Astrophotography raw files download

Presented here are raw files for you to use in practicing and improving your image processing skills. At the bottom of this page, you can see the results that I came up with for each of the images with the basic image processing that I explain in my book A Beginner's Guide to Astronomical Image Processing. These are the exact same image files used for processing those images.

Cropped out the misalignment. Then a couple more mild mid-range curves stretching. Went to channels and separately adjust levels for contrast. Then back to curves for RGB and each for more contrast. Moved to LR for sharpening and luminance noise reduction. Small shift on CA adjustment. Reduced vignetting opposite. Back to PS for star reduction 2x, dust and speckles, and a little more tweaking. It was basically a battle with noise. The data is there. I blame it on the cameras ISO. At it would be impossible to remove nearly as much artifacts than at Stretching before changing the bitrate could be a problem in reducing noise.

Thanks for the challenge. This was fun! Thank you for the data to play with. Processed in StarTools. Thanks again for the opportunity!! Edited all in Affinity Photo. Kept it as a 32 bit during all editing. I learned a lot here with this one, thanks, Astrobackyard! My first attempt was extremely red and then I realized that in levels stretching, I could stretch the master, red, green and blue channels all separately.

I did this maybe 3 times, channel mixer, denoise on just the shadows, a couple different curves layers and here you have it. Greetings from Germany! Interesting and great idea. Nice idea Trevor! I then tackled the gradients using some layering in PS and also the graduated filter tool in LR.

You had some really nice data to work with here. I tried to maintain good star color and carefully removed the light pollution gradient, leaving the emission from the Heart Nebula intact. So you are going to be disappointed if you wish to compose a mosaic using this set of images.

I even did not try to process any of the images until now. Now seeing this, I think I probably should try to complete it. It would be interesting to see your output after running the exact same files through APP, no post processing, just finish at integration.

I thought that maybe there was something here causing an issue but no, I still got the exact result as shown in my first post above. The image I showed used exactly the same files described by your file numbers. I even didn't look at my own log to figure out whether they are correct. I simply use the file numbers you described. I use PI's BPP for calibration and then straight integration, all with basic setting and nothing else.

The displayed image was stretched using the automatic screen transfer function to enhance the brightness and contrast. No additional post-processing was applied.

I am not a PI user so have no understanding of the processes involved when using it but could you do me a favour and process the same files in APP so we could compare results. Then just change the Image Viewer dropdown to 'l-calibrated' and when the calibrated image loads in the viewer, take another screen shot. So I no longer have a working APP installed in my computer.

Someone else here might help. Forum Icons: Forum contains no unread posts Forum contains unread posts Mark all read. Powered by wpForo version 1. Astro Pixel Process Clear all. Last Post. Neutron Star Customer. February 20, Reply Quote. Universe Admin. March 4, Cheers, Mabula. When you are done, share your version of the image on social media with the hashtag yourastrophotoskills — so others can find them all in one place! The only rules are that you do not indicate that the images were captured by yourself and that you please link to my website if possible when shared.

Also, if you incorporate some of your own data into the image, please make sure to specify this. All of the data shared on this page was captured by myself. The current files available are in.

They are quite large, so be prepared to wait for the download to finish before processing. Right now, there are 4 image files available to download. Each of these images includes a nebula, and this type of deep-sky object presents unique challenges and a worthwhile reward. A Radian Triad Ultra filter was used to help isolate the important wavelengths of light emitted by this nebula from a light-polluted sky.

My process of the IC data. You can download the individual exposures and calibration frames here. The image was captured through a Meade 70mm Quadruplet APO refractor over the course of a single, clear night in November There are many options to choose from when it comes to processing long exposure, deep sky astrophotography images.