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iOptron SkyGuider Pro EQ Camera Mount

BH #IO3550 • MFR #3550
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iOptron SkyGuider Pro EQ Camera Mount
Tripod Not Included
Key Features
  • Equatorial Camera Tracking System
  • 11-Pound Payload Capacity
  • Right Ascension Tracking Motor
  • Tracking Rates: Solar/Lunar/Celestial/Half-Celestial
Building on the success of their previous systems, the iOptron SkyGuider Pro EQ Camera Mount increases the precision and payload capacity while reducing the form factor to produce an imaging support system to track celestial bodies and capture images of the sun and moon, or for wide-field astrophotography star-scapes shooting techniques. This versatile tracking system can be configured in multiple ways including single or double-camera mounting, or even mounting smaller telescope optical tubes.
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iOptron SkyGuider Overview

Building on the success of their previous systems, the iOptron SkyGuider Pro EQ Camera Mount increases the precision and payload capacity while reducing the form factor to produce an imaging support system to track celestial bodies and capture images of the sun and moon, or for wide-field astrophotography star-scapes shooting techniques. This versatile tracking system can be configured in multiple ways including single or double-camera mounting, or even mounting smaller telescope optical tubes.

The system functions as an equatorial mount, with a Right Ascension (RA) tracking motor to compensate for the apparent movement of celestial objects across the sky. An integrated polar axis alignment scope aids in accurate set up to improve tracking accuracy for long-exposure photography. A Declination mounting bracket allows the use of the counterweight kit to balance heavier imaging rigs, and limit vibration and strain on the motor and gears — or for double-mounting cameras, or OTAs. The tracking head runs on a factory-installed rechargeable battery with a 20-hour runtime. iOptron offers the SkyGuider here with just the tracking head and alt-az base for users with a reliable support system. The tracking head can be mounted on a tripod by itself using a conventional 1/4"-20 photo ball-head, or the head/base can be mounted together on most astronomical, photo, video, or field tripod using the 3/8"-16 or 1/4"-20 mount on the bottom of the base.

Tracking Head
  • 11-pound max payload capacity when properly balanced
  • Tracking rates: Solar, Lunar, Celestial, and Half-celestial (for sky-scape photography)
  • 144x forward/reverse fast slew speed helps to find and frame shots
  • Integrated AutoAlign illuminated polar axis scope allows for precise alignment to improve tracking accuracy; 6° field of view for easier alignment; adjustable illumination intensity
  • Counterweight shaft and 3-pound weight are included to properly balance heavier cameras and lenses
  • Ports: ST-4 Autoguider; Shutter release; Micro-USB charging; Optional Go2Nova hand controller
  • Runs on one internal rechargeable LiPo battery; up to 20-hour runtime
    Mounting:
  • Mounts to alt-az base via Vixen-style dovetail
  • 1/4"-20 socket enables mounting to a photo, video, field tripod using an optional ball-head
    Motor and Gears:
  • Right Ascension DC servo provides smooth tracking with limited vibration, and optical encoder improves tracking accuracy
  • Right Ascension clutch disk enables manual movement
  • 35mm steel Right Ascension shaft
  • 88mm, 144-tooth aluminum alloy worm wheel
  • 15.2mm, brass worm gear
  • Four-piece roller bearing provides smooth movement with reduced vibration
Alt-Az Base
  • Vixen-style dovetail saddle accepts the tracking head without tools for attachment
  • -30° to 65° latitude adjustment range
  • ±5° azimuth adjustment range
  • "Bull's eye" bubble level
  • 3/8"-16 and 1/4"20 socket for attachment onto most astronomical, photo, video, or field tripods
Camera Attachment
  • 3/8"-16 camera mounting block to mounts camera directly onto tracking head or dual-mount on Declination bracket
  • Mount a camera onto head using a ball-head for smaller cameras
  • Use included Declination bracket for heavier rigs with included counterweight assembly, for dual-camera mounting, or smaller telescope OTAs
  • Dual camera mount payload of 11-pound + 7.7-pounds

iOptron SkyGuider Specs

Key Specs
Mount Type
Alt-Azimuth
GoTo Capability
No
Payload Capacity
11 lb / 5 kg
Motor
Single Axis
Power Source
USB (Built-In)
Battery
1x Rechargeable Lithium-Ion
 • Up to 20-Hour Runtime at 68°F / 20°C
Mounting
To Camera:
GPS
No
Weight
2.2 lb / 1 kg (With Battery)
3.2 lb / 1.5 kg (With Base and Battery)
Mount
Mount Type
Alt-Azimuth
GoTo Capability
No
Payload Capacity
11 lb / 5 kg
Motor
Single Axis
Altitude Adjustment
Yes
Latitude Adjustment
Yes
Declination Adjustment
Yes
Right Ascension Adjustment
Yes
Counterweight
3.1 lb / 1.4 kg
Polar Axis Scope
Yes (Built In)
General
Power Source
USB (Built-In)
Battery
1x Rechargeable Lithium-Ion
 • Up to 20-Hour Runtime at 68°F / 20°C
Input Power
5 VDC
Inputs / Outputs
Micro-USB
Mounting
To Camera:
GPS
No
Operating Conditions
14 to 104°F / -10 to 40°C 
Dimensions
5.2 x 4.5 x 3.7" / 133 x 115 x 95 mm (Without Alt-Azi Base)
Weight
2.2 lb / 1 kg (With Battery)
3.2 lb / 1.5 kg (With Base and Battery)
Packaging Info
Package Weight
10.09 lb
Box Dimensions (LxWxH)
12.55 x 11.55 x 5.75"

iOptron SkyGuider Reviews

Steep learning curve

By Dana
Rated 4 out of 5
Date: 2025-07-01

If you are new to star trackers, I don't feel that the manual or website gives enough detailed instructions, so I had to do a lot of researching on-line how to use the SkyGuider. Also, the iOptron app that they instruct you to use for polar alignment is not available, but there is a very similar one, Polar Scope Align, that you have to use instead. I think that I was able to successfully do the polar alignment when Polaris was very bright, but my last time out, I could not see Polaris through the SkyGuider scope. The whole set-up is very complex, and the polar alignment is rather awkward and hard. Hopefully it will get easier with practice. So far, I have not achieved the results that I had hoped for. The main benefit of the tracker is being able to use a lower ISO while capturing a longer exposure of the sky without blurring (tho you have to do a non-tracked exposure of the foreground to keep it from being blurry and composite the two exposures). I was able to keep pinpoint stars in the center of the photo, but stars toward the edges had a triangle shape. Not sure if this is due to misalignment or lens aberration or the tracker's fault. I'm hoping that I can achieve more detailed Milky Way photos in the future if I can find darker skies. I am optimistic and will keep trying.

Ditto

By Patrick
Rated 4 out of 5
Date: 2024-02-12

I haven't had a chance to use it yet, but spent a lot of time getting familiar with setting it up and its operation. Generally, I have the same praises and complaints as most people. However, my biggest complaint, if you can call it that, is the dichotomy of it being for beginners (like me) and how much additional information you need going in. I thought it was a good deal for the price, but I ended up spending a lot of money for accessories I didn't know I would need. I would have still bought it, but it would have been nice to know going in. Do a LOT of research!

See any errors on this page?

Can I rotate the shaft and do adjustment while ...

Can I rotate the shaft and do adjustment while the guider is running?
Asked by: Andy
The manual adjustments can only be made prior to running the guider.
Answered by: Dan W
Date published: 2021-05-10

SkyTracker Pro Camera Mount with iPolar

SkyTracker Pro Camera Mount with iPolar
Asked by: Steven
The iOptron SkyGuider Pro EQ Camera Mount BH #IO3550 • MFR #3550 has a Integrated AutoAlign illuminated polar axis scope allows for precise alignment to improve tracking accuracy; 6° field of view for easier alignment; adjustable illumination intensity
Answered by: John
Date published: 2022-09-15

Can you attach an Arca Swiss clamp to the camera ...

Can you attach an Arca Swiss clamp to the camera mount so you can slide a compatible plate into the clamp rather than using a ballhead with an Arca Swiss clamp. My preference not to have to remove plates from camera/lens to attach to camera mount (attached to the declination bracket)?
Asked by: Sharon
According to your procedure it would be possible.
Answered by: John
Date published: 2021-11-30

What does the camera mount on if the tracker ...

What does the camera mount on if the tracker attaches to the tripod? Where is the ball head used?
Asked by: Rose
The Ball Head is used on the left hand side of the Tracker. The bottom of the Mount attaches to the Tripod.
Answered by: Alex S
Date published: 2020-11-30

I already have a Polemaster camera to polar align ...

I already have a Polemaster camera to polar align my telescope, and it is easily removed from the telescope. Would that fit in this mount instead of my having to buy the iPolar camera (or the bundle that comes with iPolar)? Yes, I already know the visual polar scope can be used to align the mount, but accuracy is higher with a polar camera.
Asked by: Shelby
No, the Polemaster will not fit inside the Skyguider Pro.
Answered by: Anonymous
Date published: 2019-10-07

Are all brands of ballheads compatible to attach ...

Are all brands of ballheads compatible to attach to DEC Bracket?
Asked by: Sharon
I am not speaking of attaching the device to the tripod. I am speaking to screwing on a ballhead to the DEC Mounting bracket, the device with the counterweight pole, etc. Thanks.
Answered by: Sharon
Date published: 2022-02-23

Just to be clear, this comes with the mount head ...

Just to be clear, this comes with the mount head (tracker), the altazimuth base, dec bracket, and counterweight?
Asked by: Chris
Yes it does. But I found that I had to buy an additional counterweight when using ONLY a 400mm lens.
Answered by: Charles
Date published: 2024-11-27

How does the 1/2X tracking rate work. It's ...

How does the 1/2X tracking rate work. It's supposed to allow you to have the sky and also the ground without any blurring of the ground portion of the image. Has anyone tried this? How does it work? Thanks.
Asked by: Dan
It cuts down the movement tracking There are some YouTube video demonstrations
Answered by: John
Date published: 2020-11-03
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