Hello
This is an image from pier 12.....I need to contact roboscopes staff. After levels in photoshop things looks like this .... camera doesn't work properly or something else, no idea what - contact me please
Hello This is an image from pier 12.....I need to contact roboscopes staff. After levels in photoshop things looks like this .... camera doesn't work properly or something else, no idea what - contact me pleaseThe first thing you need to do with your data set is to calibrate them, This will correct for noise, vignetting, OAG shadow and any dust bunnies. Once calibrated some use a form of cosmetic correction to clean any thing left over from Calibration this routine can also be used to correct the bad columns. All of the Roboscopes data sets are dithered, this is to help further noise reduction when stacking. It is advisable to use a good rejection algorithm for stacking such as Winsorised, Sigma or SDmask to name a few. You will find a completely different result to what you have shown here. Comets are very dynamic and have to be treated completely differently as they move against the background stars. There are several ways to process comets data but the way I approach is to create two separate stacks. the first with the stars aligned the second with the comet aligned. the one with the aligned comet you need to do a star removal routine and the one with the aligned stars you need to remove the comet. It is then a simple case of adding the two frames together. Hope this helps Peter Shah
Thank You for all help of courseThat's great thanks for the info one more question if I may, did you make a master Dark, Bias & Flat from the downloaded calibration files or have you 1, just used the light frames 2, just put the calibration files in with the lights it may be I am not quite getting what you are telling me so I am trying to clear it up Cheers SteveIn DSS I treated them as monochrome , then I created all masters for each channel separately ( LRGB ) not as usually do for mirror less camera matrix Also I downloaded Affinity photo and took step by step via tutorial how create LRGB image... as Pete mentioned about sigma clipping and I was quite disapointed about these stubborn vertical lines in two cases ( DSS and Affinity ) These lines are my main problem so give me advice how manage them - again thank you for analysis and look forward for good news cheers
Ok, I got maxim trial version, someone tell me how to manage these columns in that soft?This should help https://cdn.diffractionlimited.com/help/maximdl/HID_PROC_BADPIX.htm Steve
Hi I would like gierasimienko again but from pier 6, 30 x120 seconds, is that ok?Can do, it will be very small in such a short focal length scope, just so you are aware ? If you remember is was not large in a telescope with almost 3000mm in focal length so at 380mm focal length...... Steve