Stopping down a lens to check for sensor dust

[Bharat Varma]

Ever wonder just why you needed to stop down a lens to check for dust on the camera sensor?

Here's a very concise explanation with an excellent graphic to go with it.


https://www.cambridgeincolour.com/tutorials/camera-sensor-cleaning.html

[Thad E Ginathom]

Ever wonder just why you needed to stop down a lens to check for dust on the camera sensor?

No. But now you come to mention it, I haven't a clue!

Sadly, the link is giving a page-not-found.

[Bharat Varma]

Sorry, try now. Just corrected the link.

[Krish Chandran]

Very informative and helpful. Thanks for sharing.

Not so long ago I moved to the mirrorless system and within a few months of usage I noticed sensor dust. Sensors of mirrorless cameras are positioned further out and the opening that houses the lens is significantly larger than it used to be for DSLRs.

I opted to clean the sensor myself using a VSGO kit  They have detailed instructions for usage and it worked flawlessly. I am very happy with the outcome. There are many YouTube videos explaining how this is done. I watched a few before I took the plunge.

There are different sizes for full-frame, APSC and M4/3, so be sure to order the correct one for your use-case.

[Thad E Ginathom]

opted to clean the sensor myself using a VSGO kit 

Yes, it is not difficult, nor is it anything like as scary as it looks. But it should not be the first line of cleaning for simple dust. First, try to blow that away.

Last time I did a wet clean, after doing the sensor, I cut the swab down and used it on the EVF.

(Reminder to self... I do have to buy an FF-size kit for my new[ish] camera.)