Seriuos help needed with photography?
I need some serious help please! Pictures uploaded is actual pixels.
This picture here,
shows a red spot. Every picture that I take, has this spot (and a few other smaller onse in different colours). What can it be? Is it my lens or my camera? It is taken with Nikon D90. Can it be the mirror that is dirty?
This one here,
show the 'brilliant' focus of my camera. 90% of my pictures looks like this. My shutterspeed is not too low, and ISO is not too high or low. F-stop in normally around 5.3. I shoot in Aperture Priority mostly, but when I find this problem, I switch to Auto (that I truly hate). Usually it helps, but these days, not anymore. I always say it looks like water painting - as if it smudged. This one uploaded is not the worst, some is bad, really bad!
What should I do? Is my lens or my camera the problem?
You have a dead pixel, run pixel mapping from your cameras menu and it will disappear, most sensors have a few dead pixels.
A red spot is normally a sensor issue (hot spot).It is not the mirror, as the mirror flips up out of the way when you press the shutter button.
The best thing to do is contact Nikon at 1-800-NIKON-UX (1-800-645-6689). The camera may need to go in for servicing either to Nikon or to a local authorized repair center.
The second one is normal,. Just fleckless as far as I can see. The dot on the first one could be a sensor dot; clean it properly and see if disappears. Properly means with sensor cleaning brushes, liquids and clothes, not with regular ones
I have the same issue with my old Rebel XSi… It's a dead/stuck pixel on the sensor. Not sure what you could do about it. I barely ever use my XSi so I haven't bothered looking into a fix (I use a 5DMkII and a T1i mostly).
It's not a lens problem, it's a sensor problem.
You could try this: http://cheesycam.com/fixing-random-hot-or-dead-pixels/
Otherwise, you'll have to fix the dot in post processing.
The red spot is a dead or sometimes called "hot" pixel. I just do a quick and easy clone click in Photoshop to cover it. I have not used pixel mapping, but that should work for you to eliminate it.
No one has addressed your focus problem. Quite simply, it looks to me like you are just too close to your subject. All lenses have a minimum focus distance. It may be a fraction of an inch with a very expensive true macro lens, or as much as a couple of feet with a lower quality "kit" lens. You do not state what lens is on your camera. The booklet that came with the lens will specify the minimum focus distance for your lens. You should also be able to find it on the Nikon website or on the lens spec page at B-H.
You do not say how you are focusing? If your problem is not because you are too close to your subject, then have you tried MANUALLY focusing? Whether in Aperture priority or auto mode has no effect on the auto focus function. Do you know how to select auto focus POINTS so YOU can precisely place one of these points where you want focus to be instead of letting the camera choose where it wants to focus? There's a major difference between auto focus and auto focus point selection. You NEVER want the camera to automatically select the focus POINT. It will in the majority of times be wrong.
There may be a problem with your camera or lens, but from reading your question and seeing the examples, I frankly feel it is operator error.