[raider]

I just received my Vivitar 2x MC PK-A TC today and I have tried the FA50/1.4 on the TC. I have since then set the SR to 100mm and "AE-L button on M exposure" to "Tv Shift". I also set the aperture on my FA50 to 1.4. Set the AF/MF lever to MF.

Now if I set my k100D on Av mode, I can see that the metering is working as the Tv value keep changing in response to various lighting level. If I press the AE-L button, the exposure value will be locked.

Now if I set my k100D on M mode, by pressing the AE-L button, I can hear that the shutter of my FA50 is moving and the Tv value then set according to the lighting level. So I guess metering is working also.

Several questions:

1. If I snap a picture either in Av or M mode, the F-stop information is always recorded as F_ _ _ in the digital preview. Is this how it is?

2. Should I always leave the aperture on the FA50 as 1.4 all the time?

3. What should I set the settings on my 360FGZ flash? Currently I am on Auto mode, ISO200 and f2.8. If I set the k100D in Av mode, I find that I just cannot adjust the shutter speed as it is locked to 1/180sec permanently.

4. If I set the k100D in M mode and the flash in auto mode, pressing the AE-L button will set the shutter speed but the shutter speed is no different whether the flash is switched on or not. Is this right?

Really am not good at this. Appreciate some help to clear things up.

Thanks