With some comments on the UV filter topic it makes me wander if I'm the only one who handle lenses like I do...

For long storage all the lens caps or on the lens but when I'm photographing and switching lenses the only cap that gets back on the lens before going in the bag is the rear lens cap and I just "throw" the lens in the big compartment where the camera was so that I can easily grab it again when I want to switch back.

How do you handle your lenses when shooting?

You're the one going on about it, I'm just trying to make myself be understood
Yeah lets move on

It might be a glitch, I've had blank or green photos once and after turning it on and off it works like it should, it might be the same thing.

As for the flash you already said this yourself.
It should not matter if you've the flash on Wireless or not with a trigger.
On wireless it will fire when it gets a "trigger" or when he gets the wireless signal.
When you set it on normal it will only be triggered by the "trigger" if you get what I mean.

Okay okay
I wasn't clear.

You said this:
Since my English isn't native and I might not be able to catch everything I'm under the impression you're saying here with the words "it was most unfortunate and there was no filter on" that you made the assumption that a filter would have make a difference in your story.

Basically all you can do is make assumptions because you can't retest it under precisely the same conditions so you can't know if an filter would have make a difference or not.

The rest is already said in my other comments, I hope it's clear what I'm trying to say

Yes I agree but that's not my point.

It's seems that you're making the assumption with your story that the lens would have survived the fall if it had an UV filter.
I'm just saying that I'm very sceptical that an UV filter would have make a difference when you let a lens fall.
I could have read your story wrong and my apologies for that if that happened but still the core stays the same what I'm trying to say.

I'm not trying to discuss if you should or should not use a lens filter for protection, that's up to you to make like you said.

Technoidiot the story you were telling about the lens falling read to me as a reason why you use an UV filter.
It just so happen that Technoblurb has a story of his lens falling with an UV filter and it didn't do him any good.
That's why I'm trying to say that an UV filter will not protect your lens if it falls.

I hope you see the connection now, that I'm trying to make

Like you said if all else fails that's on option, wait till a Tuesday and I might have an answer for you if it truly works or not.

About the metal ring getting tighter is not true, like you said it shrinks so the diameter is getting very slightly smaller, it could be just enough to get it loose.

I would say, install the firmware again and see if that change a thing.

I can't see why this would be shutter related either, flash is 1/10.000 of a sec so it would leave a clearly definable edge like John says and not such a graduated darkening.

yeah don't know about the hotshoe, with the lower end models they are clear metal I believe, or at least with the K-X that is.


P-TTL is not known for his consistency and is sensitive for reflections, you might want to try spot-metering on the camera and see if it behaves a bit better.

But what you're saying is quite strange though because I've read quite some posts that users found that P-TTL was improved with the K-7.

Is the silence a sign that nobody knows?
I'll contact Pentax to see what they can do