Drake
TPF Noob!
- Joined
- Nov 19, 2007
- Messages
- 684
- Reaction score
- 10
- Can others edit my Photos
- Photos NOT OK to edit
I was thinking what was the influence of using live view on the camera shutter count. It seems the camera uses the shutter a lot in LV, just to take one photo:
That's 4 full shutter cycles just to take one shot, 3 cycles if you use contrast detection AF or manual focusing for shooting one photo, and a minumum of two if you use contrast detection AF/MF and take more than just one shot.
I am curious if this is reflected in the shutter actuations counter. Most of the actuations are not used to take the actual exposure, but the shutter curtains are moving anyway. I know most of us don't use the LV mode all the time. I don't use it at all. But when you buy a used body, you don't really know how it was used. I am not saying the shutter counter could state 3 times the number of photos taken, but if it really doesn't take it into account, it's not accurate enough anymore. Something to think about.
- shutter opens when turning the LV mode on
- shutter closes to enable focusing (only when using phase detection), although this could be just the mirror flipping, but I think it still uses the shutter
- shutter opens again
- shutter closes when you press the shutter release
- shutter opens to start the exposure
- shutter closes to end the exposure
- shutter opens again to return to LV mode
- shutter closes when you leave the LV mode
That's 4 full shutter cycles just to take one shot, 3 cycles if you use contrast detection AF or manual focusing for shooting one photo, and a minumum of two if you use contrast detection AF/MF and take more than just one shot.
I am curious if this is reflected in the shutter actuations counter. Most of the actuations are not used to take the actual exposure, but the shutter curtains are moving anyway. I know most of us don't use the LV mode all the time. I don't use it at all. But when you buy a used body, you don't really know how it was used. I am not saying the shutter counter could state 3 times the number of photos taken, but if it really doesn't take it into account, it's not accurate enough anymore. Something to think about.