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  3. MarkS

    Fan speed

    Gerald, I can't answer you directly, as I don't have a DDM60 pro, but I do have a DDM85. I imagine that the fan control works the same. There are only the two connections on the 3-pin fan plug. The fan is controlled by voltage variation (I don't know if it is done by mark-space ratio or DC voltage adjustment, and I can't get to my gear to check). In any event the variation occurs within Autoslew. Have you tried re-installing Autoslew? If that doesn't fix it send an email to ASA Support - response is usually prompt. Mark
  4. Hi there, as I am pretty unsuccessful in selling my remote observatory located in Astrocamp, Spain, I am now considering to sell the single components. Maybe there is something for each of you ASA DDM85XL on bent pier with counterweights and original power supply; I would imagine to ask about 9.500 Euro plus shipping (original shipping cartons are ready). It's a 2012 version with relative encoders. FLI ML16200 with grade 2 CCD, bought in 2017: Asking for 4000 EUR FLi Filter Wheel including LRGB Ha7 OIII SII Baader round filters: 1500 EUR Optical tube: Newton confi
  5. photon

    Fan speed

    Dear community, I noticed that the telescope fan connected to the DDM 60 Pro is running on full speed, no matter where the slider stays in Autoslew software. The DC fan is connected to the fan port with only 2 wires. As far as I can remember this feature worked in the past, did anyone notice this too? There is also a 3rd pin on the FAN connector, but it seems to be only a dummy. Couldn't measure any PWM signal here and the other pins always have full power. Best regards, Gerald
  6. Thank you very much for your response
  7. I assume you are using CCDInspector to analyse for curvature. This may seem heretical, but I do not take a lot of notice of CCDInspector. I find it can give highly variable results - even within a single run. Having said that, there is always going to be some field curvature, and the FWHM of stars will deteriorate as you move out from the centre of the image. The deterioration may or may not have a curvature component. I find the most reliable - if very tedious - way to assess the image is by eye! (I produce my images primarily for printed display, so it's very important that the stars in
  8. Last question Mark, Do you take 57.29mm as a backfocus for the Wynne corrector? By analyzing my images, I get 24% curvature on my images. It seems strange to me since I calculated everything to the nearest millimeter. BF Canon Ra = 20mm BF Adaptator = 29mm BF T-RING = 8,3mm TOTAL = 57,3mm
  9. Hello, i try to guiding with PHD2 a and, just one example 334 ms west guide pulse at 00:37:58.614 still hadn’t been reported as completed by 00:38:00.9, an elapsed time of 2.3 seconds. The problems occur on both the RA and Dec axes. Can you help me please. Thanks
  10. Hello, We have performed a recommended software upgrade for this forum. Seems that some colors have been changed after it. We will restore them asap. Please let me know if anything besides this is not working correctly. Know issues: colors are not correct Changes: bbcode deactivated CS, Michael
  11. The Cats Eye will give excellent on-axis collimation, even if the secondary mirror is not at the correct distance from the primary. So there may still be tilt. Only adjust two secondary screws at a time, and don't touch the centre screw. This will ensure that the secondary is only being tilted, and stay in the correct axial position. If the secondary has never been moved along the optical axis of the OTA, you should not have tilt problems (Unless the camera itself needs correcting. This can happen!) If the secondary needs re-positioning, there is an ASA document on how to get it right.
  12. Hello, Mark. Thanks a lot for your answer. 😉 These are the old G4 cameras so no built-in tilt adjustment. I use the optical divider from SKYMECA which manufactures this very simple and formidable system. For OTA alignment and collimation, I use the CATSEYE system which works very well and gives me satisfaction. Hope this can correct / minimize all these issues. Anyway, if the focuser didn't give me satisfaction, I changed everything for the OPTEC Leo system. I hope that with the CATSEYE everything will go well and that I will not go into interminable adjustments ...
  13. I have not used my G4 with my ASA10N/ASA3" Wynne/AAF3, but I use a G3EC with external filter wheel with absolutely no problem. This camera weighs 2.9kg, whereas the G4EC plus L FW weighs 3 kg. So you shouldn't have any trouble. However, the ASA 10 alignment and collimation will be critical to minimising tilt. The dof for a f/3.6 scope is only ~+/-17micron. Therefore focal plane curvature plus tilt plus focus inaccuracy must be within a 35 micron band across the sensor dimensions. The axial position of the OTA secondary mirror must be spot on to take tilt out of the equation - it isn't goo
  14. Hello, I would like to acquire a MORAVIAN G4-16000 camera with external filter wheel and ASA3 "corrector for my Newton ASA telescope. My focuser is an AAF3. I would like to know if a person has this camera and this eyepiece holder in order to know if it is well supported. I previously had a lighter camera, the G2-4000, and had a lot of tilt that was difficult to correct. Before buying the G4, I would prefer to inquire. Thank you very much for your help.
  15. Hello all! I'm curious as to whether anyone here uses an AO-X with Sequence? I'm currently contemplating getting one but Sequence does have its quirks so I thought it be best to ask before taking the plunge.
  16. ColinR

    NGC 5128

    Imaging from bright suburban locations isn't great for faint objects so I figured I'd go after some of the brighter galaxies. It's not an overly deep image for the amount of exposures but I'm pretty happy with the resolution with the full stack coming in at 1.65". https://www.astrobin.com/full/bdgv2c/B/ Mewlon 250 F/10 ASI094 ASA DDM60 320x120s
  17. Can you explin how do one run does commads? can they be run using a script or CLI?
  18. I can't answer your question directly because I have no experience with 10 Micron mounts. However, I offer the following comments: 1. The ASA learning curve is perhaps steep, as the direct drive system is very different from others. I just threw away the old rulebook and started again! Balance and motor tuning are super-critical. 2. Some users seem to find the software difficult to deal with, particularly when trying to use it in conjunction with other observatory management software. Again I have no personal experience here. 3. There have been many software updates over the 7 y
  19. Hello All, I have just signed up to the forum because I am researching the possibility of purchasing an ASA mount and I am keen to get some feedback. I currently own a 10 Micron 2000 in a permanent set up which carries a dual scope system (FSQ106 and 152mm LZOS). I am looking to purchase a 100kg capacity mount to carry a 17 CDK and probably the 152 refractor together. I may also mount a small solar scope. At first, I automatically looked to the 10 Micron 3000 but more recently have become intrigued by the DDM100 which I believe may be available later this year. For software, I use V
  20. So you need a 14mm spacer to increase the backfocus distance. Then there is the matter of the axial position of the Parracor in the focuser to ensure you can reach focus. The ASA Wynne barrel design ensures this happens - you may need to experiment to find to right position for the Parracor. Mark
  21. Thanks Mark. Paracorr 2 backfocus is reported to be 80mm. The mechanical drawing shows 73.3mm from the end of the tube. http://www.televue.com/engine/TV3b_page.asp?id=61&Tab=_phot3
  22. Chris, Don't worry about collimation for the moment. The three images you present do not all show the same characteristics: I guess that the focus settings were not the same for each shot. However, the aberrations are roughly symmetric in each, and the CCDI image of curvature is symmetric. But the curvature is awful! I am not familiar with the Parracor, but I suspect that the backfocus distance of 57.3mm, which is correct for the ASA 3" Wynne (measured from the front face of the Wynne to the image plane) is not correct for the Parracor. I don't know what information is available for
  23. Hello all. I have a new to me 10N and 3" Televue Paracorr 2 that I'm having trouble getting anything near round for the stars. Even when centered, stars are triangular or 3 lobed shapes. My image train is the OK3Z focuser, extension plus holder, Paracorr with AVI-3200 imaging system adapter, imaging system-M42 adapter. The camera for the tests is an SBIG STF-8300 with the FW8 filter wheel and OAG. Backfocus of the combination is 57.5mm. My collimation is close but not spot on yet. Is my problem the spacing, image-train, collimation or something else? I have a Takahashi Epsilon too but hav
  24. Hi Christer. I had no problems with speed whatsoever. I used it with a ASI 174MM cool for solar imaging. My Icron Ranger 2304 could not work with it... Maybe this info is what you need?: https://cdn-reichelt.de/documents/datenblatt/E910/SILEX_DS600_DB_DEU.pdf B.R. Waldemar
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