Once you have it sitting absolutely level, turn it so it’s aligned with the north-south line and adjust the north/south tripod leg to level it out. At first set it east-west and try to get it level by adjusting the tripod legs. Next, set your inclinometer on top of the tripod. That said, the closer you get it now the less adjustment you’ll have to do later. It doesn’t have to be absolutely perfect since we’re going to be doing further refinement later on using the mounts built in adjustments. You should be able to eyeball it by looking down the tripod leg and comparing it to the line you now have indicating the north-south line. You can start setting yourself up before sunset, there’s no point in wasting good imaging time setting up the telescope and mount! The first thing you need to do is get the tripod set up where you want it, pointing roughly at the celestial pole. This is the north-south line that you will need to roughly get your mount aligned to the celestial pole. When you reach the time you found out to be solar noon for your location, mark out using string/tape/whatever you have along the line of the shadow cast by your stick. You’ll want something at this point to mark the north-south line – I used string.
#Backyardeos no frame and focus free
Look up the Solar Noon for your location and free up that time. A better way to work out the north-south line would be during the day, get a stick and mount it 90° to the ground. You can use a compass here to get the rough direction of the pole nearest you. The first thing you need to know is which way is South/North.
![backyardeos no frame and focus backyardeos no frame and focus](https://i.ebayimg.com/images/g/NrUAAOSwM1Rg7elk/s-l300.jpg)
![backyardeos no frame and focus backyardeos no frame and focus](https://www.davidcortner.com/slowblog/20161009_n185_6400_60.jpg)
Histrogram Transformation x2 to further stretch the image after noise reduction.UnsharpMask (masked, with a range mask so only the interesting nebulae were affected).TGVDenoise (masked, L channel extracted post-histogram extraction).Image integration (using Winsorized Sigma Clipping).Blink to make sure everything aligned well.Blink to find and remove any really bad frames.BatchPreProcessing, calibration and debayer.Total integration time: 165 minutes PRE-PROCESSING DETAILS: This may well be the most exposures I have taken of one object in one night, and the resulting reduction in noise is fantastic!Ĭamera: Canon 450d w/ IR filter removed, GSO coma correctorĥ0 bias frames, 20 dark frames, 50 flat frames. Thirty-Three 5-minute light frames, calibrated, registered, stacked, and post-processed using PixInsight.