Frame rate to capture bullet?
Posted 08 February 2011 - 10:22 PM
Posted 08 February 2011 - 11:17 PM
Posted 09 February 2011 - 11:43 AM
Posted 09 February 2011 - 11:51 AM
I can tell you that I think your numbers are probably way too low. For most work we find that a frame rate closer to 30,000fps gets the imagery people are looking for. I've even seen 1,000,000fps bullet hit material, which looks way cool.
We have the Phantom v12.1, which can shoot incredibly fast frame rates at HD resolutions. Likely your best bet.
Posted 02 March 2011 - 04:25 AM
You will probably need several tests before choosing the right speed for your specific needs, depending on bullet type/speed (pistol or rifle) and the amount of powder, available lights or sunshine, required resolution, framing (super-close-ups need higher frame rate), etc.
For certain type of bullets (980m/s or more) even 120 000 fps might still not be enough... Up to about 100 000 fps sunlight can provide you with nice even (and flicker free ) light source. For higher speed you might need big mirrors (curved/parabolic mirrors are better, as it can concentrate the beam).
If you are aware about the exact camera trigger moment, you can use a time machine: http://www.bmumford....to/camctlr.html
If color image is not a must, you can also have a look into different black&white high-speed camera models. Here is an example of bullets captured up to 1 million fps:
My reply came a bit late... but hope is still helping.
Diana - Phantom technician