Originally posted by duetto96 Just wanted to say thanks to everyone for their advice and guidance on this problem. It remains unresolved and can only assume the problem lies within the camera itself. Your help and interest has been greatly appreciated.
David
David,
I also own a K-x and I have found that CIF is very temperamental.
These are the steps I do to make it work (I'm sorry if this is all obvious, but I'm a newbie and I try to not skip steps for now
):
1-Turn off camera and set new lens.
2-Turn on camera. Camera should ask for Focal Length, input the correct value (I think if you hit Cancel, it will default to the last one used)
3-The camera will ONLY work on Manual, Aperture Priority & Movie modes. Selecting any other mode will default to Aperture Priority.
4-Make sure you have set the camera body focusing mode to AF (That's the button on the left side by the lens base.)
5-Use the menu to set AF Mode to AF.S. AF.A works too! I guess the camera makes the best assumption and figures that you want Single Auto Focus.
6-There is NO need to change the AF Point setting. At least on my camera it defaults to Spot mode.
7-Use the menu to enable CIF. Go to the Custom sections (C icon) page 3, and set item 21 to a value of 2.
8-Compose and adjust exposure (I use the Green Button).
9-Press and hold the shutter while using the lens focus ring to get the subject in focus.
The camera WILL shoot when it thinks that the focus is right.
Now, that last point is the most important. I've noticed that my K-x is very sensitive to focus. Sometimes, when I try to take a second shot right on the same subject, the shutter will not work. On this situation I need to adjust the focus ring very slightly moving towards infinity and then back to focus, or just move the camera a bit forward and then back. This adjustment is very small, for example if I tilt my head a bit forward and then back, the CIF will fire.
I've been testing CIF on the last two days, with a M 120/2.8 prime and this has happened at different apertures, light conditions (early morning and night) and focusing distances.
I found this
post on using the debug feature to adjust the AF. I'm not sure if this could be a solution to our problem, maybe someone with more experience can clear things for us.