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Blue Microphones Yeti Pro USB Condenser Microphone, Multipattern. $249.00 The Yeti Pro is the world’s first USB microphone combining 24 bit/192 kHz digital recording resolution with analog XLR output. Featuring three custom condenser capsules and four different pattern settings, the Yeti Pro can capture digital audio with up to four times the clarity found on CDs. Plus, the Yeti Pro features a cutting-edge A-D converter chip and separate analog circuit path for usewith … |
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Manfrotto 200PL-14 RC2 Rapid Connect Mounting Plate with 1/4-Inch 20 Screw (Gray) $14.95 The Manfrotto 200PL14 Rectangular Quick Release Plate is a rectangular plate with a 1/4″-20 camera screw. Replaces item # 3157N… |
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Orion Apex 102mm Maksutov-Cassegrain Telescope $299.99 Powerful enough to split close double stars, resolve bright globular clusters, or look an eagle in the eye, Orion’s Apex 102mm is both a fine astronomical instrument and an unparalleled terrestrial spotting scope. The Apex’s 102mm-diameter (4″) optics collect 28% more light than a 90mm scope. The fully multi-coated curved front meniscus lens guarantees the highest possible light transmission. The … |
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RAM Mount Handlebar U-Bolt Base w/Round 1/4-20 Threaded Stud $25.80 RAM Handlebar Rail Mount with Zinc Coated U-Bolt Base & Round Base Adapter that Contains a 1/4″-20 Thread for CamerasPart #: RAM-B-149Z-C1UThe RAM zinc coated u-bolt rail base consists of the 1″ diameter ball and socket system with RAM Universal 1/4″-20 thread centered on a 2.5″ diameter plate. This mount is designed to be a universal mounting solution for both still and moving cameras. The base h… |
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Helicoil 5521-4 0.25-20 Inch Coarse Thread Repair Kit $15.31 All kits contain a Heli-Coil tap, installation tool, a quantity of insert and detailed instructions. … |
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Follow Focus DSLR Rig 1/4 Thread Metal Camera Shoulder Mount $162.18 Material : Metal, Rubber, Plastic; Color : Black, Blue; Net Weight : 1127g; Package Content: 1 x Camera Shoulder Mount; The 1/4″ screw thread shoulder mount features adjustable Shoulder Rig with poles and rubber coated nonslip two handles; |
Spotting Scopes Terminology – Best Spotting Scopes For Birding
Spotting Scopes Terminology
Spotting scopes are used when more magnification is needed or wanted than binoculars provide. Spotting scopes are used widely for birding, viewing wildlife and landscapes and other objects at a great distance. Much of the terminology and technical specifications specific to spotting scopes are similar to binoculars. For example, a 20-60×82 spotting scope has a zoom magnification range of 20-60x (20 to 60 times larger than the size of an image as would be seen by the naked eye) with a front lens diameter of 82mm.
The significant increased magnification of spotting scopes can take you well beyond the capabilities of conventional binoculars. That said, two factors, the atmosphere and the optical system of the spotting scope, should be kept in mind. Heavy air, dust, humidity, glare and wind and air currents during the day can all reduce image quality and the greater the magnification, the more drastic the reduction in image quality will be. Few locations allow you to use more than 60-80x during the day, so most spotting scopes stop at 60x. The optical system of a spotting scope will impact magnification also. As magnification is increased, some decrease in image quality will result, no matter the model. In this key area, as the old saying goes…you get what you pay for. So yes, if you want a spotting scope that is as clear and sharp at 60x magnification as it is at 20x, then expect to pay more. Keep in mind though that most spotting scopes are used at lower magnifications, usually around 30x-40x. This is more than enough for most applications and all but the least expensive and cheapest model will produce reasonable images in this magnification range.
Objective Diameter
Assuming that you are comparing two models of similar quality, the larger the objective lens, the more detail you can see and the better image quality your scope will deliver, especially at higher magnifications. However, a large lens of mediocre quality, no matter how large, will never equal the performance of a smaller, quality lens. If you aren’t sure, opt for quality, not size.
Close Focus
Although not an absolute necessity, a spotting scope with a close focus of 20 ft or less can be useful, especially if you plan to use a spotting scope with a camera.
Eye Relief
As with binoculars, this is the distance your eye can be from the eyepiece and still see the entire field of view. As a general rule, you will need at least 14mm of eye relief to see the entire field of view with eyeglasses and people with thick glass lenses in their eyeglasses will probably need more.
Waterproofing
While not a necessity, a waterproof scope is terrific to have. The seals in a waterproof model also prevent the infiltration of dust and dirt and therefore add to the lifespan of the spotting scope.
Tripods
Due to its high magnification, handholding a spotting scope and expecting to maintain a clear, non-blurry image is virtually impossible. A spotting scope requires that it be supported to keep it steady. You may be able to sneak by at lower magnifications with a monopod or shoulder stock, but above 40x, you must use a tripod. And the larger and heavier the scope, the larger and heavier the tripod should be. As all spotting scopes are threaded in the same fashion as a camera and therefore should fit on any standard camera or video tripod, unless you prefer, you will not need to purchase a special tripod for your spotting scope.
Best Spotting Scopes for Birding
Most agree that the best magnification range for birding with a spotting scope is 20-40x. Much higher than 40x and the field of view is too narrow to be practical, with the added drawback of a dimmer image. Keep in mind that problems such as heat waves will increase at higher magnifications. If you do a lot of dawn or twilight bird observation, or if your area is often overcast and dim, a wider objective lens will give you a better image. So you will want to choose a lens of 77-82mm. However, a larger objective lens also translates to increased size and weight. Birders who are out mostly during the day and don’t relish the thought of carrying a heavier instrument will want to consider an objective lens size of 60-65mm.
Support Staff – the Outdoor Nature Resource.com
Optics from theOutdoor Nature Resource.com
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