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About this item

• The laser comes fully adjusted. It can however be further adjusted if required. It has three openings for adjustment, arranged at 120°, which are initially sealed. The battery for the laser can be exchanged at any time; the small screw cap at the rear of the laser must be first unscrewed to allow this.
• This adjustment tool can be used in all 1.25" focusers. We provide you with precise instructions in German and English, with a step-by-step explanation of how to adjust a Newtonian using this laser unit. So, even if you are a newcomer to amateur astronomy, it is very simple to get the optimum performance out of your
• The precision-made aluminium housing of the laser unit has a front opening from which the laser beam can be emitted. In order to obtain an optimal adjustment, it has a side window allowing a disk oriented at 45° with a central hole to be viewed.This can be then later be used to see whether the laser is reflected back on itself, indicating well collimated optics.
• Built with metal material. CR2032 Lithium Cell battery (Not include) ; Accurate collimation in a few minutes provide a more clearer image. The can be collimated by just one person.
• Designed for Reflector fit for standard 1.25 inch diameter. Red laser collimation beam with 7 brightness levels, wavelength 635-655 nm; Output power: less than 5mw, much safer for your eyes. This sturdy laser unit allows you to swiftly and precisely collimate your Newtonian Only when the optics have been accurately collimated can the offer you its full performance.

Product Description

• With this Laser collimator get the best image from your you need to align your regularly and this high quality laser collimator is an essential for this purpose. To get the most out of your Newtonian scope you really need to align or collimate the mirrors. It can take some time getting used to aligning both the secondary and primary mirrors and this laser collimator can make it much easier.
• Collimation is the alignment of elements inside an optical system like a Colimating a consists of adjusting the tilt and position of the mirrors and lenses to ensure that the focal point reaches optimum focus at the point from which the image will be viewed (the eyepiece or possibly a camera).
• Many factors can affect the alignment of your optical system and can cause the mirrors to move slightly such as vibrations from movement or expansion and contraction from temperature changes. A mirror which is not properly aligned will cause the light path to shift. The changes to the optical system's light path will cause an image to become blurry and or unviewable. In order to ensure that you're seeing the best images your is capable of providing, you should collimate you before each use. Additionally you should collimate your any time images become blurry.

Recalibrating the Laser Collimator

The Laser Collimator has been precisely aligned at the factory and can be used directly, unless a strong impact which require recalibration. You need a holder that is required is a suitable "V" block to rest the collimator body in so that it can be rotated through 360 degrees. To check the calibration, the laser should be rested in the jig aimed at a wall about 6 metres (20 ft) away and slowly rotated. If the laser dot on the wall describes a circle, then the collimator is out of calibration. (Note:Do not move the position when rotating)

4 Steps For Collimation

Power Supply Mode - Battery

The Laser Collimator is powered by one CR2032 battery(Not Included). When the laser beam starts to dim or completely fades, it’s time to replace the battery. To do so, unscrew the knurled battery compartment cap at the top of the collimator. With a tip or the end of a paper clip, lift the edge of the expired battery out. Insert a fresh CR2032 battery with the positive (+) side up. Then replace the cap. The CR2032 is a commonly used battery in watches, calculators, cameras, and other electronic devices, so you’ll be able to find one at most drug/hardware stores or online.

Package Include：

• 1 x Alstar laser collimator
• 1 x User manual

• Diameter: 1.25"
• Wavelength: 635-655nm
• Netweight: 3.98oz/112.8g
• Output Power: less than 5mw
• Material: Black Anodized Aluminum

Newcomer? NO Problem!

• This adjustment tool can be used in all 1.25" focusers. We provide you with precise instructions in German and English, with a step-by-step explanation of how to adjust a Newtonian using this laser unit.
• So, even if you are a newcomer to amateur astronomy, it is very simple to get the optimum performance out of your