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How come those dark spots in my yesterdays Sigma shoots ? How to fix them?

Started Nov 6, 2021 | Questions thread
allineedislight Senior Member • Posts: 1,309
Re: How come those dark spots in my yesterdays Sigma shoots ? How to fix them?
1

Here is a nice article explaining how to spot dust on a camera sensor:

https://photographylife.com/how-to-spot-dust-on-your-dslr-sensor

Most of the time (e.g.indoors with open aperture) you will not even notice these spots.. but when you close the aperture and shoot against the sky or against a white wall you will see them.

Since you bought your camera second hand perhaps it never got cleaned in the last 10 years so perhaps a good idea to have your camera professionally serviced, i.e. sensor cleaned but also your optical viewfinder cleaned and focus adjusted. When it comes back from CLA (clean, lubricate adjust) it will be like new.

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