But at 50mm, I don't get much movement at all from the setup, so I'd have to dither manually… It works fine with a dithered image-and I get plenty of "natural" dithering from my setup if I shoot at 200mm or higher. I use Lynkeos (indeed, for OS X), which does sigma-reject stacking. Im sure you have your reasons for using rawtherapee, maybe you use OSX? I still use it today because its so easy, I can go through the menus with my eyes closed. On a final note, I put off buying pixinisght for years but in the end, it was the best investment I made in the hobby, better than any camera, filter, lens, telescope or mount.Īgain, Im not saying I have the right solution, but Im happy to share my experience because I started out with the same camera as you back in 2013. DSS allows you to do alot more than simple averaging if you should choose to go that route. Im not saying this is the only way you can do this right, but I can say there is no reason this method would fail if you follow each step.Īlso, have you tried a program that utilizes outlier based image integration? Averaging your data certainly works, but other programs such as Deep Sky Stacker, also free, will let you knock out calibration, registration, and integration in one go. I do not use dark scaling, but suppose that this could help deal with the temp flux overnight. It is a sensor which gets hot and noisy, but with good darks/flats/bias, calibrates like a breeze.įor this reason I always spend the last hour or two of my imaging session shooting darks. They are all the same sensor in different bodies. I had no idea it could average images the way you describe. Perhaps if my AP one day produced a positive income (so far it's been $$$$ negative) I'd consider an upgrade…starting with my setup!īQ, nice job figuring out Rawtherapee for this use. But my time is free, so if I can find workflows with freeware that runs on my old Mac that produce pleasing results, I'll use them! Surmounting the challenge with successful results is my reward. I have no desire to sink more funds into new €€€ software rabbit holes (which would require $$$ to $$$$ computer upgrades), especially when I already know I'm capture limited (especially with a stock Canon 600D/T3i). RawTherapee (calibration) → Lynkeos (alignment & stacking) → Photoshop CS5 w/ (processing) I've added incremental improvements through the years, and my current workflow is I have 25 years of experience with (and over $1000 sunk into) Photoshop, and I started my foray into digital AP with superresolution in Photoshop. I am curious about the reasons why you chose this over other solutions like pixinsight (other than the most obvious one, that one is for free, the other isn't). And since templates seem to get averaged somewhere in the processing chain, there is no apparent performance hit by switching darks folders.Īre you doing all your processing in rawtherapee or just some steps? RawTherapee finds the bias frames and turns them into templates then when I check Dark-Frame Auto-selection, it picks the right bias stack to subtract. If I want to subtract just bias templates, I select the bias frames folder as the darks folder in the RawTherapee preferences. The answer is "No!" of course! I just created a folder of sets of bias frames and moved it to the same enclosing folder as the darks folder. But again, same problem (i.e., I can't select the bias). This really made me want to subtract out just the bias. So you can only imagine the holes created by the superheated pixels subtracted from the chilled sensor data. This became an issue recently when I tried to process some data from last winter (July), but my darks were from the hottest part of summer (January). So there's a crude sort of library, but there's no way for me to select the darks template to apply. To find the template for the file to be processed, it first looks for sets that match the camera EXIF data, and then for the set closest in time to the shots. It automatically combs the darks folder you specify and combines sets into averaged stacks called templates, but the only way a template gets selected for subtraction is for the Dark-Frame Auto-selection to be checked. One of the shortcomings of RawTherapee is that it doesn't have any provisions for a true darks library.
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