S3D Aerials Question

[Phil Bates]

I may have an opportunity to shoot helicopter aerials with 2 Reds set 6.3" apart. How close will I need to be to the subject in order to get the stereoscopic affect? What is the farthest away an object can be and still show some kind of slight effect?

The lenses will be Optimo 10:1 zooms. Will zooming in help with seeing the effect on distant objects? Would it be best to shoot everything as wide as possible?

Any problems I should anticipate or look for?

I realize that the IO is much more than the typical eye space, so I understand that the objects could appear smaller than normal.

Thanks,
Phil

[Peter Degerfeldt]

Hello Phil,

Go wider on both interocular and lens.
We shot this way 90 cm interocular with 24mm primes. Great :-)

blue skies/peter

[Phil Bates]

Hi Peter, unfortunately, 6.3" appears to be the maximum for this rig. If that is my limitation, what kind of distances will work?

Thanks
P

[Pedro Guimaraes]

Make anew plate.....(not that hard) we shot some helicopter aerials this year 7" stereobase......could of probably used alot more. We were limited by the tyler mid mount that we had.

[Eric Lange]

My impression of what you describe would be that everything would sort of split into two discernable depth planes, stuff that’s less than about 160 ft and stuff that is 160 ft plus set to an apparent infinity. That makes for pretty knarly stereo, like the other “dudes” are sayin,g wide angle, and big and bigger base separation/IOD.

What are you shooting (i.e what sort of terrain are you wanting to shoot and what is the desired effect that you aim to achieve)?

Cheers,

Eric

[Phil Bates]

Eric, I'll shoot whatever works with that particular IO distance. My guess is that low-level will be best, ocean, shoreline, forest, mountain ridges. All flying within 20ft or less of the objects.

I guess I am wondering if flying within 100ft of bridges, lighthouses, cranes or buildings will give enough of an effect to make those shots worth chasing.

Thanks,
Phil

[Phil Bates]

Make anew plate.....(not that hard) we shot some helicopter aerials this year 7" stereobase......could of probably used alot more. We were limited by the tyler mid mount that we had.

Pedro, I'd like to but I am limited by the gyrostabelized ball that will contain the two cameras. I've got to make the most of the cards I'm dealt...

Phil

[WesG]

Make anew plate.....(not that hard) we shot some helicopter aerials this year 7" stereobase......could of probably used alot more. We were limited by the tyler mid mount that we had.

Hi Pedro,

We are researching how we can shoot some 3D from a chopper and using a mid mount (continental) seems like a potentially cost effective option.
We have a basic bar allowing us to mount two cameras in parallel.
How did you go operating the mid mount with two cameras rigged?

Our bar will allow a large stereo base (approx 24") but wondering if we'll be able to operate the mid mount effectively.

I've also been looking at a stabilized nose mount, but unsure if I'll be able to raise the budget to make this happen.

Be great to hear your thoughts
Cheers
Wes

[Eric Lange]

Eric, I'll shoot whatever works with that particular IO distance. My guess is that low-level will be best, ocean, shoreline, forest, mountain ridges. All flying within 20ft or less of the objects.

I guess I am wondering if flying within 100ft of bridges, lighthouses, cranes or buildings will give enough of an effect to make those shots worth chasing.

Thanks,
Phil

What resolution and or format will the intended output be? Is this for big screen or small screen?

I might be able to crunch some numbers and come up with a cheesy anaglyph to "simulate" how the various depths might appear to be disposed. If you can fly within 20 to 100 ft of the subject then things might be more promising than initially supposed; I’m more used to stereographic aerial shots for terrain modeling/photogrammetry for government work (from higher altitudes, larger format and MUCH larger base separation/IOD).

Ta.

Eric


I’m sure Pedro might have a couple of stereograms lying around that show the disposition of parallaxes from 20ft to infinity for 25mm lens on a pair of REDONEs at 7" IOD ? ;)

[Pedro Guimaraes]

Hi Pedro,

We are researching how we can shoot some 3D from a chopper and using a mid mount (continental) seems like a potentially cost effective option.
We have a basic bar allowing us to mount two cameras in parallel.
How did you go operating the mid mount with two cameras rigged?

Our bar will allow a large stereo base (approx 24") but wondering if we'll be able to operate the mid mount effectively.

I've also been looking at a stabilized nose mount, but unsure if I'll be able to raise the budget to make this happen.

Be great to hear your thoughts
Cheers
Wes

email me and I send you some pics in private. 7" is max on tyler midmount.

A nose mount is far superior if you can afford it. Also lets you use much larger separation.