Hello Canon Community, I recently acquired a Canon 60D with a shutter count of around 4000 for my astrophotography endeavors. However, I've noticed significant dead pixel problems in long-exposure shots, particularly evident in images taken at ISO 100 and ISO 3200, as attached. Is this level of image quality expected for a camera with this shutter count? Any insights or advice would be greatly appreciated. Sample Photo Details: 30-second exposure at ISO 100 30-second exposure at ISO 3200 Thank you for your help.
Better quality photos can be found here: https://drive.google.com/file/d/1fFW2GaIa1rIBwUIlO6EhYhIG2fROJDpa/view?usp=sharing https://drive.google.com/file/d/1XFfuzoTg2VfT_GpRJ1bee-v1R0v_uC_B/view?usp=sharing
Try this for starters. Fix Red or White DOTS Dead pixels on Photos & Videos CANON Camera - YouTube Gary
Dead pixels in long-exposure shots can be an issue that caused by digital cameras over time, and it's not necessarily connected to the camera's shutter count alone. Dead pixels are individual sensor elements that do not respond to light, resulting in bright or colored spots in images. Many digital cameras, including the Canon 60D, have a feature called "Pixel Mapping" or "Pixel Remapping." This feature is to identify and correct dead or hot pixels. Check your camera's manual to see if this feature is available and how to use it. Running a pixel mapping routine might help address some dead pixel issues.
I don't think Canon even admit this is possible outside of a service centre and I have never seen it mentioned in a user manual. Having said that it has worked for me in a couple of cases, the only problem I can see is that once done you cannot undo it. Far better for the OP to use the dark frame subtraction method that experienced astro photographers use, that will remove dead, hot and stuck pixels.
Another possibility is that the dead pixels are stuck pixels rather than ones caused by the shutter count. Pixels that are persistently on or off are referred to as stuck pixels. They may result from various things, including heat, static electricity, or manufacturing flaws. You may try a few different things to solve the dead pixels. One is to attempt to remedy problems using a piece of software. Numerous applications are available, including Dead Pixel Buddy and FixMyDeadPixels. These apps use various methods, such as updating the camera's firmware or using heat therapy, to attempt to repair the dead pixels.
does the 60D have "long exposure noise reduction" in its menus? on my M50 this takes a second image with the shutter closed then the camera subtracts the noise from the first image, it removes the hot / dead pixels in the process (edit, looks like it does have it in the menu, best used on lower iso exposures)
