Filters Sony Alpha

Filters Sony Alpha
I have a Sony Alpha A300 and I can not do motion blur to him?

the photos are totally overexposed even stops one second exposure two. My father recognized a couple of ND filters will stop this but I just wanted to check before you have bought. any idea how to prevent this from happening would be much appreciated. iso is, obviously, to 100 (the lowest) it two stops is the lowest you can go on the A300 also what ND filter would you go? you go to a ND8 motion blur of waterfalls / shock coast? or something else Thanks

You really need to go to a course and get this background material. Under any condition lighting only one level of light in the sensor that will give proper exposure. Let's say that a bright day when the opening is set at say f8, and the camera gives a meter reading of 1/400th of a second, you will be given f11 1/200th of a second. In the second setting donations that half of the light for twice as long exactly net result the same amount of light falling on the sensor. Want to shoot at 1 second or slower than in terms photgraphic is a long time, so opening neeeds to be small (f high number), but smaller opening may not be far enough away to get> 1 shot a second time with the light conditions as you find them. You two courses of action you can wait until the light level reaches the point where smaller opening will give you a shutter speed over 1 second or you can use ND (Neutral Density) filters, all these does not break the light reaching the sensor below. They are available in different powers of 2 stops to 8 stops, and you effect can stack to get more. On a clear day you will need the strongest, may be even more of one, on a dull cloudy day 2 stop may be all you need. Chris

Adobe Photoshop : Smart Filters Tutorial