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  1. 6% offdigi wide close-up tele
    Watchport/v USB Camera Lenspack 3MM Wide 8MM Close-up 12MM Tele

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    Digi International manufactures products and technologies that are cost-effective and easy to use. Digi has been offering the highest levels of performance, flexibility, and quality since 1985.

    Details on Watchport/v USB Camera Lenspack 3MM Wide 8MM Close-up 12MM Tele

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  2. 16% offtelevue everbrite diagonal 25
    Tele Vue 90{degrees} Everbrite Diagonal 1.25" with Brass Clamp Ring.

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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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  3. kenko af teleplus teleconverter
    Kenko 1.5x DG AF Teleplus Teleconverter for Minolta/Sony

    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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  4. 24% offtelevue eyepiece fits 25
    Tele Vue 12mm Nagler IV Eyepiece, fits 2" & 1.25".

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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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  5. 19% offgraflex quantum tele battery
    Quantum Tele Battery

    Lithium Ion

    Quantum Tele Battery. This is a 3 Volt, Lithium Battery

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  6. tamron af teleconverter
    Tamron 2X AF Teleconverter for Canon EOS

    Optical 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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  7. 29% offcanon tele date battery
    Canon Prima Tele Date Battery

    Lithium Ion

    Canon Prima Tele Date Battery. This is a 3 Volt, Lithium Battery . Dimensions: 0.88 x 0.88 x 0.12.

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  8. meade tx barlow mount
    2x ULTRA TELE EXTENDER (2")

    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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  9. 19% offcanon 80 tele battery
    Sure Shot 80 Tele Battery

    Lithium ion

    Sure Shot 80 Tele Battery. This is a 3 Volt, Lithium Battery

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  10. kenko mc4
    Kenko 2X Teleplus MC4 DG Teleconverter for Pentax AF

    Optical 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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  11. televue vue panoptic eyepiece
    Tele Vue 41mm Panoptic 2" Eyepiece.

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    The 41mm Panoptic eyepiece is a big brother to the 24mm Panoptic (largest 1.25" field). With its 46mm field stop, the 41mm Panoptic delivers the largest 2" field possible. An adjustable and removable screw-type top allows quick, comfortable eye positioning. The scalloped shape gives a positive grip. Like all Tele Vue eyepieces, these new models employ matched coatings along with the latest coating techniques to maximize transmission and contrast. Optical and cosmetic inspection of every eyepiece assures you'll ...

    Details on Tele Vue 41mm Panoptic 2" Eyepiece.

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  12. 19% offcanon tele max battery
    Sure Shot Tele Max Battery

    Lithium Ion

    Sure Shot Tele Max Battery. This is a 3 Volt, Lithium Battery

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  13. 29% offqms tele qd battery
    Minolta AF Tele QD Battery
    Minolta AF Tele QD Battery. This is a 3 Volt, Lithium Battery . Dimensions: 0.88 x 0.88 x 0.12.

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  14. kenko af teleplus teleconverter
    Kenko 1.5x DG AF Teleplus Teleconverter for Canon EOS

    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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  15. celestron omni xlt 150
    Omni XLT 150 5.9" / 150mm Newtonian Reflector kit Omni XLT 150 5.9" /150mm ...

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    Omni XLT series features the stable platform of the CG-4 mount and high quality optics. Using aspheric shaping technology in conjunction with hand-figuring the optics the Omni XLT presents an image with virtually no spherical aberration. We also added our famous StarBright XLT coating system to further enhance light transmission.

    Details on Omni XLT 150 5.9" / 150mm Newtonian Reflector kit Omni XLT 150 5.9" /150mm Newtonian Reflector Tele

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  16. meade barlow 25 mount
    5x ULTRA TELE EXTENDER (1.25")

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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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  17. 19% offcanon max date battery
    Sure Shot Tele Max Date Battery

    Lithium ion

    Sure Shot Tele Max Date Battery. This is a 3 Volt, Lithium Battery

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  18. tamron sp pro teleconverter
    Tamron SP 2X Pro Teleconverter for Canon EOS

    Optical 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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  19. 19% offcanon 80 tele battery
    Canon Sure Shot 80 Tele Battery

    Lithium Ion

    Canon Sure Shot 80 Tele Battery. This is a 3 Volt, Lithium Battery

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  20. meade barlow 25 mount
    3x ULTRA TELE EXTENDER (1.25")

    Weight: 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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