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Oculari AT		AT Eyepieces
Oculari Serie Titan (codice Aleph: CRP)	Oculari Serie 6 (codice Aleph C&P)	Titan Series AT eyepieces	Series 6 AT eyepieces
Titan CRP 10mm	-	Titan CRP 10mm	-
Titan CRP 15mm	-	Titan CRP 15mm	-
Titan CRP 20mm	-	Titan CRP 20mm	-
Titan CRP 26mm	-	Titan CRP 26mm	-
Titan CRP 32mm	-	Titan CRP 32mm	-
Titan CRP 38mm	-	Titan CRP 38mm	-

Titan 10mm

La serie Titan propone oculari che implementano uno schema ottico grandangolare realizzato con cura e montato in una meccanica con i dovuti accorgimenti per permettere osservazioni piacevoli e ben corrette.

Il 10mm ha barilotto 1.25", estrazione pupillare di 7mm, campo apparente di 70°, schema ottico a 5 elementi.

Il trattamento a/r multistrato su tutte le superfici aria/vetro, gli acorgimenti antiglare (anodizzazione nera, rilievo antiglare sullameccanica, bordo lenti annerito) abbatte i riflessi parassiti, e rendono le visioni detagliate, incise e con un fondo cielo nero flat quale all'origine.

Gli oculari grandangolari più recenti che permettono qualità certa ad un prezzo molto concorrenziale.

Perfetta prima scelta per l'amatore attento al prezzo che non vuole rinuncuare alla qualità; prezzo concorrenziale che li rende perfetti sia per sostituire gli oculari di bassa fascia normalmente forniti in dotazione con i telescopi "in pacchetto", sia per completare una serie avanzata di oculari.

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This Astro-Tech 10mm Titan is a very wide 70° field medium to medium-high power 1.25" eyepiece at a very economical price. Its 10mm focal length makes it a good choice for high power lunar/planetary observing and binary star splitting with a long focal length telescope.

For instance, with an 8" f/10 catadioptric, it provides 200x with a 1mm exit pupil, the optimum exit pupil generally recommended to best match the resolution of your telescope to the resolution of your eye. The field of view with such an 8" f/10 scope is a surprising 0.35° at 200x, nearly three-quarters the lunar diameter.

With short focal length refractors and fast focal ratio reflectors, it makes globular clusters and compact nebulas vivid and nearly three-dimensional. A f/4 Meade 8" Schmidt-Newtonian reflector, for example, yields a 2.5mm exit pupil, 81x, and a generous 0.86° field of view that’s perfect for globular clusters like M9, M13, and M22. All fit nicely into the eyepiece field of view, with a framework of black velvet sky around them to set off their subtleties.

The 66mm f/6 Astro-Tech AT-66 refractor, on the other hand, has a magnification of 40x with this eyepiece, with a 1.66mm exit pupil and a generous 1.75° field (three and a half times as wide as the full Moon). That wide field is good for observing open clusters such as the Pleiades and the Double Cluster in Perseus; large nebulas such as the Lagoon, Veil, and Orion; and large globulars such as M-13 and Omega Centauri. All will fit nicely into the field of view, with a framework of black velvet sky around them to set off their subtleties.

The 7mm eye relief is somewhat short for those who must wear eyeglasses while observing due to astigmatism, and will somewhat vignette the field. This is of minor concern, as even those who don’t have to wear glasses while observing will find they have to move their head from side to side while observing to see the entire huge field of view

Titan 15mm

Il 15mm ha barilotto 1.25", estrazione pupillare di 7mm, campo apparente di 70°, schema ottico a 5 elementi.

Gli oculari grandangolari più recenti che permettono qualità certa ad un prezzo molto concorrenziale.

Contattateci per nostra migliore offerta

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This Astro-Tech 15mm Titan is a very wide 70° field medium power 1.25" eyepiece at a very economical price. It is ideal for lunar observing, resolving globular clusters, picking up detail in emission and reflection nebulas, etc. Its 15mm focal length nicely fills the gap between the 25/26mm eyepiece that typically comes as standard equipment with most telescopes and an 8/10mm high power planetary/binary star splitting eyepiece.

With short focal length refractors and fast focal ratio reflectors, it gives an extraordinary “picture window on space" image. A f/4 Meade 8" Schmidt-Newtonian reflector, for example, yields a 3.75mm exit pupil, 54x, and a generous 1.3° field of view that’s good for observing open clusters such as the Pleiades; large nebulas such as the Lagoon, Veil, and Orion; and large globulars such as M-13 and Omega Centauri. All will fit nicely into the field of view, with a framework of black velvet sky around them to set off their subtleties. Globular clusters and nebulas are vivid and nearly three-dimensional.

The 66mm f/6 Astro-Tech AT-66 refractor, on the other hand, has a magnification of 27x with this eyepiece, with a 2.5mm exit pupil and an immense 2.63° field (over five times as wide as the full Moon).

Even medium and long focal length telescopes provide impressive views. Use this 15mm Titan on an 8" f/10 catadioptric scope and you still get a 0.52° field at 133x, perfect for the Moon and globular clusters like M9, M13, and M22.

Titan 20mm

Il 20mm ha barilotto 1.25", estrazione pupillare di 11mm, campo apparente di 70°, schema ottico a 5 elementi.

Gli oculari grandangolari più recenti che permettono qualità certa ad un prezzo molto concorrenziale.

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This Astro-Tech 20mm Titan is a very wide 70° field medium power 1.25" eyepiece at a very economical price. The calculator below will let you see just how wide the field will be with your particular scope. For example, it will give you a wide 1.23° field and a bright 4.4mm exit pupil at 57x with a 10" f/4.5 Dobsonian. This will give you almost five minutes to observe an object as it drifts from one side of the eyepiece’s flat field to the other in such a scope. That’s plenty of time for multiple observers to look at the object or for you to absorb as much detail as possible before having to reposition the scope. With short focal length refractors, the 20mm Titan is a low power, very wide field eyepiece. With the 400mm focal length Astro-Tech AT-66, for example, it provides 20x, a 3.3mm exit pupil, and a huge 3.5° field of view that’s seven times as wide as the Moon.

While it’s particularly well-suited for use with Dobsonian scopes and short focal length refractors, it can provide “picture window onto space" images with any telescope type. Even medium and long focal length telescopes provide impressive views. Use this 20mm Titan on an 8" f/10 catadioptric scope and you still get a 0.7° field at 100x, perfect for the Moon and globular clusters like M9, M13, and M22. The low price of this eyepiece also makes it a very affordable choice to buy in pairs for binoviewer.

Its 11mm eye relief is quite reasonable for this focal length, although it can somewhat limit the field for eyeglass wearers. Since the Astro-Tech field is substantially wider to begin with than most other eyepieces in this price range, most eyeglass wearers won’t find the minor vignetting to be a drawback. Those who don’t wear glasses will see a huge field at only a fraction the cost of many more exotic wide field eyepiece designs.

Titan 26mm 2"

Il 25mm apre la serie dei Titan con barilotto da 2":una soluzione che altri marchi non impiegano (limitandosi a barilotti da 1.25" anche con esemplari grandangolari); il barilotto 2" fdell'AT Titan da 25mm è una necessità dovuta all'ampio campo di 70° (che verrebbe vignettato nell'uso di barilotti 1.25") ben corretto, che accompagna l'estrazione pupillare di 13mm,; lo schema ottico conta 5 elementi.

AT Titan: gli oculari grandangolari più recenti che permettono qualità certa ad un prezzo molto concorrenziale, parametri che vengono ulteriormente sottolineati con la serie dei Titan da 2".

Focale preferita sui telescopi con rapporto focale medio/corto (circa f/5-f/6) per nomn avere pupille di uscita eccessivamente ampie, ma sfruttando i vantaggi del grande campo reale dei grandangolari da 2".

Eccellente scelta per gli appassiojnati del Deep sky che vogliono qualità, presdtaizoni ottiche, cura costruttiva, strumenti di ultima generazione a prezzo competitivo.

Contattateci per nostra migliore offerta

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This Astro-Tech 26mm Titan is medium power super wide angle 2" eyepiece with a very wide 70° field at a very economical price. It provides “picture window onto space" images with any telescope type. If you have a 2" star diagonal or focuser, it will nearly double the area of the field of view visible through the 25mm or 26mm eyepiece that comes standard with most new telescopes. The calculator below will let you see just how wide the field will be with your particular scope.

For example, with an 8" f/10 catadioptric it will give you a wide 0.91° actual field (0.65 square degrees in area) at 76.9x. This compares with the 0.65° actual field (0.33 square degrees in area) that you get at the same power with the typical 26mm Plössl supplied with most such scopes. The 26mm Astro-Tech Titan is a clear upgrade from the so-so eyepieces provided with most new catadioptrics.

With Dobsonians and short focal length refractors, the 26mm Titan is a superb low power eyepiece. With a 1143mm focal length 10" f/4.5 Dobsonian, for example, it provides 44x, a bright 5.8mm exit pupil, and a wide 1.6° field of view that’s over three times as wide as the Moon. It takes an object nearly six and a half minutes to cross that field of view, giving multiple observers plenty of time to take a look before you have to manually re-aim the scope. The 26mm Titan is a great eyepiece for family observing and star parties with a Dobsonian.

With a small refractor like the 80mm f/6.8 Astro-Tech AT-80ED, the 26mm Titan provides a huge 3.3° field at 21.2x. That makes it ideal for very wide field views of galaxy clusters, the larger nebulas, open clusters, and more.

Its 13mm eye relief is quite reasonable for this focal length, although it can somewhat limit the field for eyeglass wearers. Since the Astro-Tech Titan field is substantially wider to begin with than most other eyepieces in this price range, most eyeglass wearers won’t find the minor vignetting to be a drawback. Those who don’t wear glasses will see a huge field at only a fraction the cost of a more exotic super wide angle eyepiece.

Titan 32mm 2"

Ampio campo di 70° ben corretto, che accompagna la comodissima estrazione pupillare di 17mm,; lo schema ottico conta 5 elementi-

AT Titan: gli oculari grandangolari più recenti che permettono qualità certa ad un prezzo molto concorrenziale, parametri che vengono ulteriormente sottolineati con la serie dei Titan da 2".

Focale preferita sui telescopi con rapporto focale medio/corto f/5-f/8 (dove restituisce pupilla di uscita di 6 - 4mm).

Eccellente scelta per gli appassiojnati del Deep sky che vogliono qualità, presdtaizoni ottiche, cura costruttiva, strumenti di ultima generazione a prezzo competitivo.

Contattateci per nostra migliore offerta

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This Astro-Tech 32mm Titan is low power super wide angle 2" eyepiece with a very wide 70° field at a very economical price. It provides “picture window onto space" images with any telescope type. If you have a 2" star diagonal or focuser, it will nearly double the area of the field of view that’s visible through a high quality 32mm Plössl eyepiece that typically can cost up to $35 or $40 more than the Titan’s sensible price.

For example, with an 8" f/10 catadioptric it will give you a wide 1.12° actual field (0.99 square degrees in area and well over twice the diameter of the full Moon) at 62.5x. This compares with the 0.8° actual field (0.5 square degrees in area) that you get at the same magnification with the 50° apparent field of a typical high grade 32mm Plössl.

With Dobsonians and short focal length refractors, the 26mm Titan is a superb low power eyepiece. With an f/4.5 Dobsonian, however, it starts pushing the envelope of your eye’s abilities. The Titan’s 32mm focal length yields a 7.11mm exit pupil on an f/4.5 scope, somewhat larger than most eyes can dilate. You might actually start losing some of the light-gathering capability of your Dob, as some of that 7.11mm eyepiece exit pupil might fall on your eye’s iris, rather than enter your eye.

With an 8" f/6 Dob, however, the 32mm Titan provides 38x, a bright 5.33mm exit pupil, and a wide 1.84° field of view that’s over three times wider than the full Moon. It takes an object nearly seven and a half minutes to cross that wide field of view, giving multiple observers plenty of time to take a look before you have to manually re-aim the scope. The 32mm Titan is a great eyepiece for family observing and star parties with an 8" f/6 or 6" f/8 Dobsonian.

With a small refractor like the 80mm f/6.8 Astro-Tech AT-80ED, the 32mm Titan provides a huge 4.07° field at 17.2x. That makes it ideal for very wide field views of galaxy clusters, the larger nebulas, open clusters, and more.

Its 17mm eye relief will provide virtually unvignetted viewing for eyeglass wearers. But whether you wear eyeglasses or not, the 32mm Astro-Tech Titan will give you a huge field of view at only a fraction the cost of a more exotic super wide angle eyepiece.

Titam 38mm 2"

Il 38mm "chiude verso l'alto" la serie dei Titan con barilotto da 2": ampio campo di 70° (che verrebbe vignettato nell'uso di barilotti 1.25") ben corretto, che accompagna la comodissima estrazione pupillare di 20mm; lo schema ottico conta 5 elementi.

AT Titan: gli oculari grandangolari più recenti che permettono qualità certa ad un prezzo molto concorrenziale, parametri che vengono ulteriormente sottolineati con la serie dei Titan da 2".

Focale preferita per minimizzare gli ingrandimenti ve il fattore di scala dell'oggetto osservato, massimizzandone la luminosità geometrica.

Eccellente scelta per gli appassiojnati del Deep sky che vogliono qualità, presdtaizoni ottiche, cura costruttiva, strumenti di ultima generazione a prezzo competitivo.

Contattateci per nostra migliore offerta

torna in alto

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This 2" Astro-Tech 38mm Titan is a really big low power eyepiece with a super wide angle wide 70° field . . . at a surprisingly economical price. It provides dramatic “picture window onto space" images with virtually any telescope that uses a 2" star diagonal or focuser.

For example, with an 8" f/10 catadioptric it will give you a wide 1.33° actual field (well over two and a half times the diameter of the full Moon) at 52.6x. With f/6 and f/8 Dobsonians and short focal length refractors, the 38mm Titan is a superb low power eyepiece.

With an f/4.5 Dobsonian, however, it has an 8.44mm exit pupil, significantly larger than the maximum diameter to which most eyes can dilate. You will lose a significant portion of the light-gathering capability of your f/4.5 Dob with the 38mm Titan, as about 30% of that 8.44mm eyepiece exit pupil will fall on your eye’s iris, rather than usefully entering your eye. With an 8" f/6 Dob, however, the 38mm Titan provides 32x, a very bright 6.33mm exit pupil, and a wide 2.19° field of view that’s well over four times wider than the full Moon. It takes an object nearly nine minutes to cross that very wide field, giving multiple observers plenty of time to take a look before you have to manually re-aim your scope. The 38mm Titan is a great eyepiece for family observing and star parties with an 8" f/6 or 6" f/8 Dobsonian.

Please note the 24.8 ounce weight of this eyepiece if you have a Dobsonian scope. It may pose a balance problem with some Dobsonians when switching to the 38mm from a much lighter 1.25" eyepiece. Use of the 38mm Titan may require some temporary rebalancing of your scope, or the use of a TeleVue #TVEQC equalizing adapter with 1.25" eyepieces to avoid balance problems.

With a small refractor like the 80mm f/6.8 Astro-Tech AT-80ED, the 38mm Titan provides a huge 4.84° field at 14.5x. That makes the scope its own best finderscope and ideal for very wide field views of galaxy clusters, the larger nebulas, open clusters, the star clouds in Sagittarius, and more.

The Titan’s 20mm eye relief provides unvignetted viewing for eyeglass wearers. But whether you wear eyeglasses or not, you will find you have to move your head from side to side while observing to see the entire Cinemascope-type field. The 38mm Astro-Tech Titan gives you a huge field of view at only a fraction the cost of a more exotic super wide angle eyepiece.