Spotting Scopes San Francisco CA

This page provides useful content and local businesses that can help with your search for Spotting Scopes. You will find helpful, informative articles about Spotting Scopes, including "Spotting Scopes". You will also find local businesses that provide the products or services that you are looking for. Please scroll down to find the local resources in San Francisco, CA that will answer all of your questions about Spotting Scopes.

Fearless Soccer Camps
37 Coso Ave
San Francisco, CA
 
Jack Hyde Soccer Camp
Po Box 13129
Oakland , CA
 
US Sports Camps
750 Lindaro Street; Suite 220
San Rafael, CA
 
Incredible Adventures
(415) 642-7378
350 Townsend #423
San Francisco, CA
 
John Yandell Tennis School
(415) 885-6959
828 Franklin Street Apt 204
San Francisco, CA
 
Sutton Soccer Camps
1916 Stanford St
Alameda, CA
 
World Ambassador Soccer Academy
P.O. Box 1815
San Mateo, CA
 
Recreational Equipment Inc
(415) 934-1938
840 Brannan Street
San Francisco, CA
 
San Francisco REI Store
(415) 934-1938
840 Brannan St
San Francisco, CA
 
Bike Hut
(415) 543-4335
Pier 40
San Francisco, CA
 

Spotting Scopes

Spotting scopes are used by birders to take advantage of their powerful magnification capabilities. Spotting scopes generally operate in a range of 20x to 60X magnification. At 60x, an object looks 60 times closer than it does with the naked eye.

Viewing angle

There are two basic designs for the viewing angle. There is no difference in the quality of image and the final choice is one of personal preference.

zeiss spotting scope

In some designs, the eyepiece and the barrel of the scope are in a straight line.
This is a good choice if you do a lot of birding from the car, using a window mount.
Image from Carl Zeiss
Optical .

kowa spotting scope

This eyepiece is at a 45 deg. angle to the barrel of the spotting scope.
When mounted on a tripod, this design allows the tripod to be at a lower position, providing a more stable platform.
Image from Kowa Optimed, Inc.

Magnification

The amount of magnification is based on the eyepiece. The range is usually from 20x up to 60x. In general, the higher the magnification, the lower the image quality.

Replaceable eyepieces
Some scopes are designed with replaceable eyepieces. A user may have a 20x, a 30x and a 40x eyepiece. The eyepieces are changed based on the viewing conditions.

The individual eyepieces can be expensive.

Alert: Spotting scopes can be sold without an eyepiece. When purchasing, make sure the eyepiece is included with the purchase.

Zoom eyepiece
Some spotting scopes come with a zoom eyepiece, often in the range of 20x to 60x.

Some birders feel the fixed magnification eyepieces provide a slightly better image than a zoom eyepiece. Others prefer the convenience of the zoom.

If you are purchasing a top-of-the-line spotting scope from companies like Zeiss, Swarovski and Kowa, zoom eyepieces will deliver excellent image quality. Prices range from about $1500 to $2000 for these high-end units.

If you are considering a lower cost unit (as many of us do) with a zoom lens, try to test the unit before purchase to make sure the image quality is acceptable to you.

Eyeglass wearers - be sure to determine that the eyepiece selected is 'eyeglass friendly.' There are several designs available, including some very poor ones.

Light gathering

The brightness of the image is based on several factors, including the type of glass used in the lenses, lens coatings and diameter of the objective lens (the front end of the scope).

Unless you have a Phd in optics, all the special names used to describe the type of glass and coatings used by the different manufacturers is really of little value. Great marketing, but very few have the knowledge to really judge the difference between one type of lens coating and another.

The diameter of the objective lens is something we can all judge. The larger the objective lens, the brighter the image. Objective lenses are measured by their diameter in mm. The range runs from about 50 mm to almost 90 mm in a typical spotting scope used for birding.

The downsides to the larg...

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