Lunt Solar Systems LS50FHa Manual

Lunt Solar Systems Ikke kategoriseret LS50FHa

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Side 1/4

Manual

LS50FHα

αα Filter System

Congratulations and thank you on your purchase of a Lunt Solar Systems solar filter! The Lunt Solar systems are

a new generation of solar viewing instruments utilizing the most current technologies to provide the highest

quality contrast and resolution in their class.

Warning

There are inherent dangers when looking at the Sun thru any instrument. Lunt Solar Systems has taken your

safety very seriously in the design of our systems. With safety being the highest priority we ask that you read

and understand the operation of your telescope or filter system prior to use. Never attempt to disassemble the

system. Do not use your system if it is in someway compromised due to mishandling or damage. Please contact

our customer service with any questions or concerns regarding the safe use of your instrument.

Never look at the Sun with your naked eye or with a telescope that is not specifically designed to do so.

Permanent and irreversible eye damage may result!

Check that all filters are installed correctly and are free of any surface contamination that may compromise

performance and/or potentially damage the surface of the optic when exposed to the Sun. i.e.: fingerprints.

Perform a routine safety check before each viewing session.

Never leave the solar telescope unsupervised while pointed at the Sun. People who are not familiar with

the correct operating procedures of the system may inadvertently replace the diagonal or remove the

filter itself not being aware of the integrated safety features of each.

The Lunt Solar filter/telescopes are not interchangeable with competitor products.

Handling

A Lunt Solar Systems solar filter houses many optical elements that are all pre-aligned and fixed at the factory.

There are no user serviceable parts inside the filter. The filter should never be taken apart. This will not only void

your warranty leading to costly repairs, it can only serve to further damage the instrument and compromise its

safety.

Most Lunt Solar Systems filters and telescopes house a delicate optical element referred to as an Etalon. These

Etalons are suspended in the filter housing in an effort to both protect it and isolate it from outside influences,

which could de-tune the Etalon filter. Extensive research has been done to assure the best performance of what

is essentially the "heart" of the system while protecting it from the day-to-day bumps, jarring, and vibrations of

normal use.

However, the instrument should never be subjected to shock due to being dropped. Mishandling of the filters

system will cause the Etalon to de-contact (not covered under warranty) and will render the instrument useless

until repaired.

The instrument should be stored in its original case. As with any precision optical instrument it should be kept in

as low a humidity area as possible.

With proper handling and care the filter should last a lifetime.

Cleaning

As with most telescopes and equipment there will be a build up of dust and debris on the lens and mechanical

components after sitting out all day. For those who are familiar with cleaning telescopes we recommend you use

the same techniques. For those who are new to the care of these instruments we can offer the following

guidelines:

Blow off loose dust and dirt using a clean dry air source at low volume. Do not use shop compressed air, which

contains oil and will further contaminate the instrument. Stubborn particulates can be brushed from the surface

with a static free lens brush. Use gentle sweeping motions. Fingerprints and smudges can be removed using

lens tissue or a Kleenex type tissue product. Fold the tissue or cloth to make a "pad", apply a cleaning product to

the end of the pad dampening it evenly (do not apply solution to the lens), wipe in circular motion starting at the

center and working around the edge and off in one complete motion. Be firm, but do not rub. Blow lightly to help

remove residual solution before it "spots" the surface. Residual dust from the cloth can be blown off.

Consult your local dealer or call Lunt Solar Systems with any questions or concerns.

Do not use Acetone or strong degreaser type products, household cleaning agents, paper towels, tissues with

added scent or color (plain tissues only), or bleach or acidic products which will damage the anodized surfaces.

What am I looking at?

The Sun is active on a daily basis. During solar maximum the Sun will put on awe inspiring displays that include

x-class flares, prominences, surface filaments, etc…

Prominences: These look like eruptions from the disk (edge) of the Sun. Prominences can be small spiky

looking details, or large cloud like detail with fine feather like internal features. They are, in fact, ionized

hydrogen emissions being projected from the limb. Prominences are anchored to the Sun's surface in the

mesosphere, and extend outwards into the Sun's troposphere.

Filaments: These are string like features on the surface of the Sun. At high resolution they take on a 3D effect

due to the cooler aspect of the filament contrasted against the bright, hotter, Sun. They are actually prominences

being viewed against the surface.

Spicules: A spicule is a dynamic jet of about 500km diameter on the Sun. It moves upwards at about 20 km/s

from the photosphere. Father Angelo Secchi of the Vatican Observatory in Rome discovered them in 1877. The

chromosphere is entirely composed of spicules. These features can be seen as "fur" around the edge of the

disk.

Plage: This is a bright region in the chromosphere of the Sun, typically found in regions of the chromosphere

near sunspots. The plage regions map closely to the faculae in the photosphere below, but the latter have much

smaller spatial scales. Faculae have a strong influence on the solar constant, and the more readily detectable

because chromospheric plage areas traditionally are used to monitor this influence.

Solar Flares: A solar flare is a violent explosion in the Sun's atmosphere. Solar flares take place in the solar

corona and chromospheres, heating plasma to tens of millions of Kelvin and accelerating electron, protons, and

heavier ions to near the speed of light. They produce electromagnetic radiation across the electromagnetic

spectrum at all wavelengths from long-wave radio to the shortest wavelength gamma rays. Most flares occur in

active regions around sunspots, where intense magnetic fields emerge from the Sun's surface into the corona.

Flares are powered by the sudden (timescales of minutes to tens of minutes) release of magnetic energy stored

in the corona.

Chromosphere: The chromosphere is a thin layer of the Sun's atmosphere just above the photosphere, roughly

10,000 kilometers deep (approximating to, if a little less than, the diameter of the Earth). The chromosphere is

more visually transparent than the photosphere. The name comes from the fact that it has a reddish color, as the

visual spectrum of the chromosphere is dominated by the deep red H-alpha spectral line of hydrogen.

The LS50FHα

αα Filter

Hydrogen-alpha filter system with 50mm aperture (no central obstruction) integrally tuned etalon for use on any

refractor and many other telescopes. Because the LS50 has an estimated bandwidth of <0.75 Angstrom it is

capable to providing high contrast views of both surface and edge detail. System includes a blocking filter

standard (B600 can be used at telescopes up to 540mm focal length, B1200 up to 1080mm, B1800 up to

1620mm, and B3400 up to 3060mm). The blocking filter is installed in a 90° star diagonal for 1.25” or 2" focuser.

This diagonal is equipped with a 1.25" eyepieces holder and a T2 camera connection. Only the B3400 is

installed in a straight tube with 2” connection. Adding an additional available Double Stack Etalon system will

reduce the bandwidth to ~<0.55 Angstrom (dependant upon scope).

What is delivered with the system?

- LS50FHa Main Filter for front mounting

- A blocking filter, B600, B1200, B1800 or B3400 (not included at the LS50FHa double stack filter)

- A transport case with die cut foam insert

- Instruction manual

What accessories are recommended?

- Eyepieces: Simple eyepieces with narrow field of view are recommended. (25mm thru 8mm)

- Adapter plate: To securely mount the LS50FHa to your scope.

- Sol Searcher: This makes finding the Sun much easier.

Produkt Specifikationer

Mærke:	Lunt Solar Systems
Kategori:	Ikke kategoriseret
Model:	LS50FHa

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