Explore Scientific 152mm f/6.5 Achromatic Refractor with Accessories

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Explore Scientific 152mm f/6.5 Achromatic Refractor with Accessories
Item # ES-DAR152065-01
  • The Explore Scientific AR152 is 6" f/6.5 air-spaced doublet achromatic refractor telescope with multi-coatings.
  • Rigorously tested before it leaves the factory. Tests include visual inspection as well as interferometric computer evaluation.
  • The Explore Scientific AR152 f/6.5 Air-Spaced Doublet Achromat Refractor includes a 2" focuser and 2" 99% reflectivity diagonal, and 8X50 Straight Finder Scope.


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

The Explore Scientific AR152 (six inch) f/6.5 Air-Spaced Doublet Achromat Refractor, with its larger aperture optics gathers 44% more light over the AR127 (five-inch) model, providing much brighter images and higher resolution. The goal was to provide an extreme value by providing true diffraction-limited optics at a price that will allow more people to explore the sky with a wide-field large aperture refractor. Images of deep sky objects are stunning at low powers. At high power the moon and the planets are revealed in sharp, high contrast.

Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series has standard hardware which includes a precision 10:1 two-speed focuser, a 2-inch diagonal, and an 8x50 finder scope.

The optics in their collimatable lens cell are fully multi-coated to eliminate light scatter and maintain image contrast. We precision collimate every Explore Scientific telescope at our factory to give optimum performance. Although you may never need to adjust optical alignment, the AR Series allows for collimating the lens set should the telescope ever require it.

Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light.

Deluxe 10:1 Two-Speed Focuser...
The Explore Scientific Air-Spaced Doublet AR Series telescopes include a precision 2-inch ten-to-one, two-speed as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring.

On those pristine nights of steady seeing, Saturn's Rings can forever affect the hearts and minds of almost anyone who lays eyes on them. It's nights like these that astronomers like to set up their refractor telescopes and push the magnification to the limits, not only to see the magnificence of the planet at greater scale but to really test the optical and mechanical quality of the telescope.

Many telescopes are only supplied with a standard single-speed focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration. Now included as standard equipment on all Explore Scientific AR Series telescopes is a ten-to-one, two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus. We think you'll agree that such precision is worth it.

Universal Mounting Plate...

The Universal Adjustable Mounting Plate of the AR 152 fits on many popular equatorial and Alt-Az mounts, including mounts supplied by Explore Scientific, Vixen, and Meade LXD55/75.

Instead of using a cast metal part, Explore Scientific's Universal Mounting Plate is made from extruded aluminum for added strength. It is, after all, what secures your telescope to the mount. Also included are adjustment screws and locking bolts to allow adjustments to position the angle of the telescope when it is placed on its mount, an important feature when using an equatorial mount.

2" 99% Reflectivity Diagonal Mirror...

The Two Inch Dielectric Diagonal includes a 1.25" eyepiece holder adapter. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle.

Provided as standard equipment, Explore Scientific's Two Inch Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment.

8x50 Finder Scope....

The Explore Scientific 8x50 Finder Scope provides a true field of view of 6. Its coated optics provide a bright high-resolution image so that many faint stars and nebulae can be detected for precise aiming.

The front objective can be custom focused to provide a sharp image every time.

Explore Scientific Product Number: DAR152065-01

Additional Information

Additional Information

SKU ES-DAR152065-01
UPC Code 812257011032
Manufacturer Explore Scientific
Telescope Series Explore Double Achro
Optical Design Refractor - Achromatic
Mount Type None - Optical Tube Only
Warranty Lifetime Warranty
Telescope Aperture 5.99 in.
Telescope Focal Length 988mm
Telescope Focal Ratio f/6.5
Highest Useful Magnification 600x
Limiting Stellar Magnitude 13.4
Optical Coatings Explore EMD
Tube Color or Finish Gloss White
Optical Tube Outer Diameter 6.21 in.
Length of Optical Tube 41 in.
Optical Tube Weight 23 lbs. 8 oz.
Mount Weight N/A
Total Telescope Weight N/A
Dew Shield Included? Yes
OTA Mount Type Dual Rings
Finder Included 8 x 50 Optical Finder
Diagonal Included? Yes - 2" Star Diagonal
Eyepiece(s) Included None
Tripod Type Included None, Sold Separately

Customer Reviews 7 item(s)

Love this scope!
Bought this AR152 last December (2014) after doing a lot of research into trade-offs for best viewing vs size and usability. My original theory was that this would be my rich-field/dark sky scope and that I would get a Maksutov for lunar/planetary use. To my surprise, the image quality at higher magnifications (200x +) is quite good. CA is only an issue on the moon (sometimes) and Jupiter. For these I use a Baader UHC filter - CA gone! No motivation left to get the Mak. Recently I have completed my collection of Explore Scientific 82Deg eyepieces and alI can say is Wow! what a great combination - ultra widefield, high contrast, pinpoint images. This scope and these eyepieces have really rejuvenated my interest in visual astronomy. BTW - In some review I read it was claimed that this scope tends to be a favorite at star parties. I find this is definitely the case. Mounted atop a GEM this scope is quite impressive to all and is a dream for outreach.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by tomb / (Posted on 9/28/2015)
EXCELLENCE for the price
Ordered and replaced three, before I received one with little to no problems. Shipment packs the finder scope in box at bottom so every arrival had broken plastic screws. One scope arrived with a cracked lens. Exp Si has one of the best customer service dept of any scope manufacturer. So if the one you order has a problem call them first. It will save You time. On sale at $600. it could be the bast purchase you ever make. A better scope in 6" can't be found in any format for this price. Better than my 6" RC astro. Pop in a quality eyepiece and you will smile. Not a lightweight though. Tops 25LB with a 2" lens and if you mount on the twilight II, It makes my old arms ache to set up. But well worth the effort for a night outside. Every guest I share it with prefer it to my AT6RC Astro-Tech that is mounted on the other half of my Twlt2, with the same focuser, diagonal and lens. Views of Saturn, Jupiter and Orion Neb are all incredible. Refractor OTA's at three times the price are little better than this amazing scope. And 6" reflectors or Catadioptric are just not as good. A great investment for a small price.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Pickie / (Posted on 4/24/2015)
Surprised at the Trouble Free View
My recent purchase of the ES AR152 ended up being a positive one. So many had said that these short focal length refractors had a myriad of visual problems, but after just one use, I can't imagine anyone knocking this telescope.

The view was sharp and clear. I could not see any odd colouring around stars or planets. Maybe I just don't have a trained eye.

I am using this telescope for visual only, and atop a Celestron AVX mount. Both do well together, and if someone new to astronomy, with a fairly deep pocket wanted something really nice to start out with, this OTA and the mount would be perfect

If you do purchase this combination, you will need an additional 11# AVX counter weight. I failed to realize that, and was delayed a few weeks in using the new telescope.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Astronomynut / (Posted on 1/18/2015)
Wow, this is a big scope!
I have had this telescope for a while now and I love it. It arrived with a damaged focuser, which was repaired promptly by Explore Scientific. They even tuned the focuser for the weight of my camera. I am new to astrophotography but on my first night I got photos of Jupiter and the Orion nebula. These photos will never grace the cover of a magazine, but I got positive results on my first try. I am using a Pentax kx camera, Baader Planetarium Click stop III eye piece with a filter (to reduce fringing) and a Celestron CG 5GT equatorial mount. Good points: it is a big light bucket, it is inexpensive for what you get, and I get great views. On the minus side: it is a big light bucket, this scope is long and heavy so you will not want to lug this beast up mountain, with my eyepiece and camera it tips the scales at about 34 pounds, a bit much for my mount. In summary, this scope has a great wow factor and is fun to use. I have recommended this scope to others and our local astronomy club is looking to get one.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Mark / (Posted on 5/24/2013)
Deep Sky Magic
At low power this scope is superb on Deep Sky objects. Why choose a refractor for this? Because its sharp to the edges unlike a fast Newtonian. With an OIII or UHC Filter The Veil, N.America Nebula, The Helix are all visible. Also Uranus was a blue marble standing out from the stars. Build quality is solid and very nicely finished. The previous reviewer should have left his name at least to justify his comments. I'm sure ES would have rectified his situation which has nothing to do with the scope's performance. Oh and PS a 152 Refractor wow's most people at public events before they even look through it. Amazing fun for $699!
1= Houston, We Have a Problem & 5= It's Out of This World
Review by James / (Posted on 3/1/2012)
Keep looking
Bought directly over phone from Scott Roberts. Arrived with finger prints on lens, scratches on ota, finderscope screws broken, screws missing & severely out of collimation. Scope had astigmatism and severe CA on Jupiter. Like a cloud of purple larger than the planet. Don't waste your $ like I did.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by / (Posted on 11/16/2011)
I picked up this Telescope for Astronomy Outreach for the Cub Scouts.
It is a very nice scope and has given us some great views of Several Deep Sky Objects including The Veil Nebula complex as well as many Galaxy.s and Globular Clusters.
I would recommend this scope for anyone who wants a big refractor that yeilds great views of many objects.
The fit and finish as well as the total build is very nice and the 10:1 focuser tops it all off
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Mark Sibole / (Posted on 6/4/2010)
Included Items

Included Items

  • Explore Scientific AR152 f/6.5 Air-Spaced Doublet Achromat Refractor Telescope OTA
  • Removable Dew Shield
  • Cradle Rings with Handle and Univsersal Saddle Plate
  • 10:1 Two-Speed Focuser 2.0" I.D.
  • 8x50 Straight Finder Scope with Six Point Adjustable Bracket
  • 2" 99% Reflectivity Mirror Diagonal with 1.25 " Adapter
Questions & Answers

Product Questions

Do u sell a case, soft or hard, for the AR152? /Ira 
I have a CGEM mount for my 11 SCT, and want to use it for the ES152 refractor. What dovetail attachment is required to mount the ES152 on the CGEM?
can I use the ES field flattener and also the reducer/flattener with this scope, I read that they both have a backfocus of 55mm. will the 3" reducer work with this scope does it come with a 2 inch barrel as well?
I am looking at this telescope.  What would be an appropriate alt-az (non-computerized) mount for this scope?
I am considering purchasing the specific telescope, What would an appropriate EQ mount for this telescope? 
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