Hey All, I've got a Nikon D90 that is giving me fits! The last two, three times I used it it seemed like it would not focus - on AF - and the shutter would not trigger. Push the button halfway to focus then all the way to take the pic. The last few times I used the camera it wanted to pick and choose when it would do the above noted functions. Did the same thing today for about 15 - 20 pics then stopped working all together.

It turns on OK but, will not focus or trigger the shutter. Even on MF it will not trigger.

Any ideas? Anything I could try myself?

If no where is a good place here in CM to get this thing looked at?

Thank you in advance for your replies!

At first I thought my reply was not applicable. I still think so, but decided to mention it anyway.

I have had a slightly similar problem with my Pentax K10 in auto focus. I leave it on center spot focus and find that, under certain circumstances I have not yet completely defined, it will too often refuse to focus and, therefore, refuse to take the picture.

Luckily for me, it goes away when I change subjects and backgrounds. But it is confusing because I usually can then come back to the original subject and identical compostion and take the picture.

Now that you have me thinking, I realize that when it first occurs, I do not try changing the focus zone to multi-point averaging or selected. I have a little more testing to do.

I really have not useful suggestion about your problem. just this lament showing you that others have some kind of a similar problem.

Peter

Hey Peter, What you describe is exactly what I thought was my problem, and maybe it is. I was having issues sometimes getting the camera to AF where I wanted it to instead of where it wanted to. I started futzing around with the focus settings and decided to go with, like you, center spot. It seems like a decent amount of time went by with no issues but then I started having the problem I first described.

Few days ago no matter what I pointed the camera at it would not focus or shoot. AF - MF didn't matter.

I think I will reset the focus point and see if that changes anything. I will report back here on what I find out. Probably in a day or two.

Your second and third paragraphs? What you describe there? I feel your pain brother. Been there, done that!

All right this thing just will not work.

Any suggestions as to where to go to get this fixed?

Well this may or may not help.

The other day I had a lot of problems with focus. Couldn't trigger shots and then could but all out of focus then couldn't. changed lenses a few times and then could take shot but out of focus or with one lens all OK.

had me worried that my beloved 200mm 2.8 was at fault.

Then I realised I had a few speks of dust on the mirror. Cleaned these off with a brush and hey presto! All good.

Might be worth a try.

Dust, eh? On the mirror you say? Sneaky little devil. OK, I'll check that out.

Thanks very much.