Originally posted by pent axe After many trials i still got some lens flare on the vase that was using and it was slightly out of focus (one of the problems with my K-5 that is a little annoying to over-come by constantly manually focusing), but none the less I kind of like the overall effect; regardless of it not being razor sharp.
The bright vertical line on the vase at the bottom of the photo isn't lens flare, it's a specular reflection (the direct reflection of your light source off the glass). If you want a photo of just the dropped object & water, get a small, rectangular fish tank and place your lights to the sides with snoots or black cardboard directing the light to only hit the falling object & the splash. This will make the glass essentially invisible. If you want the glass to be part of the photo, you do want to control the specular reflections to better show the shape of the glass. In this case, you might check out the book Light Science & Magic: An Introduction to Photographic Lighting, which has a chapter on lighting glass objects.
Having to manual focus isn't a k-5 defect here, I'd doubt any camera could AF on a small falling object quickly enough, especially when it has a layer of glass and water droplets to contend with. Manual focus is the way to go, and being consistent with your drop point will help greatly. A simple approach is to suspend a piece of string from the ceiling and have your partner always drop it from the bottom of the piece of string.
In lieu of a laser trigger type device to trip the shutter, you might try using a simple IR remote to trigger the camera. This way you can do the dropping and triggering all by yourself. I find this makes the timing easier and doesn't test the patience of anyone but yourself
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Keep it up, and I look forward to the next round!