U-Fly Cam/Steadicam with 17-40L vs 17-55 IS (will IS help)

[jdbatino]

Hi,

videomaking noob here

For a 7D + steadicam/u-fly cam setup , will having Image Stabilizer on the lens make it more effective?
Or will the difference be minimal compared to a non IS lens. Lets say we set it to wide end - 17mm.

A 17-55 IS vs 17-40L is usually a no brainer choice for a 7D, but I also have a 5d2 - so a 17-40L would be nice as well.

Or maybe, I should just get 17-40L plus a kit lens 18-55 IS for the steadicam/u-fly cam shots ? ;p I assume, one would set a narrow aperture for those types of shots anyway.

 

[jdbatino]

i should have researched more.

just found my answer. apparently,IS has to be turned off. Juts like when using a tripod.

But any other opinions are welcome

 

[jasonjoseph]

what are u shooting?

if you're shooting weddings indoor in a ballroom, the L lens speed will be very helpful.

 

[roofies]

actually..the 17-40 is a stop slower than the 17-55.

 

[jasonjoseph]

i stand corrected.

but L lens just look alot more filmic then kit lens, the kit lens we have has alot of chromatic aberration.

 

[roofies]

the 17-55 is not a kit lens, its a constant aperture F2.8 IS USM lens. And many claim that the glass elements used are of L quality and the image produced is on par if not better than some Ls.

The only reason i wouldnt want to use this lens on a flown camera would be because of its extending front element when you zoom. You might end up having to rebalance your steadicam everytime you change your focal length with this lens.

However on the 17-40 F4L, though its one stop slower, the physical glass elements move internally when you zoom, leaving the front of the lens as it is with no change in over all length of the lens everytime you change focal lengths. You might still have to rebalance your rig, but the changes and dynamics are not as drastic as compared to a lens with a moving front element.

 

[briansio]

IS does makes a huge different if you're using handheld video.

things to consider:
1. Wide angle will have less lens shaking effect comparing to telephoto range, such as 50mm above, usually IS on wideangle is really not that obvious even if you're using handheld. 17-24mm is consider wide, anything above that will vary from person to person.
2. If you're using flycam, you will need to test it both with IS and non-IS there's no fix setting that you shud use, some hands might be a bit shaky than others, IS will be helpful even under flycam situation, if your hand is stable enough, then turn it off, so the image doesnt try to counter balance the shake itself to create unwanted distortion.

for your situation:
For a 7D + steadicam/u-fly cam setup , will having Image Stabilizer on the lens make it more effective?
Or will the difference be minimal compared to a non IS lens. Lets say we set it to wide end - 17mm.

the difference is very minimal and you can barely notice it, unless your hand really is shaky enough to cause flycam to have spiky footage =S that's pretty amazing to achieve especially you're at a 17mm wide angle view, i would presume you had too much porno last night and cause your hand to malfunction and needed the IS function on Flycam with a 17mm view.