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Cal

Panoramic shots Underwater

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I understand that Sam, but it is still shooting multiple sequential frames and combining them through software in camera. What Cal is looking for is capturing an image where there is no time difference between different parts of the panorama, hence one panoramic image captured at the same moment.

Cal, this gives me an idea - what if you loan or rent two or more D90 with housing setups and set them up radially, and then rig up a trigger to fire them all simultaneuosly. Then if you combine the images with software you will have all images taken at the same time.

I've a suspicion that you will need substantial overlap due to corner problems and distortion induced by the dome port even if you could get hold of, and align, several housings. I'd like to watch this being done though :) .

The obvious answer is something like a housed Seitz Roundshot but getting hold of a housing might be tricky (see http://www.teamworkphoto.com/index.php?mai...oducts_id=12056 - it always worries me when it says 'call for price' and on the manufacturer's site its around €20k).

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Thanks for all the responses!

 

Loftus - Interesting idea. Probably a little to hard to handle though. Getting them machined up so they triggered at the same time would be hard but once it was done it would be pretty cool.

 

I think i'll just see about tracking down a 5d mk 2 in a housing and cropping.

 

I wanted to steer away from cropping as I want the best possible final image but it seems like the only way to do it.......

 

Cal

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I think i'll just see about tracking down a 5d mk 2 in a housing and cropping.

Not sure what you mean, are you just going to take a wide angle image and crop the vertical so it looks like a panorama, or are you planning a true panorama? Cropping a high MP image will not give you a true panorama. I think you are better off going the stitching route if you are really planning a true panorama

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A true panoramic shot would be ideal of course but I need to shoot a single exposure and therefor i can't stitch . So I figure a high mp camera and crop to appear like a pano is the best option. Basically I'll be shooting in shallow water with lots of light dapples and stitching wont

Be able to align the light rays exactly.

 

So my options are - get a medium format film camera and crop , high mp (5dmkII or phase one etc) and crop or attempt to stitch with a high quality pano head tripod which could get messy as I want to print these large

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Cal,

 

I took the shot below in high current hand held. It is three shots stitched in CS5. I was told by some extremely experienced photographers before I tried it, that it couldn't be done. "Fish move" I seem to remember was one quote.

 

4199773908_ff87754048.jpg

 

I would suggest you give it a go first and see how it goes. For some reason CS5 doesn't always stitch, probably due to the distortion from the fisheye, but keeping some sort of horizontal line in the frame helps, so for shallow work, with a "horizon" where the reef meets sea, it might be just fine. Shoot lots of data to process and then spend a lot of time in front of the computer :D One of them will work out. Try to overlap about 20-30% as too much overlap with a fisheye lens seems to really confuse CS5. I have done this quite a few times and it works. Wrecks are really good for this, but this reef scene seems to prove to me you can't see the join, but my eyes are rubbish anyway so it's probably there and I can't see it ;)

 

Good luck

 

Julian

Edited by JACohen

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Shoot lots of data to process and then spend a lot of time in front of the computer :D One of them will work out.

 

I second to this!

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To pick up where Loftus left, using two housings (or more) with a slight overlap and with identical prime lenses/port then triggering at the same moment via a cable release, I remember helping some one with a similar project, the idea was to trigger multiple camera at the same exact moment, it was dome by daisy linking them together (anyone remember SCSI chains links :D ) it would need rewiring of the bulkhead and I would recommend using Ikelite cord and bulkhead since both side are identical and that will make linking all of them much easier.

post-1676-1291125654.jpg

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Never let anyone tell you that something's not possible, especially if they haven't tried it themselves! Great shot Julian!

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Loftus - Interesting idea. Probably a little to hard to handle though. Getting them machined up so they triggered at the same time would be hard but once it was done it would be pretty cool.

 

Have you seen this, with 50 Canon DSLRs linked in an array? You are right, it does not look easy :dancing:

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loftus,

 

Here is quote from a review;

Just press the shutter button and sweep the camera from side to side. The NEX-5 and NEX-3 shoot a high-speed burst of frames that are automatically

combined inside the camera to create a seamless panoramic still image containing depth information. Sweep Panoramas can be enjoyed in 3D when

the camera is connected to your 3D BRAVIA or any standards-compatible 3D TV.

 

Just simply, press the shutter once & sweep it until it stop bursting while you are holding the camera in normal way and it produce decent panoramic picture.

There are many good sample pictures if you search 'nex-5 panorama' in google. Quality of picture is good as it has same size sensor as Nikon DX sensor.

 

Sam

 

 

hey guys

just thought this worth sharing

http://www.deepshots.co.uk/2010/12/nautica...water-panorama/

 

cheers

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Not top of the line quality I'm afraid. I can see the stitches even on this low resolution file.

 

Cheers

Karel

 

that's the thing

the panoramic feature is useful for taking landscape pics,

in other words, when nothing is moving.

other than that, it pretty much sucked.

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So I started this thread a while back and have been brooding over the idea for a while.

 

 

 

Just to recap - I want to shoot a SINGLE image and make a panorama out of it similiar to Ken Duncans style of photography. The reason I want a single image is because I will be shooting in shallow water with lots of dappled light rays. I need these rays to be perfectly aligned as i'm printing it large therefor stitching wont work as the lightrays get slightly distorted or jumbled.

 

So hows does this sound - I'll use a 35mm Nikonos V with 15mm or 12mm lens and then DRUM scan the negative at a few thousand dpi or so which will render a huge file (200mb or so). Can I then crop this file to produce a Panorama at 1m or larger?

 

I'm a film newb so please add any other thoughts or comments etc. I'm here to learn!

 

Cheers!

 

Cal

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Hi Cal,

 

As far as I can tell that will work perfectly. You might be interested to know that I have printed at over a meter in size from a 60mb TIFF file produced by saving a .NEF file from a Nikon D3 that was processed in Photoshop with no discernible loss of quality, so you should be able to do it with a digital camera if you so desire.

 

Cheers

 

Julian

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Cal, mate you are trying way too hard.

 

There is no way that, whatever scan resolution you use, will a scan off a single 24x36mm frame off a roll of 35mm film be a better result than a +/- 20MP raw capture available from a FF 24x36mm DSLR.

 

And can you please, please stop calling them Ken Duncan style panoramas. As has been discussed earlier on the thread, even the almighty Ken Duncan uses different techniques to make his panos.

 

You will not find much better advice than is available to you when you re-read your own Topic ;)

 

cheers

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Thanks guys!

 

"Cal, mate you are trying way too hard. " - No I'm really not ...........It was a just a question..... and a pretty legit question I think.

 

"

There is no way that, whatever scan resolution you use, will a scan off a single 24x36mm frame off a roll of 35mm film be a better result than a +/- 20MP raw capture available from a FF 24x36mm DSLR. "

 

I don't have $10000 to spend on housing a 20mp camera with a quality wide angle lens. I have a 12mp camera (it still rocks tho!). I think your right about simply cropping a 20mb file and if I could, I would in a heartbeat. I figured that scanning the 35mm would give me something close to a 20mp cameras resolution but I just found out how cost prohibitive drum scanning is (around $70 a shot). However I can get a decent nikonos setup with a wide angle lens off ebay for around $500. Hence the reason I asked the question in the first place.

 

Ah well - back to the drawing board ;)

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Film does not have infinite DPI, nor does any lens.

 

You cannot squeeze more out of it, than is there.

 

But a 1 meter print isn't so big is it??

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Pete Rowlands (UWP number 34) has put some hand-held stitched panoramas into the magazine. It seems to work. I would guess that the same principles apply as above the water and a rectilinear lens/port combination (big dome, 35mm focal length on a cropped sensor, 50mm on a full frame, a tripod and rotation about the nodal point) would work best. I've not dared it beneath the waves, but this was shot hand-held last month returning from the Shetland Isles and stitched from 8 images in Hugin with manually chosen control points:

 

 

post-4522-1310823218.jpg

 

 

It's more challenging to make panoramic shots directly, of course, but is it necessary, except for a rapidly moving subject? The waves here stitched quite well, probably because they have a regular pattern. It might be worth experimenting with dappled reflections because they also have a mathematical pattern as caustic curves and might stitch together with less difficulty than is anticipated...

 

Tim

 

:huh:

Edited by tdpriest

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" It might be worth experimenting with dappled reflections because they also have a mathematical pattern as caustic curves and might stitch together with less difficulty than is anticipated..."

 

Thats a very good point!

 

I'll have to give it a few more shots.

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