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Posts Tagged 'ioptron'
Mounts with strain wave gear from ZWO, iOptron and PegasusAstro
April 19 2024, Stefan Taube
Innovative manufacturers have been offering astronomical mounts with a special drive design for a few years now. You can find these in the shop under the Harmonic / Strainwave link.
These mounts are equipped with a so-called strain wave gear. It is also known under the protected brand name Harmonic Drive.
The advantages are:
- High load capacity with low dead weight
- High torsional rigidity: no counterweights required
- Relatively inexpensive, as industry standard
- No swivelling error (“backlash”)
- Very high reduction ratio
- Compact dimensions
- Maintenance-free and backlash-free in the long term
The strain wave gear is used for the axes of industrial robots, among other things. It is therefore a standard and does not need to be specially developed and built for astronomical mounts.
Although the periodic gearbox error is also high for strain wave gears, the error typical of worm shafts, which occurs when the direction of rotation changes (“backlash”), is eliminated. This means that the strain wave gear reacts immediately to the control impulses, so that the periodic error can be compensated very well by autoguiding.
For large mounts, such as the Skywatcher EQ-8, the mounts from 10Micron or the CGX-L from Celestron, a worm shaft is still the first choice, because optics with a long focal length require a very low periodic gear error and a counterweight cannot be dispensed with for heavy optics, even with a strain wave gear. In addition, the advantages of strain wave gears in terms of compactness, weight and price are lost as soon as a mount with a high load capacity is required.
There is therefore an ideal range of load capacity in which mounts with a strain wave gear can play to their strengths. The requirements for mobile astrophotography with small to medium-sized optics fall within this range. The harmonic mounts from brands like iOptron, PegasusAstro, RainbowAstro and ZWO are designed precisely for these requirements.
You can find all mounts with strain wave gear under the Harmonic / Strainwave link in the shop.
Typical strain wave gear to industry standard
HEM27 – the new iOptron mounts featuring top-class technology!
June 3 2022, Jan Ströher
The recent trend towards hybrid Harmonic Drive mounts is not without reason: they are compact, light, can be used on camera tripods and yet have a high load-carrying capacity, which is far superior to the more basic camera mount. In addition, they are equipped with all the technical features of a large equatorial mount. Due to their design and mechanical construction, they also do not require any counterweight(s) – a further advantage for transportation. This is why the term “hybrid” is used: you have all the advantages of a camera mount, such as quick assembly, easy transportation, compactness and precise tracking of the night sky. All these features are then combined with the advantages of larger equatorial mounts, such as GoTo functions, a hand controller with object catalogue, permanent drive gear error correction (PEC), various tracking modes and a high payload capacity in relation to its own weight – all without a counterweight bar with corresponding counterweight. These mounts’ mechanics provide the perfect balance for your telescope.
HEM27 on camera tripod
iOptron is continuing this trend and introduces yet more innovation with the new HEM27 series. The series consists of three variants: a classic HEM27, one with iPolar and an EC version.
iOptron thereby offers a selection of hybrid mounts to suit all requirements. All HEM27 mounts have a low dead weight of just under 4kg, but a load-carrying capacity of up to 13.5kg! This means that they can also be used for telescopes that would normally only be found on mounts in the mid-range weight class. So you can use a telescope weighing 5–6kg and still have sufficient capacity for astrophotography equipment. This means that you have the choice of a much broader range of telescopes with the HEM27 compared to regular camera mounts, which usually have a load limit of 3–5kg.
A carrying case is included with the HEM series
iOptron has equipped this series with the well-established Go2Nova® software and a database of 212,000 objects – just like the larger CEM and GEM series of iOptron mounts. The internal cable management provides security and order, and a dual saddle plate allows the use of Vixen/GP and Losmandy prism rails. An ST-4 autoguiding port is available as well as built-in WLAN, a bubble level and an emergency brake system which stops the mount if the power supply is interrupted abruptly. When you continue, the location memory means that the mount does not have to be re-aligned and re-programmed for your location. As you would expect from iOptron: all HEM27 models feature extremely quiet and smooth stepper motors.
The HEM series will be available in summer. You can find first details here at Astroshop!
CEM70 with iGuider – the latest innovation from iOptron
September 23 2020, Jan Ströher
The American company iOptron, which has already built a good reputation for itself in recent years with innovative, efficient and quiet mounts, launched a worthy successor to the popular CEM60 in April this year: the CEM70.
The new CEM70 comes with the characteristic appearance of the proven CEM mounts. CEM stands for centre-balanced equatorial mount. This design allows a particularly–favourable ratio of load capacity to actual mount weight. In the case of the CEM70, the ratio is 2.3. This means that the mount carries more than twice its own weight! So, the CEM70 is still suitable for mobile applications, but is also a very good mount for observatories.
The stepper motors and the toothed belt drive allow high pointing accuracy in GoTo operation, but most importantly, a very precise tracking accuracy with a periodic error of less than +/- 3.5 arc seconds. All this with the usual welcome quiet operation of all iOptron mounts.
Just like the CEM25P or the CEM60, the new model is perfectly suited for astrophotography. The highlight is a version which comes with iGuider, an integrated autoguider! In addition, both versions of the CEM70 have an ST4 interface, built-in GPS, a sturdy transport case, quiet stepper motors, the proven Go2Nova hand controller, as well as a dual mount saddle for Vixen and Losmandy dovetail plates.
With a maximum load capacity of 31kg, the CEM70 offers great flexibility for different telescopes and the appropriate photographic equipment. All in all, the new CEM70 is an even more portable mount with a wellthought-out design, useful functions and additional features, which also carries a higher instrument load even more safely, tracks quietly and precisely, and thus will never let you down during astrophotography! Both model versions can be found from us here at Astroshop.
The SkyGuider Pro camera mount from iOptron is now available with an electronic polar finder
January 8 2020, Stefan Taube
The SkyGuider Pro is a very light mount on which you can set up a camera with interchangeable lenses or a small telescope. This approach allows longer exposure times and so you can create fascinating wide-angle shots of the night sky.
iOptron Mount SkyGuider Pro iPolar Set
The SkyGuider Pro is now also available as a set together with the iPolar electronic polar finder, which has been built into the mount. With this accessory, you can easily and very precisely polar-align your mount.
The electronic finder has a built-in camera. This shows the position of the northern celestial pole and the location that the polar axis of the mount is pointing at, on your laptop. Simply bring the two points together by turning the adjustment screws for the azimuth and altitude axes of the mount – and you’re done!
SkyGuider Pro with iPolar
The location of the celestial north pole differs somewhat from the location of the Pole Star. The electronics calculate the exact position using the date and time. Thanks to the sensitivity of the camera and the large field of view, this so-called polar alignment is successful even when the mount has been only roughly positioned. This also works in the southern hemisphere and even takes into account atmospheric refraction at low latitudes!
If want to do without iPolar, you can of course still purchase the SkyGuider Pro mount without the electronic polar finder here.
iOptron mounts: A new addition to the CEM family
April 4 2019, Stefan Taube
CEM series mounts from iOptron are already widely used in the US and are becoming increasingly well known in Europe too. The CEM25P mount for portable astrophotography with Newtonian telescopes of up to 6 inches aperture and the CEM60 mount for use in observatories have proved particularly popular.
With their new CEM40 and CEM40-EC with encoders, iOptron now provides a middle range mount capable of carrying loads of up to 18 kilograms. The CEM40 is hence ideally suited for astrophotography with telescopes of up to 8 inches (200 millimetres) in aperture.
The CEM40 is the latest addition to iOptron’s CEM series
The abbreviation CEM stands for centre-balance equatorial mount, i.e. for equatorial mounts which are supported at their centre of gravity. This design ensures an excellent relation between weight and carrying capacity. The CEM40 weighs only 7 kilograms and yet can carry OTAs up to 2.5 times heavier. The amazing carrying capacity of CEM mounts has been constantly reaffirmed by our customers – especially regarding the CEM25P.
The CEM40 comes equipped with an electronic pole finder, known as ‘iPolar’. A laptop is required to operate this however, so the CEM40 is particularly suitable for astrophotographers who already use a laptop for their camera. iPolar and built-in GPS provide easy and accurate alignment and GoTo computer control initialization.
The encoders installed in the CEM40-EC version ensure very high GoTo accuracy and allow worm gear permanent periodic error correction – a problem that all mounts suffer from. The CEM40-EC does away with the need for guiding with your astrophotography.
The CEM family now covers a wide range of load carrying capacities, offering a suitable model for every budget!
New in January: Taurus-Dobsons, APOs by Vixen, solar telescopes by DayStar, Atik Horizon cameras and a high-end mount by iOptron
January 12 2018, Stefan Taube
This year, too, we would like to present a small selection of items to you every month that we have recently included in the range:
Telescopes by Taurus have recently been added to our shop. The Dobson T300 with a 12-inch aperture is the first model that we would like to present to you. Other models will follow in coming days. The Dobson T300 telescope has a wire-mesh tube, which means it’s easy to transport and can be set up without tools in just a few minutes. The entire system weighs just 15.9 kg, and the heaviest part weighs only 9.6 kg.
Unlike what you can see in the picture, the telescope does not come with a finder or an eyepiece. It does, however, come with a scattered light protector. It also comes with a high-quality 2” Crayford eyepiece holder with support.
The Dobson telescopes by Taurus are developed and made in Poland. We are pleased to be able to offer these telescopes to you now!
For those who prefer to take photographs, instead of exploring the night sky with their eyes alone, should make use of an apochromatic lens. The Japanese manufacture, Vixen, is offering three new models that have different lens diameters: SD81S, SD103S and SD115S.
The recently designed lens element with FPL-53 glass reduces chromatic aberrations to such an extent that they are barely detectable, ensuring an extremely clear and sharp picture! These three APOs are ideal for photography with DSLR cameras with full-format sensors.
The American company, DayStar, specialises in instruments for observing the sun. With the SolarScout 60, DayStar is adding another solar telescope to its SolarScout series. The telescope has an integrated QUARK H-Alpha filter.
When you buy this telescope, you are getting a finely tuned system that comprises optics, etalon filter and helical focusing with which you can enjoy observing and photographing the sun in H-Alpha light without risk!
Thanks to the light carbon tube, you can place SolarScout telescopes on a small mount. The integrated solar finder will help you to effortlessly and safely align the optics with the sun.
This is the first camera by Atik with a CMOS sensor – the future of sensor technology. In this case, it is a 16-megapixel Panasonic MN34230. The small pixel size of 3.8 µm means high resolution and makes the camera interesting for short focal length apochromatic lenses and photo lenses. The integrated cooling system brings the camera down to 40° C below the ambient temperature. With the quiet electronics and the USB 3.0 port, the Atik Horizon is ideal for shots of weak nebulae with long exposure times.
Like the Atik Infinity, the Atik Horizon is also ideal for live stacking. This significant trend ensures more fun doing astrophotography and publicity work at observatories.
You will, of course, receive both an Atik Horizon and a colour camera. This colour variant saves you from having to use colour filters.
We have had good experience with the mounts by iOptron in recent years. They are long-established in the USA, and are now becoming more popular across the pond. iOptron is now putting a mount on the market that features a load capacity of over 50 kg for observatories: The CEM120 GoTo mount.
The design is reminiscent of the tried and tested CEM60 GoTo that has a load-bearing capacity of half that. The polar wedge of both mounts is supported in the centre of gravity, thereby achieving a high level of stability with low weight.
For those who are planning a garden observatory or a new acquisition for a club observatory, the CEM120 GoTo should be seriously considered. Speak to us, and we’ll be happy to advise you!
iOptron: A variety of astronomical mounts
September 15 2017, Stefan Taube
Mounts from iOptron are becoming more and more popular, not only in the USA, but also in Europe. Reasons for this also include product diversity, mechanical quality and excellent equipment. Let us introduce a selection of mounts from iOptron:
The iEQ45 Pro GoTo is of particular interest for astro-photographers.
The mount can support twenty kilogrammes and is thus in the size range that is preferred by most ambitious amateur astronomers. It can also accommodate ample sized optics, but is still easy to transport. The tripod with its 50 millimetre legs ensures stability.
While stargazing, the iEQ45 Pro is quickly ready for use. Its readiness is assured by the integrated GPS, the electronically supported alignment of the mount with the polar star and the various initialisation methods for the GoTo system. The GoTo system will assist you in finding your way through the sky. The iEQ45 Pro is equipped with an eight-line remote to make sure that you won’t lose track.
If you are a novice and would like to start slightly smaller, then the CEM25P GoTo would be the right choice. This mount is available for a considerably lower price, but still is able to carry 12 kilogrammes. A 6-inch Newton telescope is a good match for this mount.
Unbelievably quiet and load-bearing AZ Pro GoTo
The only time you need an equatorial mount is when you want to take photos of faint nebulae and galaxies. In all other cases, the azimuthal mount AZ Pro GoTo is a highly interesting alternative. The AZ Pro is simply remarkable: It works almost silently, when carrying even heavy optics of up to 15 kilogrammes!
This mount does this with all imaginable comfort: Large display, GPS, automatic alignment and installed power pack. You don’t need a Powertank! Without an external power supply and due to its dice-shape design, the AZ Pro is very compact – more mobility is hardly possible!
With an azimuthal mount of this kind, you can, in addition to visual observations, also take photos of the Moon and planets, or use the Atik Infinity camera for video astronomy.
The smallest mount from iOptron is the SkyTracker Pro
Over many years, the photo mount SkyTracker Pro has found lots of friends. No further explanation required.
Photo mounts like this one enable astro-photography directly with a DSLR, i.e. without any telescope.
This is simple, possible anywhere and very well suited for taking photos of large constellations, allowing you to take photos of the Milky Way or just atmospheric landscape shots with the night sky.
The observatory mount from iOpton: CEM60 GoTo
With a load bearing capacity of 27 kilogrammes, the CEM60 GoTo is not the biggest mount at Astroshop. However, it is a very interesting solution for stationary operation on a concrete column, because it meets the requirements of many small garden observatories and is available for quite a reasonable price.
Special ports below the dual mounting saddle enable the operation of accessories for astro-photography applications. In case you do not want to constantly operate the mount stationary, the scope of delivery also includes a transport case. For mobile use, we can also supply you with the matching iOptron tripod or even an especially high-quality wooden tripod from Berlebach.
This is a selection of particularly interesting mounts from iOptron. You will find the whole product range here.
SkyGuider Pro: the large camera mount from iOptron
July 17 2017, Stefan Taube
The SkyTracker Pro from iOptron is one of the most popular camera mounts. This handy unit tracks photographic equipment of up to three kilograms in weight to follow the rotation of the sky. This allows you to take panorama shots of the night sky with long exposure times.
The new SkyGuider Pro from iOptron can even carry up to five kilograms of photographic equipment. This is easily sufficient for a small telescope, such as the Photography Scope with camera. The scope of delivery already includes a mounting plate for small telescopes.
The scope of delivery also includes a counterweight for balancing the photographic equipment. This provides stability and takes pressure off the rotation axis.
However, you can also install a second camera with up to three kilograms in weight instead of the counterweight. This way you can take photos of the same sky area, but with two different focal lengths.
Alternatively, you can use the second camera as an autoguider.
On the product page for the iOptron Mount SkyGuider Pro you will find an illustration showing the vast variety of applications for this camera mount.
In addition to the counterweight, the scope of delivery of the SkyGuider Pro includes almost everything you need. The only thing missing is a tripod and a ball head might also make sense. Both these articles can be found under the tab “Recommended Accessories” on the product page.
The SkyGuider Pro comes with a power pack which can simply be recharged via USB. There is hardly any mount for sky photography available for use with photographic equipment of up to five kilograms in weight, that is more light-weight or more compact. As with other mounts from iOptron, the SkyGuider Pro also offers a satisfying, solid mechanical design. We are convinced that this new camera mount will meet your approval!
New: SkyTracker Pro from iOptron
September 26 2016, Stefan Taube
You do not need very much to be able to take long exposure photos of the night sky. Even with a system camera or a DSLR with interchangeable lenses you can take photos of large regions of the sky, such as constellations, special constellations of the Moon and planets or even the belt of the milky way.
All you need besides the camera is just a little piece of accessory to be mounted between tripod and camera. This accessory, referred to as camera mount, makes your camera rotate with the starry sky. This makes sure that stars will not appear as dashed lines after a longer exposure time. The SkyTracker from iOptron is the mount that has set standards. This narrow and light piece of accessory fits into any photo bag – ideal also for travelling!
With the Sky Tracker Pro, iOptron now launches a new version of this popular camera mount:
- You no longer need any batteries! The integrated powerpack can be simply charged via your computer or via a mobile power supply, sufficient for approx. 24 hours of operation. You can obviously also use a Powertank to supply the Sky Tracker Pro continuously with electric current via USB.
- The polar finder for aligning the equatorial wedge (Alt-Az base) with the North Star is illuminated with eight selectable brightness stages. A rough alignment is made through a peephole and a height scale on the wedge.
- The equatorial wedge is mechanically considerably more stable than the classic SkyTracker. It has a large height adjustment wheel with a non-slip clamping lever and adjustment screws. The wedge can be separated from the tracking unit. This way it may stay on the tripod and the SkyTracker Pro can be simply plugged on.
- You can choose from four speeds: stellar, solar, lunar and 0.5-times. Half the stellar speed is quite useful if you want to photograph landscape details in the foreground together with the stars.
Due to the reduced tracking speed, these elements remain sharp. By the way: You can also reverse the sense of rotation of the motor, so that the SkyTracker Pro also works in the Southern hemisphere. - With a weight of slightly more than one kilogram and dimensions of 12 cm x 12 cm x 10 cm, the SkyTracker Pro is quite compact, despite its high quality mechanics, and will surely fit into your travel luggage.
Besides the tripod, you also need a ball head in order to use the SkyTracker Pro in the most effective way. Since many photographers already have a ball head in their possession, it is not included in the scope of delivery of the SkyTracker Pro. Under the “Recommended Accessories” tab on the SkyTracker Pro product page you will find a highly suitable example.
By the way: At Astroshop.eu we also offer astro modified system cameras. These cameras are highly sensitive in the red range of the spectrum and enhance the image quality of cosmic nebulae.
The AZ Pro mount from iOptron: GoTo made easy!
July 11 2016, Stefan Taube
iOptron simply calls it “level and go”, and refers to the very simple routine for aligning the AZ Pro mount in the sky. With this latest innovation, viewing the sky with a computer controlled mount is almost as spontaneously possible as it is with a Dobsonian telescope: No need to exert yourself by going through an arduous procedure, until you can finally start observing!
iOptron Mount AZ Pro GoTo
Just place the AZ Pro mount down horizontally – the integrated spirit level helps you to do so – and switch it on. With the integrated GPS and the sensors, the mount will automatically recognize date, time, location and orientation. Just give the computer approximately two minutes, the mount will then move to a bright object in the sky. Then centre the object in your eyepiece. There is even no need to know the name of the object, a fact that is particularly convenient in twilight. It goes to show how quickly and simply the mount is to align to the sky! You can now choose your observation targets from a huge database, to be sought out by the mount.
With its compact form, the retractable counter weight bar and the stable aluminium housing the AZ Pro mount from iOptron is an ideal travel mount. With the integrated GPS, the “level and go” routine can be executed at any point around the globe. The mount comes with an installed lithium-ion powerpack, suitable for 10 hours running. No need to take another power supply with you, which reduces any additional cable chaos.
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Another positive aspect is the smooth and quiet running of the stepper motors. Your neighbours will be grateful!
The AZ Pro has admittedly been optimized for mobile use, but is still a high quality mount, able to carry large aperture telescopes for visual observation. For photographic purposes this mount can be used for moon and planet photography.
In the field of portable, azimuthal GoTo-mounts the AZ Pro from iOptron currently meets the highest standard.