I'm pretty happy with the K20D at ISO 2500, without preforming heroic post processing. The K-7 should handle ISO 1600 with no problems.

On 8/31/2010 1:07 PM, Steven Desjardins wrote:
Thanks for the shots.  When needed, I would push the K10D to 800.  The
K7 should be at least that good, yes?  I am intrigued by Bruce's
comment.  We are now reaching the stage where digital will begin to
have capabilities that will change the way people shoot. HDR might
also that it they ever get it right.  My own wild prediction is that
eventually exposure will be a non-issue and will be a processed
property.  Maybe even focus.

On Tue, Aug 31, 2010 at 12:33 PM, paul stenquist
<[email protected]>  wrote:
On the other hand, if you plan to shoot in bad weather or if you work your 
cameras as hard as I do, you'll probably want the K7. While the K7 does begin 
to show some noise in exposures at ISOs above 400, the noise doesn't ramp up 
all that much at levels above 400. My photo for the Pentax show in Chicago was 
shot at ISO 3200 with the K7:
http://photo.net/photodb/photo?photo_id=9902961&size=lg

I've had reasonable success with the K7 at 6400:
http://photo.net/photodb/photo?photo_id=10541951&size=lg

And I regularly use it at ISO 800:
http://photo.net/photodb/photo?photo_id=11014855

Film grain never bothered me a lot, and a bit of digital noise isn't a problem 
for me or my clients. But I will be adding a K5 to the arsenal when it becomes 
available. My k7 is closing in on 30,000 frames, so it's time to send it to 
back-up mode.

Paul


On Aug 31, 2010, at 12:02 PM, Bruce Dayton wrote:

Funny thing about the low light question...before I got a K-x, I didn't shoot low 
light much without a tripod but that was really because my K20 and earlier cameras 
couldn't shoot low light.  Now that I have a K-x, my shooting techniques and style 
s have been changing due too the new capability.  So the K7 represents the best of 
shooting the old way and the       K-x represents the opportunity to do some new 
and exciting things.  For me at this stage, I would go for the K-x.  If you buy 
from B&H you have some time to return and exchange.  That would be ideal.  Get 
the K-x because it lets you try things you haven't done before.  If you find you 
aren't delighted with it you can return it and get the K7.

For me, at this point I never use my K20 anymore unless my daughter is using at 
the time I need it.  Given the choice, I always pick the K-x over the K20.
--
Sent from my Android phone with K-9 Mail.

"Dario Bonazza"<[email protected]>  wrote:

Steven Desjardins wrote:

I thought of that, but I'd like to buy a new body.  KEH has two K7 now
for $789 and $819 which is not much of a savings, and I don't think
I'd buy one off ebay, etc.

I do like your comment "But K-x has a sensor second to none."  I think
Canon and Nikon might contest that.  Of course, it could be a better
sensor than the K7.  I'm not one that too fussy about micro-artifacts
however.
I've used both the K-7 and the K-x and my advice is simple:
1) Do you shoot mainly in good/reasonable light, using ISO 100 to 400 and
add flash in low light? Go for the K-7, which is an overall better capable
camera for sure.
2) Do you shoot with available light? The K-x is far better for that. IMO,
all of the K-7 pluses put together cannot compensate for the huge difference
in image quality in favor of the K-x above ISO 400.

Whichever you choose now, it is likely after Photokina you'll want to jump
all feet on such camera and replace it with one of the new ones for a good
reason :-)

Dario


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