Omegon Pro Ritchey Chretien 154 Operating Manual Download

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Any form of reproduction of the entire contents of this document or parts thereof beyond the private use is strictly prohibited.

Subject to alterations and errors. All texts, illustrations and symbols are the property of nimax GmbH.

Operating Manual

Full Tube Ritchey Chretien Telescopes

Omegon® Pro Ritchey Chretien

154/203/254

German Version 6.2017 Rev A

53809; 53810; 53811

Summary of Contents for Pro Ritchey Chretien 154

Page 1: ...yond the private use is strictly prohibited Subject to alterations and errors All texts illustrations and symbols are the property of nimax GmbH Operating Manual Full Tube Ritchey Chretien Telescopes...

Page 2: ...oduce dot shaped stars right to the edge without the use of an additional corrector with smaller telescopes the remaining blurring can be completely corrected by using a field flattener Ritchey Chreti...

Page 3: ...Before you start using the equipment it is important to know the main control elements There are two groups of control elements as shown Fig 1 6 1 Optical tube 2 Secondary mirror 3 Secondary mirror ho...

Page 4: ...e the property of nimax GmbH 8 Finderbase Vixen standard 9 Cap nut to fasten the focuser 10 Focuser 11 Eyepiece clamping 12 Thumbscrew for 2 connection 12 Reducing adapter 2 1 25 with protection ring...

Page 5: ...ldn t it be much easier to simply make the tube of the eyepiece holder longer and do without spacer sleeves However this would be of disadvantage because the longer eyepiece holder tube would bend mor...

Page 6: ...pes such as e g the spherical Schmidt Cassegrain telescope or the very popular Newton telescopes with the Ritchey Chretien telescope you must take care not to change the distance between the two mirro...

Page 7: ...iece holder using the laser Make sure that the pressing screw of the eyepiece holder is slightly tightened so that the eyepiece holder moves neatly without skewing or slipping Now move the eyepiece ho...

Page 8: ...all circle is the image of the bright area in the collimation eyepiece iv The black border around the bright area is the secondary mirror holder with lens shade v The bright area around the black bord...

Page 9: ...d optical system the star disc will dance and drift because of air turbulence It is therefore necessary to keep looking through the eyepiece in order to be able to judge whether one sees a round symme...

Page 10: ...lic mirrors Mirror substrate BK 7 H K9L Obstruction caused by secondary mirror holder 72mm Lens shades 7 pieces internally Tube diameter 191mm Tube length without focuser 410mm Tube length with standa...

Page 11: ...ry mirror holder 95 mm 47 of diameter 22 of area Lens shades 10 pieces internally Tube diameter 229mm Tube length without focuser 470mm Tube length with standard focuser 560mm Tube weight without focu...

Page 12: ...diameter 18 75 of area Lens shades 7 pieces internally Tube diameter 299mm Tube length without focuser 625mm Tube length with standard focuser 722mm Tube weight without focuser 14 610g Tube weight wi...

Page 13: ...bited Subject to alterations and errors All texts illustrations and symbols are the property of nimax GmbH Appendix B Recommended accessories 33141 Omegon Collimation Eyepiece 4577 Omegon Newton Laser...

Page 14: ...may attack the coating of optical components 3 Eyepiece lenses since the optical components in eyepieces are near focus bigger dust particles will become visible e g dirt on eyelashes will disturb the...