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Aerial Photography and Video > Need Help With Aerial Spherical Please
 
 
talk the torque
Senior Heliman
Location: SA

Hi guys

From my previous post I'm still trying to find out if each image is 3MP, would that be enough for really decent sphericals? As soon as I set my S7000 for continous mode its sets the resolution to 3MP

My next question is what should I charge a client for a spherical? Compared to a still shoot, that way I will convert it into my currency for a basic idea

My pano rig is ready and waiting for its first test
05-27-2008 10:21 PM
 
 
aambrose
Elite Veteran
Location: Pana, IL

So which Sigma fisheye lens is the "lens of choice" for Cannon cropped sensors?

A. 8mm circular
B. 10mm full-frame

Thanks!


Tony
05-28-2008 03:36 PM
 
 
dreslism
Veteran
Location: Rochester Hills, MI

Quote 
So which Sigma fisheye lens is the "lens of choice" for Cannon cropped sensors?

A. 8mm circular
B. 10mm full-frame


Tony,

the 10mm is pretty new, and I am not aware of seeing anyone else use it, so I have not seen any real reports on it yet, but I have not searched real hard to look for them.

Sounds like John O. was suppose to give it a spin last week.

He said he gives it an A+, but I have not seen any reports back from him yet after he said he was testing it. I would like to see a posted spherical from his results to check it out. Many have used the 8mm including myself and have been happy with it. When I bought mine, the 10mm did not exist.

--Scott
GreatLakesAP.com
05-28-2008 04:21 PM
 
 
dreslism
Veteran
Location: Rochester Hills, MI

Quote 
talk the torque

From my previous post I'm still trying to find out if each image is 3MP, would that be enough for really decent sphericals? As soon as I set my S7000 for continous mode its sets the resolution to 3MP

No one here can answer that for you. It would depend on the camera and the quality of the glass and the resulting images you are getting, and what your intentions are for the resulting pano.

Answer the question for yourself.

Do what I tell everyone to do before they try one in the air.

Go grab your mount, stand on a table or chair in your backyard, hold your mount above your head and away from your body with one arm, then flip your Tx switch which will pan your mount and take picts continuously.

Once it goes around more than 360, then stop and go take the resulting pictures and put them into ptgui and see what you get.

This will help you answer your question, and may point out some issues that you can fix on your mount, or camera orientation/angle before you waste time putting it into the air.

Quote 
My next question is what should I charge a client for a spherical? Compared to a still shoot, that way I will convert it into my currency for a basic idea

Well that is going to be market dependent, and you are in SA, but think of it as you will have a session fee to shoot the pano (similar to a still shoot), then you have post processing time(how long does it take you to stitch/patch, and put out a sellable pano??) which should be a fee, plus the exclusivity of "You can't get a spherical any other way without me doing it with my technology.", which should also be a fee.

Add those up and you have your price for a spherical.

If you have not done any from the air yet, it may be a while before you are ready to charge for these. They are NOT trivial to execute and put out good results. Once you get it down, it almost becomes a science to you, but you need practice to get your workflow down and know how to fix issues that can arise.

--Scott
GreatLakesAP.com
05-28-2008 04:32 PM
 
 
AirFoilAviation
Veteran
Location: Quincy, IL.

Quote 
So which Sigma fisheye lens is the "lens of choice" for Cannon cropped sensors?

A. 8mm circular
B. 10mm full-frame

Tested both and were ok.

The best lens we found for the XSI is the Cannon 10-22. Better image quality then the 8 or 10 Sigma fisheye.

Jami likes the pics better to stitch with. We are shooting this weekend at the lake with the XSI's and 10-22's. Will let you know how they work being used in all conditions.

The problem is the XSI is shooting 3.5 pics per second which we found the lens could focus the first one but after that the quality dropped off. Don't know why just know it did.

Lens
http://www.bhphotovideo.com/c/produ..._5_4_5_USM.html

Tony we have this lens coming in before we leave Thursday. Will be testing it.

http://www.bhphotovideo.com/c/produ..._2_8_EX_DC.html

John

Team AirFoil
05-28-2008 04:55 PM
 
 
dreslism
Veteran
Location: Rochester Hills, MI

Quote 
The problem is the XSI is shooting 3.5 pics per second which we found the lens could focus the first one but after that the quality dropped off. Don't know why just know it did.


John,

Have you considered manual focus for it just for panos?

A 10mm lens has a huge depth of field, so focusing is not an issue.

Hook the XSI up to your laptop and use liveview zoomed in to find the perfect sweet spot of the lens using manual focus, then put some blue painters tape on the lens so it does not move.

Everyone who shoots panos puts their lens on manual focus, and just tapes the lens so it does not move.

I know you use this lens for other stills also, and I would let it auto focus for those, but for panos, use manual focus. This will also help with being able to take the pictures faster since it does not have to focus.

That 4.5 mm lens would be cool for panos and allow very few shots to be used, but at that focal lenth, you will have basically zero ability to zoom in on a spherical .mov file like everyone likes to do.

Use the live view to check the focus/sharpness of your 8 and 10mm also. Sometimes lens's are a crapshoot where they can front or back focus, so it is always hard to compare the 8 to the 10 to the 10-22 without checking each lens.

This is the one use I have found for the live view, allows you to check your lens's real easy and quick.

--Scott
GreatLakesAP.com
05-28-2008 05:27 PM
 
 
phil007
Senior Heliman
Location: Austin, Texas

Quote 
So which Sigma fisheye lens is the "lens of choice" for Cannon cropped sensors?

A. 8mm circular
B. 10mm full-frame

I looked at both of them before buying the 10mm and it gives more detail than the 8mm. I've been shooting panoramas with the Sigma 10mm lens for about 6 weeks and I've been getting very good results with it. It's equivalent to the Nikon 10.5mm. The Nikon lens has to be hacked before it will work on a Canon.

Another good option for your Canon would be the Tokina 10-20mm.

Phil
05-29-2008 12:18 AM
HOMEPAGE  
 
 
phil007
Senior Heliman
Location: Austin, Texas

Quote 
Tony we have this lens coming in before we leave Thursday. Will be testing it.

http://www.bhphotovideo.com/c/produ..._2_8_EX_DC.html

The Sigma 4.5mm will give you the least amount of detail vs the Sigma 8mm or 10mm.
05-29-2008 12:25 AM
HOMEPAGE  
 
 
talk the torque
Senior Heliman
Location: SA

Ok guys

Went out to do a test with my nmodified pano rig. Nothing special in scenery but this test was more about parrelax errors etc. Was at our local sports club and did 3 tests. This one is made up of 8 images at 45 degrees apart. The camera is in portrait mode but I still cannot get the ground beneath the heli. Once I'm ready I will buy a wider lens. Anyway I didnt do anything on the sky or making the pic pretty just checking all lines up and did some editing for that. Once you've looked I have some questions... :)

Jason


06-19-2008 08:56 PM
 
 
talk the torque
Senior Heliman
Location: SA

grrr... runryder reduces the res so much it will be difficult once you viewing it in a viewer. Not sure how to keep the resolution higher.
06-19-2008 09:18 PM
 
 
dreslism
Veteran
Location: Rochester Hills, MI

stick it in pano2qtvr to make a .mov, and limit the tilt up and down so we don't see the holes.

--Scott
GreatLakesAP.com
06-19-2008 11:31 PM
 
 
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