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365Astronomy Red Dot Finder Finderscope - METAL BASE

365Astronomy Red Dot Finder Finderscope - METAL BASE
365Astronomy Red Dot Finder Finderscope - METAL BASE
Ex Tax: £19.00
  • Stock: 5
  • Shipping Weight: 0.30kg
  • GTIN: 0702403403425

 This is a nice, lightweight, adjustable plastic red dot finder with a separate metal base.
Can be used with both eyes open as it is built with a non-magnifying glass.

Window diameter: 24mm
Light control.
Plastic body with a separate standard two hole metal base. Will fit most telescopes supplied with two threaded mounting studs. Distance between screws (measured centre to centre) should be 20 +/- 1 mm

Width of bottom of metal base: 34mm (inner), 42mm (outer) 
Width of top of metal base: 34mm at bottom and 24mm at top
Height of the top of the metal base: 10mm
Full height of metal base: 20.5mm
Width of bottom of plastic base of the finderscope (that fits into the metal base) 30.5mm
Width of top of plastic base  of the finderscope: 22mm

Works with CR2032 cell. (One included.)

Image is for demonstration purposes only! Shows the full plastic version. Real image of this version is coming soon... (the top is exactly the same, the only difference is the separate metal base, really.)


Installing the "shoe" or base

Install the "shoe" onto your telescope. I suppose there are already holes on the tube, if not, you'll have to drill few. We'd suggest to use a tiny bit of paint to cover the edges of the drilled hole so that it won't start rusting from there if you have a steel tube. If it's an aluminium tube, there is no need to paint.

How to use the red dot finder
First of all you have to remove the transparent plastic piece as that stops closing the electrical circuitry. In the future, if you need to replace the battery, it is there under a small black plastic cap. You might be able to remove that by just your finger, fingernail or with a flat screwdriver tip. Do it carefully, of curse, make sure no damage to the battery holder. 
Now switch on the RDF (red dot finder) by rotating the switch on the right hand side (when you stand behind the telescope) of the RDF. With this switch you can also regulate the level of brightness as it suits you, depending on how bright your celestial object is.
Aligning the red dot finder.
Once you installed the red dot finder you'll have to align it into the main telescope. 
Point the telescope at a distant object: chimney edge, antenna, street light etc.  If the object is far enough, this will give you a good precision, but you might have to repeat this at an object at infinity, i.e. the moon, a planet or a bright star, Vega, Arcturus, Altair etc. (please note, aligning to the Moon will not give you high precision due to its size, so use it only for rough alignment or just to point the telescope...)
Aligning the RDF to the mount can be done by truning the two alignment knobs: a vertical knob (for horizontal alignment) is at the front end on the right hand side of the RDF and a horizontal knob (for vertical alignment) is placed at the bottom at the rear end.

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