I recently did a shoot of a baby and my 6 year old son, and I got some fantastic shots that were super sharp. I then did another shoot of a 6 year old and toddler and every single photo was slightly blurry. I used the same lens on both shoots - canon 100mm macro 2.8F.
Can anyone provide any possible reasons for this? I am a little perplexed as to why every single photo (about 300) would have the same slight blur. I only used Av and changed the setting throughout the shoot along with the ISO. We also changed locations and therefore lighting conditions. I have photos really close up of the toddler's face and also from about 10 metres away. And I used AF with the central focal point only (so I could focus and recompose before taking the photo).
I don't know what focus setting the lens was on for the first shoot, but I know it was on 0.31 to infinity for the second. Could this have an impact?
The other thing is that I accidentally deleted the photos when trying to import them onto my iPad (stupid iPad!!), but my husband was able to recover them for me. I can't see why this would matter, but could this have impacted the photos?
I'm very confused, although I am still learning about photography, so any assistance would be very much appreciated.
Oh and I cleaned the lens before I used it.