Finding your suitable erecting porro prism is not easy. You may need consider between hundred or thousand products from many store. In this article, we make a short list of the best erecting porro prism including detail information and customer reviews. Let’s find out which is your favorite one.
Reviews
1. Binoculars,7x30 Binocular, FMC Prism Porro Sightseeing Binoculars
Feature
30-millimeter lens diameterAuto focusing porro prism
30-foot close focusing distance
Five-millimeter exit pupil
Description
Specifications:Optical Design: Refractor
Aperture: 60mm(2.4in)
Focal Length: 350mm(13.78in)
Focal Ratio: F5.8
Eyepiece1: 25mm(0.98in)
Magnification1: 14X
Eyepiece: 10mm(0.39in)
Magnification2: 35X
Max Magnification: 105
Finderscope: 5*24
Zenith Mirrors: 48°Erecting BAK7 prism
Mount: Altazimuth Mount
Optical coating: Antireflection Blue Film
Barlow lens: 3X
Resolution: ≤4.9
Angular Field of View: 2°40"
Tuble connection: Altazimuth Mount Screw
Tripod: Aluminium Alloy Tripod
Package List:
1 * Monocular telescope
1 *Zenith mirror
1 *10mm eyepiece
1 *25mm eyepiece
1 * Tripod
1 * Carry bag
1 * User manual
Description:
Entry-level refractive astronomical telescope with 60mm aperture and 350mm focal length, great for students or those who are interested in learning more about the space and night sky. With 3X barlow lens, this maximum magnification of this telescope can reach 105 times, which can increase the viewing capability. Lightweight and portable, this telescope can be a wonderful gift for those who love observing animals, enjoying scenery, traveling, etc.
Features:
Multiple interchangeable eyepieces with 1.5X erecting eyepiece and 3X barlow lens for increased viewing capability.
105X maximum magnification brings the distant scenery to your eyes.
Easy assembly with no tools required.
Aluminum alloy construction, lightweight and portable, good choice for beginning astronomer.
Note:
Don't clean the inner parts of the monocular or dissemble the monocular without guidance of expert.
Never look at the sun directly with this product.
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About Guarantee:
1.12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.
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2. SVBONY 1.25" 45 Degree Erecting Image Diagonal Prism Zenith Mirror for Refractor Catadioptric Telescope and Astronomical Telescope Eyepiece
Feature
High-quality prism diagonal provides a comfortable and sharp 45 degree viewing orientation for great daytime terrestrial views and night time astronomy applications for telescopes or spotting scopesHigh optical lens transparency;the large quality prism allows more light transmission;so that delievers a clear image
Standard 1.25 " diameter for filter thread for any 1.25" filter;fits for the standard 1.25" telescope eyepiece
Semi-metallic zenith mirror has dust cover keeping the lens clean,so that provides clear and sharp images and extends the service life
Lifetime warranty;we confidently promise lifetime warranty for each one from us
Description
SVBONY 45 degree erecting image diagonal prism for telescope and any standard 1.25" eyepieceIt's easily correct upside down and left right reversed image;makes it easier to navigate the day and night skies with telescope in correct position
You can insert it into the 1.25 " telescope silver terminal;the other end with a screw fixed 1.25" eyepiece;it can also be used to observe astronomy;nebula;cluster;nebula scattered with high brightness and excellent optical properties
Main Features:
Semi-metallic material;45 degrees prism
High optical lens transparency provides clear and sharp images
Standard 1.25 "diameter fits for 1.25" eyepiece and telescope
The dust cover keeps the lens clean to extend the service life
Type: zenith mirror
Observation angle: 45 degrees
Colorblack and silver
Net weight: 75.50g
Gross weight96.90g
Material:metal and plastic
Package includes:
1 x 1.25" 45 degree zenith mirror
Lifetime warranty;we confidently promise lifetime warranty for each one from us
3. Astromania 1.25" 90-degree Erecting Prism optical Prism inside rather than a mirror which makes your image clear and sharp
Feature
Typically, you see the picture standing upside down. But what if you also want to observe nature? With this 90-degree erecting prism transform your telescope into a telescope for nature observation with upright and left-right corrected image. This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.Comfortable observation with 90-degree: Look pleasantly from above into your eyepiece, filter thread for any 1.25" filter and accepts standard 1.25" eyepieces.
The Amici prism gives you a bright and clear picture: The prism is made of genuine optically processed BK7 glass, high quality optical prism inside rather than a mirror which makes your image clear and sharp. The Amici prism looks as beautiful as binoculars, but you can zoom in much higher with your eyepieces.
Simply insert the erecting prism into the 1.25 "focuser and enjoy upright and right-angled images with your eyepieces - watch birds, deer at the edge of the forest, the summit cross on a mountain or a cruise ship far out on the sea.
The prism housing is made of precision molded ABS plastic and the two sleeves are made of metal - which ensures a tight fit and long grip. Use a clamping screw made of aluminum to fix your eyepiece. So you can even look sideways through your telescope - the eyepiece does not sit and fall out. From now on nature lies at your feet: even if it is far away.
Description
Astromania 1.25" 90-degree Erecting Prism. This is an economical 1.25" 90-deg prism diagonal for astronomical telescopes and spotting scopes. With this 90-degree erecting prism transform your telescope into a telescope for nature observation. This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.The prism is made of genuine optically processed BK7 glass, high quality optical prism inside rather than a mirror which makes your image clear and sharp. The Amici prism looks as beautiful as binoculars, but you can zoom in much higher with your eyepieces.Simply insert the erecting prism into the 1.25 "focuser and enjoy upright and right-angled images with your eyepieces - watch birds, deer at the edge of the forest, the summit cross on a mountain or a cruise ship far out on the sea. Please Note: This diagonal can only be used with refractor telescopes and some catadioptric telescopes like Schmidt-Cassegrain, Maksutov-Cassegrain, etc. Not intended for use with reflector telescopes like Newtonian / Dobsonian reflector telescopes or other variants of Newtonian telescopes.4. Bushnell H2O Waterproof/Fogproof Porro Prism Binocular, 8 x 42-mm, Black
Feature
Magnification x Objective Lens: 8x42mmPrism System: Porro
Field of View: 410ft at 1000yds/137m at 1000m
Close Focus: 18ft/ 5.5m
Eye Relief: 17mm
100% waterproof, O-ring sealed and nitrogen purged for reliable, fog-free performance
BaK-4 prisms and multi-coated optics offer crisp clear images with improved light transmission
Non-slip rubber armor and Soft Texture Grip absorbs shock and provides a firm grip
8x magnification and 42mm objective diameter; 18-foot close focus distance; 17mm eye relief
Large center-focus knob for easy adjustments; Twist-up eyecups; Limited lifetime warranty
Description
| THE ONLY THING WE DIDN'T DO IS TEACH THEM TO SWIM. The ultimate on-the-water viewing companions, our everpopular H20 binoculars have been enhanced for 2012 with a Soft Texture Grip to keep them on board and in your hands in the most challenging conditions. Just as before, they're O-ring sealed and nitrogen purged to ensure stunning views no matter how wet they get. To maximize light transmission and clarity, standard equipment includes multi-coated optics and premium quality BaK-4 prism glass. From the streamside to the Gulf Stream, the world simply looks better through the Bushnell H20. Features:
Bushnell has been the industry leader in high-performance sports optics for more than 50 years. The company's guiding principle is to provide the highest quality, most reliable, and most affordable sports optics products on the market. Bushnell product lines enhance the enjoyment of every outdoor pursuit, including nature study, hunting, fishing, birding, and stargazing. Indoors, the company's binoculars bring the audience closer to the action in fast-moving sports or the fine arts at theaters and concerts. |  Our all-purpose, full size BaK-4 porro prism for high magnification at a distance. |
5. Gosky 20-60 X 80 Porro Prism Spotting Scope- Waterproof Scope for Bird Watching Target Shooting Archery Range Outdoor Activities -with Tripod & Digiscoping Adapter
Feature
Fully multi-coated 80mm green film objective lens, eyepiece and quality prism inside - garentee the key elements of a spotting scope, and make your view brighter, clearer and delivers crisp images.Variable 20x to 60x magnification and dynamic lens focusing system -- makes it easy to zoom in on target. Designed for birdwatching, watching wildlife and scenery.
Durable Magnalium Framework and Rubber Armor - Its tight fitting protection makes it usable to withstand the toughest weather conditions. The shock-absorbing rubber armor for maximum protection. And the eyepiece shield can be stretched out to protect the eyepiece.
Waterproof Design : Its sealing property ensures the living waterproof function.
Comes with a digiscoping adapter for digiscoping. With Carrying Case, Eyepiece and Lens Protection Covers, Cleaning Cloth and handy Straps.
Description
Gosky 20-60X 80 Porro Prism Spotting Scope- Waterproof ScopeSpecially designed for Bird watching Target Shooting Archery Range Outdoor Activities -with Tripod & Digiscoping Adapter
Features:
1.Fully multi-coated 80mm green film objective lens, eyepiece and quality prism inside - garentee the key elements of a spotting scope, and make your view brighter, clearer and delivers crisp images.
2. Variable 20x to 60x magnification and dynamic lens focusing system -- makes it easy to zoom in on target. Designed for birdwatching, watching wildlife and scenery.
3. Durable Magnalium Framework and Rubber Armor - makes it usable to withstand the toughest weather conditions. The shock-absorbing rubber armor for maximum protection.
4. Waterproof Design: Its sealing property ensures the living waterproof function. Never worried about rain, fog, and other wet conditions.
5. Comes with a digiscoping adapter for digiscoping in the distant world.
6. Comes with a metal tablet tripod, so you can use it on a table or on the window base. (We recommend that you mount it on a standard tripod).
Specification:
Magnification:20x -60x
Objective lens diameter: 80mm
Eyepiece diameter: 20mm
Prism: BAK4
Eye relief: 17-13.5mm
Exit Pupil:4mm@20X, 1.33mm@60X
Close Focus (ft/m): 18/6
Field of View: 115.2.-57.6ft@1000yds
Close Focus Distance: 6m / 18ft
Optical Coating: Full Multi Coated
Living Waterproof and Rainproof - Nitrogen filled
Size: 450 x 170 x 110mm
Weight: 1230g
You will receive:
1 x Spotting Scope
1 x Digiscoping adapter
1 x Tripod
1 x Carring Bag
1 x Manual
Warranty:
1. This is a prime product, easy to return and have a refund if you do not like it.
2. 365-days free exchange warranty. If any part goes wrong within 365day, just contact us by "contact seller"on amazon.
6. SVBONY 1.25" 90 Degree Fully Coated Erecting Prism Astronomical Telescope 31.7mm Zenith Diagonal Mirror for Refractor and Cassegrain Telescopes
Feature
Standard 1.25'' diameter;fit for 1.25'' focuser and eyepiece;work with refractor and catadioptric telescopes;not recommended for reflector telescopeFully coated lens come with dust cover;keep your lens clean for superior image fidelity
Wide 90 degree angle;you can view correct image from refractor telescope stand and just look down with a comfortable angle
1.25" 90 degree diagonal mirror using with refrator telescope and makes the image upright;though left and right reversed;not affect astronomical observation
Lifetime warranty;we confidently promise lifetime warranty for each one from us
Description
If you are tired of trying to invert things in your mind and staring at upside down stuff;this SVBONY 90-Deg Zenith Mirror could turn your refracting telescope into a scopeIt can be used to observe objects on earth with comfortable angle image;it's convenient to look at the zenith of the sky and close to horizontal observation
Main points:
1.25" 90 degree angle mirror:
Using with refractor telescope;the image is upright;though left and right reversed;not affect viewing celestial bodies
Standard 1.25" diameter:
Fit for 1.25" telescope eyepiece and telescope focuser
Designed for:
Work with refractor and catadioptric telescopes;not recommended for reflector telescope
Wide 90 degree refraction angle:
View correct image from refractor telescope stand and just look down with a comfortable angle
Super easy to use:
Just insert into 1.25" telescope at the silver end;the other end fix 1.25" eyepiece by the screw
Body material:
Plastic and metal;fully optical glass lens;provide clear and sharp image
With dust cover:
Always keep your lens clear;prolong the 90 degree zenith mirror using life
Weight:
109g;3.85oz;convenient to carry anywhere where you wanted to go
Package include:
1x90 degree zenith mirror for 1.25" eyepiece
The zenith mirror is suitable for refraction and the Cassegrain telescope;not recommended for the reflector
Lifetime warranty;we confidently promise lifetime warranty for each one from us
7. Simmons ProSport Porro Prism Binocular (10x 50-mm)
Feature
Magnification x Objective: 10x 50mmFully-coated, high-quality optical glass for bright, sharp, images in full-detail
Bk7 prisms for brilliant light transmission
Rubber armor coating for better grip and protection
Porro prism system
Multi-coated, high-quality optical glass for bright, sharp, images in full detail
BK7 porro prisms
Rubber-armored for superior grip and protection
10x magnification and 50mm objective diameter; 21-foot close focus distance; 12mm eye relief
Description
Reliable binoculars for the avid hunter or serious sports fan, ProSport 10x50mm binoculars bring the action up-close and in vivid clarity. Feature high-quality, fully-coated optics and a durable rubber armor that provides a positive grip and added protection in any weather conditions. Offer Bk7 prism glass and are adaptable to a tripod.8. Beileshi 10X25 Compact Binoculars 10x Magnifier Compact Porro Prism ,Large Eyepiece Super High-Powered Field Surveillance Binoculars
Feature
Beileshi 10x25 Series compact binoculars are perfect for those who need advanced optical performance packed in a lightweight, compact design so you can carry in a pocket and use them for hours without tire;With BaK4 prisms and multi-coated lenses;
Beileshi 10x25 impressive light transmission and always delivers crisp, clear images. O-ringed sealed and nitrogen-charged;
Waterproof and fog proof to take on the outdoors. Beyond the impressive optical performance;
It is incredibly compact and lightweight yet also provides an offset, large focus wheel for more comfortable adjustment and no-slip armor.
Description
Beileshi 10x25 binoculars images were what you might call "better than real" in that the optics seemed to actually improve on my normal vision. The focus was responsive and positive with no discernible creep.
I am using mine primarily for surveillance work and in that role they have been very well suited. Compact yet easy to grip thanks to the rubberized exterior, fast focusing and sharp imaging are features which make the job a lot easier.
There are two little tubes (called "screw-up eye cups") that eyeglass wearers can leave collapsed which give users a perfect picture while wearing glasses. It really works.
It is very sturdy they really are.
9. Celestron Erect Image Prism for Refractor and Schmidt Cassegrain
Feature
A great accessory for daytime terrestrial viewing with your telescopeThis 1.25" diagonal produces right side up and left-to-right correct images when used with refractors and catadioptric (Schmidt-Cassegrain) telescopes
Inserts into 1.25" focusers or visual backs. Accepts standard 1.25" eyepieces
Description
Did you know that most telescopes work well for daytime viewing as well as for astronomy? If you have a refractor or a catadioptric telescope (the Schmidt-Cassegrain is the most popular example), and you would like to use it for terrestrial observations, the most useful additional accessory you can buy is an erect-image diagonal.If you look through your telescope with the standard mirror or star diagonal installed, you will notice that objects may be either upside down, flipped so that you see a mirror image, or a combination of the two. This is fine for observations of celestial objects, but it can be a little confusing when you are trying to track a boat as it moves through the water, or an eagle as he flies towards his perch.
Luckily, this is an easy problem to correct. Simply remove the standard diagonal from the telescopes focuser or visual back, and install the Celestron 45 Erect Image Diagonal. Now, when you insert an eyepiece, objects will be right side up and left-to-right correct. The 45 angle of this Amici prism diagonal is very comfortable for daytime observations, where the telescope is often in a horizontal position.
Please Note: Adding an erect-image diagonal to a Newtonian reflector will not result in images that are right side up and left-to-right correct. The optical design of a Newtonian will always produce images that are rotationally off in orientation. This does not mean that you cant use a Newtonian reflector during the day, it just means that you have to get used to objects oriented in unrealistic positions.