Bresser Nebula 5 EQ/AZ WiFi GOTO Mount

The new BRESSER Nebula 5 EQ/AZ Wifi-Network Mount is a precise and quiet telescope mount – ideal for astrophotography. The controller box offers numerous central connectivity options for various accessories such as cameras, filter wheels, and motor focusers via USB (2.0/3.0), simplifying the setup of a professional astrophotography machine.

BRESSER has relied on innovation coupled with quality Made in Italy for this top-notch product. The manufacturer's long experience in mount construction guarantees a high-end device with first-class functionality and utmost reliability. Additionally, the in-house development team in Italy ensures quick response times in technical support and the adaptation of new device drivers. Truly, "Professionals at work!"

The mount is controlled via pre-installed web-app software, accessible via WIFI and Ethernet cable connection. The philosophy behind the Nebula GoTo system is to provide the user with a control system independent of a standard PC, which can be remotely controlled via a smart device such as a mobile phone or tablet. However, this does not exclude the traditional use of computers of all types and brands, which can be connected to the system either wired or wirelessly.

The BRESSER Nebula GoTo System Controller is a Raspberry Pi 4 microcomputer, which allows complete control of the setup (mount, camera, etc...) without the need for any other external device. The BRESSER Nebula GoTo system comes equipped with all Linux-based applications required for performing all astrophotographic functions.
The existing INDI environment allows for the control of almost all devices (cameras, filter wheels, rotators, etc., including observatory domes) needed for local or remote astrophotography sessions.

The system also offers high flexibility for users who prefer to use traditional computer client applications such as Cart du Ciel (Star Chart), TheSkyX, SkySafari, Stellarium, and other planetarium programs as well as SGP, Nina, CCD Ciel, and other astrophotography tools. This complete compatibility is ensured through the adoption of the Alpaca communication protocol, which allows for the use of traditional ASCOM platform drivers for native INDI devices.

State-of-the-art mount construction
The BRESSER Nebula mounts are CNC-manufactured from stainless steel and aluminium. The sleek and functional design is courtesy of a renowned Italian mount manufacturer, who has licensed the design and now manufactures these fine BRESSER products 100%. So, look forward to a stable yet easily portable mount, which despite its light weight of only 13 kg (incl. tripod), allows for a high load capacity of up to 20 kg.

Visual Observation
For visual observation and direct use, control the mount with the hand control box included in the package. Alternatively, connect the Nebula 5 via WLAN directly to your smartphone or tablet and use the virtual hand control box. Of course, all adjustment parameters can also be set via the web application. The user interface is deliberately simple and clear to ensure intuitive operation.

Astrophotography
Here, the Nebula mount shows its full strength. Whether mobile or stationary, the capability for remote operation is crucial. Connect your laptop or PC either via WLAN or with an Ethernet cable (recommended for faster data transmission) directly to the Raspberry-Pi control unit of the mount. Then use the pre-installed Kstars/EKOS software to control the mount and all external devices such as cameras, motor focus, filter wheel, etc. Alternatively, you can also directly control the unit with your own software. Applications such as Cart du Ciel (Star Chart), TheSkyX, SkySafari, Stellarium, and other planetarium programs as well as SGP, Nina, CCD Ciel, and other astrophotography tools can be used without any issues.

2-in-1 Mount with EQ and AZ Mode
If required, the Nebula can be switched from the equatorial mode to the azimuthal mode. This is particularly advantageous for observing nature or tracking satellites. Thus, the mount can be used for various applications and is not limited to astronomy.

Attachment of up to two optics
Would you like to adapt multiple optics? No problem. Simply use the option to replace the counterweight bar with another telescope. Use the second optic as a counterweight to the main telescope. Set the Nebula 5 to azimuthal mode, remove the counterweight bar, and screw a suitable second telescope clamp directly onto the mount.

FEATURES

Precise and quiet telescope mount – ideal for astrophotography
Extensive connectivity options for various accessories via USB
Integrated web app software enables central control of all components
Integrated Raspberry Pi with USB-3 ports and Ethernet port
Compatible with client applications such as Cart du Ciel (Star Chart), TheSkyX, SkySafari, Stellarium
Compatible with SGP, Nina, CCD Ciel, and other astrophotography tools
Virtual hand control box and settings menu for smartphones and tablets
PC control – ASCOM and INDI compatible
USB ports for cameras, motors, filter wheels, etc.
Conversion from parallactic to azimuthal mode possible
Small hand box for basic functions included
High load capacity and yet lightweight
Mount CNC-manufactured from stainless steel and aluminium
Tooth belt drive for precise and quiet tracking
Load capacity: 15 kg in EQ mode and 20 kg in AZ mode
Dual prism clamping for Vixen GP and Losmandy
Weight of the mount: 8 kg
Weight of the tripod: 5 kg

SCOPE OF DELIVERY

Nebula 5 EQ/AZ Mount
Field tripod
Central control unit with Raspberry Pi
Counterweight: 6 kg (1 piece)
Basic hand box
Connection cables
Power supply 230V/12V/3A

Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or sales@rothervalleyoptics.co.uk.

The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.

The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.

Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 1pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

Please note International customers will need to contact us for a shipping price prior to ordering via the website. We don't ship all items internationally. It is at our discretion what we ship outside of the UK. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.

If you have any questions regarding stock levels or delivery, please get in touch.

Zygo Interferometer Testing For ED Refractor Telescopes!

We are extremely pleased to announce our Zygo Interferometer is now installed and ready for use! Our experienced staff can test refractor lenses up to 120mm aperture and provide a comprehensive 2 page report showing the optical quality and Strehl ratio, plus much more information. We are using the very latest Zygo MX software to provide a more detailed report compared to other standard reports.

The interferometer is essentially a measuring instrument. Within the interferometer is a calibrated laser that is pointed through the optical test surface, then onto a high quality reference sphere, then back through the test subject then to an internal camera which gives us the measurement on the screen. From this, we can adjust the position of the test optic and the reference sphere to obtain a perfectly calibrated system. The more central the laser to the test optic and then on return, the better and more accurate reading and measurement we can take. This takes a lot of adjustment to get the best results from the optical surface. Once the measurement has been taken, we are provided with a series of results that show the optical quality of the surface plus other information. Continue reading for an explanation of the individual values and you can also see a test report that was done on one of our RVO Horizon 60 OTAs. 

We are offering certain telescopes with a Zygo test at an extra cost. Mainly ED doublets and triplets. All available telescopes with a Zygo test report are listed here. Just select Zygo Test Report from the drop down box at the top of the listing and we will test the optics in house and provide a full 2 page report with your scope. This will show you the optical quality of your telescope optics. We can also offer this service on your refractor telescope. Please get in touch for more details about this. 

At Rother Valley Optics, one thing we pride ourselves on is customer service and quality of our equipment. When we test your telescope, we will ensure that it is of the highest quality otherwise, we will reject the scope under our strict quality control and test another model for your peace of mind. One of the main values to look at when testing a refractor is the Strehl ratio. The higher this number, the higher quality lens you have. At Rother Valley Optics, we will guarantee the highest possible Strehl ratio for your telescope.  We will aim to provide 0.95 Strehl or higher on Takahashi, RVO Horizon, William Optics and many more! Generally, the higher the Strehl ratio, the lower the Astigmatism and Coma meaning a better image quality from your instrument. 

Other measurements such as the PV and RMS are important too. With these measurements, the lower the number the better as it shows less curvature on the lens. The flatter an optical lens, the better it will perform. The PV rating (Peak To Valley) is a measurement from the highest point (Peak) to the lowest point (Valley). From this we get the RMS (Root, Mean, Square). This is a similar figure to the PV and measured exactly the same way. The RMS is basically an average height difference from the PV so again, the lower the better. As you can see form the example below, we measured an RMS of just 0.027 wave which is a very good value.

We also measure the Power with our systems which is essentially the error from the reference sphere to the test optic. The reference sphere we use on our system is a very high quality sphere so the closer to zero the Power, the less error between the 2 elements thus ensuring a higher quality optical surface. 

You will also see some more values such as Astigmatism and Coma. Again, these are measured by the interferometer when we take measurements of the optical surface after adjustment. These are values which ideally would be at 0 but as our test optics are all curved lenses, there will always be astigmatism and coma present. The lower the number, the less of these aberations you will effectively see but with most refractors, you can buy field flatteners which will compensate for the coma anyway. The astigmatisms value is explaining the error between the symmetrical curvature of the lens. Basically, no lens will be perfectly symmetrical, the lower the astigmatism, the more symmetrical the lens surface is. 

Once the Zygo test report has been completed, the optical alignment is thoroughly tested and tuned to ensure they are spot on before they leave us. 

All available telescopes are on the website at the link below and ones we've tested already that are available straight away are also listed.

https://www.rothervalleyoptics.co.uk/zygo-tested-refractors.html

Here is an example of the test what we provide. This was a test on one of our Horizon 60 ED OTA's.

For any questions about this amazing new service, please either call 01909774369 or email sales@rothervalleyoptics.co.uk.

Are you interested in this product but would like to speak to someone with some more information? Simply fill in the form below and we will get back to you as soon as we can!

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