Carlos E.R. wrote:
On 03/02/2019 14.20, Savageduck wrote:
Savageduck wrote:
Alfred Molon wrote:
Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/

The blobs at the top left are the most visible ones, but
there actually are dust blobs across the entire frame.
And apparently the photographer wasan't even aware of
the dust, as the blobs are on all or almost all images.

Yup!
The dust is very conspicuous, and is going to need some major fixing in
post. That sensor is in dire need of cleaning, and the photographer should
have taken an emergency cleaning kit with him on that trip. When you know
that you are going to be in an environment with wind, dust, and sand, there
is no excuse for not being prepared. At a minimum a lot of care should be
taken with lens changes.

That assumes he knows how to use that kit (I don't). Maybe he takes the
camera to a shop to be cleaned by a professional back home that knows
how to do it, and he wouldn't dare try to do it himself, even less on a
trip.


If he does not know how to go about cleaning the sensor on a DSLR, or MILC,
he, and anybody who owns one should invest in the basic tools, correct size
swabs, PEC pad, a Giottos Rocket, a bottle of Eclipse Fluid, and a
magnifier with some sort of illuminator.

Then make the effort to learn how to go about cleaning a sensor, even on
the road away from home. Especially if one is in an environment where dust
contamination is likely.

I had no idea about dust, and sensor cleaning until I got my first DSLR, a
Nikon D70. I learned very quickly.


Also, I believe the evidence that he is either oblivious to the problem, or
just doesn't care is demonstrated by his posting of all those contaminated
photographs to Flickr with no effort to fix anything.

Well, maybe the photos themselves are important (to him) and he can not
go back to repeat them. I have photos like that, with errors, but they
are important to me.

If they were important to him he should have taken care when producing
them. He could certainly have cleaned up the spots on the images with post
processing before publishing them in Flickr.

What camera do you shoot?

If you have photos that are important to you, but have "errors", do
whatever you can to fix those errors in post. That is why editing tools
exist.


--
Regards,
Savageduck