The Questar Field Model is the ultimate spotting scope. For situations
requiring long focal lengths, no other scope matches the Field
Model's resolution and image contrast. As a telephoto lens, the
Field Model is comparable in size to a 250mm f/2.8 lens, and weighs
less than 3 pounds. It has all the controls of the Standard 3.5,
giving the observer 3 powers per eyepiece and giving the photographer
a separate selectable port for the camera attachment. The Field
Model is designed expressly for terrestrial observation and photography,
yet when mounted on a pan head it can also be used successfully
for sky observation. It has the same optic and built in functional
control elements as the astronomical units with the exception
of the astronomical mount and the moon and star chart barrel covers.
The Field Model has the rapid focus option that was developed
primarily for the convenience of photographers. It can also serve
the wildlife observer by providing a 2.3 times faster acquisition
of a target. This modification to the Field Model must be done
at the factory. The Questar Field Model 3.5 includes the lens
cap, 24mm eyepiece (53-80X), built in finder (4x), stardiagonal
prism, Barlow lens for eyepiece port, blue anodized dewcap, basic
camera coupling set, and waterproof carrying case. There is room
in the case for camera and other small accessories.