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Ioptron HEM27 owners thread.


knobby
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Hi all, took delivery of an 'open box' Ioptron HEM 27 on Wednesday.

Very impressed by the look and feel of the workmanship and can't wait to try it.

Tested connections, Ascom, Ioptron commander etc. indoors and updated the firmware with no problems. Connects to APT but can't slew from program, performs goto's ok but no manual slew, again not a big issue as I plate solve.

Only gripe so far is when converting the saddle to Losmandy, the clamp becomes very stiff / catchy and won't release under spring pressure - seems poorly machined but I can probably resolve that with tiny shims or washers.

Ascom / Commander software - https://www.ioptron.com/v/ASCOM/iOptronCommander_ASCOM_DriverInstaller8.exe ~~~ needs ASCOM Platform 6.5 SP1 or later to run ~~~

Install info  - https://www.ioptron.com/Articles.asp?ID=332

Firmware - https://www.ioptron.com/Articles.asp?ID=345

Firmware install info - https://www.ioptron.com/v/firmware/HEM27_FirmwareUpgradeInstruction.pdf

If like me you're coming form a Skywatcher mount and field power (12v battery etc) you'll need to get a 5.5 x 2.1 to 5.5 x 2.5 convertor - something like this https://www.ebay.co.uk/itm/174950199535 as the HEM 27 uses the 5.5 x 2.5 socket.

 

It Is only a tiny bit bigger than my AZ-Gti / wedge and just as easy to handle with my dodgy old back !

What is freaky Is watching It slew the C9.25 around with no counterweights as though It's a small can of beans 🙂

Photos, videos etc to follow...

 

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New firmware released.

V20220510 HEM27 Firmware Upgrade Improvement:  Improving GOTO Accuracy Bug Fix:  Removed hand controller PEC for HEM27EC mount. 

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Yes, for DSO I'll have the tripod as low as possible for rigidity but I did have to extend the legs to make sure the scope wasn't over hanging the feet. I'll probably hang the battery pack from the mount when in use.

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So, very rushed first session between clouds and teething problems aligning the mount.

Log attached.PHD2_GuideLog_2022-08-20_213456.txt

Poor seeing and whispy cloud, lots of mistakes my end then eventually had a good 20 minute spell.

 

HEM 27 non EEC / Carbon tripod / SW 72ED / Flattener / 290m guide cam / OAG / ZWo EAF so approx 4 kg.

 

Tried calibration a few times and complained about dec backlash, but in all honesty PHD2 did this on every mount I've ever had.

 

Overall, after tweaks in RA aggression managed 0.98" which is way better than I ever got with my AVX, HEQ5 and AZ-Gti.

 

edit - forgot to add, tried polar align in Sharpcap and APT paps, both gave different results 😞

PXL_20220820_215056554_1.thumb.jpg.0d39af19d87d867180f332672962983d.jpg

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5 minutes ago, david_taurus83 said:

Be interested to see results if you used PHD PPEC algorithm. I find my AZGTI improves quite a bit after 15 mins or so of guiding on target.

Weirdly I've just set up a new profile in PHD2 using PPec for Ra ... Rushed to test the other night and just tweaked the old profile.

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On 19/08/2022 at 09:51, knobby said:

Hi all, took delivery of an 'open box' Ioptron HEM 27 on Wednesday.

Very impressed by the look and feel of the workmanship and can't wait to try it.

Tested connections, Ascom, Ioptron commander etc. indoors and updated the firmware with no problems. Connects to APT but can't slew from program, performs goto's ok but no manual slew, again not a big issue as I plate solve.

Only gripe so far is when converting the saddle to Losmandy, the clamp becomes very stiff / catchy and won't release under spring pressure - seems poorly machined but I can probably resolve that with tiny shims or washers.

Ascom / Commander software - https://www.ioptron.com/v/ASCOM/iOptronCommander_ASCOM_DriverInstaller8.exe ~~~ needs ASCOM Platform 6.5 SP1 or later to run ~~~

Install info  - https://www.ioptron.com/Articles.asp?ID=332

Firmware - https://www.ioptron.com/Articles.asp?ID=345

Firmware install info - https://www.ioptron.com/v/firmware/HEM27_FirmwareUpgradeInstruction.pdf

If like me you're coming form a Skywatcher mount and field power (12v battery etc) you'll need to get a 5.5 x 2.1 to 5.5 x 2.5 convertor - something like this https://www.ebay.co.uk/itm/174950199535 as the HEM 27 uses the 5.5 x 2.5 socket.

 

It Is only a tiny bit bigger than my AZ-Gti / wedge and just as easy to handle with my dodgy old back !

What is freaky Is watching It slew the C9.25 around with no counterweights as though It's a small can of beans 🙂

Photos, videos etc to follow...

 

when you got this on Offer from FLO did they include the tripod or was that extra. I have a Ioptron tripod but cant work out if its compatable with this mount.

 

Adam

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9 hours ago, Adam J said:

when you got this on Offer from FLO did they include the tripod or was that extra. I have a Ioptron tripod but cant work out if its compatable with this mount.

 

Adam

Yes, came with the carbon tripod ... I've never used Ioptron products before but It appears to be the same fitting.

 

image.png.80204e988cdbeae1eca94f905aebc884.png

 

It does show both types of tripod in the manual.

image.png.046509169ebed679cbbd9dd8efef6b3b.png

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13 hours ago, knobby said:

Yes, came with the carbon tripod ... I've never used Ioptron products before but It appears to be the same fitting.

 

image.png.80204e988cdbeae1eca94f905aebc884.png

 

It does show both types of tripod in the manual.

image.png.046509169ebed679cbbd9dd8efef6b3b.png

I think it looks the same but its that centre post that i dont have. Did that come boxed with the mount or the tripod?

Adam

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4 hours ago, knobby said:

Ah, the centre post is part of the tripod, it screws into the top.

I'll be changing the saddle to losmandy later, I'll take pictures.

interesting, so it screws onto the 3/8inch thread that pokes through from below?

Assume that is a 3/8ths, or do you mean it screws directly onto the top plate itself?

Adam

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It's a bit weird to explain and mine had no manual ... but the peg is a screw in stud that locates the middle of the mount but just positions it centrally unlike a Skywatcher that screws down.

image.png.1e054cad1fbabe92f0cb66754dfc667d.png

 

The 'tripod spreader' screws in the same hole from below.

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  • 2 weeks later...

Quick update, nothing exciting managed a bit of planetary between the clouds last night.

Extended legs about 1/2 way which was enough to feel pretty stable, I'll make something to hang the battery pack from for extra security eventually.

When focusing it took about 10 seconds to dampen down vibrations ( was about 5 on the heq5 )

Also caught Io bottom left corner.

 

2022-09-03-2151_3-L-Jup_lapl4_ap168_ADJ-01.jpeg

PXL_20220903_185735739.NIGHT_1_1.jpg

PXL_20220903_221444459_1.jpg

Edited by knobby
Added Io note.
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  • 2 months later...

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