Tv mode in K10d

[knyghtfall81]

Ot again to avoid creating another thread: To prevent hand-shake, say I shoot at 35mm, I should use a min shutter of 1/35 or 1/(35*1.5).

think the rule of thumb for film is the shutter speed for hand held is 1 / (focal length you are shooting at) seconds. Don't really think the crop factor affects, since its just a smaller image size without a change in the focal length. You have to increase the shutter speed accordingly only when you vary the focal length you're shooting at. From experience for digital in general u can increase this by 1, 2 stops (even w/o SR) and even more when you have SR.

 

[scorpioh]

I see. So the k10d is actually clever. I thk i'll stay in the auto EV comp mode. so at least I know if my shutter speed is acceptable. Thanks.

 

[fengwei]

Fengwei, try your K20D, i think it's the same.

Yes, you are right. If the light isn't bright enough, the aperture can't go any wider, then the Tv value can't go higher, unless you change the ISO to a higher value

Thanks for pointing this out.