I was having a play this afternoon in preparation for my first attempt at sunrises / sunsets t and noticed what appears to be sensor dust on the image. I did a test againast a white background and see the same dots. I have attached an image that show them the most.
Anyway, I have had a look at the sensor and I cannot see anything on the sensor. I have tested both and present on both. From what I have seen on the forums they appear to be dust on the sensor. I have been paranoid about this (as most newbies are I think) and follow all the guidelines - came body down whne changing, I have never changed a in the open and always in shelter or jump in the car. What a waist of time. I have a 400d with and have red many threads about how well the cleaner works but wiht all my care it appears I have dust bunnies.
I am astounded how easily dust has gotten onto the sensor and that the cleaning system does not remove it at all. I have been rediculasly careful and as a rule never change a on site.
A couple of questions:
1. Do they look like sensor dust or do I have another issue?
2. Can I use one of the cleaning brushs and cleaning wads with fluid on the 400D sesnor with a vibrating cleaner?
3. Should I be able to physicaly see the dust on the sensor is is it really that small?
4. Recomendations on the best way to clean the sensor, brush, wet wad, puffer?
5. Do I just put up with it and just use dust delete data?
6. I was told that dust can actually get in via the barrel on my 55-250 EF-s IS - is this true?
Thanks in Advance for any advise,
Mike - dust bunny hunter