What Lens to use?  

In the panorama field, hardware is also part of the success. You can discuss here about it: camera, computer, pano head, anything
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Shoot2Kill
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What Lens to use?

by Shoot2Kill » Tue Oct 06, 2009 7:45 pm

Hi Everyone,

To give a brief background I'm going to be using AGG to do virtual tours for Real Estate only. I'm very new to this so not sure if I can get by with what I have or should I be buying a Fisheye. I would prefer to use my 5D MK II. I will shoot Cylinder and Spherical. Please share your insight.
In the Bag: 5D MK II, 40D, 15mm F2.8 FE, 16-35 F2.8L USM, 17-40 F4L USM, 50mm 1.4 USM, 70-200 F4L USM, 303SPH, 055CXPRO3, 430 EXII, OPUS Studio Strobes

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by UK Pano » Wed Oct 07, 2009 9:44 am

Hi there,

Lens selection comes down to how many shots you wish you take for your 360 image.

Popular way for virtual tours is to go with a Sigma 8mm F3.5 Fisheye which requires just 4 images around at 90 degree intervals, one nadir image (pointing down) and one zenith (pointing above).

Alternate focal lengths will just increase the number of shots required - not right nor wrong - and possible require multiple rows (one row above horizon, one row at horizon and one row below horizon).

Another key piece of equipment will be the pano head to hold the camera above the Nodal Point. Popular models are from Nodal Ninja and 360Precision.

Good luck and don't hesitate to post anymore questions.
Canon 400D / Canon 24-105mm L / Sigma 8mm f3.5 FE / Sigma 10-20mm / Sigma 70-300mm / NN3 & R1 / PS CS2 / LR3 / Enfuse

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by GURL » Wed Oct 07, 2009 3:06 pm

Shoot2Kill wrote:...to do virtual tours for Real Estate only ... I will shoot Cylinder and Spherical. Please share your insight.

Using a circular fisheye to begin with (the shortest focal length among fisheyes, though for some of them this includes removing the attached lens shade) seems the way to go. I you find image quality not being good enough (that is, if you need more pixels in the final pano) you could switch to a rectangular image fisheye (longer focal length) latter but this is quite useless if the pixels amount in your image files must be low for faster download.

Note: using a "defish" program (or even Autopano) you can extract a not too curved image from a single fisheye shot and nevertheless show the four walls of a room (if you place the camera in a corner of the room) as in this example (post-processed using TKSharpless panini):


Georges

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by hankkarl » Wed Oct 07, 2009 6:37 pm

Are you doing high-end real-estate? That's different than trying to be the low bidder. for high-end shooting, you may want to use a narrower lens than 8mm so the viewers can zoom in more. On the other hand, the DOF an 8mm gives at f/16 is astounding.

On a FF DSRL, the 8mm will give you great results with three or four shots in a circle, and one vertex shot (if you want to do a spherical pano). If you need a nadir shot, you probably are doing high end stuff, and need to use a different lens.

Edit: Saw your list of equipment. If you're doing anything other than "lowest bidder" stuff, use your 17-40. You'll be shooting at f/12-f/16 and the 17-40 is probably sharper than the 16-35 at that aperture. Also, you may want to buy a new panohead. I also have the 303sph, and nadir shots are difficult, if not impossible. Some other panoheads support nadir shots.
Last edited by hankkarl on Wed Oct 07, 2009 6:43 pm, edited 1 time in total.

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by Shoot2Kill » Wed Oct 07, 2009 8:28 pm

Thank you for the quick responses from everyone. I will be doing a combination of High end and average priced homes being the majority. I had in my mind I would only do Spherical for High end and lowest bidder would be Cylindrical. I just bought the 303SPH and still can return it so if there is something that can do it better I'm very interested. Being that I live in Canada there aren't too many camera stores that I've found that even know about doing Pano photography so it's alot of finger walking on the internet. This has already been more helpfull than all the camera stores in Toronto I've talked to.
In the Bag: 5D MK II, 40D, 15mm F2.8 FE, 16-35 F2.8L USM, 17-40 F4L USM, 50mm 1.4 USM, 70-200 F4L USM, 303SPH, 055CXPRO3, 430 EXII, OPUS Studio Strobes

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by UK Pano » Thu Oct 08, 2009 11:14 am

If you can change the 303SPH then I would recommend a Nodal Ninja as a good starter pano head. It is light weight, compact and can easily do the nadir (pointing down) shots for a complete 360 sphere. The 303SPH as said above cannot do this. The NN 5 model perhaps given the use of a 5D mk2. The NN website has a comprehensive range and there customer service is very well rated.
Last edited by UK Pano on Thu Oct 08, 2009 11:26 am, edited 1 time in total.
Canon 400D / Canon 24-105mm L / Sigma 8mm f3.5 FE / Sigma 10-20mm / Sigma 70-300mm / NN3 & R1 / PS CS2 / LR3 / Enfuse

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by hankkarl » Thu Oct 08, 2009 6:12 pm

NN 5 is good. Or an automated head like the Merlin or http://www.vr-head.com/english/mk-panomachine/index.html or http://www.dr-clauss.de/VRhead_EN.htm

Kaidan seems to have gone away.


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