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Ioptron Hem27 Hybrid Strain Wave Drive Mount

Ioptron Hem27 Hybrid Strain Wave Drive Mount
  • Product Code: eq108182
  • Availability: In Stock

$5,514.00 $7,443.90

iOptron HEM27 Hybrid Strain Wave Drive Mountis a revolutionary hybrid strain wave drive mount. This lightweight, high payload tiny titan will deliver an astronomy experience like never before. Imagine a mount head weighing in at 8.2 pounds with a payload capability of 29.7 pounds, without needing a cumbersome counterweight or shaft.

Utilizing state-of-the-art strain wave drive technology for the RA movement in tandem with backlash-free DEC worm/belt drive design, the HEM27 delivers unparalleled weight to payload efficiency. Its black anodized all metal CNC machined body is not only appealing to the eye, it's a rugged platform that will perform at the highest level for many years to come. Unique features such as an electronic friction brake and power down memory allow the mount to safely stop and resume a GoTo slew or continue tracking even after an abrupt power loss (no need to realign and start from the beginning). A HEM27 mount can be controlled by a computer, either via ASCOM/Commander for a Windows PC or a third-party INDI driver for a macOS software; a SmartPhone/Tablet via iOptron Commander Lite or an app like SkySafari; or a Raspberry Pi device via INDI driver.

Black Anodized Metal CNC Machined Body    Electronic Friction Brake    Power Down Memory    Strain Wave Drive Technology    Go2Nova 8409 Hand Controller

Key Specs
Mount TypeGerman Equatorial
GoTo CapabilityYes
Payload Capacity29.74 lb / 13.49 kg
MotorYes
Power SourceBattery (Built-In)
Battery1x Rechargeable Lithium-Ion
MountingTo Tripod/Base: Dual Losmandy-/Vixen-Type Saddle
GPSNo
WirelessWi-Fi
*Built-In
Weight8.15 lb / 3.7 kg
Mount
Mount TypeGerman Equatorial
GoTo CapabilityYes
Payload Capacity29.74 lb / 13.49 kg
MotorYes
Tracking RatesSidereal
Altitude Adjustment-5 to 5°
Latitude Adjustment15 to 65°
Declination AdjustmentYes
Right Ascension AdjustmentYes
Counterweight10.0 lb / 4.5 kg
Polar Axis ScopeNo
General
Power SourceBattery (Built-In)
Battery1x Rechargeable Lithium-Ion
Input Power100 to 240 VAC, 50 / 60 Hz
Inputs / OutputsRS-232/RS-422, Mini-USB
MountingTo Tripod/Base: Dual Losmandy-/Vixen-Type Saddle
GPSNo
WirelessWi-Fi
*Built-In
MaterialsAluminum
Operating Conditions-4 to 104°F / -20 to 40°C  (Recommended)
Dimensions11.08 x 7.6 x 5.21" / 281.49 x 193.2 x 132.44 mm
Weight8.15 lb / 3.7 kg

Advanced strain wave drive technology

USB port for firmware upgrade and computer control

Built-in Wi-Fi (via hand controller)

Integrated ST-4 autoguiding port

Power down position and location memory

Built in zero position search and locator

Dual saddle (Vixen and Losmandy-D styles)

Cable management system, no hanging exterior cables to moving parts

Go2Nova hand controller with ~212,000 object database

Permanent periodic error correction (PPEC)

Unique friction brake to safely stop movement during a planned or unplanned power interruption

360 second gear period

CNC machined

Payload capacity of 29.7 pounds with the mount weight of 8.2 pounds

Related Questions and Answers

Q: 1. Do you need to be able to see Do Do you need to see Polaris for this to work? If so, is there a work around of some sort?

A: This is not a Go-To Device, its designed for polar alignment for more accurate tracking.

Q: 2. My tripod does not have a leveling base. Could I mount this tracker on top of my ball head to get it level or does this tracker need to mount directly to the tripod and therefore requires adjusting leg length to be level?

A: The Model has a 3/8"-16 socket, so you would need an Adapter to reverse it to a 1/4"-20. I don't recommend doing this, and the weight could be top heavy. I would recommend just mounting this onto the Legs only.

Q: 3. Is the clutch supposed to be flush with the body once tightened? I just received mine and there is an inconsistent gap that is approximately 2 mm wide (1/16 of an inch) at its widest. I am concerned this will allow debris to contaminate the SkyGuider.

A: ask MFR

Q: 4. Does this replace the discontinued iOptron 8221 ACC for the iOptron AZ Pro Mount? Trying to find a tripod for my AZ Pro ... bought a Meade 2" field tripod but the central attachment bolt was too large in diameter ...so real question is does the central bolt (shaft) on this tripod fit the AZ Pro mount?

A: Yes 8923ACC is for AZ mount Pro. It replaces 8121ACC. There is no 8221ACC.

Q: 5. Will this tracker work in the Southern Hemisphere?

A: I have not taken is south of the equator yet, but yes, it has a setting for the southern hemisphere and the polar alignment scope has the ring for Sigma Octanis to do a polar alignment in the southern hemisphere.

Q: 6. Is it possible to use a USB charging block with this product? I'm thinking of backpacking/road trips with a 10,000 MaH charging block.

A: Yes, you would be able to use a USB charging block to charge this.

Q: 7. Is the battery replaceable?

A: Yes it is user replaceable. Here is a link to the replacement battery: https://bhpho.to/33qO9Rg

Q: 8. Can I rotate the shaft and have adjustments when the guider is running?

A: The manual adjustments can only be made prior to running the guider.

Q: 9. Just to be clear, this comes with the mount head (tracker), the altazimuth base, dec bracket, and counterweight?

A: Yes. Just to confirm, according to the inventory of items in the box, it comes with: iOptron SkyGuider Pro EQ Camera Mount Alt-Az Base Padded Carrying Bag Counterweight Shaft 3-pound Counterweight Vixen-Style Dovetail Saddle Declination Mounting Bracket Micro-USB Battery Charging Cable Limited 1-Year Warranty Limited 90-Day Warranty on Battery

Q: 10. Just getting started in astrophotography, will this ubit work with my Canon 80D and a 150-600 lens and teleconverter? Also, what else do I need to take pictures with this unit? Thanks

A: There is nothing additional you may need . I would advise checking out som of the YouTube videos on the product.

29/09/2024

[Yes] A couple years ago I decided I wanted to try my hand at Milkyway photography. For my initial foray into this area of photography I just used my Canon 6D on a tripod with a 14mm f2.8 lens and used the 600 rule to determine shutter speed. I found to get decent images I had to really crank up the ISO, which isn't a huge problem if you use stacking software to stack multiple images to reduce noise.

However, earlier this year (2019) someone on a forum a frequent told me about star trackers and so I started researching. I ended up buying this unit - the iOpton SkyGuider and wow, what a great piece of gear! It is well built and solid. I watched several video tutorials on how to effetively use the SGP. For my first attempt ever using this star tracker, I drove a couple hours from my home to a remote location about 30 miles south of Mountainaire, NM. I'll attach my very first attempt using the SGP. This image was taken in May 2019 around 1:30AM out on a remote diret road. The moon was just starting to rise and I was afraid it would see us the image, but I kinda like how it turned out.

5
16/09/2024

[-5 to 5°] Fairly simple setup enhanced by videos on YouTube. Got some star shots on my first attempt.

5
14/09/2024

[-5 to 5°] Now I can get even longer exposures. Works Great. Had to make some changes to allow for heavier lens that the 3lb counterweight was not enough for. Found video that suggests changing the cw bar to opposite side.

5
14/09/2024

[Sidereal] I recently purchased the SkyGuider Pro and had occasion to use it a few nights ago. I was able to do an accurate polar alignment and was rewarded with 4 minute exposures with pinpoint sharp stars! I had a Nikon D850 with the 14-24mm wide angle. The camera, lens and ball head weight over 5 pounds. I actually need a second counter weight to get a good balance. Even with it being slightly out of balance, it performed perfectly.
The only downside is the base. If you are shooting north of 36 degrees, you will want to get the Sky-Watcher Star Adventurer Equatorial Wedge Base, $65 on B&H. It will go all the way to 90 degrees and is much easier to use.

5
03/09/2024

[Yes] This is my first startracker mount, so I don't have a lot to compare it to, but it works very well. I took it out that night, got it aligned, and I was able to get 2 minute exposures with only a little star trailing. It was my first time, so I'm obviously not gonna get a great polar alignment. But it the tracker worked well.


Side note, But I dropped it about 5 feet onto the floor, and everything still worked perfectly. So, I can at least say it's build quality is quite good!

5
28/08/2024

[Sidereal] This is a dream mount! After lugging heavy mounts such as the Celestron CGEM with heavy metal tripods and hefty counterweights for many years, this lightweight mount with its auto-aligning feature is a welcome change for aging hobby astrophotographers like me. The mount is light and compact and is controlled through its hand controller eliminating the risk of broken WiFi connections or privacy issues as with AM5 mount. Best way to understand this mount is to use it during daytime for viewing the Sun followed by night time use. It is simply a joy to use!

5
25/08/2024

[-5 to 5°] The first time I used this, it was just to learn how to align it and not really to capture a great image. I didn't have a lot of time so I didn't do any stacking. this image is one, single 9 minute long exposure. the focus is a little off, but the stars are perfect. there is not a single streak to be found. I did not purchase the iPolar electronic polarscope and I am glad that I didn't. I used an app on my phone instead and just aligned according to my phone's location of Polaris. I was really pleased with the image.

5
28/07/2024

[15 to 65°] The SKYGUIDER PRO EQ CAMERA MOUNT was fairly easy to
align and operate utilizing online video tutorials which are plentiful for this particular device.  With a decent alignment I was able to get good tracking for 4 minutes at 35 mm and 30 seconds at 400 mm on a DSLR camera.  Utilizing the guide port available on this model I understand that those times can be at least 5 times longer.  The picture of the Orion Nebula was taken at 400mm on a DSLR with 30 sec exposures and I stacked 60 exposures.

5
19/07/2024

[Aluminum] Received the item quickly from B&H, and started playing around after reading and watching quite a lot of material about the SkyGuider Pro and astrophotography as well.
Careful polar alignment and you're all set! My first images came out great, using 5DmkII, Samyang 14mm, all mounted on the Skyguider from Ioptron (with ball head, also from Ioptron).
Looking foreward to purchasing a suitable apo telescope for extending the range of possible targets.
I did my research on this item, and it did not fail for now. Sure I'll be enjoying it for years ahead as a portable astro set-up.

5
05/07/2024

[15 to 65°] The SkyGuider arrived in good condition, well packed, and works well. It is very light?

5

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