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BCN_Sean

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Everything posted by BCN_Sean

  1. I don't think MS are being restrictive with it; it's more of a safeguard of their reputation/product image. I'd say that most (probably not the bargain basement Amazon jobs) computers from a processor/GPU/RAM standpoint built in the last 10 years would easily support the operating system, a lot of these systems are probably carrying obsolete ancillary hardware like sound chips/webcams/network adapters and the like where the manufacturer of those parts has ended support for them (or in some cases, vanished); so even with attempting to install W11 on that machine, the support and guaranteed compatibility wouldn't be there. If it was offered to all, then a lot of folk would blindly click the "update now" button, and then start banging away in all caps on every sounding board they find because Windows 11 broke their computer instead of realising it was their computer that broke Windows 11. Drawing that line with TPM has probably brought them some flak, but probably a lot less than X million folk like my other half who wouldn't understand why their 10 year old cheap end of the spectrum (when new) machine isn't working right because some other vital parts of the recipe were EOL'd back in the middle of the last decade.
  2. That's a sweet image, I'd be happy if I'd got that one!
  3. Not in asinh, the one on the actual histogram; I can't remember how many times I've forgot to hit apply and then just hitting close. When it comes to the way to commit a modules change in SiriL it looks like there's been at least three different development teams on it, each with their own chain of design and that has introduced a few little flies in the soup because of it and if not wary of it (or it's like my usual, about five in the morning) then it's easy to get bitten with them.
  4. Ah, that's not too bad... Forgetting to click "Apply" before clicking on OK after spending a few minutes getting the perfect histogram is one that gets me more often than not!
  5. Yeah, I generally use it in a script or via the command line (eg seqsubsky light 1), but there is an option in the interface as well, just open the light sequence and apply; a polynomial order of 1 should be sufficient on untreated lights. Just helps getting rid of simple gradients which when stacked would turn in to a complex one; then after stacking just hit it again.
  6. I've been using it for a bit, and still getting my head around it, well still getting my head around the post capture in general. One thing I've found with it is that the background extraction tool if run after photometric can pull out all sorts of nasties if the optics used aren't up to snuff. As for the photometric itself, with shooting an SLR and converting within SiriL, I've found it best to open one of the untreated lights in astap, solve that and then enter the co-ordinates manually (and maybe downsample as well) as sometimes even if the image is out only by a smidge of a degree to what it expected then it may fail to run. The deconvolution, that is something that I've had hit and miss results with as well; if the image is fairly under sampled, then it doesn't work well but if it's not too far off the mark then it works well. Best thing I've found with it is to extract the background before registration (very useful if stacking multiple nights) and then running that before any colour calibration on the stacked fit. The biggest gotcha I've found with the newer version, is that when opening a freshly stacked fit file, it looks though it's been cropped to remove the border but it's best to crop it in a bit further as there may still be some stacking artefact present that it's missed or just masked.
  7. @astrochumak, finally got around to getting some files off the computer; I left the other half supervising the new lines going in as I'd pulled an emergency call out, and they'd installed everything to the wrong side of the building to the network cabinet and the uninterruptible power supplies. Three days of routing network connections and power cables through the place, and hopefully (off to test it tonight) it's not caused any fun with the astro gear. This here is the sigma 70-200 at 200mm in length, with the rings I was saying about above, seems to be caused by reflections off of one of the elements, and it's noticeable in single unprocessed subs; I think it's when the zooming portion of the assembly (as it's a reverse zoom design) is picking up light that is reflected off the rear element. Whilst it's not impossible to correct out, it's a bit time consuming. This here is just colour balanced, stretched and size reduced.
  8. At the moment I'm using it up to 180mm and also use a 300mm F:/4 which has its own set of curiosities (mainly coma on the left side). I don't have any images from either lens on this computer at the moment but I'll try and dig some out in a bit but I'm in the middle of ripping the network to pieces in the apartment and rebuilding it so it could be a bit of time.
  9. I've a Sigma 70-200, and it's not too bad up to the 180mm mark when stopped/masked down to F:/4. However with the design of the lens as the zoom element moves backwards in the barrel it can start throwing odd internal reflections if there are bright stars within the field of view with the light being reflected off the rear element leaving which appear like Newton's rings and can be quite a pain to clear up; maybe be different on other generations of the lens, but I'm not going to risk your money on recommending a "maybe". If I'd not bought the lens quite a few years before I started with astrophotography, I would have been disappointed with it, whilst it's handy to have a few focal lengths covered in the same optic (70, 135 & 180) something like the Samyang lenses which vlaiv mentions above, or something like the Nikon 180mm IF-ED with a mount convertor on it would rip it to shreds quality wise.
  10. I was talking to a supplier the other day about equipment, and not as small market volume as astro gear, and they offered up a nugget of things becoming more widely available "about six months after the motor industry is back to full tilt". That's not really an answer though, but seems a reasonable assumption with the relative size of what that market consumes.
  11. Probably not a good idea even though a lot of guitarists say to use pencil to lubricate the string slots in the nut (if they're a constant player and change the strings regularly and clean the slots each time it probably isn't as bad). A pencil lead is a composite of graphite and clay, which in the short term would provide some form of lubrication but as the clay part gets exposed to moisture and drying cycles, it'll harden out and bind up.
  12. It's most likely the timer on the camera which is looking to see if the bulb mode is triggered or not. On a Nikon (which I use) it's only accurate down to about 1/10th a second (a hundred or so milli-seconds on an exposure of 30 + seconds is not going to break anything), and it's nothing really to worry about.
  13. Not really any of them, my other half would say I'm a gear head as if I'm not outside I'm on the workbench building something, but as it is I'd say a "relaxational astronomer" because when it's time to get some calm it's certainly a more relaxing and enjoyable few hours than being plonked in front of the tv.
  14. The more something frustrates, the more rewarding it is when it comes together. This summer I've had not a sniff of anything since June, not for the fact it's been cloudy as it hasn't... It's been so hot and dry that the haze looks like fog and the dust/fire ash is turning the sky an milky grey colour with about mag 3 - 3.5 being the limit of what can be seen (though the moon has chased the murk off now); it's not been a wasted time, though as spent a lot of time looking through some older threads on here, noodling some faults out on Astroberry, chasing down a couple of lenses for the astrograph and sucking up holiday cover.
  15. Two in the space of about three hours, but at the same time with the weather it wasn't the sort of night where any observing exercise would have paid off.
  16. The 14mm is pretty neat, I borrowed one off a pal of mine and nearly didn't give it him back; I've not bought one myself as I've already got a 16mm F:/2.8, but if I'd not got something at that sort of width I'd have one. If you do go for one of these, have a look at buying new (the manual focus one, last time I checked in the UK was about £330) as they can be a bit hit and miss on the quality control and sometimes have centring issues.
  17. Now that's got me scratching the head. Aside from contacting Skywatcher (or their regional service centre) about it, the only thing I can think of would be to pull the batteries on the mount then try a different USB cable and port on the computer and seeing if the device is recognised by the computer's device manager and the updater application.
  18. That looks like a nice bit of kit, if the enclosure for it is decent and can be integrated in instead of being tacked on (more like a Primaluce Eagle than a generic Pi box) then it'd be on the shopping list.
  19. Not had that one as if I get something and the firmware works on it, in lieu of any massive feature addition, I leave it be. Only thing I can think of for that is give it a hard reset, then get on the Skywatcher site and download the firmware and updater again (the current seems to be the 3.11 version for the firmware) and connect it through the USB to the computer; then once connected up, turn the dial to app before firing up the firmware updater on the computer, and then when done give it another reset.
  20. I've been quite interested in these cameras, probably not the 571 at the moment, but dithering towards the 183 more to it matching what optics I've got and with it being slightly wider more tolerant to the approximate DEC adjustments on the mount! Been keeping an eye in here, and gleaned some interesting info without having to ask the same question again in a few months. I ordered something a week before last and it went straight through without any issue.
  21. The only thing I can think of now is if you've got your clutch tightened up enough. It could be slipping because the weight on it is greater than the friction of the clutch otherwise. If that's tight, then it may need a service. There is this quite good guide here -> https://nightskypix.com/star-adventurer-problems/ which goes through quite a few of the common issues with these mounts and how to fix them.
  22. If the mount is the 2i version, connect it to the Pi with the USB, set the App mode on the control dial and then in EKOS/Indi, set the driver as the Skywatcher EQMod driver with a baud rate of 115200. The only thing that won't be available in the align module is anything that requires DEC alignment, but the polar align tool works, and it will slew to targets on the RA axis once the mount is synced to coordinates. I don't think it's officially supported in the driver, and also there are a few bugs which may or not present (biggest one I've found is when polar aligning, and if tracking is enabled it'll start a west slew but then cut back to tracking rate); but for guiding and polar alignment it works well.
  23. There's probably more than a few! One thing that skywatcher are very good at is writing bad manuals and there's a lot of things with the mount that just aren't covered in the instructions.
  24. Aside from what AstroNebulee says above, the only thing I could suggest here as I've fallen in to this one myself, is to do a hard reset on the mount. When I got mine, I played around a little with the app and then next time out with it not using the app, the tracking would suddenly stop. The odd thing with the 2i is that if there's been settings added by the app previously it will default to them even in "normal" mode.
  25. In quite a way you've just described me there, due to the v-word finding myself having a lot more time to dedicate to things; it's not that one morning I'd woken up and thought "Right, let's do this" but more that I started building back in to it because with the stop I'd realised how much time I'd got because unimportant stuff had been knocked to the curb. Sure, 40-odd year old me has a bit more disposable income than 15 year old me did, and also a lot more access to resources and a lot more learned experiences but perhaps at the same time a lot more confusion in things which I'm sure is partially down to marketing departments than anything else. Then on the other side of it, what has changed in them > 25 years is how much technology has come on to make "technology assisted" observing a lot more accessible; first time around for me was two bits of wood, an AC drive motor and a 35mm film camera so not really that precise and the feedback loop was in the order of a week. Now it is a lot closer to real time and a bit more accessible with what is available on the market at any sort of price range now, the youngsters today won't understand how crippling it could be to any new pastime with being stuck with what was only available from the pages of a family member's home shopping catalogue, not when there's instant shopping and how much quality can be bought for the same sort of price as what a toilet roll tube and a bit of jam jar could be had from the big book of dreams.
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