Sensor Dust

Lets talk about sensor dust

In a comment recently with someone the subject of sensor dust came up and I am not sure I explained it well, So I thought I would do a post about it.

Now if your using an iPhone, a point and shoot camera or even a bridge camera, sensor dust is not something to worry about, but if your using a camera where you can change lens whether a DSLR or a Mirrorless camera, if your not careful when changing lenses you will get dust on your sensor, in fact I think no matter how careful you are, especially with a camera such as mine where the sensor isn't closed off when the camera is turned off, you will get dust on your sensor.

Now I am normally fairly good about cleaning my sensor regularly, but I came across some photos where I clearly had not been careful changing the lens nor cleaned the sensor that would be good to explain it in this post

But let me first start with the finished photo and then get into the dust of things


sensor dust.jpg

Sony A7iii 75mm F14 4 Sec ISO 100
Click here to view larger


Here is the Photo as taken off the camera, and you will spot a few black dots of circles particular on the upper right corner, those are caused by dust on the sensor


sensor dust-3.jpg



And adjusting the image a little the spots become more visible


sensor dust-4.jpg



But even then there are more spots that one doesn't even notice, on Photoshop I have a preset I use which highlights any dust on the sensor, which is the next photo, and you can see the sensor on my camera at that time was really dirty with lots of spots, you will notice so many of them in the sky and even in the water.

Cleaning them all off to get the final image I shared first was a bit time consuming, and motivated me to clean the sensor in my camera again this morning, and did a test shot and no spots on it now.

Cleaning the sensor, is something some worry about doing, I did the first time I had to clean mine, I wont go into how it is done as there are plenty of videos online to show how to do it, but if your careful you can do it easily, Sensor cleaning kits are fairly cheap, but if you do not feel comfortable doing it yourself, many if not all camera shops do offer the service to clean your sensor, of course for a fee, I am not sure how much as I haven't had it done in a shop myself.

So that's one disadvantage of a camera where you can change lenses, the chance of sensor dust, another disadvantages to be aware of if thinking of buying a DSLR or Mirrorless camera where you can change lenses is often you will end up spending more on Lenses than you did on the camera originally, there is always one more lens you think you need, and often your out and about and wish you had another lens with you that you happened to leave at home.
Of course conversely the advantage of being able to change lenses is, you can have lens for particular type of shooting you want to do, Landscape, portrait street photography etc.


sensor dust-2.jpg



After I cleaned my Camera, and started working on this post, I thought I would finish off the post with the last photo I took, a few days ago, to show my sensor isn't always that dirty as the example above

The photo off camera

sensor dust-7.jpg



The filter showing sensor dust on photoshop, and yes there were a couple of spots but barely noticeable

sensor dust-6.jpg



And a quick edit of that photo to finish off this post. both photos I used for this post are not great but serve to show how sensor dust shows up on photos


sensor dust-5.jpg

Sony A7iii 43mm F8 2 Sec ISO 100
Click here to view larger


And that’s all folks


unless stated otherwise all photos used in my posts are taken and owned by myself, if you wish to use any of my images please contact me.



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When I really get opportunity to use camera from friends. The sensor dust scares me most in lots of ways lol. Eye of the camera.
Your shots are always beautiful. Well put and edited💯

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Thanks Sensor dust is annoying for sure, but if you do ( what I dont do often) pop indoors or into your car if you need to change lens its not that bad and possible to reduce the amount you get

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No matter how careful I am, I always got dust on the sensor and this is really frustrating.
I use the service of a guy who repairs cameras for donkey years. Obviously I will keep on as I don't think I can clean it by myself.

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Thats what I always tell friends if your not comfortable doing it yourself go to a shop or friend to get it done

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you are great , and great post, great photographer, i always feel pleasure to see you post,, for long time today i visited

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Thanks kindly your support is appreciated

Have a great day

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Thanks for posting this, very helpful info. I find even being careful its hard to keep the dust away and I find myself cloning it out when it becomes to noticeable, then that's usually a good time to clean the sensor.

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That’s what happens with me also
Not sure how I got it so dirty back when I took these shots lol

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My Canon EOS R protects the sensor with blinds when the camera is turned off. That way changing the lens isn't that risky, but still the sensor gets dusty. Maybe because dust falls on the blinds and finds its way on the sensor later.

This informative post reminded me on one evening when millions and millions of midges were flying around while I was shooting a sunset. I thought because of the long exposure shot they wouldn't be seen in the image and at home I thought it was sensor dust, a lot of sensor dust, but this image doesn't show sensor dust, but midges - every circle marks one, and the work to get rid of these was the same 😎

sensordust.jpg

I absolutely love the first shot most, JJ 😍


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The new version of my camera has the shutter blinds but waiting till people do reviews of the production model before I order it

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Good idea to wait for the reviews.
Although my camera has these, there's always a dust spot somewhere in the images. Especially now, when I take photos of foggy scenes, they are easy to see.


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Yeah foggy or long exposures in low light spots always show up

I have been so tempted to order it but fir once in my life showing common sense lol

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Let's see how long you can wait 😉 I would have bought the Canon R5 the first day it came out, but it's way too expensive.

Hope you had a good start into the new week, JJ 🌞


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People have already received their preorders in Europe shipping in the US starts on the 31st of December but I am still waiting patiently
I think the R5 compares with the Sony A9ii brilliant cameras but a expensive
If money wasn’t a problem I would go for the A1 but 6.5k is tooooooo much lol

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Too expensive for just taking photos, but the R5 does focus stacking in camera. That's the only reason why I want it. I'm happy with all other functions of the R, and so I also wait patiently until it gets cheaper or I get a lot of money from somewhere 😁


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Yeah that much for sure
I don’t think any is the Sony models do in camera focus stacking

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I love focus stacking for macros, but always when I shoot such a macro I forget some parts of the subject, which are blurred later, no matter how many shots I take 😂


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I know with the remote (which I lost last week) you can manual adjust focus for focus stacking but it is something I have never tried

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With a remote? That would be cool. I have had a quick look and found such a remote ... for Sony 😪
Never mind, I will try to be patient and wait a little while longer 😀


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Yeah it’s a nice feature I never used

If I don’t find it soon I will order a new one

And then no doubt find it lol

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😁 of course 😉
Wish you a great day, my friend 🌞


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I remember doing loads of 1.2 shooting on location then doing a studio shoot and my images were a mess!!!!! Took me forever cleaning them!

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I can only imagine how king that must have taken

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I'm technically very far from photo details, that's why your post has not only art value for me, but also informational one, thank you;>

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Thanks kindly your support is appreciated

Have a great day

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My Canon has the blinds, but, it still gets sensor dust. I thought perhaps I wasn't taking care of business, but, as I read through the reviews on cameras, it is not uncommon.

That is a lot of work to get them out! This actually was pretty helpful to me, I wanted to try to clean mine, but, didn't have the guts. Now. I will look up the video and check it out. Thanks, JJ! I appreciate the how-to !

First shot. Definitely.

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Yeah I was concerned the first time to clean mine I had the cleaning kit for a few weeks before I finally did it

Foggy morning or king exposure blue hour shots really highlight the spots

If you want to check hie many spots you have open up the aperture to high say f22 and take a shot of a clear blue sky

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I'll do that! Thanks so much!

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But then again if your not bothered by them to much with the photos you take it may be better not to do that and get stressed seeing them lol

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Very beautiful landscape. A wonderful report.

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Thanks kindly your support is appreciated

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💪💪💪👍👍👍

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