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iOptron CEM70 “Center-Balanced” Go-To Equatorial Mount, iPolar Finder, Without Tripod

SKU: CMOZ440322654870
Inventory: In Stock
Category:
Original price was: $3,549.00.Current price is: $148.20.

Description

The CEM70’s innovative center-balanced design mount puts the weight of the payload at the center of gravity, allowing greater natural stability and lighter weight – a nice benefit when setting up at a remote site. The equatorial head, not counting the standard equipment counterweight or tripod, weighs only 30 pounds (13.6 kg) for the highest payload to mount weight ratio in its category.

The mount is designed to operate in both northern and southern hemispheres at latitudes from 0 to 70. Twin adjustment knobs in the base of the mount let you fine-tune the azimuth alignment on the pole over a +/-8 arc. When using the CEM70 mount at latitudes below 10, a few simple adjustments of the unique variable position counterweight shaft lets you change the counterweight bar angle so the counterweight does not bump the tripod during use.

The standard equipment iPolar finder for quick and accurate polar alignment.

Optical tube mounting method: The spring-loaded mount head has an 8″ dual saddle that accepts both industry-standard Losmandy “D-Plate” and Vixen-style dovetails.

No tripod or pier supplied: Because of the CEM70’s ability to be used with a variety of scope types in both observatory and in-the-field situations, no tripod is supplied. This allows the purchaser to chose from a 48″ pier for semi-permanent use with catadioptric scopes and astrographs (#8030), a 42″ pier more suited to reflector use (#8033), and an adjustable height tripod with a maximum height of 52″. The tripod weighs 17.1 pounds (7.8 kg) and has 2″ diameter stainless steel legs. A spreader bar locks the tripod legs firmly in place during use. The tripod is very solid and stable, able to support the CEM70 equatorial head and even its heaviest rated payloads with ease.

Observing Tip:

Dont be fooled by the CEM70s imaging prowessthis is an outstanding mount for visual astronomy as well. Its high capacity makes it perfect for mounting large SCTs, long-focus refractors, or heavy binoviewer setups. The smooth stepper motors and ultra-quiet slewing are perfect for public outreach or solo planetary work, and with iPolar and GPS on board, setup time is minimal even at remote sites.

Final Thoughts:

Whether youre imaging faint galaxies at long focal lengths or spending the evening showing Saturn to your neighbors through a big Cassegrain, the CEM70 delivers the kind of precision, flexibility, and power that experienced astronomers demand. Its center-balanced design, massive payload rating, and thoughtful engineering details make it one of the most capable and transportable observatory-class mounts on the market today. If you’re ready to scale up without weighing yourself down, this is the mount to get.

Tech Details:

Mount Center-balanced Equatorial Mount (CEM)
Payload* 31.8kg (70 lbs), exclude counterweight
Mount weight 13.6kg (30 lbs)
Payload/Mount weight ratio 2.33
Material All metal
Latitude adjustment range 0~ 65
Azimuth adjustment range 4
PE (by encoder)** < 5 arcsec
Worm period 348 sec
PEC PPEC
Right Ascension worm wheel 151mm, 248 teeth
Declination worm wheel 151mm, 248 teeth
Worm 21.2mm
Right Ascension axle 55mm, steel
Declination axle 55mm, steel
Right Ascension bearings 80mm
Declination bearings 80mm
Counterweight shaft 28x 415 mm (SS, 1.9kg)
Counterweight 9.5 kg (20 lbs) x1
Mount base size 152mm
Motor drive Precision stepper motor w/128 micro-step
Resolution 0.07 arc seconds
Slew speed 3.75/sec (900x) max.
Hand Controller Go2Nova 8410, 8 line 21 character LCD
Power requirement*** DC 12V, 5A (5.5mm/2.5mm plug)
Power consumption 0.6A(Tracking),0.8A(GOTO)
Polar Scope Internal electronic polar scope, iPolar
Meridian treatment Stop (0-10 pass), auto flip
Zero position Automatic zero search
Park position Horizontal, vertical, current, alt/azi input
Level indicator YES
Dovetail saddle 8″ Losmandy D & Vixen
GPS YES
Guiding port ST-4
Communication port USB2.0
Cable management 2xDC12V (3A), 3xUSB2.0, 1xDC in/1xDC out, iPort.
1X USB input for mount and USB hub
Operation temperature range -10C ~ +40C
Hard case YES
Pier/Tripod Optional LiteRoc tripod (8023ACC) or pier
Warranty Two year limited

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