|
True. Gerd was good but really he shouldn't have been selling these thin filters without the spacers. Its a bit like selling a car and saying- oh you wanted a steering wheel with that? His fliters are good and I think he is also the cheapest. I got good colour from them without any difficulty and also got pleasing star colours. I for some unknown reason to me, sometimes get weird colour combines with the Baaders and then have to normalise the RGB to get a proper colour combine. Not sure if that alters things when you do that but it doesn't work if you don't. Perhaps something in my workflow is off. I never did that with Astrodons hence trying them out again. He got a bit of internet beating over this filters when the 16803's came out with really bad reflections from APOs with flatteners (all of them of course with a 16803 chip). All scopes need a flattener with these large chips.
I haven't done G2V yet but I will as I want to upgrade all aspects of my imaging and colourbalance is often a tricky point of imaging.
There is a program you can get that helps with this. I have seen it talked about on the SBIG yahoo site.
FLI research filters also seem to be good as are SBIG filters. I presume FLI research are really Custom Scientific rebadged - but don't know for sure.
Greg.
|