CELESTRON 94248 EclipSmart Solar Filter

Specifications

• Product Name: Solar Filter
• Models: #94248 for StarSense Explorer LT 114 & PowerSeeker 114, #94249 for AstroMaster 114 EQ & 114AZ-SR, #94250 for AstroMaster 130 EQ
• Material: ISO-certified solar filter material

Product Usage Instructions

Handling the Filter

When handling the filter, hold it by the outer edges of the plastic filter cell. Avoid touching the filter material. Do not use cleaning chemicals or brushes on the material. Use compressed air to remove dust. Small smudges or fingerprints do not affect performance. Store the filter in its original box when not in use.

Installing the Filter

1. Remove the protective cap and inspect the filter surface under a bright light. Do not use if there are holes or damage.
2. Replace your telescope’s lens cap with the solar filter; it should fit snugly based on your telescope’s design.

Attaching Safety Straps

1. Peel off two self-adhesive Velcro tabs and stick them on opposite sides of the top surface of the filter.
2. Attach the remaining two tabs on the side of the telescope’s front cell adjacent to the top tabs.
3. Use Velcro strips to connect each pair of tabs and secure the filter to the telescope.

Locating the Sun in the Telescope

• The Sun will appear as an orange disk in the eyepiece. Use the focusing knobs until the solar disk’s edge appears sharp.

Removing the Finderscope

• Remove the finderscope before observing the Sun through the telescope.

FAQ

• Q: What should I do if I notice damage to the filter surface?
• A: If you see holes or damage on the filter surface, do not use it for solar observation.
• Q: How should I clean the filter?
• A: Use compressed air to remove dust from the filter. Avoid using cleaning chemicals or brushes.
• Q: How do I know if the filter is properly installed?
• A: The solar filter should fit snugly based on your telescope’s design. Ensure it is securely attached with safety straps.

SOLAR FILTER

• 94248 for StarSense Explorer LT 114 & PowerSeeker 114

• 94249 for AstroMaster 114 EQ & 114AZ-SR

• 94250 for AstroMaster 130 EQ

The solar filter material used in this product:

• Conforms to and meets the Transmission Requirements of ISO 12312-2, Filters for Direct Observation of the Sun.
• Meets the Transmission Requirements of EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun.
• Meets the Transmission Requirements of AS/NZS 1338.1:2012, Filters for Eye Protectors. EC Type Examination by: SAI Global Assurance Services Ltd. (Notified Body No. NB2056), MK5 8HJ U.K.

SOLAR WARNING
Even though your EclipSmart solar filter is equipped with ISO-certified material that allows safe direct observation of the Sun, there are still some important rules you should follow when solar observing:

• Never look directly at the Sun with the naked eye or with a telescope unless you have the proper solar filter. Permanent and irreversible eye damage may result.
• Never use a telescope to project an image of the Sun onto any surface. Internal heat build-up can damage the telescope and any accessories attached to it.
• Never use an eyepiece solar filter or a Herschel wedge. Internal heat build-up inside the telescope can cause these devices to crack or break, allowing unfiltered sunlight to pass through to the eye.
• Do not leave the telescope unsupervised, especially when children or adults unfamiliar with the correct operating procedures of your telescope are present.

HANDLING THE FILTER

• When handling the filter, hold it by the outer edges of the plastic filter cell.
• Do not touch or make contact with the filter material.
• Do not use any cleaning chemicals or brushes to clean the material.
• If you need to remove dust from the filter, use compressed air to blow it clean.
• Small smudges or fingerprints will not affect the filter’s performance.
• When you are not using the filter, store it in its original box.

INSTALLING THE FILTER

• Before installing your filter, remove the protective cap (if your filter has one) and inspect its surface carefully under a bright light source.
• If you see holes or damage to the surface of the filter, do not use it.
• When you are ready to install the filter, remove your telescope’s lens cap and replace it with the solar filter.
• Each filter is based on the design of your telescope’s lens cap and should fit snugly.
• The filter slides inside of the front cell of your telescope.
• Spin the entire cap so that the filter fits between your secondary mirror’s spider vanes, free from obstruction.
• To attach the safety straps, peel the backing off two of the 1” x 1” self-adhesive Velcro tabs and stick them on opposite sides of the top surface of the filter (Figure 1).

With the filter installed, stick the remaining two 1” x 1” tabs on the side of the telescope’s front cell immediately adjacent to the tabs you placed on the top surface of the filter (Figure 2). Use the two 4” Velcro strips to connect each pair of tabs and secure the filter to the telescope (Figure 3).

REMOVE THE FINDERSCOPE

• When observing the Sun, you should completely remove the optical finderscope from the telescope.
• Allowing the Sun to shine through an optical finderscope will result in a focused beam of sunlight that can cause burns or permanent damage to the finderscope.
• Never rely on the lens caps to stay secured to the finderscope.
• If you’re concerned you won’t be able to point the telescope at the Sun without a finderscope, don’t worry.
• Locating the Sun without a finderscope is very simple, as we’ll explain in the next section.

LOCATING THE SUN IN THE TELESCOPE

• Without directly looking at the Sun, turn the scope so the filter is pointed in the Sun’s general direction.
• Next, turn around and look at the telescope’s shadow on the ground.
• Move the scope to adjust its position until the telescope tube’s shadow appears perfectly round.
• If you are slightly off, the shadow will appear oval or elongated. When you have pointed the telescope correctly, the Sun should be within the field of view of your lowest power eyepiece.
• If it is not, look through the eyepiece and slowly move the scope in a circular pattern.
• You should find it in no time.
• The Sun will appear as an orange disk in the eyepiece.
• Use your telescope’s focusing knobs as you normally would until the edge of the solar disk appears sharp.

©2023 Celestron. Celestron and Symbol are trademarks of Celestron,

CONTACT

• ©2023 Celestron. Celestron and Symbol are trademarks of Celestron,
• LLC. All rights reserved. Celestron.com • 2835 Columbia Street, Torrance, CA 90503 USA
• Product design and specifications are subject to change without prior notification. This product is designed and intended for use by those 14 years of age and older. 08-23

References

• Celestron - Telescopes, Telescope Accessories, Outdoor and Scientific Products
• Warranty | Celestron

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