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User Manuals for FocusersYou have selected the product series Optics - Telescopes - Accessories - Focusers. Now choose the brand, model or product code you are looking for. If it is not available, you can request it from customer support.Manufacturers – select a brand:
Alpine Astronomical - Celestron - Explore Scientific - iOptron - JMI Telescopes - Konus - Lumicon - Others - Tele Vue - Vixen Optics
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JMI Telescopes Motofocus for Orion ED |
Focusing is made easy with the JMI Motofocus MFOCRAY for the Orion ED APO telescopes. This Motofocus requires no drilling or tapping for mounting. It is a user friendly hand control with an electric focus motor that attaches to the shaft of a focuser knob (or the knob itself). It is battery operated and comes with the 9-volt battery. The Motofocus...
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JMI Telescopes Digi-Focus Counter for Meade |
The JMI Focus Counter is an excellent upgrade for the Meade SCTs. It is a low-cost mechanical alternative to the electronic digital readout (DRO). Its three-digit counter display allows 10 turns of the shaft before returning to zero. For focusing repeatability, it works well with manual and motorized NGF focusers, as well as SCT (Schmidt-Cassegrai...
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JMI Telescopes Motofocus for Takahashi 4" |
Focusing is made easy with the JMI Motofocus MFTAK4 for the Takahashi 4" telescope. This Motofocus requires no drilling or tapping for mounting. It is a user friendly hand control with an electric focus motor that attaches to the shaft of a focuser knob (or the knob itself). It is battery operated and comes with the 9-volt battery. The Motofocus o...
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JMI Telescopes EV-1C Focuser for Cassegrain |
The JMI EV-1C is a fine rack-and-pinion focuser designed to work with Cassegrain Telescopes from 6" to 16" diameter. It is a 2" anodized aluminum focuser equipped with rubber grip knobs, and a brass compression ring that won't scratch or mar eyepieces. It features dual-speed manual control for rapid and fine focus. The rapid focus adjustment ...
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JMI Telescopes Focuser Backup Plate-Curved |
JMI Focuser Backup Plate is specially curved and cut out to seat between a focuser's base and a Newtonian telescope to insure proper installation of the focuser. Table of Contents ...
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JMI Telescopes Focuser Backup Plate-Flat |
JMI Focuser Backup Plate is flat and cut out to seat between a focuser's base and a Cassegrain telescope to insure proper installation of the focuser. Table of Contents ...
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JMI Telescopes MOTOFOCUS Electric Telescope Focusing |
JMI Telescopes MOTOFOCUS is a motorized electronic focusing mechanism that affixes to your Meade ETX-90, ETX-105, and ETX-125 telescope's knob (all versions). It installs easily, and can be quickly detached for transport. MOTOFOCUS is particularly helpful with the ETX scopes when viewing near zenith, because it is very hard t...
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JMI Telescopes EV-2CM Focuser for Cassegrain |
The JMI EV-2CM is a fine motorized rack-and-pinion focuser designed to work with Cassegrain Telescopes from 6" to 16" diameter. It is a 2" black-anodized aluminum focuser equipped with rubber grip knobs, standard brass ring and reducer to accept 1.25" eyepieces. The EV-2CM can support up to 8 pounds. It features manual control for focusi...
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JMI Telescopes EV-1N Focuser for Newtonian |
The JMI EV-1N is a Crayford-style focuser designed to work with Newtonian Telescopes. It is a 2" black-anodized aluminum focuser equipped with rubber grip knobs, standard brass ring and reducer to accept 1.25" eyepieces. The EV-1N can support up to 8 pounds. It features dual-speed manual control capability for rapid and fine focus. The r...
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JMI Telescopes EV-3C Focuser for Cassegrain |
The JMI EV-3C is a fine rack-and-pinion focuser designed to work with Cassegrain Telescopes from 6" to 16" diameter. It is a 2" black-anodized aluminum focuser equipped with knurled knobs, standard brass ring and reducer to accept 1.25" eyepieces. The EV-3C can support up to 4 pounds. It features manual control for focusing, which is ove...
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| 1 ... 9 | 10 | 11 | 12 | | Showing: 101-110 products | Total: 111 products |
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