"P" mode on T90

I just bought a T90 and have one question. When switching modes into

the "P" mode for either the wide or tele setting what effect does the

setting of P1, P2, or P3 have?

 

 

TIA,

Gary

Gary -- you can D/L a manual here http://tinyurl.com/66lvc .<P>Basically what the P's mean is the camera runs on program -- setting itself. On the Tele's the camera biases itself towards fast shutter speeds. On wides it tilts things for greater DOF.<P>Problem is that I like to be in control. I've owned a couple of T90's since 1986 and I've never used those settings.<P>Instead I'll run in Shutter Priority (TV) to enable me to choose a shutter speed that I know will prevent camera shake when I use long lenses or Aperture Priority (AV) so I can select a narrow aperture when I use wides.

Jim,

 

Thanks for the info. I had dl'ed a manual from Christian's site if I remeber correctly but the manual didn't go into great detail about this setting. Like you, I prefer to have as much control as possible.

 

G

I could go get my manual but that would require too much effort! As I recall, and we are going back to 1986 (last time I looked at the manual too) There are 3 programs for 'W'-wide and 3 for 'T'-tele. The P1 thru P3 are shifted more to each requirement. So, T-P3 will set a shutter speed higher than P2 which is higher than P1. In W-P3 will set a smaller aperture than P2 which is smaller than P1. You can also use the safety shift feature in Tv and Av to over-ride the normal programming at the extreme end of the settings. Handy when you lend the camera to someone who has no idea what they are doing! My camera spends 90% of the time in Tv, 9% in Manual Mode Tv, and 1% Av. I can't recall ever actually using it in stopped down mode but oddly enough I would not want to be without it in an emergency, and I have played with it a lot for fun - eeeh, I must be ill!

Gary,

 

Did you ever see a Zeiss Contaflex? The shutter speed ring and the aperture ring interlock. You release the aperture ring to set it, but when you let go, it locks to the shutter speed ring again. you can then turn them in unison through all the possible aperture and shutter speed combinations for that particular EV.

 

The T90 P modes do exactly the same thing. The meter will choose an exposure. As you rotate the input dial through the seven P steps, it runs through all seven combinations that will result in the proper exposure. The Tele end favors faster shutter speeds, the wide end smaller apertures.