OPTIQUE ET VISION
6 bis avenue de l'esterel BP69 06162 JUAN LES PINS
Tél.04.93.61.18.83 Fax.04.92.93.09.83
ovision@aol.com
6 bis avenue de l'esterel BP69 06162 JUAN LES PINS
Tél.04.93.61.18.83 Fax.04.92.93.09.83
ovision@aol.com
Optique et Vision announces:
the new concept "NS"
the new concept "NS"
Thanks to our large experience and partnership with our provider and partner Scott Losmandy, we were the first to:
- install a Vixen Skysensor system whereas the Gemini goto system did not exist yet.
- measure and replace the worm of the mountings to obtain the lower periodic error as possible.
- to develop and produce a new concept of high precision worms for GM8 and G11 mountings, and coupling them to high precision bearings to increase the overall tracking performance. This design was successfuly applied to other mountings brands.
- to develop and produce additionnal mechanical parts to improve performance and comfort in imaging.
After new recent studies, Optique et Vision is proud to announce a new technical improvement for Losmandy german equatorial mountings: the " NS " evolution concept.
- install a Vixen Skysensor system whereas the Gemini goto system did not exist yet.
- measure and replace the worm of the mountings to obtain the lower periodic error as possible.
- to develop and produce a new concept of high precision worms for GM8 and G11 mountings, and coupling them to high precision bearings to increase the overall tracking performance. This design was successfuly applied to other mountings brands.
- to develop and produce additionnal mechanical parts to improve performance and comfort in imaging.
After new recent studies, Optique et Vision is proud to announce a new technical improvement for Losmandy german equatorial mountings: the " NS " evolution concept.
Double click to edit
Move your pointer on the image to see the newest NS version and the previous NG with cover removed
The two different mounting systems:
- above the one we used until end of 2007.
- below the new NS housing.
- above the one we used until end of 2007.
- below the new NS housing.
The back of the system, showing the moutning threads.
The assembled housing, ready for installation on the mount.
The new G11 NS design was first shown at Explor'Espace event in Mandelieu in november 2007, and was the center of interest for many people.
A technical note was available for visitors, that you can find at this link.
Depending on the mount you use and user's choice, the kit is available in different configurations:
1. Housing and " NS " worm and bearings for GM8 et G11 mountings:
The goal of this new worm housing is to allow ultimate tracking accuracy, by using the full potential of our very high performance worms.
This new housing provides perfect, well aligned coupling of the worm / bearings assembly with the worm wheel, and thus allowing:
- extremely smooth and nice tracking, with nearly no ripple or sudden variations in the error curve.
- minimal periodic error.
- easy installing and adjustment for the user if needed.
A technical note was available for visitors, that you can find at this link.
Depending on the mount you use and user's choice, the kit is available in different configurations:
1. Housing and " NS " worm and bearings for GM8 et G11 mountings:
The goal of this new worm housing is to allow ultimate tracking accuracy, by using the full potential of our very high performance worms.
This new housing provides perfect, well aligned coupling of the worm / bearings assembly with the worm wheel, and thus allowing:
- extremely smooth and nice tracking, with nearly no ripple or sudden variations in the error curve.
- minimal periodic error.
- easy installing and adjustment for the user if needed.
This new option for the Losmandy mountings can be installed at the time of the mount purchase, or later by the user itself or Optique et Vision if needed.
Each NS kit is checked and individually measured for accuracy before shipping.
The tracking warranty is + / - 5 arc seconds for the G11 mount ( total of 10" peak to peak ), and
+ / - 10 arc seconds for the GM8 mount ( total of 20 arc seconds peak to peak ). This of course without the use of periodic error correction system in use!
This kit may be factory installed by Optique et Vision at the time of mount purchase, or installed later at the user's demand.
But the big new is that this kit can be shipped so the user can install it by himself !
The kit contains:
- individual tracking accuracy test report.
- complete user's notice showing installing steps and adjustment to obtain the original tracking performance guaranteed.
- Measuring method to allow the user checking and confirming the original test measurement done by Optique et Vision.
The kit is available in three different choices :
- Complete kit G11NS for G11 mount, or factory installed at the time of the mount purchase by Optique et Vision including: assembling of the housing, installing of the spacer, measurement and delivery of indidual tracking test.
- Complete kit GM8NS for GM8 mount, or factory installed at the time of the mount purchase by Optique et Vision, including: assembling of the housing, measurement and delivery of individual tracking test.
- Kit KIT- NS VIS, assembled worm and housing sold without spacer.
This kit is available to be sold outside the CEE.
Check our pricelist for further information.
Each NS kit is checked and individually measured for accuracy before shipping.
The tracking warranty is + / - 5 arc seconds for the G11 mount ( total of 10" peak to peak ), and
+ / - 10 arc seconds for the GM8 mount ( total of 20 arc seconds peak to peak ). This of course without the use of periodic error correction system in use!
This kit may be factory installed by Optique et Vision at the time of mount purchase, or installed later at the user's demand.
But the big new is that this kit can be shipped so the user can install it by himself !
The kit contains:
- individual tracking accuracy test report.
- complete user's notice showing installing steps and adjustment to obtain the original tracking performance guaranteed.
- Measuring method to allow the user checking and confirming the original test measurement done by Optique et Vision.
The kit is available in three different choices :
- Complete kit G11NS for G11 mount, or factory installed at the time of the mount purchase by Optique et Vision including: assembling of the housing, installing of the spacer, measurement and delivery of indidual tracking test.
- Complete kit GM8NS for GM8 mount, or factory installed at the time of the mount purchase by Optique et Vision, including: assembling of the housing, measurement and delivery of individual tracking test.
- Kit KIT- NS VIS, assembled worm and housing sold without spacer.
This kit is available to be sold outside the CEE.
Check our pricelist for further information.
2. The " NS" spacer for the G11 mount:
This accessory allows the user to get a few additionnal hours of tracking before having to flip the mount at the meridian. It allows the user to continue to track and image well after the meridian, with the scope under the mount, with the stepper or Gemini models ( gemini system allows the user to delay the meridian flip). This perfectly machined piece nicely matches the finish of the G11 RA axis and does not change the orthogonality of the axis, and reduces interference of the scope with the mount (depending on the size and length of the OTA).
This accessory allows the user to get a few additionnal hours of tracking before having to flip the mount at the meridian. It allows the user to continue to track and image well after the meridian, with the scope under the mount, with the stepper or Gemini models ( gemini system allows the user to delay the meridian flip). This perfectly machined piece nicely matches the finish of the G11 RA axis and does not change the orthogonality of the axis, and reduces interference of the scope with the mount (depending on the size and length of the OTA).
The standard Losmandy worm
The Ovision worm
The spacer on the Losmandy G11 mount
The interest for the user is obvious: further improving the performance of the equipment, allowing to explore new imaging ways, like narrowband filtered imaging, where long autoguiding exposure times are required to get a suitable guidestar. Users of shorter focal lengths, like wide field imaging with telephoto lenses, will have the opportunity to do unguided shots ( but even this application still requires good polar alignment and reasonable exposure times !).
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