Sigma 50/50e manual Film Advance Switch, Built In Flash, Custom Functions

If the subject moves the focus follows.

Sometimes you want to focus on a particular distance and then recompose with your subject off center. You can do this by selecting a side AF point, or by autofocusing in One Shot mode and holding the shutter button half way down to keep that focus distance selected. You can't do this in AI Servo mode, but then you can't track a moving object in One Shot mode. They both have their advantages. Most people prefer to keep the camera in One Shot mode and changing it when they need to.

There is a middle position, the AI Focus mode that is the same as One Shot mode until the camera detects that the subject has moved closer or farther away. Then it automatically shifts into AI Servo mode. This is a good compromise, but there are times when it will shift into AI Servo mode when you don't want it to and then there are other times when you want it to but it doesn't react fast enough.

2.7 Film Advance Switch

The Film Advance switch is right under the Focus mode switch. It has two positions. Single Shot mode is the usual position and it will take one picture at a time. You have to raise your finger off the shutter button completely and then press it again to take another picture. In Continuous Advance mode the camera will continue to take pictures at 2.5 frames per second as long as you keep your finger pressed down and there is still film to burn. In Continuous Advance mode, and if you are also in AI Servo focus mode, there will be a slight delay between frames as the camera looks to see if it is still in focus and then readjusts as necessary. However if you were in Continuous Advance mode and One Shot focus mode the camera would lock onto a distance and keep it there throughout its continuous shooting spree.

2.8 Built In Flash

Just in front of the Focus Mode switch there is a button that when pressed will raise the built-in flash. To get the flash to go back down you just push it down. The built- in flash is fairly weak and it's also close enough to the lens to cause red eye in many situations. Its primary benefit is when you have to have flash and didn't bring along a real one with you, and also when you need fill flash outdoors. As long as your distance isn't too great and your aperture isn't too small, it will work.

2.9 Custom Functions

CF mode is used to set the eleven available Custom Functions. These are used to cus- tomize the camera to your particular shooting style and to change the way the camera works for a particular situation. To use them, turn the Command Dial to the CF po- sition, turn the Main Dial to select the custom function you want and then press the "*-cf" button to change its value.

Custom Functions only work in the non-PIC modes. The custom functions are:

1)Rewind Speed 0 = quiet, 1 = fast

2)Film leader 0 = rewind it in, 1 = leave it out

10