Celestron Firstscope 80 AZ Instruction Manual page 16

•Ultima - Ultima is not really a design, but a trade name for our 5-element, wide field
eyepieces. In the 1 -1 /4" barrel diameter, they are available in the following focal lengths:
5mm, 7.5mm, 12.5mm, 18mm, 24mm, 30mm, 35mm, and 42mm. These eyepieces are
all parfocal. The 35mm Ultima gives the widest possible field of view with a 1-1/4"
diagonal.
Eyepiece Filters - To enhance your visual observations of solar system objects,
Celestron offers a wide range of colored filters that thread into the 1-1/4" oculars.
Available individually are: #12 deep yellow, #21 orange, #25 red, #58 green,
#80A light blue, #96 neutral density - 25%T, #96 neutral density - 13%T, and
polarizing. These and other filters are also sold in sets.
Night Vision Flashlight-(#93588) - Celestron's premium model for astronomy,
using two red LEDs to preserve night vision better than red filters or other
devices. Brightness is adjustable. Operates on a single 9 volt battery.
Moon Filters (#94119-A) - Celestron's Moon Filters is an economical eyepiece
filter for reducing the brightness of the moon and improving contrast, so greater
detail can be observed on the lunar surface. The clear aperture is 21 mm and the
transmission is about 18%.
Planisphere (#93720)
- A simple and inexpensive tool for all levels of observers,
from naked eye viewers to users of highly sophisticated telescopes. The
Celestron Planisphere makes it easy to locate stars for observing and is a great
planet finder as well. A map of the night sky, oriented by month and day, rotates
within a depiction of the 24 hours of the day, to display exactly which stars and
planets will be visible at any given time. Ingeniously simple to use, yet quite
effective. Made of durable materials andpoated for added protection. Celestron
Planispheres come in three different models, to match the latitude from which
you're observing:
Sky Maps (#93722) - Sky Maps are the ideal teaching guide for learning the night
sky. You wouldn't set off on aroad trip without a road map, and you don't need
to try to navigate the night sky without a map either. Even if you already know
your way around the major constellations, these maps can help you locate all
kinds of fascinating objects.
T-Adapter (#93625) - A T-Adapter allows you to attach your 35mm SLR
camera to the prime focus of your telescope. This arrangement is used for
terrestrial photography and short exposure lunar and planetary photography.
It can also be used for long exposure deep-sky photgraphy when using a
separate guidescope and tracking motor.
Vibration Suppression Pads (#93503) - These pads rest between the ground
and tripod feet of your telescope. They reduce the amplitude and vibration time
of your telescope when shaken by the wind or an accidental bump. This
accessory is a must for long exposure prime focus photography.
A full description of all Celestron accessories can be found in the Celestron
Accessory Catalog (#93685).
16