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Olympus OM-D E-M5 Mark II The first OM-D's successor.

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  #16  
Old 23rd April 2018
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Re: Dust!!!!

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Originally Posted by jdal View Post
Hmmm...
Thanks for all this info, it's very helpful.

I'm happy to do this myself but the best price I can find for 12 SensorSwabs + fluid is 66 . I imagine I could get it cleaned for 30 ish.

However I also have an E-M5mk1 which may need cleaning at some stage. The question is how often would I need to clean these? Since I got my first E-M5 6 years ago I've noticed one pollen spot on the Mk1 and now this on the Mk2. I can reduce this frequency even more by using the 2 bodies - it reduces lens swapping by a huge amount.

I'll check the local stores and see what they charge then decide.
12 swabs will, in theory, give you 12 cleans, so about a 5 per clean. However, 66 is a bit crazy.

Try these people - they are cheaper and their site also has a lot of good advice:

https://www.cameraclean.co.uk/produc...=Cleaning+Kits
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  #17  
Old 23rd April 2018
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Re: Dust!!!!

Ok so curious I did the defocussed f16 shot! with a relatively new camera I wasn't expecting anything. Well hoped there wouldn't be anything anyway. So looking at the shot it did look pretty clean except for a large fuzzy streak across 2/3s of the frame? It looked suspiciously like a very out of focus hair or fiber. On looking yes it was an enormous crinckley fibre the sort that come off a very soft fluffy jumper! (not mine!). It was just sticking out over the sensor opening not actually sitting on the sensor so carefully with fingers I pulled it off. Phew! So after looking at the white paper shot no sign of the fuzzy line, great job done. Well sort of, now having looked closer there is a real dust bunny right at the edge of my sensor It's very small and so close to the edge I'm going to leave it as I'm sure I'd probably make it worse. Now to take some shots to see if I notice it. Overall glad I looked, not sure I'll be looking at my old camera though
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Old 23rd April 2018
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Re: Dust!!!!

Quote:
Originally Posted by pdk42 View Post
12 swabs will, in theory, give you 12 cleans, so about a 5 per clean. However, 66 is a bit crazy.

Try these people - they are cheaper and their site also has a lot of good advice:

https://www.cameraclean.co.uk/produc...=Cleaning+Kits
They're the ones I found! Price includes 4 shipping.

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...Well sort of, now having looked closer there is a real dust bunny right at the edge of my sensor It's very small and so close to the edge I'm going to leave it as I'm sure I'd probably make it worse. Now to take some shots to see if I notice it. Overall glad I looked, not sure I'll be looking at my old camera though
Exactly, I'm not going to go out looking for the things!
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  #19  
Old 23rd April 2018
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Re: Dust!!!!

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Originally Posted by Phill D View Post
Ok so curious I did the defocussed f16 shot! with a relatively new camera I wasn't expecting anything. Well hoped there wouldn't be anything anyway. So looking at the shot it did look pretty clean except for a large fuzzy streak across 2/3s of the frame? It looked suspiciously like a very out of focus hair or fiber. On looking yes it was an enormous crinckley fibre the sort that come off a very soft fluffy jumper! (not mine!). It was just sticking out over the sensor opening not actually sitting on the sensor so carefully with fingers I pulled it off. Phew! So after looking at the white paper shot no sign of the fuzzy line, great job done. Well sort of, now having looked closer there is a real dust bunny right at the edge of my sensor It's very small and so close to the edge I'm going to leave it as I'm sure I'd probably make it worse. Now to take some shots to see if I notice it. Overall glad I looked, not sure I'll be looking at my old camera though
Dust bunnies are a fact of life and I personally don't get too excited by them. I rarely shoot at f-stops bigger than f5.6 and with the thick m43 sensor stack it would have to be a fairly large bit of dust to be bad-enough to spoil a shot. In general, if they do show-up, it tends to be on skies and they are usually very easy to clone out in Lightroom.
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Old 23rd April 2018
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Re: Dust!!!!

Me too Paul I'm usually at between f5.6 to f8 for landscapes and even that huge hair didn't show up.
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Old 23rd April 2018
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Re: Dust!!!!

Thanks for brilliant advice. My E-M1 seems to need a good clean. Undoubtedly caused or worsened by an occasion when I accidentally changed a lens without turning it off.


Quote:
Originally Posted by pdk42 View Post
This is what I do:

...
Before shot:

- Take a shot of a plain white surface with the lens defocused and at f16 or f22. ...
Somewhere I read a more complex (possibly more sophisticated) version of this.

- find a *large* plain white surface to photograph
- set to MF and have the surface well out of focus
- set to manual mode and f/22
- adjust ISO so as to create a quite long exposure with about +0.7 EV over-exposure
- set IS Off
- release the shutter while panning across the white surface

I think the panning part is to help distinguish any irregularities in the scene from those on the sensor. Can't remember how long an exposure was recommended.

Does this make sense? Or is it more than necessary?
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Re: Dust!!!!

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Originally Posted by RobEW View Post
...

- find a *large* plain white surface to photograph
- set to MF and have the surface well out of focus
- set to manual mode and f/22
- adjust ISO so as to create a quite long exposure with about +0.7 EV over-exposure
- set IS Off
- release the shutter while panning across the white surface
...
Does this make sense? Or is it more than necessary?
If that's what you need to do to see them I shouldn't worry
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  #23  
Old 23rd April 2018
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Re: Dust!!!!

Must slightly degrade the image, slows down exposure............???
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  #24  
Old 23rd April 2018
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Re: Dust!!!!

I've decided to get a man in to do it.

Reasons:
1. It's pollen what's the problem, and that happens most when I'm out botanising, and in future I'm taking 2 bodies for that since I only ever take 2 lenses. Reduces the risk factor a lot. Plus I'm less likely to drop a lens in the river.
2. I only need this doing once every 3 years (dodgy statistics though - a sample of 2 is not good)
3. LCE only charge 30 and give the camera a general spruce up as well, although not a full service, obviously.
4. I was walking past the shop.
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  #25  
Old 23rd April 2018
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Re: Dust!!!!

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Originally Posted by pdk42 View Post
I'd not heard that. A quick bit of Googling reveals little, although I did find an abstract of some research in using methanol to de-polymerise PET (which is the most commonly-used plastic for bottles). This is what it said:


But - that's a reaction at 20,000 atmospheres of pressure and 300 degrees C!

I doubt there's much in the claim that PET will dissolve in methanol at STP.
Although it appears that decomposition at stp is not an issue, molecular 'stripping' may occur and the effect of course will depend on the size of the monomer (quoted in standard text, presumably) in relation to pixel pitch and size. An aged bootle of Eclipse for example may well degrade and deposit monomer, but the rate and the required ppm is likely to be unknown.

As a rule of thumb (my thumb) I would dispose of anything older than 5 years. Just seems like a good number.
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Old 24th April 2018
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Re: Dust!!!!

Why not just transfer it to a glass bottle?
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Old 24th April 2018
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Re: Dust!!!!

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Why not just transfer it to a glass bottle?
If you can find one of appropriate size with a reasonable airtight stopper, by all means. Make sure to thoroughly clean the container before use. Wash in soapy water, rinse, dry, then flush with isopropyl alcohol. Oh dear, there's half of the Eclipse gone already!
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  #28  
Old 24th April 2018
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Re: Dust!!!!

If you turn the power on whilst cleaning the sensor on M4/3 cameras the sensor will be locked in place securely. Turn the power off and it wobbles all over the place.

I've cleaned my E-M1 several times and my son's E-M5 once and it's quick and easy to do if the camera is turned on. I use the Eclipse fluid.

Steve
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Old 24th April 2018
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Re: Dust!!!!

Caveat to live cleaning. Be sure not to apply too much force to cause the stabilisation pain and suffering. Also be sure the shutter doesn’t close on the cleaning stick, eg an inadvertent shutter click. (Paul warned against shutter operation earlier in the thread.) Also fluid near live electrical stuff is another word of caution.
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