Planetary Eyepiece 1.25'' For Astronomy Telescope Swa 58° 4mm Multi-coated Green

Description

Item Description:
Field of View: 58 degrees
Origin: CN(Origin)
Barrel Size: 1.25 inches (31.7 mm)
Type: -Exit Pupil Distance: 15mm
Focal Length: 4mm
Large eye lens diameter: 21mm
Net Weight: 160g
Note:
Dear customer, if you have any problems or need more information about this item, please send us a message and we will give to You more information or will give the best solutions to solve it. Product Description
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This is a red laser collimator with 1.25" fitting and a removable 2" adapter, designed for accurate collimation (optical alignment) of all Newtonian and Schmidt-Cassegrain reflector telescopes.
About this item
SVBONY user adjustable laser collimator;allows anyone easily collimate 1.25'' and 2'' reflector telescopes;come with removable 2" adapter;built with metal material;make alignment no longer boring and time consuming
Easy to use;accurate collimation in a few minutes provide a more clearer image;no longer have to go back forth;just watch the collimator from the mirror end of the scope and adjust the screws
7 brightness levels red laser beam;adjustable brightness;suit for different light conditions;amazing alignment in dark and day;so can get the better views possible from your reflector telescope
High quality solid metal body;for a long term use;CR2032 battery included and comes with a full set of instructions with a step by step procedure on how to properly align a relfecting telescope
Triple cemented of Lens;Improve the stability of red dot;Red laser with 7 brightness levels;Quick alignment;much faster than a manual collimator ; It's a great Halloween birthday christmas gift
Feature:
Red laser collimation beam with 7 brightness levels
Can fit into 1.25" focusers or diagonals (with removable 2" adapter)
Less than 5mW output power, much safer for your eyes
Built with metal material, strong and durable
Item Included CR2032 Lithium cell battery
Specification:
Brand: Svbony
Name: Laser Collimator
Wavelength: 635-655nm
Output Power: less than 5mw
Fit Type: Newtonian and SCT reflector telescopes
Color: Black
Body Material: Metal
Net Weight: 135g/4.79oz
Note: The Best working distance is two meters
Package Includes
Newest SVBONY Laser Collimator for Mirror Reflector Telescopes
2-inch Adapter Sleeve
English User manual
Note:
Optical structure:1-piece aspheric PMMA resin lenses.
Spot distance:Calibration distance of 3 meters, 10% of the range of spots, beyond the scope of the spot size will be significantly changed.
Spot shape:3X5mm rice-like oval point.
Temperature environment:Sudden temperature difference will make the spot has obvious size changes.
High and low temperature experiments:Can not be high and low temperature experiments, the lens will crack.
If you have special requirements for the shape, size, and focusing distance of the class, please contact us.we have the right item meet your requirment.
Notice:
In order to ensure that you are seeing the best images your telescope is capable of providing, you should collimate your telescope before each use. Additionally, you should collimate your telescope any time images become blurry.
Ensure that the secondary mirror is square ly under the focuser. You should see all three retaining clips for the primary mirror reflected in the secondary.
Use the 2’’ adapter sleeve if you intend to use 2’’ eyepieces and place the laser into the focuser with the window pointing towards the primary mirror end of the telescope and switch it on.
Wave your hand in front of the telescope and see if the laser is exiting without hitting the secondary on the return. Also look through the side window of the laser collimator to see if the laser is returning to the face of the laser.
Adjust screws 1, 2, or 3, or a combination to move the laser into the middle of the primary mirror centre spot.
If the return beam is not parellel with its origin, you will have to move the collimation screws on the primary mirror. A final test can be done on a star
Warning:
Do not look directly into the laser beam! Permanent eye damage may result!
Avoid prolonged skin exposure to laser rashes or burns may occur!
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