Canon C80 coming soon

[kye]

3 hours ago, eatstoomuchjam said:

That, and also to set the aperture down to like f/16 or f/22 and shoot something - or even to put a pinhole lens on and shoot something.  If you ever want to know how many pieces of dust have landed on your sensor, a pinhole lens is the quickest way to see them all.  🙂

I did think of that, but took it out of my reply because I was thinking that anything on the sensor would be in-focus regardless of what the lens was doing.  Maybe I'm wrong though, not sure..

[eatstoomuchjam]

3 hours ago, kye said:

I did think of that, but took it out of my reply because I was thinking that anything on the sensor would be in-focus regardless of what the lens was doing.  Maybe I'm wrong though, not sure..

You'd think so, but no!  If you're using like an f/1.2 lens, you can have surprisingly big dust spots on your sensor and never be any the wiser.  The more stopped down, the more they appear.  From what I remember, and I might be wrong about this, it's bascally the same effect as using a large diffuse light source vs a small point source - put your hand next to a white card near the large diffuse source and you'll get a blurry, indistinct shadow.  Do the same with a small point source and you'll get a well-defined crisp shadow.  It's the same on a smaller scale with sensor dust.