iOptron CEM25P "Center Balanced" go-to German equatorial mount with 1.5" tripod and hard case


Availability: More on the way

Add a hard case to the best selling iOptron ZEQ25, then install technology from the larger and more expensive iOptron CEM60 mount, and a new legend is born – the iOptron CEM25HC.
Our Product #: CEM25HC
iOptron Product #: 7100P-HC
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Product Description

The iOptron CEM25P center-balanced go-to equatorial mount with 1.5" tripod legs is whisper quiet, light in weight, and uses up to 60% less power than other mounts in its category. This CEM25HC version adds a hard case for the CEM25P mount head at less than the cost of buying the mount and case separately.

The iOptron "Z" design mount puts the weight of the payload over the mount's center of gravity, allowing for greater natural stability. Given its payload capacity, this means the "Z" designed mount is unusually light, a nice benefit when transporting and setting up at a remote observing site. Another mount feature is an adjustable counterweight bar to allow low latitude use without the counterweight hitting the tripod. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft.

The iOptron CEM25P is equipped with the latest advanced GOTONOVA go-to technology, making it one of the most powerful and accurate go-to mounts available. Its go-to database includes over 150,000 objects. The hand control is intuitive to use and its large 4-line LCD screen simplifies the process of aligning your scope on the night sky and locating objects.

The iOptron CEM25P features a new design center-balanced equatorial mount for a maximum payload of 27 lbs (12.3 kg) with mount-only weight of only 10.4 lbs (4.7 kg). It is a specialized astrophotography mount ideal for entry-level and intermediate astro-photographers. It has a spring loaded gear system with customer-adjustable loading force. Gear switches on both R.A. and DEC axes allow easy balancing when disengaged. A pivoting counterweight shaft allows for 0º latitude operation. There is a spring loaded Vixen-style saddle for mounting optical tubes with a V-style dovetail mounting bar.

The included iOptron AccuAlign calibrated polar scope has dark-field illumination and an easy polar alignment procedure, allowing for fast and accurate polar alignment. There is also a polar alignment routine in the software for those who can't see the Pole Star.

The iOptron mount's stepper motor has low power consumption for extended use in the field. The drive has low periodic error (< ± 10 arc seconds). It features new electronics and a control adapter from the more than twice as expensive iOptron CEM60. The controller features a built-in 32-channel Global Positioning System (GPS) and an integrated ST-4 autoguiding port. There is also a serial port for firmware upgrade and computer control.

The standard heavy-duty tripod weighs 11 lbs (5kg). It has 1.5" diaameter stainless steel tripod legs, with a die-cast metal tripod spreader and accessory tray.

Other CEM25P packages are available with an optional 2" diameter leg tripod that increases the tripod weight to 17.6 lbs (8kg). Also available optionally are a PowerWeight rechargeable 8 amp hour battery pack/counterweight combination, and an optional StarFi WiFi adapter for full function control via SmartPhone/Tablet/Computer.

Tech Details

Warranty 2 years


Review by:
I bought mine to go off the grid. I setup a rig-runner and marine battery. I took this to the remote North Maine Woods and imaged with a 12lb payload doing 5 minute subs. It's very energy efficient (with the cooled camera, mini-pc, mount only 2.5a) so I am able to get quite a few nights on a single charge. I also really like the "Z" balance design. You get a nice lightweight mount that is very capable. Balancing is extremely easy. You need to be careful and not carry it with a payload as you can damage the gears, but probably a good idea for any mount. I definitely recommend this mount for people looking to go off the grid, or want a very lightweight but still very capable mount. (Posted on 12/2/2018)
Review by:
I've been using the CEM25P over a year, and it has become my primary mount for my two William Optics refractors, for RGB and narrowband imaging. I also recommend this for anyone starting out in astrophotography, especially if they plan to use 100mm FL and smaller refractors. It's easy to set up, easy to balance your gear, easy to align, and it works very well with both ASCOM and INDI-based control software. (Posted on 10/24/2018)
Review by:
I purchased my CEM25P last summer for the 2017 Eclipse with the intent of using it for astrophotography afterwards. It has not let me down! After some initial issues, turned out to be a mis-wired RA motor, the CEM25P has performed flawlessly. I regularly get 3 minute subs while guiding. For a causal user like myself its perfect. I can also say that iOptron customer support has been top notch. (Posted on 10/6/2018)
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