continuous shooting?

M

McNyat

Messages
493
Name
Ciaran
Edit My Images
Yes
Might be a silly question, but I've found that when using high speed continuous shooting the first shot is sometimes sharper that the rest that follow. Is it common that there would be slight vibration from firing off numerous bursts causing the shots to blur slightly?

Thanks
 
As already noted, you may need to change the AF settings to AI SERVO. You should have a AF button on the back of the camera, pressing it will cycle through the AF settings.

A quick explanation of AI SERVO from Wiki

AI servo is an auto focus mode found on Canon SLR cameras, although the same principle is used with Nikon cameras, known as "continuous focus".[10] Also referred to as focus tracking, it is used to track a subject as it moves around the frame, or toward and away from the camera. When in use, the lens will constantly maintain its focus on the subject, hence it is commonly used for sports and action photography. AI refers to artificial intelligence: algorithms that constantly predict where a subject is about to be based on its speed and acceleration data from the autofocus sensor.
 
Yes, it is set to ai servo. I have also tried to take pics of satic items and this is also showing the problem???????
 
When the mirror is in the up position the AF sensor can't operate, so if you are in continuous AF the camera has to "guess" the focusing, which can lead to shots OOF.
 
gblades said:
The mirror flips back down again between shots though.
Click to expand...

Sure it does, but depending on the camera settings (I'm not sure about Canon tho TBH they probably use different terms to what I will) if you have AF-C on release priority the camera will fire wether or not the subject is in focus (maintaining the FPS), if you set the camera on focus priority the camera will ensure the subject is in focus (often slowing down the FPS)

Low end bodies will generally AF pretty slowly, and if you are shooting at 5 FPS or so, it doesn't give the AF much chance to AF properly in the fractions of a second the mirror is down, hence it has to guess a little in continuous AF.
 
I've had a similar experience on my 7D, although not all the burst was OOF, so I thought it was probably my fault. I've just got a 5D3 and there's a menu setting so the first and subsequent photos can be set to either focus or fire preference.
 
You must log in or register to reply here.
Back
Top