 300mm
The 2X tele-converter (also known as a tele-extender) will multiply the focal length of the existing lens by 2X, and will cut back the amount of light by 2 f/stops. For example, using a 2X tele-converter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6. Tele-converters are not recommended for lenses wider than 50mm, e.g. 28-105mm. However, full AF operation is only possible with lenses with open aperture of f/2.8 or brighter. Please be aware that AF ...Details on Kenko 2X Teleplus MC4 DG Teleconverter for Pentax AF
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Details on Tele Vue 41mm Panoptic 2" Eyepiece.
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Lithium Ion
Sure Shot Tele Max Battery. This is a 3 Volt, Lithium BatteryIn Stock
$17.99
$14.57Details on Minolta AF Tele QD Battery
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Focal Length: 450mm - Lens Aperture: 4f-stops
The 1.5x teleconverter (also known as a tele-extender) will multiply the focal length of the existing lens by 1.5x, and will cut back the amount of light by one f/stop. For example, using a 1.5x teleconverter with a 300mm lens will effectively increase the focal length to 450mm. A lens set to f/2.8 will now be f/4. This DG teleconverter has upgraded Gate-Array IC circuitry to work better with digital SLR's and some of the digital SLR lenses*. This means that the converter's unique circuitry maintains signal ...Details on Kenko 1.5x DG AF Teleplus Teleconverter for Canon EOS
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Details on Omni XLT 150 5.9" / 150mm Newtonian Reflector kit Omni XLT 150 5.9" /150mm Newtonian Reflector Tele
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Weight: 1.5lb
Increase your eyepiece's magnification power by up to five times with this indispensable four-element attachment. 5x power multiplier1.25' barrel sizeFour-element optical designFlat field-of-viewPremium grade optical glassIndividually tuned multi-layered coatings for maximum light transmission and highest contrastLens edges and all internal metal surfaces are blackened to maximize image contrastMaintain the comfortable eye relief of longer focal length eyepieces while increasing the magnificationThis ...Details on 5x ULTRA TELE EXTENDER (1.25")
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Lithium ion
Sure Shot Tele Max Date Battery. This is a 3 Volt, Lithium BatteryIn Stock
$17.99
$14.57Optical Zoom: 2X - Focal Length: 90mm
The Tamron SP AF Pro teleconverter features improved optical construction, and is designed to be used with lenses that are f/2.8 and of focal lengths of 90mm or greater. The 2x teleconverter (also known as a tele-extender) will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6. Teleconverters are not ...Details on Tamron SP 2X Pro Teleconverter for Canon EOS
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Lithium Ion
Canon Sure Shot 80 Tele Battery. This is a 3 Volt, Lithium BatteryIn Stock
$17.99
$14.57Weight: 1.5lb
Attach to any standard 1.25' eyepiece for greater resolving power and sharper higher contrast images. 3x power multiplier1.25' barrel sizeFour-element optical designFlat field-of-viewPremium grade optical glassIndividually tuned multi-layered coatings for maximum light transmission and highest contrastLens edges and all internal metal surfaces are blackened to maximize image contrastMaintain the comfortable eye relief of longer focal length eyepieces while increasing the magnificationThe key to the ...Details on 3x ULTRA TELE EXTENDER (1.25")
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