i have a EOS T6. I recently purchased a 30d for the 28-135 lens. I got it fairly cheap so i don't expect it to be perfect. But one of the problems i keep having is the orang flashing light in various light conditions. I now know it means slow shutter speed. In manual mode that makes sense and i have kinda started to figure it out. but it happens all the time in auto mode as well. When i get it in auto mode i have switched to manual mode, and changed the shutter speed so it will take a picture and then immediately go back to auto mode and now it works. I have other lenses and i have only had this problem if i forget to turn auto focus off when taking pictures of the stars at night. Is there a trick i am missing?
It could just be unable to achieve AF. If something more serious, I doubt the 30D is a good candidate for repair. If you have a local camera store take it in and have them check it out. If not maybe you can return it.
The 28-135mm zoom seems an odd choice to photograph stars.
Im not gonna use the 30D. I wanted the lens that came with it. Its not for taking pictures of the stars, that was only an example that i used for the only time i have seen the light flashing. Im going to use it for general photos out and about.
If you intend to do astro work you really need to be in all manual control anyway. A lens like the Rokinon 14mm f/2.8 IF ED UMC Lens is a great choice. It has a reasonably fast constant aperture and is fully manual. You could make some stunning shots with a properly working 30D and the Rokinon. Best of all the Rokinon isn't expensive. 😊
Which orange light? There is no orange light that "indicates a slow shutter speed". There is the (usually red) light that indicates disk activity and the light on the front to indicate that you are using a delayed shutter, and possibly red-eye reduction.