|
Have a look at the Baader Narrowband filter sets, i use them and they are excellent and are reasonably priced. Stick with the7-8nm filters, 3nm us just too small and you need a longer exposure to get the same results. Especially as your just starting, stick with the 7-8nm filters.The Baader filters are parafocal so you don't have to refocus between filters if you don't wish to do so. Forget Hb, all you need is Ha, Oiii, and Sii, and really most of your data will be Ha and Oiii. Don't forget that Oiii can be Moon affected due to its spectrum position, i try to shoot Oiii before the Moon rises, Ha anytime, but keep the moon away from the front of the scope if you can, 45 degrees is the minimum. Stick with a guidedcope until you have mastered NB imaging.
Re software i highly recommend SGPro for controlling your imaging sequence, very easy to setup your run, filter changes, etc.
Obviously you need to match your filter size to your filter wheel and type, many filter wheels use unmounted filters, so make sure you order the right type and size. I bought my Baader narrowband set from Teleskop-Express in Germany, good price for the set (they knock off the euro VAT tax for export to Aus), great service and fast shipping.Good luck.
|