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Orion 150 Mak

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#1 Rick L.

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Posted 01 September 2005 - 08:17 AM

Anyone used one of these or know much about them?

#2 snorkler

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Posted 11 September 2005 - 03:37 PM

Joe Rome on the yahoogroups.com Orion Telescopes group has one and likes it very much. I don't know about the Mak mystique, but the bigger ones are probably better. A 6" scope is still a 6" scope.

#3 Gaz O'C

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Posted 12 September 2005 - 11:17 AM

Don't tell that to the Apo owners! :tonofbricks: ;)

#4 darylf96

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Posted 12 September 2005 - 06:07 PM

Maks are designed to provide long focal length scopes with relatively short tube lengths. So, if your interest is in a long focal length scope with a large aperture, then you would like the 150mm mak. The focal length is 1800mm, a ratio of F12. The problem with this type of scope is that it has limited applications, and in my view might disappoint a new scope owner who finds that the narrow field of view is too restrictive. Orion now carries the Schmidt Cas, which is much more flexible and will take accessories that allow all kinds of photo and visual applications. If this is to be a first scope or your only scope, I would check out the SCT.

#5 Rick L.

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Posted 12 September 2005 - 06:52 PM

Thanks for the input. Not sure yet what I am going to buy.

#6 Rusty

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Posted 12 September 2005 - 09:18 PM

There are f/10 6" MCTs out there (Intes Micro for one).

#7 Bob Pasken

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Posted 12 September 2005 - 10:30 PM

Assuming a 1.25" 32mm Televue plossl with a 55 deg AFOV, and a 6" f/12 (1800mm) Mak I get 56 power and a 0.98 deg TFOV. If I can use a 2" eyepiece then my University Optics 55mm eyepiece with a 45 AFOV gives 33 power and 1.4 deg TFOV. How is a 1 deg TFOV narrow? The 32mm Televue used with my OTI Quantum-4 Mak (4" f/15) gives a TFOV of 1.2 deg. Since the setting circles have 1 deg divisions the TFOV is larger than a setting cirlce division. I have very little trouble finding anything. I don't know if there is a 6" SCT, but they are typically f/10 (60" focal length). This gives the same power and field of view as my Quantum-4 not much different than the hypothetical 6" SCT


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