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Marks on photo - sensor needs cleaning?


petebfrance 8 2.9k France
4 Mar 2017 4:38PM
Some marks appearing on a photo today. I had noticed something similar, and in a similar place, using an old lens but assumed it was the lens.
Photo taken at f9, can anyone advise or do I need to investigate further?
2 copies of photo, one with arrows pointing to where the marks are:
184684_1488645432.jpg

184684_1488645455.jpg

Please help!
also, close-up of marks:
184684_1488645669.jpg

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sherlob Plus
14 3.1k 129 United Kingdom
4 Mar 2017 5:06PM
Yes they look like dust bunnies to me. You'd get a better look at them by stopping down even further - f18 or 22. Your sensor needs a clean.
petebfrance 8 2.9k France
4 Mar 2017 5:10PM
Thanks. Very annoying, but thanks! Now I have to find out the safest way to deal with it as I've never cleaned one before....

regards
Pete
Philh04 Plus
14 2.1k United Kingdom
4 Mar 2017 5:18PM
Several different ways to do it, you just have to get your nerve up. If there is any doubt about your ability you can find a specialist....
bricurtis Plus
15 2.3k 50 England
4 Mar 2017 6:00PM
Buy an ' Arctic Butterfly ' cleaner - quick and easy - no messing with liquids.
petebfrance 8 2.9k France
4 Mar 2017 6:00PM
Phil, yes I have occasionally read threads on here about the various things to use, so I think I'll spend some time going back over them. As I'm 'out in the sticks' it's unlikely that there will be anywhere reasonably local to get it cleaned, so although I'm not really confident I suspect it will be better if I clean it myself. One of the problems is that some of the things people use (other than cleaning kits) are standard items bought locally, and apart from being well away from any big town, getting the same things here in France may be impossible.
petebfrance 8 2.9k France
4 Mar 2017 6:02PM

Quote:Buy an ' Arctic Butterfly ' cleaner - quick and easy - no messing with liquids.

Mm, I do have a lens-cleaning thing with a blower - thanks, I'll give that a try along with running the dust removal cycle a lot of times!
justin c 16 5.1k 36 England
4 Mar 2017 6:15PM
If you find the dust blower doesn't do the job, you only need some lint free tissues and a drop of suitable cleaning fluid. Have a look online for Pec Pads and Eclipse cleaning fluid. I would have thought it would be easy enough to post to France.
RoyBoy 15 303 2 United Kingdom
4 Mar 2017 6:34PM
Re dust blower. Don't make the stupid, stupid mistake that I made some years ago when I used an old blower which unbeknown to me had started to perish inside. I cannot begin to describe the mess it made on the sensor and the agony I experienced in the process. I had never cleaned a sensor before and talk about "jumping in at the deep end". Still I guess life us all about lessons learnt eh!
4 Mar 2017 6:36PM
There are various companies that will clean your camera, which may require posting it. Does your camera have a sensor cleaning feature, which can help shift some, if not all of it?

When I notice sensor dust issues that haven't shifted with the sensor cleaning feature, I firstly use the Visible Dust Hurricane Blower. When doing this, I have the camera switched off and facing downwards to let any dust fall free. I also make sure not to breathe inside the camera body and I always do this indoors. I blow air in several times. If any of the dust won't shift, I then use Visible Dust 1.5-1.6x Green Swabs, with Visible Dust Smear Away. This stuff is not cheap, but you get enough swabs for 12 cleans.

You should be cautious when cleaning your sensor by yourself. I have not had any issues from doing the cleaning myself.
Jestertheclown 11 8.2k 253 England
4 Mar 2017 6:52PM
I avoid dust blowers like the plague as, although they're quite good at blowing, the dust they blow has to resettle somewhere. Quite probably, back on your sensor.
The old idea that holding your camera upside down doesn't really hold water as it's extremely difficult, if not impossible, to pour dust.
That's not to say that it won't work, it's just that it's at the bottom of my list of solutions.
saltireblue Plus
10 10.8k 62 Norway
4 Mar 2017 6:59PM

Quote:That's not to say that it won't work, it's just that it's at the bottom of my list of solutions.


So which solutions are on your list above blowers, Jester? Any alternatives to those already mentioned?

Malc
Jestertheclown 11 8.2k 253 England
4 Mar 2017 8:20PM
I clean my sensors using a plastic spatula, the kind that children use in schools to spread glue; in fact, that's where I get them from. Just make sure that the edge is clear of any flash or bits left over during manufacture.
I then wrap a clean, usually new, lens cloth, the type that you get from the opticians with your glasses; my local "Boots" supplies them for nothing, in a certain way so that the edge is straight and free of lumps or creases and simply wipe the sensor; it's not actually the sensor at all, it's a piece of glass, with that.
I've been doing it that way since I got my first DSLR, several years ago and it's worked every time.
redhed17 14 871 England
4 Mar 2017 8:24PM

Quote:I avoid dust blowers like the plague as, although they're quite good at blowing, the dust they blow has to resettle somewhere. Quite probably, back on your sensor.
The old idea that holding your camera upside down doesn't really hold water as it's extremely difficult, if not impossible, to pour dust.
That's not to say that it won't work, it's just that it's at the bottom of my list of solutions.


As far as the blower is concerned gravity is your friend, so keep the camera pointing down. I used a Rocket Air Blower 100% successfully for about 3-4 years, it was only when I got a new camera which had spots of liquid on the sensor, that the sensor needed a wet clean as the blower will not clear spots created by liquid.

The liquid appeared as doughnut shaped spots btw. A wet clean may be the best way to remove liquid spots. Once you have done it once it is not as scary as it seems. The mistake I made first time was letting the swab 'scrape' along the inner wall of the camera which deposited 10x as much carp as was there originally, but realising the mistake, after the shock, it only needed passes with two more sensor swabs to clean.

As a first inexpensive and safe step (10-15) I would always advise trying the blower, if it works, great, if it doesn't then there are other solutions depending on how much you want to do yourself. I went for sensor swabs when the blower didn't work. Initially I bought a set of swabs and some Eclipse liquid. I also bought a 100 Pec pads to make my own swabs using the original set of plastic swabs. The liquid may last the rest of my life for the amount used so far. lol
petebfrance 8 2.9k France
4 Mar 2017 8:31PM
Great - thank-you!
I'll give the blower (carefully! - thanks for cautionery comments) and dust-cleaning cycle a go tomorrow. Actually not too convinced with the dust-cleaning sycle - it just makes use of the SR mechanism and as I've used fairly often since I saw it using the other lens I don't think it will not do much good. If that doesn't work, Pec Pads and Eclipse Cleaning Fluid are available on Amazon France (although as usual, only one left for the pads) and I'll put an order in.
But a vacuum cleaner is so tempting.
Meanwhile, I need to rescue my photograph Sad. The rainbow was starting to disappear so took a quick shot, camera still set to spot metering (and had a 35mm lens on) so metered at the end of the rainbow and hoped......still, I'm sure there'll be lots of other rainbows.

regards
Pete

Edited to add
PS - just read you comment, Jester, which crossed mine. Will think about that one too..

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