Used CEM25P Equatorial Mount

This is an iOptron CEM25P, an older model center-balanced equatorial mount, but still less than 10 years old.  It is in excellent condition, with a handset that works as it should.  The mount moves appropriately in RA and declination.  It looks like it was minimally used in the years since the previous owner bought it, but does have a tiny area of missing paint on the top of a tripod leg.  See the photos.  

It's so inexpensively priced because legacy EQ mounts just don't sell very well anymore with the harmonic drives on the scene.  This includes the steel tripod and counterweight, as well as the AC adapter and original manual and warranty card.  

We do have the packing box for the tripod and the foam-lined aluminum case for the mount head, so we can ship this to you for a $49 charge. There are no returns on this item.  If you're looking for a good deal on a great mount, look no further.  At just $400, this one won't last!  

Description

The next step up of CEM25 – Low Periodic Error CEM25P! The CEM25P has all of the features of the CEM25 and now has a guaranteed low periodic error of ~+/- 10 Arc seconds or less. The improved tracking accuracy is a product of tighter production tolerances. It also features larger gear switches on both axes, making access and adjustment easier especially with light gloves on. The Center-balanced Equatorial Mount (CEM), a mount whisper quiet and light weight, uses up to 60% less GOTO power consumption than other mounts in category. The "Z" design mount puts the weight of the payload at the 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 setting up at a remote site. Other features include an adjustable counterweight bar to prevent obstruction with the tripod. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft. The CEM25P is equipped with the latest advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 150,000+ objects. The Go2Nova® Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects.

	Features A new design Center-Balanced equatorial mount for maximum payload and minimum mount weight Specialized astrophotography mount ideal for entry-level and intermediate Astro-photographers Low periodic error (< ± 10 arc seconds) Payload of 27 lbs (12.3 kg) with the mount-only weight of 10.4 lbs (4.7 kg) Spring loaded gear system with customer adjustable loading force Gear switches on both R.A. and DEC axes for easy balancing when disengaged Adjustable counterweight shaft for 0º latitude operation Stepper motor with low power consumption New electronics and control adapter from CEM60 iOptron AccuAlignTM calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for fast and accurate polar alignment Polar alignment routine for those who can’t see the Pole Star Go2Nova® 8408 controller with Advanced GOTONOVA® GOTO Technology Integrated ST-4 autoguiding port Built-in 32-channel Global Positioning System (GPS) Serial port for firmware upgrade and computer control Spring loaded Vixen-style saddle Standard 1.5 inch heavy-duty stainless steel tripod (5kg) Die-cast metal tripod spreader with accessory tray Optional PowerWeightTM rechargeable battery pack Optional StarFi WiFi adaper for full function control via SmartPhone/Tablet/Computer

 

Specifications

Mount	Center-Balanced Equatorial Mount
Payload	27 lb (12.3kg), exclude counterweight
Mount weight	10.4 lb (4.7kg)
Payload/Mount weight	2.60
Periodic error (PE) *	<±10 arcsec
Right Ascension worm wheel	Φ88mm, 144 teeth aluminum
Declination worm wheel	Φ88mm, 144 teeth aluminum
Right Ascension axis shaft	Φ35mm steel
Declination axis shaft	Φ35mm steel
Right Ascension bearing	Φ55mm ball bearing
Declination bearing	Φ55mm ball bearing
Worm gears	Φ15.2mm, Brass
Motor drive	1.8º stepper motor, 128X microdivision
Resolution	0.17 arc seconds
Transmission	Synchronous belt
Latitude adjustment range	0º ~ 60º
Azimuth adjustment range	± 10º
GPS	Internal 32-channel GPS
Polar Scope	AccuAlign TM dark field illuminated
Level indicator	Level bubble
Hand Controller	Go2Nova® 8408 with 150,000+ objects database
PEC	Yes
Tracking	Automatic
Slew speed	1×,2×,8×,16×,64×,128×,256×,512×,MAX(4º/sec)
Power consumption	0.35A(Tracking), 0.6A(GOTO)
Power requiremention	12V DC(9 ~ 15V), 1.5Amp
AC adapter	100V ~ 240V (included)
Power-down memory	Yes
Serial port	Yes (on hand controller)
Autoguide port	Yes
Firmware upgrade	Yes
PC computer control	Yes (ASCOM)
Counterweight shaft	Φ20mm, Stainless Steel
Counterweight	10.4 lb (4.7kg)
Tripod	1.5" Stainless Steel(5kg)
Dovetail saddle	Spring loaded Vixen-style
Operation temperature	-10ºC ~ 40ºC
Warranty	Two year limited