Beginner Black spots on pictures

markgfisher

markgfisher

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Hi everyone,

I'm new to this, not posted before. Not taken too many pictures yet either!

I took these two recently and there are some black spots in the top right hand corner of the images, the same every time. I tried a different lens and they are gone so I'm assuming it's the lens.

Does the lens need cleaning? And if so, any basic advice as to how? Never done it before!


Thanks

Mark
 

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When you tried the different lens did you use the same f number? Whack it upto f16 or f22 and shoot a plain white/cream wall. This should show up any dust you have.

Can't see the image either but I do have trouble on the phone app with images.
 
Everything was the same, it shows up every time with one lens, which is a second hand one that came with the second hand camera, not sure how old it is) and never with the other brand new lens.
 
markgfisher said:
Everything was the same, it shows up every time with one lens, which is a second hand one that came with the second hand camera, not sure how old it is) and never with the other brand new lens.
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I'm always prepared to be proved wrong, but the way lenses work it's highly unlikely to be the lens, check the exif info if 2 comparable images and I'll be gobsmacked if Rich's post is wrong.

Alternatively put the 'new' lens on the camera and select f16 and take a picture of a white wall, ceiling, sky (you might need some + ec), I'll bet you can see the marks.
 
Thanks.

I'll have a go at doing that this evening and do a proper test.

If it isn't the lens what is it likely to be? And how can I sort it?

I'm going to South Africa for 3 weeks shortly and need to fix it.

Cheers

Mark
 
Thanks.

I've never cleaned the sensor, or anything on or in the camera before. Any basic advice? What tools are the right tools?


Cheers

Mark
 
As above. It's 100% dust spots on the sensor, but they only show up when shooting with the lens aperture set to a high f/number. It's not a lens problem - shoot at say f/5.6 and they'll magically disappear, or be almost invisible.

It's quite hard to get the sensor 100% clean, and some dust will soon return when you do manage it. Easy to clone out in post processing, but your sensor really needs a clean. Search for posts on that, easy DIY job.
 
Cheers everyone.

Really appreciate the replies.

I'll have a go at cleaning it tonight and see if I can sort it.

Sounds a bit scary going into the camera! Haha!


Thanks

Mark
 
Last edited:
markgfisher said:
Cheers everyone.

Really appreciate the replies.

I'll have a go at cleaning it tonight and see if I can sort it.

Sounds a bit scary going into the camera! Haha!


Thanks

Mark
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Read up on cleaning first. You can't just dive in there with a cotton-bud!
 
I've already got some cleaning solution and a pipette type blower that came with the camera.

Found an article with a step by step guide. I'll have a go!

Thanks again.
 
markgfisher said:
I've already got some cleaning solution and a pipette type blower that came with the camera.

Found an article with a step by step guide. I'll have a go!

Thanks again.
Click to expand...
I don't think that cleaning fluid is designed for sensors, it's likely lens cleaner.
 
I'll have a proper look at it tonight and sort out what I've got and what I need.

Cheers
 
For the love of god if you have not cleaned a sensor before and dont know what you are doing...please take it to a camera shop and have it done proffesionally. it doesnt cost a lot.

either that or just delete them in lightroom :)
 
quango2k said:
…please take it to a camera shop and have it done proffesionally.
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•
That like giving a fish…
but a good tip would be to lear fishing!

With the new tools on the market today,
to learn fishing is the better recommendation I think!
 
I'm with Kodiak, if you never try, you will never learn, and at £40 a pop to have it cleaned "professionally" i'd rather learn how to do it and keep my own sensor clean, as and when it requires it
 
I'll have a go at it myself, following instructions online.

If it doesn't fix it I'll have a look at taking it somewhere, don't fancy paying £30-40 when I could try and do it first.

Cheers
 
hmm, how often are you cleaning your sensors? i've done 50k shots on my 5diii in the last year and had it cleaned once..

You can get the AF screen replaced, and all cleaned which includes a sensor clean for £40 (APS-C) or £65 for full frame...and if they screw it up and damage your sensor, they pay the repair bill!

I send all 6 of my pro bodies off once a year for this service and I think its a bargain.

But hey, its your camera, your money :)
 
markgfisher said:
I'll have a go at it myself, following instructions online.

If it doesn't fix it I'll have a look at taking it somewhere, don't fancy paying £30-40 when I could try and do it first.

Cheers
Click to expand...

you will be spending £30-40 for the bits to clean it in the first place lol. looks like it needs a wet clean to me. if they are dry dust spots then those sensorklear sticks will move the dust, then you need to blow out the leftovers..if its wet spots then you will just smear them over the sensor making it worse.
 
quango2k said:
hmm, how often are you cleaning your sensors?
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I understand your argument but…
Formating a card, charging batteries etc are all things one should learn.
To learn to clean a sensor is, in my book, essential.

Pretty much like toilet paper…
better have it and not use it than not having it and need it!
quango2k said:
looks like it needs a wet clean to me.
Click to expand...
Rick, wet cleaning makes no sense anymore with the "adhesion" new
technologies… unless one drops caramel on the sensor! ;-)
 
quango2k said:
hmm, how often are you cleaning your sensors? i've done 50k shots on my 5diii in the last year and had it cleaned once..

You can get the AF screen replaced, and all cleaned which includes a sensor clean for £40 (APS-C) or £65 for full frame...and if they screw it up and damage your sensor, they pay the repair bill!

I send all 6 of my pro bodies off once a year for this service and I think its a bargain.

But hey, its your camera, your money :)
Click to expand...

£25 for a slightly larger swab? Learn to do it yourself. Sensors don't explode.
 
Someone said (somewhere) they managed to pull their sensor apart with the eyelead sticky stick. I have no idea how that would be even possible. I bought one and carefully cleaned some dust and I have no idea what (was like a very thin hair-width) of *something* off my sensor, and I didn't break it. It's pristine now... or was...
And I'm an idiot!

+1 for eyelead thing :)
A sensor cleaning loupe (illuminated) is a great bit of kit, too.... just make sure you don't put it down on something dirty/dusty before placing it over your camera!
 
I've a really dirty sensor on a 2nd hand Nikon d7000 i have just bought, ordered the green swabs for oil based marks and a rocket blower, just take your time and you should be fine, please make sure you have a fully charged battery to hold the mirror up.
 
Kodiak Qc said:
I understand your argument but…
Formating a card, charging batteries etc are all things one should learn.
To learn to clean a sensor is, in my book, essential.
Click to expand...

Learning 'can' have both positive and negative effects..Sure, the OP (an beginner) could have the dexterity of a surgeon and know what pressures are OK for a sensor and clean it correctly...He could also be ham fisted (like me), zero patience an end up with an expensive paperweight.
 
•
Of course, no hat will fit everyone!
 
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