Question about Zhumell Optics

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General suitability for birding

Hallo to you, Can you let me know, 1. Does this Zhumell spotting scope with an angled eyepiece, or any similar other model, have ED aperture lens. 2. is there any significant chromatic aberation with this model and incidentally A big plus for striking blows for literacy but should not your own text set an example, (it is to 'writing' not 'caps' that 'all' refers) hence "writing ALL in caps" , kind regards, James Gibbs-Sier

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  • Zhumell Master
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A) You have not stated to which model of Zhumell scope (of which I have never heard) this refers, but the new Swarovski has not only superb optical quality, but also a binocular eyepiece.

B) Thank you for stating the blindingly obvious in the second part of your query, which appears to be in response to some previous interaction between yourself and Fixya, the details of which you have not indicated.

Posted on Jun 18, 2017

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Posted on Jan 02, 2017

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How to Spotting Scopes Work?


Spotting Scope is a type of telescope typically used for observing wild animals and birds. A spotting scope features more magnification than a conventional binocular but less than an astronomical telescope.
The utility of a spotting scope becomes most obvious when the identification of an animal going in a large herd is required. Figuring out a specific animal from other look-alike animals becomes easy with such a device. For digiscoping purposes, few things can beat the power of spotting scopes. It is possible by using binoculars or telescopes to take a closer look at birds or other animals, but if you want a precise view of your target animal, a spotting scope is preferable.
Spotting Scope Features Explained
  • Objective lens
    Objective lens, also known as the Front lens, determines the image quality at higher magnifications. The diameter of this lens ranges from 50-100mm in size. It is also called "Aperture" of the lens. It is wise to buy the highest size of the objective lens considering its weight. Larger lenses allow to pass more light and create more bright images. This means you will get higher image quality with the larger lenses.
  • Lens Coating
    Manufactures often apply the chemical coating, which is known as Lens Coating, on the lens to reduce noise and increase light transmission. They also offer "fully coated," "multi-coated" and "fully multi-coated" lens to improve image quality. The premium quality spotting scopes' lenses are multi-coated with multiple layers on the surface.
  • Focusing
    There are two types of focusing mechanism in the spotting scopes such as Helical and Knob focusers. The focusing characteristics determine how quickly you can focus on the object with maximum precision. Between these two options, the helical focuser is the finest option for birding as it can change magnification rapidly along with the movement of the bird. For hunting or spotting slower animals, Knob focuser is best as it gives you more precise information than the former one.
  • Eye relief
    The eyepiece remains at a little distance from the users' eyes. This distance is called the eye relief where the light rays transmitted from the object pass to enter into your pupil. The comfortable eye relief distance is about 15mm to see the full field view. This feature is very important for those who wear eyeglasses. Nowadays, manufacturers are offering long eye relief for those who need to wear eyeglasses for convenient viewing.
  • Image Quality
    You might have seen some designation on the glass label of the spotting scope such ED glass, APO glass, HD glass, Fluorite glass. These special qualities of glass will cost you more but create a huge difference in image quality comparing low-quality lenses. Remember, you must pay for the good quality images when it comes to buying any types of optical instruments.
  • Magnification
    The magnification of spotting scope is higher than standard binoculars and varies between 15x to 75x. The power of the eyepiece determines the magnification of the scope. The important fact you should know that image quality drops off as the magnification goes up. Even premium quality scopes also lose a little quality at the highest magnification.
The condition of the atmosphere has effects on birding, hunting and digiscoping too. Humidity, ever-moving air, dry climates, dust and so on hinders the magnification and image quality at large.

Apr 08, 2018 | Optics

2 Answers

Which is better for use, angled or straight spotting scope?


Spotting scopes are used for several purposes which includes hunting, birding, nature viewing and landscape observation and targeting any distant objects. If this device is used for capturing photos, then the combination of a spotting scope attached with a camera would be helpful for the users. A spotting scope can also be used fort target shooting on which scoring targets on a rifle or archery range. If anyone wishes to buy a spotting scope then one must.
Angled or Straight Scope
Going for a spotting scope based on the users need, the thing that will come first is choosing one between the two - angled spotting scope or straight one.
Here is the Advantage and disadvantage of spotting scope:
Straight Spotting Scopes
Advantages
  • Easier to quickly find and track moving targets like birds
  • Easier to use if you do most of your birding or game viewing from hides or using a car window clamp
  • Easier to view objects below your own level eg at the bottom of a cliff
Disadvantages
  • Can get uncomfortable during prolonged observation periods
  • Digiscoping: depending on the weight of your camera and adapter, gravity can make the set-up less stable and there could be more chance of harming the eyepiece
  • If you're above average height, it can be more expensive to buy a tripod that needs to be stable at 170cm high and above. The larger tripod is also harder to carry about.
  • Harder to view birds in the sky
  • Harder to use if you also plan to use your scope for astronomy
Angled Spotting Scopes
Advantages
  • Generally more comfortable for prolonged observation periods
  • Easier to view birds in the sky
  • You don't need to raise the tripod so high and often depending on which tripod you have, you don't even need to raise the center column which makes a big difference regarding stability
  • Many prefer an angled for digiscoping, as you can set it at a lower height on your tripod, making it easier to keep it stable, especially in windy conditions
  • Gravity helps keep the camera in place for digiscoping making it more stable and so there is less chance of harming the eyepiece
  • Easier to use if you also plan to use your scope for astronomy
Disadvantages
  • Beginners will find the angled scope difficult to trace and detect the moving targets but they will overcome the difficulties over time by being able to handle it. It is more difficult to use when an user utilize this device mostly for birding or viewing game
  • Harder to use if you do most of your birding or game viewing from hides or using a car window clamp
  • Harder to view birds or anything else that is below your own level eg at the bottom of a cliff

Apr 02, 2018 | Optics

1 Answer

What are the features of Spotting scope?


Landove Prism Spotting Scope Review Best Spotting Scope In 2018
An overview of Landove Prism Spotting Scope

Everybody cherishes a lovely vacation. Recreational activities like hunting, hiking, wildlife or bird watching refresh our soul. In this case, enjoying a beautiful scenery spotting scope becomes a necessity to have a wonderful sight and captivate such sight in our mobile screens and cameras.
Most of the spotting scope provides this sort of view, but Landove Prism Spotting Scope is unique. We face trouble when we have to carry too many devices and skip perfect glimpse managing those devices. But Landove Prism Spotting Scope is different because it has a space to adjust our mobile phones or camera of such size.
The Landove Spotting Scope review holds the scope's other benefits which are described below.
Specifications
  • 20×60x zoom eyepiece
  • Prism: Bak4
  • Objective lens diameter: 80mm
  • Eyepiece diameter: 20mm
  • F.O.V angle: 1.58 degree-0.91 degree
  • F.O.V (feet /1000yds): 82.9ft-48ft
  • F.O.V (m/1000m): 27.6m-16m
Feature Analysis
Superior magnificationLandove Prism Spotting Scope review states one of its best features which is a 20x60c zoom. With a higher magnification like this, you can click or picture video clips of scenes located very far. But that would not ruin the quality rather it will be clicked with much clarity.
WaterproofWeather can be a great hassle sometimes and mess up our entire plan. But this spotting scope will not let that happen. Landove prism spotting scope is waterproof and allows apprehending the beauty of nature during rain too.
Dynamic lensThe spotting scope has superb focusing system because of its dynamic lens. The lens allows you to have a clear aim and focus on the target.
Fully multicoated opticsThis Landove Prism Spotting Scope review has already stated about the clarity given by the spotting scope. It has a fully multicoated 65mm green film objective lens, superior quality prism, and eyepiece. These specialties let you have a brighter and fresh picture.
Cell phone adapterLandove spotting scope digi-scoping adapter which can adjust your phone to the scope. This adapter helps you to take picture or video clips of the heavenly nature and charming animals without any trouble. For this reason, people all around the world prefer this spotting scope so much.
Standard coating and materialsThe spotting scope is a very light material, but this one is strong enough to be used often. It has a fine design with durability, metal framework and contains rubber armor. The tripod can be attached to the spotting scope which is portable and durable too.
Pros & Cons
Pros
  • Cell Phone Adapter
  • High-quality lens
  • Portable
  • Affordable
  • Easy to use
Cons
  • The Camera lens arrangement sometimes causes barrier for the scope eyepiece.
Final Verdict
Nature always amazes us. Travelling and sightseeing are also required in order to explore the beauty of nature. Spotting scope has become an additional requirement with this. Landove Prism Spotting scope review has remarked all the specialties and a disadvantage of this scope. But this disadvantage can be easily ignored in exchange for such crystal-clear vision.
Landove Prism Spotting Scope has become a top choice for people worldwide because it lessens the difficulties of carrying more than one device. Its features will always increase your excitement and add liveliness to your trip, bird watching or archery.
We can conclude our review by saying this scope is worth purchasing and a great deal undoubtedly. Hopefully, this landove Prism Spotting Scope Review will guide you through the buying process.

Mar 12, 2018 | The Optics

2 Answers

What are the features of Barska spotting scope?


The BARSKA Spotting Scope is flexible to use and accurate for any outdoor activity. It's a so much useful for birding and hunting both.
Here are some of the features of Barska spotting scope:-
1 Powerful Spotting Scope
2 Flexible to Use
3 Focus and Optics
4 Durable
5 Fully Multi-Coated
6 Straight Eyepiece system
If you want more details you can also check The best Spotting Scope Review 2018 and make your own decision.

Dec 08, 2017 | The Optics

2 Answers

I have picked up a KOWA TSN-1 for nothing that was going to be dumped and am trying to get it into usable condition. It has a dislodged prism that is rattling around behind the eyepiece.Can anyone explain...


Many of these small spotting scopes are GLUED together. -- not screwed.The scope is NOT suitable for Astronomy, but could be used for birding and or target practice.

Jun 10, 2011 | Kowa TS-501 (20 x 50mm) Telescope

1 Answer

Need to find replacement lenses got at a pawn shop as a freebie with purchase of another scope


Eyepieces can be bought at many on line retailers. Here is one, your scope probably uses the 1.25 inch size-- measure the hole in the focuser.

http://www.agenaastro.com/

Dec 22, 2010 | Zhumell Eclipse 114 Telescope

1 Answer

Alignment problems


I'm not sure of which telescope and finder you have but I can give you some general instructions.

If your finder scope is is the type that is like a tiny telescope then you should see a set of cross hairs when you look into it. The goal is so that when the object is in the center of the cross hairs you should be able to find it in your telescope eyepiece.. To do this you need to align the finder scope,

I usually use a terrestrial object to do this. I use these because they don't move like stars do. You can choose road sign, a spot on a tree or a street light though that can disturb your night vision. Aim your finder at this object and center it in the finder. Check to see if it is in the eyepiece of your telescope. Use a low power eyepiece to give you a wider field. The low power eyepieces have higher numbers such as 25mm. If the object is not in your eyepiece find it and center it. Check your finder again. You need to adjust the finder so that the object is in the center of the cross hairs.

There are usually 1 to 3 thumb screws to adjust this. If there a three you go back and forth until it is centered. Check your eyepiece again to make sure the scope is still centered. You can use a higher power eyepiece (lower number) to refine this since it displays a narrower field. Just repeat the process.

Once this is done, you find the object in the sky in your finder and center it and it should be there in your eyepiece.

Clear skies!

-jodair

Mar 20, 2009 | Optics

1 Answer

I have a WO IBIS 80 APO Spotting Scope. How do use it with other 1 1/4" eyepieces? The packaged zoom eyepiece seems to have a threaded attachment to the scope.


sounds like it was designed to use only the eyepiece that came with it. here is an idea...mount the scope on a tripod with no eyepiece in it...now take an 1 1/4" eyepice and place against the scope where you would put the eyepiece ..try to focus..if you cant, then slowly bring the eyepiece away from the scope till you see a sharp image..im sure a machine shop can make a sleeve to screw into your scope and hold 1 1/4" at that point.any questions i can answer call me larry@reichinstruments.com 5088331232

Nov 29, 2008 | Optics

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