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Orion Mini 50mm Guide Scope - a Compact Autoguiding System for Intermediate Astrophotographers to Use with Telescopes up to 1500mm Focal Length
Brand | Orion |
Optical Tube Length | 7 Inches |
Eye Piece Lens Description | None included |
Objective Lens Diameter | 50 Millimeters |
Focus Type | Manual Focus |
Finderscope | Reflex |
Item Weight | 500 Grams |
Focal Length Description | 1500 month |
About this item
- Compact mini guide scope designed for use with astrophotography telescopes up to 1500mm focal length
- Mini 50mm guide scope with bright, wide-field optics puts numerous potential guide stars in view so you'll never have to search for one!
- Adjustable-aim dovetail guide scope bracket installs on virtually any astrophotography telescope quickly and easily
- Very small and compact autoguiding system adds hardly any weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses
- Designed for use with Orion StarShoot AutoGuider (sold separately) and other similar small-chip CCD autoguiders
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This Item Orion Mini 50mm Guide Scope - a Compact Autoguiding System for Intermediate Astrophotographers to Use with Telescopes up to 1500mm Focal Length | Recommendations | dummy | dummy | dummy | dummy | |
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Price | — | $69.99$69.99 | $35.99$35.99 | $149.99$149.99 | $96.99$96.99 | $53.99$53.99 |
Delivery | — | Get it as soon as Tuesday, Mar 26 | Get it as soon as Tuesday, Mar 26 | Get it as soon as Tuesday, Mar 26 | — | Get it as soon as Tuesday, Mar 26 |
Customer Ratings | ||||||
Value for money | — | 4.5 | — | 3.5 | — | 4.2 |
Quality of material | — | 4.5 | — | 4.3 | — | 4.2 |
Accuracy | — | 4.2 | — | 4.6 | — | 4.1 |
Sold By | — | SVBONY Direct | SVBONY Direct | SVBONY Direct | SVBONY Direct | SVBONY Direct |
focus type | Manual Focus | Manual Focus | Manual Focus | Auto Focus | Manual Focus | Manual Focus |
eye piece lens | None included | Kellner | — | Kellner | Prism | glass |
objective lens diameter | 50 millimeters | 40 months | 42 millimeters | 50 millimeters | 50 millimeters | 30 millimeters |
telescope mount | — | Altazimuth Mount | ✗ | Altazimuth Mount | Altazimuth Mount | Altazimuth Mount |
lens coating | — | Fully Multi-Coated | — | Fully Multi-Coated | Multi-Coated | Fully Coated |
weight | 500 grams | 450 grams | 164 grams | 2.4 pounds | 632 grams | 295 grams |
finderscope | Reflex | Reflex | Reflex | Reflex | Reflex | Straight-Through |
optical tube length | 7 inches | 160 millimeters | — | 55.5 millimeters | 185 millimeters | 120 millimeters |
From the brand
Product information
Product Dimensions | 9.75 x 6 x 3.5 inches |
---|---|
Item Weight | 1.1 pounds |
ASIN | B004SFUO9U |
Item model number | 8891 |
Customer Reviews |
4.0 out of 5 stars |
Best Sellers Rank | #100 in Telescope Finder Scopes |
Is Discontinued By Manufacturer | No |
Date First Available | November 1, 2003 |
Manufacturer | Orion |
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Orion 8891 Mini 50mm Guide Scope
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Product Description
Optical design | Refractor |
Optical diameter | 50mm |
Focal length | 162mm |
Focal ratio | f/3.2 |
Coatings | Fully coated |
Resolving power | 3.32arc*sec |
Lowest useful magnification | 9x |
Finder scope | None |
Mount type | Optical Tube without Mount |
Astro-imaging capability | Lunar, planetary & long exposure |
Tube material | Aluminum |
Length of optical tube | 6.8 in. |
Weight, optical tube | 1.0 lbs. |
The Orion-designed Mini 50mm Guide Scope is a complete and compact guide scope solution designed for use with the Orion StarShoot AutoGuider (sold separately) or similar small-chip CCD autoguider devices. The Orion Mini 50mm Guide Scope is ideal for guiding long-exposure astrophotographs with imaging telescopes up to 1500mm in focal length.
Thanks to the high level of guiding accuracy offered by modern autoguider devices such as the Orion StarShoot AutoGuider, astro-imagers of today can use guide scopes with much shorter focal lengths and smaller apertures compared to the large, bulky models used in the past. Using a more optically fast refractor as a guide scope can save astro-imagers time, space, and money, but will still provide the unrivaled accuracy that only auto-guiding can bring to long-exposure astrophotographs.
Our new Orion Mini 50mm Guide Scope brings auto-guiding into the realm of affordability for any astro-imager, and brings the guide scope to a position that was previously occupied by a telescope finder scope.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers are happy with the performance, quality and value of the telescope. They mention that it works well, is well made and does the job at a good price. However, some customers have mixed opinions on focus.
AI-generated from the text of customer reviews
Customers are satisfied with the quality of the telescope. They mention it's well-made, and an excellent little guide scope for a small refractor. Some say that it'll help them see much deeper for star hopping, and that they have had no real trouble finding guide stars with this mini scope.
"...Using this scope, I can see much deeper for star hopping...." Read more
"This is a great little guide scope. I see a wide view on my guide camera...." Read more
"...I am using it with a ZWO ASI120S. It is very sturdy and fit with my Celestron scope perfectly without having to use the additional hardware that..." Read more
"...I have had no real trouble finding guide stars with this mini scope. It has a smaller aperture but a wider field of view...." Read more
Customers appreciate the value of the telescope. They say it has a great scope and does the job at a good price.
"Best bang for the buck" Read more
"Excellent guidescope for the price." Read more
"Got a great price on this one!" Read more
"Great Scope and Good Value..." Read more
Customers are satisfied with the performance of the telescope. They mention that it works well.
"...Works very well." Read more
"...Worked fine for my guider System ." Read more
"Very good quality and works perfectly!" Read more
"Clear and clean, works well." Read more
Customers are mixed about the focus of the telescope. Some mention it's well made and easier to focus, while others say it was very difficult to focus and the focus is too far behind the CCD chip.
"So I've not had much clear skies since I got this. it was very difficult to focus. In fact my camera required an extender...." Read more
"...Better quality, build, and has a helical focuser. You're welcome." Read more
"...Otherwise the focus is too far 'behind' the CCD chip, even at maximum elongation...." Read more
"...It's well made and much easier to focus." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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I attached a ZWO ASI185MC camera directly to this guide scope. I have it mounted in the finder bracket of my Celestron 130SLT and can use the Celestron's goto for imaging wide field with this scope. However, it's primary use is as an Electronic Finder Scope. In my light polluted skies and using my Celestron 130SLT (or my dob), I found it difficult to star hop with a camera on the main scope and the red-dot finder on the 130SLT or the 9x50 RACI on my Dob. They only worked well for bright objects or star hops. If I got to a dim area where there weren't many stars, it was difficult to find an object and place it in the field of view of the camera. I could replace the camera with an eyepiece to see where I was, but that would necessitate a refocus when placing the camera back in the focuser. Using this scope, I can see much deeper for star hopping. On the brighter objects, I can actually see them and position the scope to view it in the main camera.
Sometimes the images you see are images taken with a camera through the telescope using this as a guider (images not from the guider). I'm adding some photos. These are taken through the guidescope with the ASI185MC camera. M8, M11, M13
Reviewed in the United States on July 6, 2016
I attached a ZWO ASI185MC camera directly to this guide scope. I have it mounted in the finder bracket of my Celestron 130SLT and can use the Celestron's goto for imaging wide field with this scope. However, it's primary use is as an Electronic Finder Scope. In my light polluted skies and using my Celestron 130SLT (or my dob), I found it difficult to star hop with a camera on the main scope and the red-dot finder on the 130SLT or the 9x50 RACI on my Dob. They only worked well for bright objects or star hops. If I got to a dim area where there weren't many stars, it was difficult to find an object and place it in the field of view of the camera. I could replace the camera with an eyepiece to see where I was, but that would necessitate a refocus when placing the camera back in the focuser. Using this scope, I can see much deeper for star hopping. On the brighter objects, I can actually see them and position the scope to view it in the main camera.
Sometimes the images you see are images taken with a camera through the telescope using this as a guider (images not from the guider). I'm adding some photos. These are taken through the guidescope with the ASI185MC camera. M8, M11, M13
The screws for the mount look like they will take an allen wrench but they don't. Tightening them in a recessed vixen mount bottom was very difficult. The knurled outside is rather soft and strips easily. I need to find some better screws.