On the Pentax K-5 IIs you can shoot in Sv(Sensitivity mode) and TAv(Auto sensitivity mode) as well as the other modes AV, TV, P, B & M. When I first got my camera about a year ago I didn't even bother learning how to use these modes. I just bypassed them and went directly to P or AV. The only time I used Sv was when I accidently turned the dial to this mode thinking I was on Av.
The other day I decided to read the manual to find out how these work(Sv & TAv) . I could understand TAv which is just another way of using Auto ISO. I worked at some shoots where the aperture and shutter speed were fixed, so Auto ISO was used due to the changing light conditions. Unfortunately, I was using a Canon camera and the Auto ISO was just horrible on those cameras. It seems to work a lot better on Pentax cameras, at least on my K-5 II, but I'm not sure .
What I'm trying to figure out, is why would anybody want to use Sv mode ? I'm guessing that under certain "creative" circumstances someone might want noise in the picture to get a certain look ? I try to keep my ISO at 800 or below so this mode is totally useless to me unless I'm missing something ?
Last edited by hjoseph7; 09-07-2015 at 06:35 AM.