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$Explore Scientific AR152 f/6.5 Air-Spaced Doublet Achromat Refractor$

Explore Scientific AR152 f/6.5 Air-Spaced Doublet Achromat Refractor

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Explore Scientific AR152 f/6.5 Air-Spaced Doublet Achromat Refractor

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Your Price: CAD1,339.00

Retail Price:CAD1,472.58

Your Savings:CAD133.58(9%)

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Part Number:DAR152065-02

Focal Extenders

Field Flatteners / Coma Corrector

Finder Scopes & Accessories

Focuser and Accessories

Cradle Rings

Filters for Visual and Astrophotography

Simulate views with this scope and various eyepieces

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Product Highlights

152mm Aperture
988mm Focal Length, f/6.5 Focal Ratio
Achromatic Doublet Lens System
2" Dual-Speed Crayford-Style Focuser
2" Dielectric 90° Diagonal
Vixen-Style Dovetail Mounting Plate
Mounting Cradle-Ring with Handle
8x50 Finderscope
OTA Only - Mount and Tripod Required

The AR152 152mm Achromatic Refractor Telescope from Explore Scientific features a doublet achromatic lens system which virtually eliminates chromatic and spherical aberrations. This translates to a distortion-free viewing experience with true color rendition across the entire field of view.

The scope uses a heavy-duty 2" Crayford-style focuser. Unlike a traditional rack-and-pinion focuser, a Crayford-style uses a steel rod held tightly against the focus tube. This toothless friction system eliminates backlash and enables ultra-fine precision focusing. The combination of aberration-free optics, precision focusing and a fast f/6.5 focal ratio make this telescope ideally suited for wide-field astrophotography and astroimaging.

A mounting cradle-ring clamps over optical tube assembly (OTA). This lets the user adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balancing, while avoiding interference with other equipment. The scope is offered without a mount or tripod, but a Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle.

Optical Performance

Aperture: 152mm
Focal ratio: f/6.5
Focal length: 988mm
Refractor-style optical design
Low dispersion achromatic doublet lens system
Achromatic lenses eliminate chromatic and spherical aberrations for true color rendition and without distortion across the entire field of view
8x50 non-illuminated finderscope with quick-release bracket

Focuser

2" diameter focuser
Dual-speed Crayford-style
Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash

Mount

User-supplied mount and tripod required
Vixen-style dovetail plate included
Compatible with any alt-az or equatorial mount with a Vixen-style saddle
Cradle-ring assembly for plate allows the scope orientation to be changed based on mount configuration
Integrated carry handle on cradle-ring assembly

Diagonal

One-piece 90° star diagonal for more comfortable viewing, especially nearing the zenith
Diagonal mirror has highly-reflective dielectric coatings for up to 99% light transmission

Specifications

Optical Tube Assembly
Optical Design	Refractor
Aperture	152 mm / 6"
Focal Length	988 mm
Focal Ratio	f/6.5
Eyepiece Barrel Diameter	2"
Diagonal	Yes, 90° Star
Finderscope	Yes
Mounting System	Vixen Style

General
Weight	23.0 lb / 10.5 kg

Packaging Info
Package Weight	32.0 lb
Box Dimensions (LxWxH)	50.5 x 12.0 x 10.5"

Based on Astronomy magazine’s telescope "report cards", scopes of this size and type generally perform as follows . . .
Terrestrial Observation: Observing terrestrial objects (nature studies, birding, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial observing. Scopes with apertures under 5" to 6" are generally most useful for terrestrial observing due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.	No
Lunar Observation: Visual observation of the Moon is possible with any telescope. Larger aperture scopes will provide more detail than smaller scopes, thereby getting a higher score in this category, but may require an eyepiece filter to cut down the greater glare from the Moon's sunlit surface so small details can be seen more easily. Lunar observing is more rewarding when the Moon is waxing or waning as the changing sun angle casts constantly varying shadows to reveal craters and surface features by the hundreds.	Great
Planetary Observation:	Great
Binary and Star Cluster Observation:	Great
Galaxy and Nebula Observation:	Good
Photography:	Yes
Terrestrial Photography: Photographing terrestrial objects (wildlife, scenery, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial photography. Scopes with focal ratios of f/10 and faster and apertures under 5" to 6" are generally the most useful for terrestrial photography due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.	No
Lunar Photography: Photography of the Moon is possible with virtually any telescope, using a 35mm camera, DSLR, or CCD-based webcam (planetary imager). While an equatorial mount with a motor drive is not strictly essential, as the exposure times will be very short, such a mount would be helpful to improve image sharpness, particularly with webcam-type cameras that take a series of exposures over time and stack them together. Reflectors may require a Barlow lens to let the camera reach focus.	Yes
Planetary Photography:	Yes
Star Cluster / Nebula / Galaxy Photography:	Yes

In the Box

Explore Scientific AR152 152mm f/6.5 Achromatic Refractor Telescope (OTA only)

8x50 Finderscope and Bracket

Mounting Cradle Ring

90° Star Diagonal

2"-to-1.25" Reducer Adapter

Objective Lens Cap

Focus Tube Cap

Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration

Explore Scientific AR152 f/6.5 Air-Spaced Doublet Achromat Refractor

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