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ALEPH: Astronomy Precision Instruments & Technologies |
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Home > Intro > Prodotti e Servizi > Rifrattori > TMB |
Home > Intro > Products & Services > Refractors > TMB |
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TMB |
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Rifrattore apocromatico tripletto ED 130mm serie Signature |
TMB Signature Apochromat: 130mm f/7 ED Triplet |
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Tubo ottico Rifrattore TMB 130mm (5.1”) Focale = 910mm (35.7”) f / 7. Tripletto spaziato in aria con verto a bassissima dispersione (ED Glass; elemento centrale in FPL53) Focheggiatore a cremagliera elicoidale di precisione: diametro 4” con rotazione indipendente della sezione terminale; corsa 80mm; due manopole per manovrs standard e una per manovra con passo ridotto 1:10 coassiale alla manopola “di destra”. Blocco di scurezza. La sezione terminale del focheggiatore è rotabile indipendentemente dal resto del corpo de del tubo ottico, permettendo di comporre l'immagine sul sensore o di ruotare il diagonale in posizione comoda per l'osservatore senza rimuovere sensore o diagonale; una volta rotato, la sezione si blocca tramite manopola di serraggio. Paraluce retraibile, diaframmi interni a lama di coltello. Rifrattore ai vertici per impostazione del disegno, scelte costruttive, materiali, livello dell'esecuzione e performances. Cella compensata in temperatura e collimabile. Ottiche trattate con depositi antiriflesso multistrato di ultima generazione su tutte le superfici. Piedino per supporto sgancio rapido per supporto mod. CNC (non fornito) porta cercatore (non fornito). Cassa per trasporto con imbottitura alta densità, maniglie frontali, tre chiusure con serratura. Non sono compresi staffa a coda di rondine e anelli con cerniera.
Lunghezza tubo ottico: per il trasporto inferiore a mm 820; cn paraluce esteso mm 965. Ideato, sviluppato e costruito per usi avanzati, permette prestazioni di assoluto rilievo. Performances ai vertici negli usi visuali e in ripresa.
Restituisce immagini secche, contrastate, con fondo cielo scuro, colori saturi. Il disegnatore Thomas Back ha dichiarato che si tratta di uno dei migliori disegni in assoluto da lui sviluppato, e che ad oggi, questo è il rifrattore apocromatico di alta gamma con in assoluto il miglior rapporto prestazioni prezzo, e ancor più se lo si confronta con analoghi strumenti di maggiore diametro.
L'uso di un tripletto permettedi avere un controllo formidabile non solo del colore secondario (assolutamente assente: questo è un apocromatico puro, punto) ma anche delle aberrazioni extrassiali. Il risultato è un rifrattore che ha caratteristiche di massimo livello sia nelle applicazioni visuali che negli impieghi fotografici su grande formato (valorizzato dal focheggiatore da 4”, con sezione terminale orientabile senza smontare la camera).
Disponibile: con focheggiatore Standard o con focheggiatore Feathertouch 3.5" (quest'ultima è nostro allestimento di pronta consegna)
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la versione Aleph è fornita come standard con upgrade Feathertouch (r) 3.5"
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• 130mm f/7
air-spaced ED triplet optics The TMB-130 Signature Series refractor puts exceptionally high optical and mechanical quality in a easy-to-manage 32.25” package. It's ideal for the serious observer who will accept nothing less than unsurpassed imaging and visual observing performance.
It is one of
the finest optical instruments ever designed for the serious amateur
astronomer. Period. TMB-130 designer Thomas M. Back feels that this
apochromat refractor has the best price to performance of any apo
refractor on the market. Fully multicoated on all surfaces with the latest antireflection materials for exceptionally high light transmission and excellent contrast. Light transmission is so high that the optics seem to virtually disappear when viewed from head on.
The
precision-made focuser is a new 4” dual-speed rack and pinion design
with a built-in camera angle adjuster. The right knob also has a
smaller concentric knob with a 10:1 ratio reduction gear for
microfine focusing. The 85mm (3.35”) travel 4” diameter focuser
drawtube has a scale marked in 1mm increments. A large knob on top
of the focuser lets you lock in your photographic focus. Eyepiece adapters: Two eyepiece adapters are supplied. A 2” eyepiece adapter slips into the drawtube’s 4” to 2” step-down adapter and uses a soft brass compression ring to hold 2” star diagonals and accessories in place. A separate 1.25” compression ring eyepiece/star diagonal holder is also supplied that fits in turn into the 2” adapter. Finderscope mounting shoe: No finderscope is supplied, but a quick-release dovetail mounting show is provided on the top of the focuser body for mounting an optional finderscope and most standard finderscope brackets. Mounting rings: No mounting rings are supplied with the 142mm diameter optical tube. Optional TMB split felt-lined mounting rings are available for mounting the scope on a suitable equatorial mount, such as a Losmandy G-11. The image above shows the scope in these optional rings. Carrying case: The TMB-130 comes standard with a locking hard case for transportation and general protection purposes.
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TMB-80 Signature Series 80mm f/6.3 ED triplet apochromatic refractor |
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Versione con intubazione in fibra di carbonio (finitura even smooth) e focheggiatore Feathertouch (r)
Versione con finitura laccata bianca
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• 80mm f/6.3 apochromatic triplet
optics using FPL-53 ED glass The TMB-80 Signature Series puts exceptionally high optical and mechanical quality in a tiny portable package. It is ideal for the serious observer who will accept nothing less than unsurpassed imaging and visual observing performance. The TMB-80 is an exceptional 15.25" long grab and go scope for observing and imaging – both within the solar system and out to the furthest reaches of infinity. Its images of subtle low-contrast lunar and planetary details are razor-sharp, with realistic and highly saturated color. Those images are free from chromatic aberration of any type, thanks to the scope’s ED (Extra-low Dispersion glass) triplet optics. The latest antireflection multicoatings and knife-edge internal baffles assure the maximum image contrast possible. Image excellence is limited only by the seeing conditions, not by any aberration or short-coming in the telescope. This Telescope’s Optical and Mechanical Systems . . . Apochromatic triplet ED refractor optics: 3.1" (80mm) aperture, 504mm focal length, f/6.3 triplet lens using an FPL-53 ED (Extra-low Dispersion) glass element for a sharp and flat field and images that are high in contrast and free from spurious color (chromatic aberration).
Multicoated optics: Fully multicoated on all surfaces with the latest antireflection materials for exceptionally high light transmission and excellent contrast. Light transmission is so high that the optics seem to virtually disappear when viewed from head on.
Internal light baffles: Contrast-enhancing knife-edge light baffles in the optical tube provide truly dark sky backgrounds and high terrestrial contrast. In addition, the edges of the objective lens are blackened to eliminate contrast-reducing stray internal reflections.
Retractable dew shield: The self-storing retractable dew shield/lens shade slows the formation of dew on the lens to extend your undisturbed observing time. Also improves visual and photographic contrast by shielding the lens from off-axis ambient light (the neighbor’s yard light, moonlight, etc.)
Dual-speed microfine 2" Crayford focuser: The precision-made focuser has dual-speed focusing. There are two coarse focusing knobs. The right knob also has a smaller concentric knob with an 11:1 reduction gear microfine focusing ratio. This provides exceptionally precise image control during very high magnification visual observing, and during critical 35mm or CCD imaging. The coarse focus knobs have knurled rubber gripping surfaces, while the fine focus knob is ribbed, so all are easy to operate, even while wearing gloves or mittens in cold weather.
Rotating focuser: The anodized red ribbed locking ring on the body of the scope allows the focuser to be rotated a full 360°. This lets you rotate the focuser to line up a camera in either a landscape or portrait orientation (or any orientation in between), as well as put a star diagonal and eyepiece into the most comfortable observing position, and then temporarily lock the focuser in that position. Turn the ring to the left to loosen the focuser, and back to the right to tighten it in place again.
Focusing scale: The 80mm (3.1") travel focuser drawtube has a scale marked in 1mm increments so you can note individual focuser positions for easy return to the correct focus when switching between visual use and photography. A lock knob under the focuser lets you lock in your photographic focus.
Compression ring eyepiece holders: The focuser drawtube ends in a 2" eyepiece holder that uses a non-marring soft brass compression ring to hold a 2" star diagonal and accessories in place. The compression ring won’t scratch the barrel of your star diagonal and accessories as an ordinary thumbscrew can. Also supplied is a 1.25" eyepiece holder that slips into the 2" compression ring holder to let you use a 1.25" star diagonal or image erecting diagonal. Like the 2" eyepiece holder on the focuser drawtube, the 1.25" adapter also uses a non-marring soft brass compression ring to hold 1.25" star diagonals and accessories in place.
Combined equatorial dovetail/tripod
adapter: The TMB-80 has a removable L-shaped dovetail mounting shoe/tripod
adapter. The 1.75" wide x 2.85" long mounting shoe is sized and
shaped (with slanted sides) to fit the dovetail slot on the head of
many equatorial and altazimuth mounts. It will fit, without
modification, Celestron Advanced Series, Meade LXD-75, and Vixen
Great Polaris, Porta, and Sphinx mounts, among others.
Tube finish: The optical tube is finished in a durable baked-on automotive white paint with a liquid-anodized black focuser and trim and a red-anodized focuser rotation locking collar.
Shipping/storage case: The TMB-80
comes standard in a 22.5" x 12.75" x 8" locking hard case with a
carry handle for transportation and general protection purposes.
Other supplied accessories: A slip-on metal dust cap is standard. A threaded hole for installing a finderscope (such as the Astro-Tech #ATF multiple reticle finder) is located on the upper left side of the scope body in front of the focuser lock ring.
Two year warranty: As an expression of the confidence TMB Optical has in the quality of their products, the TMB-80 is protected by a two-year limited warranty against flaws in materials and workmanship (shipping case excluded).
Apertura libera: 3.1" - 80mm Limiting Mangitude: Focal lenght: 504mm Focal Ratio: f/6.3 Resolution: 1.45 arc seconds peso: 3.1 kg |
