Grandpa Ron
Been spending a lot of time on here!
- Joined
- Aug 9, 2018
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In a previous post I mentioned spots on sky and cloud photos. The consensus of opinion was dust on the lens and sensor. Well you folks were right on. It was just plain dirty.
I used a white piece of white copy paper taped to the monitor.
f22, focus infinity, 55mm 1/10 sec. 3200 ISO. Basically a blank screen.
This was the camera before cleaning. I was quite surprised, as I always keep a UV filter in the front of the lens and clean with a micro cloth.
Next I removed the UV filter and cleaned the lens front and back with an air bulb duster and micro cloth. Then used the air bulb duster to dust the inside of the camera body and the sensor with the mirror raised.
As you can see this is much better, but still some sensor dust which did not move or come off with additional air bulb dusting. Same camera setting as before.
Now came the tricky part, cleaning the sensor. This is often considered a no-no by many camera folks. A job best left to the camera repair pros.
But I ordered a sensor cleaning kit, watch several YouTube videos and swabbed the sensor accordingly.
Again, the same camera settings, and as you can see there is just a single dark dot on the lower left which I did not consider worth chasing. I expect it to be removed on the next cleaning.
In retrospect I guess my old film camera thinking prevailed. I have always used my cameras bodies for a lot of odd tinkering; such a home made pin hole lenses, telescope adapters, multiple lens etc. The only dust issues I encountered were with my 4x5 view camera film holders .
I had never even considered the sensor, tucked away behind mirror, to be prone to dust. So given my desire to experiment; sensor cleaning was just one more to task to be learned.
Thanks for the heads up.
I used a white piece of white copy paper taped to the monitor.
f22, focus infinity, 55mm 1/10 sec. 3200 ISO. Basically a blank screen.
This was the camera before cleaning. I was quite surprised, as I always keep a UV filter in the front of the lens and clean with a micro cloth.
Next I removed the UV filter and cleaned the lens front and back with an air bulb duster and micro cloth. Then used the air bulb duster to dust the inside of the camera body and the sensor with the mirror raised.
As you can see this is much better, but still some sensor dust which did not move or come off with additional air bulb dusting. Same camera setting as before.
Now came the tricky part, cleaning the sensor. This is often considered a no-no by many camera folks. A job best left to the camera repair pros.
But I ordered a sensor cleaning kit, watch several YouTube videos and swabbed the sensor accordingly.
Again, the same camera settings, and as you can see there is just a single dark dot on the lower left which I did not consider worth chasing. I expect it to be removed on the next cleaning.
In retrospect I guess my old film camera thinking prevailed. I have always used my cameras bodies for a lot of odd tinkering; such a home made pin hole lenses, telescope adapters, multiple lens etc. The only dust issues I encountered were with my 4x5 view camera film holders .
I had never even considered the sensor, tucked away behind mirror, to be prone to dust. So given my desire to experiment; sensor cleaning was just one more to task to be learned.
Thanks for the heads up.