Alex Mason
November 11th, 2007, 11:22 AM
Hey guys, first post here so im not sure im entirely in the right zone but here goes.
i got directed here by a guy over anandtech after asking if anyone there is a SteadiCam Merlin Operator or a Glidecam 2000/4000 pro operator.
I am doing a project at uni which requires me to build a device like those above, but i want to compare its effectiveness to 3 other main stabilization methods
OIS - Canon OS, Nikon VR, Panasonic Mega OIS
CCD-Shift - Sony Super Steady Shot
EIS - 2D3 SteadyMove Pro, ProDAD Mercalli Etc
what im after really is just info on how these work, particularly EIS methods becuase im sure theres tons out there. i know canons OIS uses a wierd gel like material sandwiched between two lenses which then allows those lenses to be pushed together or apart or whatever. From patents Nikons system looks like it has a moveable optic. CCD shift is pretty self explanatory also and i presume all these use mini-gyros or accelerometers to detect movement.
what im having trouble finding really, is quantifiable performance numbers.
it seems pretty tricky to quantify the amount of shake and i cant really describe their performance as "allowing you to shoot x - stops lower" because video cameras arent digital still cameras. i guess shake could be accounted for as milli-radians per second or something but then again a shaking motion doesnt have to be a rotational one, it can be linear.
also if anyone here operates a hand held stabilizer or has some advice about designign one, i would like to hear from you. theyre pretty simple devices on the face of it but they do have their complexities.
Thanks guys! much apprecitated!
i got directed here by a guy over anandtech after asking if anyone there is a SteadiCam Merlin Operator or a Glidecam 2000/4000 pro operator.
I am doing a project at uni which requires me to build a device like those above, but i want to compare its effectiveness to 3 other main stabilization methods
OIS - Canon OS, Nikon VR, Panasonic Mega OIS
CCD-Shift - Sony Super Steady Shot
EIS - 2D3 SteadyMove Pro, ProDAD Mercalli Etc
what im after really is just info on how these work, particularly EIS methods becuase im sure theres tons out there. i know canons OIS uses a wierd gel like material sandwiched between two lenses which then allows those lenses to be pushed together or apart or whatever. From patents Nikons system looks like it has a moveable optic. CCD shift is pretty self explanatory also and i presume all these use mini-gyros or accelerometers to detect movement.
what im having trouble finding really, is quantifiable performance numbers.
it seems pretty tricky to quantify the amount of shake and i cant really describe their performance as "allowing you to shoot x - stops lower" because video cameras arent digital still cameras. i guess shake could be accounted for as milli-radians per second or something but then again a shaking motion doesnt have to be a rotational one, it can be linear.
also if anyone here operates a hand held stabilizer or has some advice about designign one, i would like to hear from you. theyre pretty simple devices on the face of it but they do have their complexities.
Thanks guys! much apprecitated!