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NEW iOptron CEM40 Debut

Jkulin

By Jkulin
in Discussions - Mounts

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Jkulin
Jkulin

IOptron have just released photos of their new CEM40, it looks truly gorgeous, no great details available yet, but loads of pictures at: - http://bbs.imufu.cn/thread-779999-1-1.html I had t

vlaiv
vlaiv

Indeed, I was not even aware CEM25 had that exact design. Shafts and bearing positions are different - indeed, CEM25 and CEM40 have Z shape, while CEM60 has bearings on both sides of DEC column

Rainer
Rainer

Hi,  I guess you wanted to say " ... the design is like a bigger CEM25 ... " as here the bearings are between DEC and counterweight shaft. It is the " Z " design. CEM 60 and CEM 120 have the DEC

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  • 3 weeks later...
JimothyC

JimothyC

Posted
Posted

They do look nice and would make a nice upgrade to my CEM25P. But the price is so close to the CEM60. I can’t help but think that would be the better long term investment. Although I suspect the price is currently at ‘early adopter’ level and might come down a bit in the future. 

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UKAstroBill

UKAstroBill

Posted
Posted
On 01/04/2019 at 23:22, JimothyC said:

 But the price is so close to the CEM60. I can’t help but think that would be the better long term investment. 

Yeah this was bugging me too, looking at early UK ££ numbers. I think there might be some confusion as to which package of the CEM40 is being priced. There are different codes for head alone without ipolar or much else, and other packages including various other bits, even before you get to the EC stuff. It's not clear to me that one can do a like with like comparison yet, though I do agree there is likely an early adopter premium. 

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  • 4 weeks later...
souls33k3r

souls33k3r

Posted
Posted

What i really like about the CEM40's are the two things:

1) The quick-lock gear clutches. These look, feel and i suppose work better when compared to the CEM60 family.

2) The integrated iPolar

Not sure if iOptron are thinking of integrating both of these in to their newer batch?

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FLO

FLO

Posted
Posted
5 minutes ago, souls33k3r said:

Not sure if iOptron are thinking of integrating both of these in to their newer batch?

We only know the CEM40 is the first of iOptron's "next generation design" mounts ? 

Steve

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souls33k3r

souls33k3r

Posted
Posted
4 minutes ago, FLO said:

We only know the CEM40 is the first of iOptron's "next generation design" ? 

Steve

Cheers Steve.

CEM60 design has (do correct me if i'm wrong) been the same ever since it launched so i think it makes proper sense to give it just that slight upgrade that will put it in the "next generation" bracket :)

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cotak

cotak

Posted
Posted (edited)
10 hours ago, souls33k3r said:

Cheers Steve.

CEM60 design has (do correct me if i'm wrong) been the same ever since it launched so i think it makes proper sense to give it just that slight upgrade that will put it in the "next generation" bracket :)

Likely, the ieq45 pro went on sale for like 2 years before the CEM40 launch and it was discontinued. The CEM60 is now on sale so maybe it'll get upgraded. However, given where it is right now don't expect too much of a change with CEM60 in terms of performance. So for me I was happy to buy the current CEM60EC at a discount. Maybe next generation the EC gets better but right now it does everything I need of it. If anything I'll wait for generation 3 before upgrading again :).

Edited by cotak
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Rainer

Rainer

Posted
Posted (edited)
15 hours ago, cotak said:

The CEM60 is now on sale

Sale ? Those prices are the same since 2 years I am looking at them 

?

Wait until the CEM 90 comes out ? in plain vanilla, EC or EC2 version all machined out of an Aluminum Block (not that ugly and flimsy  ? Aluminum/Magnesium injection molded parts) ?

Edited by Rainer
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FLO

FLO

Posted
Posted
19 minutes ago, Rainer said:

Sale ? Those prices are the same since 2 years I am looking at them 

?

We are not aware of a Sale either but @cotak is posting from Canada. Perhaps things are different over there. 

Steve 

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cotak

cotak

Posted
Posted

Well they have marked it as sale for a while, which is what they did for ieq45 pro as well before being discontinued. The CEM60 now is the odd man out in the CEM line with the old screw worm mechanism and magnets. Doesn't seem a great leap for them to update it to be the same as the rest of the family and finally add in USB3.

 

 

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Hicks

Hicks

Posted
Posted
12 hours ago, cotak said:

Well they have marked it as sale for a while, which is what they did for ieq45 pro as well before being discontinued. The CEM60 now is the odd man out in the CEM line with the old screw worm mechanism and magnets. Doesn't seem a great leap for them to update it to be the same as the rest of the family and finally add in USB3.

What is the difference between the CEM60 and the rest of the models you refer to? Does that difference impact guiding accuracy, backlash etc?

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cotak

cotak

Posted
Posted (edited)

The worm dis/engagement mechanism is the most rudimentary. It uses a screw knob that lets you lifts, locks, or float the worm. Since it's not a on or off setting for the knob some people gets confused. The goal is to float the worm so the screw is not pushing on it or lifting it, and let the magnets do their jobs keeping the worm on the wheel.

The newest models refined the cem25 model and have a toggle switch that lifts or drops the worm. On the cem120 there is even an additional axis locking switch.  While the cem25 has the spring tension adjustment exposed for user to adjust, the new models have adjustments that is not supposed to be touched other than for tuning.

Edited by cotak
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souls33k3r

souls33k3r

Posted
Posted
2 hours ago, cotak said:

The worm dis/engagement mechanism is the most rudimentary. It uses a screw knob that lets you lifts, locks, or float the worm. Since it's not a on or off setting for the knob some people gets confused. The goal is to float the worm so the screw is not pushing on it or lifting it, and let the magnets do their jobs keeping the worm on the wheel.

The newest models refined the cem25 model and have a toggle switch that lifts or drops the worm. On the cem120 there is even an additional axis locking switch.  While the cem25 has the spring tension adjustment exposed for user to adjust, the new models have adjustments that is not supposed to be touched other than for tuning.

Couldn't agree more. I'm glad that the CEM40 has that but they really should introduce this in the CEM60 line

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cotak

cotak

Posted
Posted (edited)

Well it works well and if it isn't broken what's to fix right?

Still I suspect they'll end up doing it and give the finish the stainless and CNC treatment as well when they update. That would be to gain more market share in NA where there seems to be an irrational preference for CNC and bling being mistaken as signs of quality. 

Edited by cotak
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  • 3 weeks later...
Rainer

Rainer

Posted
Posted
11 hours ago, Palantir said:

Does the EC version work with a guide scope or do the fight each other?  Also do you need EC if you have good guiding ?

Hi Palantir,

Encoders do make guding more comfortable. 

Guiding and ecnoder only fight each other if the guide frequency is too often. I ahce CEM 120EC2 mounts and my guiding frequency lately went up to 15 seconds a guide command not more often.

If you have encoder then you only guide for drift in RA and DEC due to Polar alignment and atmosferic refraction errors.

Rainer

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