Here is a Canon RF 100-400mm f/5.6-8 IS review. One of the less expensive lens…
Roger Cicala posted an interesting article on PetaPixel. You know that pesky dust spots you see in your Canon lens? Well, they are not really a problem, as Roger states:
Here’s a question I get asked about 15 times a week: “How can I get the dust out of my lens?” The right answer is you don’t. All lenses have dust in them and it doesn’t affect the images at all 99% of the time. Even if you clean it all out, it will be back after you use the lens a few times.
However, there are some situations where you really want to open the lens and get rid of the dust. Be aware that opening a lens voids guaranty, and that it is a potential risky affair. Be sure to read the warnings before you proceed. The following Canon lenses are covered in the article.
- Canon 17-55 f/2.8 IS(Canon 24-105, 24-70 f/4 IS, 24-70 f/2.8 II)
- Canon 85mm f/1.2 L
- Canon 85mm f/1.8 (Canon 100m f/2)
- Canon 70-200 f/2.8 NON IS (Canon 70-200 f/2.8 IS I and II)
- Canon 100-400 IS L (Canon 28-300 IS L)