Description
Youll spend less time fiddling with counterweights and more time actually imaging.
Final Thoughts
The iOptron CEM40 is one of the most thoughtfully engineered equatorial mounts in the under-50 lb payload class. Its light enough to travel, strong enough to handle heavy imaging payloads, and precise enough to guide with confidence. Its mechanical quality, clever alignment tools, and expansive GoTo functionality make it a true all-around performer for those who need both versatility and reliability in the field.
If youre ready to take your astrophotography setup to the next levelor you just want a mount that feels as solid and smart as the telescope it carriesthe CEM40 delivers.
Tech Details:
|
Manufacture |
iOptron |
|
Model |
CEM40/CEM40EC |
|
Mount Type |
(CEM) |
|
Payload (excl. CW) |
18 kg (40 lbs), exclude counterweight |
|
Mount Weight |
7.2 kg (15.8 lbs) |
|
Payload/Mount Weight |
2.5 |
|
Structure Material |
All metal, CNC machined |
|
Exterior Finish |
Anodized red/black |
|
Latitude Adjustment Range |
060 (special CW shaft mounting if < 10 ) |
|
Azimuth Adjustment Range |
6 |
|
Tracking Accuracy (PE) |
< 7 arcsec / < 0.25 arcsec RMS (EC) |
|
Period |
400 sec |
|
Worm diameter |
17 mm |
|
Right Ascension Worm Wheel |
216 teeth, 110 mm, zero backlash |
|
Declination Worm Wheel |
216 teeth, 110 mm, zero backlash |
|
Right Ascension Axle |
45 mm, steel |
|
Declination Axle |
45 mm, steel |
|
Right Ascension Bearings |
68 mm |
|
Declination Bearings |
68 mm |
|
Counterweight Shaft |
20 x 410 mm (SS, 1 kg) |
|
Counterweight |
4.5 kg (10 lbs) x1 |
|
Mounting Base Diameter |
125mm |
|
Motor |
precision stepper motor, 1.8/128 micor-step |
|
Motor Resolution |
0.08 arcsec (200 PPS) |
|
Hand Controller |
Go2Nova 8407+; 8 line 21 character LCD |
|
Star Database |
359,000+, star identification |
|
Power |
DC 12V, 5A |
|
Power Consumption |
0.6A (tracking), 0.9A (GOTO) |
|
Polar Scope |
Internal iPolar eletronic polar scope |
|
Meridian treatment |
Stop (0-10 pass), flip |
|
Zero position |
Automatic zero search |
|
Dovetail saddle |
iOptron Universal saddle, 5″ |
|
Max slew speed |
4.5/sec (1080x) |
|
PEC |
PPEC/Real time PEC (CEM40EC) |
|
Guiding Port |
ST-4 |
|
Communication Port |
USB |
|
GPS |
YES |
|
WIFI |
External (optional) |
|
Cable Management |
DC12V (3A), ST4,USB |
|
Tripod |
2″ |
|
Hard case |
CEM40EC standard, CEM40 optional |
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