A senor will always display some noise because but at iso100 the noise will only be really visible when viewing at or over 100% zoom and at the darker areas, this with CCD sensor a CMOS sensor I would expect to show more noise, certainly with the K-X because that's extended ISO.

There is a glass screen/filter infront of the sensor so the dirt/dust is on that and never on the sensor, so in a way you don't clean the sensor but the filter.

The 645D of course
I don't think there is much room between the K7 and the K-X, because of the dropped price of the older K-7 and the new price of a new camera placed below the K-7 might even be more expensive then the K-7 so... I think not, and replacement of one of the two is more likely but keep the older model running for longer at a reduced price maybe?

I know what you mean Adwb.
My prints match my screen quite well before the calibration but the calibration made my screen a bit warmer and less dark so I ain't sure how the prints will match now.

@Will, I've just calibrated the LCD tv in the living room.
You use a DVD with test images and by the controls the TV provide you take meterings and you manualy need to change those settings till you hit the mark. For every test it takes around 7 steps.
This was with the Sypder3 TV don't know if other brands provide something like this but i'm sure you might be able to find a 3rd party software for it.

Good luck, there is also a Samsung version of the AF360 called the Samsung SEF-36.
Also any P-TTL flash should give you uniformity regardless the flash power it has because the metering is done with the camera, it simply means a more powerful flash has more scope.

Pentax lenses of course, have you seen those limited lenses, if you love primes you don't want anything else

Handling and in body SR are the things for me, with Pentax you would never need to go into the menu while shooting besides the FN menu which is a very simple quick menu and you would miss that with other brands.

But you can use a flashgun as a small studio flash, it's called strobist and that's the way to go I think unless you need the power of a studio flash or don't want to spend a lot of money because a flashgun is quite expensive.

If you want to keep using the P-TTL then you will need one of these flash link

If you're happy just to use manual flash mode then you can buy basicly every secondhand Pentax, Nikon or Canon flash.
The lumopro and the Yong Nuo are very cheap new flashes, you can find the Yong Yue YN460II on Ebay the Lumopro LP120 or LP160 are a bit harder to find but this are their websites.
http://www.lumopro.com/LP120.html
http://www.gadgetinfinity.com/product.php?productid=17379&cat=256&page=2

And I advice you to use trigers with those, cactus v4 set cost you only €40

[quote:3496ace15f="ReklawyksEkulso to be clear, my me super lens can be use for my soon to be *i hope so* k-x and vice viersa?[/quote]Yes and no, DA lenses give a smaller view and will not expose the whole film properly.
here is a guide http://www.mosphotos.com/PentaxLensCompatibility.html

huh what do you mean with 0.1?

P-TTL is automatic mode the same as Av basically on your camera.
Av use EV composition the same way as with P-TTL for flash.

Manual mode does not give you more power, the same as you don't get a wider aperture when you use the camera in manual mode but you do have more control over it.

If you plan on using manual for your flash then I wouldn't buy an AF540 flash but I would get a cheap secondhand flash or a yungyou / lumopro or something like that, they don't have P-TTL only just manual mode but if that's all you use.
If you go that route it's best to get some cheap wireless triggers like the Cactus v4, with those you can even use Nikon or Canon flashes without a problem.

Are you sure it's the lens, the shake reduction in the camera can make a rattling sound you see.

Thank you all and good luck George

Thank you Al.
I still have an option at Fokker but it's a bit different then what I'm studying.
I'm trained to be an aircraft maintenance engineer Part 66 B1 for those who know the codes so that's something else then manufacturing, although a place at Royals Royce doesn't sound too bad

Thank you, Iqbal (is that your real name?) in what kind of sector are you studying?

Fill me in Tony, what does that mean?