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Monasterio del Desierto de los Leones Mexico by Rurik List

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About This Gigapan

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Taken by
Rurik List Rurik List
Explore score
103
Size
0.09 Gigapixels
Views
2726
Date added
Jan 01, 2010
Date taken
Jan 01, 2010
Gear

Canon 5D MK II, Canon 70-200 f...

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Description

The National Park Desierto de los Leones was the fitst National Park decreed in Mexico (1917), but well before that was home of monks, who built the Monastery which garden is shown in this picture.
The panoramic is composed of 752 pictures taken by a Canon 50D and 70-200 mm zoom (at 200) on a Automate panoramic robot. It took me 2 hours to complet the shots, partly because of the Automate lost communication with the remote often, when I stopped the pano to repeat a skipped picture (because of unability to focus in the set time or because of a person crossing), causing a 5 or so minute delay every time I had to reset the PDA that acts as a remote control, and partly because I had to wait for people to move before continuing with the pictures, but despite that there are some incomplete persons and a "twin". The PSD file is 4.5 gigabites, but when converted to 72 dpi JPG became less than 1 GB.

A drawback of using a SLR is that the depth of field is much reduced as compared to the small sensor of a point and shoot. Because of that there are pictures of in focus objects in the foreground and a halo of blurr in the background, surrounded by sharp areas, which give the impression of badly pasted images. This problem is particularly bad in a picture like this one, where there are many objects at different distances, both close and far. Because of the long time it took to complete the pictures on a partly cloudy day there were many changes in lighting conditions, which is particularly noticeable in the trunk of the trees in the middle of the image.

The parameters I used were an overlap of 50% horizontally and 30% vertically. The time to half-press the shutter of 1 sec; time to hold the shutter open 1 sec; time to save image to card 1 sec; delay to move shutter after shutter press 0.5 sec; settleing time before firing shutter 1 sec. I need to check how long to extend the half-press time, in order to reduce the number of skipped pictures because of the camera failing to focus, which was the most recurrent problem during the pano.


Gigapan Comments (2)

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  1. Rurik List

    Rurik List (January 04, 2010, 11:56AM )

    Barry, I use the Acratech nodal rail to set the camera on the nodal or no paralax point. For the panoramic pictures I set the nodal point on the Canon 50D as follows: 200 mm 12, 70mm 5.5. For the hemispheric pictures, which is what I imagine you are doing for the virtual tours I use a Canon 5D Mk II with a 17-40mm set a 17mm and with a nodal distance of 1.5. Yesterday I made a test and for the 50D with 17mm lens, the nodal distance was also 1.5. I am not using the Gigapan yet.

  2. barry fox

    barry fox (January 04, 2010, 01:27AM )

    hi you say you use a canon 50d ,i have a canon 50d and tried it did you change anything on the giga pan to get the proper nodle point,or just sit it back as far as possible.i am using tour weaver 5 to make a virtual tour of my town great yarmouth and find that taking shots in the rooms,close ups i get over lay on my shots.what number do you use on the disk to set on giga pan i have been using 2.any way back to your giga pan pic its fantastic what you can do now but find it hard in norfolk to get a sceen to shoot as its flat as a pancake.have a look at www.greatyarmouthholidays.co.uk&nb sp;Will
open in a new tab or window and look at map for hotels that i used giga pan for. from barry in the uk

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