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100 Degree Series

These eyepieces are the world's first nitrogen-purged waterproof eyepiece with a 100° Apparent Field for astronomy. The sealed, dry environment is impervious to internal fogging and contaminants.

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5.5mm 100° Series Argon-Purged Waterproof Eyepiece

This 9mm eyepiece has a 100° Apparent Field Of View and the body of the eyepiece is nitrogen-purged and waterproof preserving the internal elements to remain as pristine as the day they were assembled. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. The waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal the eyepiece is tested in one meter of water for 30 minutes. The eyepiece features EMD™ (Enhanced Multilayer Deposition) Coatings.


Our price: $399.99 (€347.99)
Market price: $449.00 , save 11%
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9mm 100° Series Argon-Purged Waterproof Eyepiece

This 9mm eyepiece has a 100° Apparent Field Of View and the body of the eyepiece is nitrogen-purged and waterproof preserving the internal elements to remain as pristine as the day they were assembled. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. The waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal the eyepiece is tested in one meter of water for 30 minutes. The eyepiece features EMD™ (Enhanced Multilayer Deposition) Coatings.


Our price: $399.99 (€347.99)
Market price: $1049.99 , save 62%
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14mm 100° Series Argon-Purged Waterproof Eyepiece

Explore Ultra-Wide Eyepieces - Comfort, Quality, Value.


Our price: $449.99 (€391.49)
Market price: $1000.99 , save 55%
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20mm 100° Series Nitrogen-Purged Waterproof Eyepiece

These 20mm eyepieces have a 100° Apparent Field Of View and the body of the eyepiece is nitrogen-purged and waterproof preserving the internal elements to remain as pristine as the day they were assembled. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. The waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal the eyepiece is tested in one meter of water for 30 minutes. The eyepiece features EMD™ (Enhanced Multilayer Deposition) Coatings.


Our price: $449.99 (€391.49)
Market price: $733.99 , save 39%
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100° Series Argon-Purged Waterproof Eyepiece Kit

Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series™ eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 100° Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper-wide eyepiece design, objects are not only easier to locate, but for non-driven telescopes the object will stay in the field of view for a very long time before any adjustments need to be made.


Our price: $1099.99 (€956.99)
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25mm 100° Series Argon-Purged Waterproof Eyepiece

This 9mm eyepiece has a 100° Apparent Field Of View and the body of the eyepiece is nitrogen-purged and waterproof preserving the internal elements to remain as pristine as the day they were assembled. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. The waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal the eyepiece is tested in one meter of water for 30 minutes. The eyepiece features EMD™ (Enhanced Multilayer Deposition) Coatings.


Our price: $799.99 (€695.99)
Market price: $1049.99 , save 24%
Quantity
30mm 100° Series Argon-Purged Waterproof Eyepiece (3 inch)

This 9mm eyepiece has a 100° Apparent Field Of View and the body of the eyepiece is nitrogen-purged and waterproof preserving the internal elements to remain as pristine as the day they were assembled. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. The waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal the eyepiece is tested in one meter of water for 30 minutes. The eyepiece features EMD™ (Enhanced Multilayer Deposition) Coatings.


Our price: $999.99 (€869.99)
Market price: $1549.99 , save 35%
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