The brands we carry at High Point Scientific. The manufacturers listed at any given time during your search refinement offer at least one product that matches other search criteria you have already chosen.

The Binoculars by Type search filter breaks down products in this category so it is easier for you to find what you are looking for. You have a choice to separate binoculars from monoculars, or you can choose to look at types of binocular accessories instead, such as Binocular Tripod Adapters.

One of the main considerations when choosing an astrophotography camera is whether it comes with a color or monochrome (black & white) sensor. There is a large selection to choose from either way, although a good number of relatively inexpensive beginner imaging cameras often come in color only.

While a color camera may be easier to master, a monochrome astro-imaging camera is nice because you can shoot in black and white, or you can add an external color filter wheel to the system and image in color. In fact, some monochrome cameras come with an internal filter wheel! Regardless of whether the filter wheel is internal or external, most of the time you will need to buy the filters themselves separately. That is usually best, however, because there is a huge selection of imaging filters to choose from, including the basic LRGB (Luminance, Red, Green & Blue) filter set as well as narrowband filters that allow you to explore particular wavelengths of light alone or as a group.

While this is a huge subject, here is the takeaway: A color camera is a good choice if you want to end up with color images but don't want the added expense and learning curve of a monochrome camera and filter wheel. However, a monochrome camera will grow with you as you add accessories to expand its capabilities.

Accessory Kits can include several different types of telescope accessories. Using this filter lets you make sure you only see kits that have the main accessories you need. For example, want to make sure you see kits that include eyepieces? Check that box and filtering will show you kits that include at least one eyepiece, even if other items are also included.

Sometimes adapters come in sets. This filter is used to differentiate between a single (one) item and a set or kit, which would include at least two adapters or spacers.

The type of threads, plate or barrel size on one side of the adapter, spacer, or other item. The side listed (A or B) doesn't mean anything except to designate one side from the other.

The magnification factor, also known as "power", is listed as the first number given in a binocular's name, like 7 x 50, 8 x 40, etc. In the first example, these binoculars magnify an image 7X more than if you were looking at that image with the "naked eye". When talking about zoom binoculars, the magnification is listed like this: 7-21 x 50. That means the binoculars have a zoom mechanism that takes the power from 7X to 21X as far as the eye can see. Please note that it doesn't matter whether there is spacing between the numbers or whether the "X" is upper- or lower-cased.

Don't always assume that more magnification is better! The more power, the harder it is to keep the image stable when hand-holding binoculars. Most people can comfortably hand-hold up to an 8X (most popular for birding), but after that, you may or may not need a tripod for a shake-free view...it depends on your own steadiness and how long you plan to view.

The type of threads, plate or barrel size on one side of the adapter, spacer, or other item. The side listed (A or B) doesn't mean anything except to designate one side from the other.

The aperture of a pair of binoculars (or any optical instrument) refers to the diameter of the main optics. Of course, binoculars have two main objectives that are the same size, but the number given for the aperture refers to just one. For instance, 8x50 binoculars have an aperture of 50 mm (and a magnification factor of 8), but unlike a telescope, they have two 50 mm objectives. The larger the aperture, the bigger the binoculars, but more importantly, a larger aperture draws in more light and lets you see more detail in shadow, shade, and other low light conditions.

We have hundreds of adapters & spacers, so filtering by a range of sizes was in order. Use this filter if you are looking for a particular length. For instance, if you want a 25 mm extension, then click the 20.1 mm - 30 mm box. Once you get those results, you can filter further by barrel size, thread type, etc.