Meade MAX-ACF Manual de usuario descargar pdf (Pagina 3)

Imagine you’re a seasoned astrophotographer saving up for the fast f-ratio, wide-field, coma-

free, custom telescope of a lifetime. One that can handle the largest CCD chips. One with state-

of-the-art optics and mechanics. One that is praised as “approaching perfection by industry

critics and astronomers alike. Suddenly you find out your telescope is available for one-fifth

of what you thought—and you won’t have to wait six months for it to be built. What would you

do? You’d buy one.

Sky & Telescope Magazine says the 20 MAX-ACF “fills a significant gap that existed between similar

aperture Schmidt-Cassegrains and custom-made Ritchey-Chrétien reflectors. Until now, the

only systems comparable to the 20 MAX-ACF were custom-made and had to be pieced together with

components from different vendors. To deliver a comparable research-grade system, fully integrated,

out-of-the-box, would be a grand achievement at half the price. At less than one-third of the price,

it’s a miracle. That explains why the 20 MAX-ACF won a 2005 “Best of What’s New Award from Popular

Science Magazine.

Sky & Telescope’s glowing review ended with this thought: “Some hobbyists mistakenly believe

that a product review without equal doses of praise and criticism is biased or unbalanced. Truth is,

I can’t find many negative things to say about the 20 MAX-ACF…the 20 MAX-ACF is a winner.

Paten t-Pending (f/8) A dva nced Com a-Fr ee opt ics. Astrophotographer Jason Ware says “the

20” MAX-ACF is a huge jump [over the Schmidt-Cassegrain] as far as sharpness of image, flatness of field, and color.” The fast

(f/8) Advanced Coma-Free design produces a large, coma-free field of view from edge-to-edge. The corrector plate reduces

astigmatism inherent in the traditional RC design.

Legendary Diffraction-limited optics. Only Meade individually gures their Water White glass

corrector lenses and Pyrex

primary and secondary mirrors in our own plant in Mexico for observatory-class light transmission,

temperature stability, smoothness and image correction. Advanced Coma-Free Optics are Meade’s very best. And our optics lead

the industry.

Laser-Align ed, Fi xed Oversiz ed P r imary M i rror . Laser aligned to the true optical path, then

bonded in place, the mirror is fixed but literally floats on neoprene rubber seals. This results in zero stress to the glass and no

distortion to the optics.

Ele ct ronic Fron t Focusing Syst em. Patent-pending digital system electronically moves the entire

front cell (corrector lens and secondary) in precise increments as fine as 1/1000 of a millimeter. A fixed primary means no

image shift or focus backlash. Sky & Telescope says, “I’ve never used an electric focusing system that I liked more.”

Nine Focus Posi tion Presets. Customize up to nine perfect focus settings for moving from eyepiece to

eyepiece, camera to camera, or observer to observer. Recall preset positions with the touch of a few buttons.

Ele ct ronic Collimat ion. The very best astrophotographs come from well-collimated (aligned) optics.

The 20” MAX-ACF’s unique collimation process is so easy that you can collimate in just seconds with simple up-down/left-

right buttons on the AutoStar

II controller.

Built-I n A n ti-Dew H eater. A unique heating coil is affixed to the outside edge of the corrector lens.

Temperature is adjusted via the AutoStar II controller. Uses a fraction of the energy of aftermarket anti-dew heaters.

Sky & Telescope says it “worked exceptionally well.”

Son y

GPS Recei ver Se nsor. Automatically inputs exact time, date, and geographical location to help quickly

and precisely align your telescope. Gets a satellite fix in seconds despite obstructions like trees or buildings.

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Meade MAX-ACF Manual de usuario Pagina 3

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