INSTRUCTIONS FOR TELESCOPE MODELS
56TN / 57TN / 301004N / 301005N / 301051N
1. Remove tripod (O) from the box.
2. Stand tripod and spread legs. Loosen adjusting locks on each leg. Grab mount and lift. Extend the tripod legs to
the desired height (at equal lengths) and tighten each leg's adjusting locks to hold it in position (Fig. 1).
3. Using the accessory tray set screw, attach the accessory tray (R) to its mount or housing.
The guides for the correct setting are in the bottom of the tray. Make sure the flanges stay within the guides for
4. Remove telescope main body (J) from the box. Unscrew mounting bolt (B) from telescope base. Place telescope
body onto tripod mount (M). Insert bolt through tripod mount (Fig. 2c) and tighten securely.
5. Remove the finderscope (I) from the box. Place the finderscope in the finderscope bracket and secure with three
finderscope bracket set screws (Fig. 2a).
6. Insert diagonal (E) into the focus tube (Fig. 6n). Secure by tightening small retaining screw.
7. Use the micro-altitude adjusting knob (Fig. 4i) and the azimuth adjusting knob (Fig. 4j) in the tripod mount to
move the telescope as desired.
Diagonal is only to be used in combination with the eyepieces (oculars).
: Diagonal is only to be used in combination with the eyepieces (oculars).:
Never use the diagonal and Barlow at the same time.
8. Insert eyepiece (Fig. 6k) into diagonal (Fig. 6n). Secure by tightening small retaining screw.
In all astronomical telescopes, the image appears upside down. With the use of the diagonal the image appears
: In all astronomical telescopes, the image appears upside down. With the use of the diagonal the image appears :
erect but with a left to right inversion (mirror like). To use the
telescope for terrestrial view and to correct the mirrored image, remove the diagonal and replace with the erecting eyepiece.
9. To use the Barlow, insert Barlow into the focus tube. Secure by tightening small retaining screw. Insert eyepiece
into open end of Barlow and secure (Fig. 5l). The telescope is now fully assembled and ready for use.
Models 56TN, 57TN and 301051N: for terrestrial viewing - 35X
a. Remove the diagonal mirror/eyepiece assembly.
b. Insert the erecting eyepiece and tighten the ocular screw (Fig. 7o). You will now
c. The 35X erecting eyepiece is also a 14 power microscope when the objective end (the end
inserted into the focusing tube for terrestrial viewing) is placed flat on an object and viewed
through the eyepiece (Fig. 8). Gently push/pull the eye piece to focus. Before re-using for
terrestrial viewing, fully push the eyepiece in.
CAUTION: Viewing the sun can cause permanent eye damage. Do not view the sun
with this product or even with the naked eye.
56TN 57TN 301004N 301005N 301051N
50mm (1.96") 50mm (1.96") 50mm (1.96") 50mm (1.96") 50mm (1.96")
Focal Length: 600mm 630mm 600mm 600mm 600mm
Eye Lenses: H6mm/H12.5mm 12.5mm 10-30 Zoom 8-24 Zoom 12.5mm
Magnification: 200X 150X 60X 75X 100X
Accessories: Diag. mirror, Diag. mirror, Diag. mirror, Diag. mirror, Diag. mirror,
2X Finderscope 2X Finderscope
EYE LENS CHART & THEORETICAL POWER LIMITS
56TN 57TN 301004N 301005N 301051N
12.5mm with 3X Barlow: 150X 150X N/A N/A 50X
Tasco 56TN-57TN-301051N-301004N-301005N.indd 5 12/3/2007 11:11:11 AM
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