Temporary problem with a new 50mm 1.4g lens

[Thronsen]

Hi there-

A couple weeks ago I bought a new 50mm 1.4g for my D90. Absolutely love it, and it has been working perfectly.

Today though there was a problem. It was working fine in the morning. I went home and recharged the battery. When I tried to take more pictures, I couldnt half press the shutter button, and it wouldnt focus. Basically I would just graze the shutter button and it would instantly take a picture at the focus it was already on (presumably from my last shot that morning).

I eventually fixed it, by taking the lens off, waiting a minute then putting it on again (all those years in college not wasted, my parents are so proud). But is this something I should worry about? If the fix is that easy, I dont care that much. Im more worried that it is indicative of bigger problems.

Also, a more general question. When you get a new lens, are there any tests you do to make sure it is working properly? Kick the tires, etc. I took pictures, and they looked good, is that about the extent of any 'testing' or is there something more intense?

Thanks.

[Rooz]

does the same thing happen for any other of your lens' ? if its a one off i wouldnt worry too much about it, couldve just been some dirty contact points. i;d be more inclined to be concerned if it happened regualrly with that lens. the issue your describing to me sounds like its more of a body malfunction. (shutter button).

RE: testing, the only thing to do really is to do a focus test using a test chart. other than that, i dont know of anything else.

[Thronsen]

Hey Rooz-

Thanks alot for your reply. Ive had the D90 for about 4 months and a few k pictures. This is the first time its happened. So might very well be a one off. Just wanted to make sure it wasnt some creeping doom problem.

Thanks again.

[K1W1]

I had the same issue once or twice with a Sigma 70-300. I just put it down to the lens not making contact correctly with the electrical connections on the camera. Maybe the Sigma lenses don't lock as firmly in place as Nikon ones do or something.

[XaiLo]

Those darn electrical signals, when they get to miss behaving... I tell ya! What's happened with me a couple of times is I either thought I seated the lens properly, but did not or I unwittingly depress the release button and the lense shifts, mostly happened with my long lens grabbing the wrong side while taking it out of the camera bag.. The seating issue was because I constantly hold down the release button while mounting and dismounting. Now I just give it an extra light twist when I release the button. Not saying that any of these are the cause but I've learned to try and curb bad habits. Especially the ones that you're not even thinking about.