BRESSER Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular

Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular

Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular

B&H # BRAR102S00 MFR # BR-AR102S-00
BRESSER Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular

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Expected availability: 7-14 business days

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Value: $9.99

Product Highlights

  • 102mm f/4.5 Doublet Refractor Telescope
  • Anti-Reflection Fully Multicoated Optics
  • 2" Focuser with 1.25" Eyepiece Adapter
  • 20mm Eyepiece with 70° FoV
  • Alt-Az Mount with Stainless Steel Tripod
  • 7x50 Porro-Prism Binocular
  • Anti-Reflection Multicoated Optics
  • 681' FoV, 56° AFoV
  • Twist-Up Rubber Eyecups
  • OTA/Telescope and Binocular Carrying Bag
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  • 1Description

The Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular from Explore Scientific gives you all you need for a night of wide-field sky viewing with a telescope and tripod, binoculars, and carrying bags for everything. The 102mm telescope utilizes a doublet refractor lens system to virtually eliminate chromatic aberrations for true color transmission across the entire field of view. Fully multi-coated optics maximizes the amount of light entering the optical tube assembly (OTA) for bright and clear viewing. The telescope is equipped with a 2" rack-and-pinion focuser to accept large eyepieces, and a 1.25" adapter to use the more common size eyepieces. An Alt-Az mount lets you quickly move and aim the telescope and the included adjustable height stainless steel tripod provides a solid platform for viewing. A backpack is included for the OTA and accessories, and the tripod straps to the side for easy transportation away from light pollution.

For comet and meteor shower viewing, a 7x50 porro prism binocular comes with the telescope. The 7° angle of view translates to a 56° apparent field of view for wide and expansive views of the night sky. Multi-coated optics increase light transmission for brighter and clearer images, especially when viewing at night. The binocular is tripod mountable with an optional adapter for long-term viewing. As with the tripod and mount, the binocular also comes with a carrying bag and strap.

Telescope
Optical Performance:
  • 102mm objective
  • 459mm focal length
  • Doublet Refractor-style optical design
  • Doublet lens system virtually eliminates chromatic aberrations
  • Anti-reflection fully multi-coated optics
Focuser and Eyepiece:
  • 2" Rack-and-Pinion focuser with 1.25" eyepiece adapter
  • 20mm 70° Series 1.25" eyepiece with a 3° true field of view
  • Eyepiece produces 23x magnification
Tripod and Mount:
  • Manual Alt-Az mount
  • Stainless steel 2-stage tripod with accessory tray
  • Tripod adjusts from 27 to 47"
  • Rounded spikes on feet for a firm grip
  • Back-pack bag for OTA and tripod
Binocular
Optical Performance:
  • 7x magnification
  • 50mm objective lens
  • Porro prism optical design
  • Anti-reflection multi-coated optics
  • 56° apparent field of view, 7° actual
  • 681' field of view at 1000 yd
Use and Handling:
  • Center focus wheel
  • Right eye dioptric adjustment
  • Twist-up rubber eyecups
  • Tripod mountable with optional adapter
  • 7.1mm exit pupil
UPC: 812257014026
In the Box
Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular
  • 102 mm Doublet Refractor Telescope
  • Stainless Steel Tripod and Mount
  • Telescope/Tripod Bag
  • 1.25" Eyepiece Adapter
  • 7x50 Binocular
  • Lens Cloth
  • Binocular Carry Case
  • Binocular Neck Strap
  • 2 x Ocular Lens Covers
  • 2 x Objective Lens Covers
  • Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration
  • Table of Contents
    • 1Description
    Optical Design Doublet Refractor
    Aperture 102 mm
    Focal Length 459 mm
    Focal Ratio f/4.5
    Eyepiece Barrel Diameter 2"
    Diagonal None
    Finderscope None
    Tripod Adjustable height 2-section
    Stainless steel legs
    Max height: 47" (119.4 cm), min height: 27" (68.6 cm)
    Payload capacity: 12 lb (5.4 kg)
    Mount Type Alt-Az
    Power Source None
    Optical Tube Dimensions 4.0 x 20.1" (10.2 x 51.1 cm)
    Weight OTA: 6 lb (2.7 kg)
    Tripod/Mount: 5 lb (2.3 kg)
    Binocular
    Prism Type Porro
    Magnification 7x
    Objective Lens Diameter 50mm
    Angle of View
    Field of View 681' @ 1000 yd (226.5 m @ 1000 m)
    Minimum Focus Distance 16.5' (5 m)
    Exit Pupil Diameter 7.1 mm
    Eye Relief 2.2" (5.6 cm)
    Interpupillary Adjustment 2.4 - 2.9" (6.0 - 7.3 cm)
    Dioptric Correction Not specified by manufacturer
    Focus Type Center
    Tripod Mount Yes. Adapter required
    Dimensions 7.3 x 7.0 x 3.0" (18.4 x 17.8 x 7.6 cm)
    Weight 26.5 oz (751 g)
    Packaging Info
    Package Weight 26.55 lb
    Box Dimensions (LxWxH) 29.5 x 20.0 x 9.0"
    Bresser AR102S Comet-Series Telescope Kit with Bag and Binocular is rated 3.8 out of 5 by 4.
    Rated 3 out of 5 by from It Got Doublet Objective Lens! it is as basic as you can get. you just set it up and aim it, even it holds on its own without any need to clamp it whatsoever. It got built in diagonal that is collimatible. The 102mm aperture doublet lens is the crown jewel of the whole work here as it pulls blue, green and red wavelength together in lockstep as it hits your EP of your own choice. It doesn't lie with the color of the stars you are gazing. It gives me confidence to add 1.25 10mm Bresser 70series despite it unknown eye relief measurement as well as Orion 2x Shorty 1.25 Barlow. the focuser can handle 2 EP and barlows but it is not worth the extra weight and inbalance. If you insist on using lower power 25mm or wider EP for lower magnification below 20x then you will appreciate the wider barrel of 2 inch more. Since this telescope is a short focal ratio of 4.5, the 20mm 1.25 EP included in this will give you 23x so you will be more likely to want better magnification with 15, 10 or even 5mm 1.25 EP for up to around 92x. I believe that it is impractical to push above 100x as the light will start to dim and the focus harder to achieve due to short focus window.
    Date published: 2015-04-07
    Rated 4 out of 5 by from Nice kit Don't let the price fool you, the OTA/focuser together are worth $250 in my opinion. Binoculars were blacking out until I twisted the eye cups up then they were perfect. I couldn't get a good focus then I spun the right diopter and voila, perfect. Mount/tripod is way too short for me unless Im sitting but it's a good height for young children. Probably even too short for a lot of teens. I bought this for my kids so that's ok. Optics were good, ep that comes with it is nice and sharp. All in all there isn't much to complain about, it's more than sufficient as an inexpensive yet worthy set up, although I may have to buy a taller mount if I want to use it myself or if my 13 year old gets any taller!
    Date published: 2016-09-05
    Rated 4 out of 5 by from Nice lightweight grab and go scope A nicely put together package that is easily transported. Only uses 1.25 eyepieces despite description saying otherwise, but focused tube is 2. Binocs and backpack surprisingly well built, tripod is light and smooth with adjustments for alt/as tension. Beautiful coatings on binocs, scope objective. Scope is tricky to collimate using typical 3 screw arrangement plus a fourth hex screw in center of knurled brass nut at rear for rotating the diagonal mirror to proper alignment with focuser. Telrscope is metal tube and high quality construction, with adjustable rack and pinion tension for very smooth focusing. Views are bright and impressive with very wide field. No finder scope needed with the side field of the 20mm included eyepiece. I needed something light with good quality. I really enjoy using the binocs to spot an object, then easily spotting it in the scopes wide field. Happy owner.
    Date published: 2016-01-06
    Rated 4 out of 5 by from A mixed bag of fun There aren't too many reviews of this scope out there, I only came across a handful but this scope intrigued me so I gave it a shot. Let me get to the bad right away but please keep reading. The scope I received came in damaged. It wasn't B&H or UPS, this must have happened with the manufacturer. The secondary mirror was badly out of alignment and chipped. The plastic screw for the finder scope was snapped off and there were a few other telltale signs of rough handling or assembly. The scope was so bad when it arrived I almost returned it. You could not attain sharp focus at all with scope; stars were blurs and everything had a very fishbowl appearance. However I think I was able to correct the problem. I still might return it pending another evening of stargazing to see if I fixed the issue. To correct the initial faults I took the secondary mirror out and found that it was not seated correctly during assembly or had suffered a solid whack during transit. Cleaning the mirror and dusting off the chipped end and reseating it seemed to have solved most of the issues. Further culmination might correct the remaining. I'm hopeful. So, on to the good. The first this is that the optical tube is aluminum and fairly solid. The objective lens is clearly multi-coated and set deep inside the tube which is great for contract. The focuser is a 2 rack with a 1.25 adapter which absolutely can be removed. There has been some back and forth on this and the correct answer is yes, you can remove the adapter and use the 2 if you were so inclined. The tripod is sturdier than I was expecting and extends up to around 5' or so; comfortable enough for me (over 6') to view low objects without hunching over. The Alt-Az base is ok, I wish there was an altitude tension screw and I fear it loosing over time but we'll see. The bag is nice and thinly padded and holds the package fairly well, not much to say there. Overall I was surprized at how well engineered this whole kit is (despite my very poor initial impression), especially for the cost. Optics after fixed the problem with the secondary mirror were actually pretty good. A lot of chromatic aberration still but I think I need to tweak the alignment a little... easily done with the 3 screws on the back. I ran the scope through a few objects with a variety of eyepieces to see if my fix did the trick and I was actually impressed. The Orion nebula, The Pleiades, and the Andromeda galaxy all looked good through the supplied 20mm eyepiece. The Pleiades and a were really awesome through the Celestron 40mm Plossel, a very inexpensive eyepiece which I'd highly recommend for this type of scope. I cranked up the view on the Orion Nebula with a 13mm and 10mm Luminos eyepiece and wasn't disappointed there either. To be honest a 10mm eyepiece might be the highest maginification you're going to squeeze out of this scope. Even factoring in the mirror being slightly out of alignment you could tell you were getting close to the limit. But, a rich field f4.5 scope is meant for wide views anyways ... yeah, pick up the 40mm Celestron eyepiece and you won't be sorry. Over all I think this might turn out to be a fun grab and go scope. Easy to setup and decent clean views. I was tempted to give it 3 stars because of the initial problems but that's not a fair review of a working scope. I bet that if you get one clean in the box without my initial problems you'd agree this is a fun little scope ... 4.5 stars.
    Date published: 2017-03-24
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