Hi, I've gotten my pentax k-x from SLR revol along with a Sigma 17-70mm f/2.8-4 lens. ![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Had some test shots with it, but I have some newbie questions here.
I shoot in Aperture priority mode but the aperture displayed on the screen only starts with f/4.0 and above. Why is this so? Shouldn't I be adjusting from 2.8 - 4 instead?
Also, are there any tips on how to reduce graininess under low-light condition? (See third photo below)
Test shots:
Had some test shots with it, but I have some newbie questions here.
I shoot in Aperture priority mode but the aperture displayed on the screen only starts with f/4.0 and above. Why is this so? Shouldn't I be adjusting from 2.8 - 4 instead?
Also, are there any tips on how to reduce graininess under low-light condition? (See third photo below)
Test shots:
![test-009.png](/proxy.php?image=http%3A%2F%2Flh3.ggpht.com%2F_7n3-bp2BZ9M%2FTIE44dd8_KI%2FAAAAAAAAADc%2FdfMQm_Os4_s%2Fs912%2Ftest-009.png&hash=809e863dfc7fbcb609bd5c160ef80b0d)
![test-019.png](/proxy.php?image=http%3A%2F%2Flh5.ggpht.com%2F_7n3-bp2BZ9M%2FTIE44pDlXJI%2FAAAAAAAAADg%2FzQq0bLFOTvg%2Fs912%2Ftest-019.png&hash=6f17f923a8d0b9f746e0fe81f602d1c0)
![test-029.png](/proxy.php?image=http%3A%2F%2Flh3.ggpht.com%2F_7n3-bp2BZ9M%2FTIE4471CpjI%2FAAAAAAAAADk%2FFn1dHdnguXw%2Fs912%2Ftest-029.png&hash=828161f178ccd2a1100232d66062845e)