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 Post subject: Canon`s photostitch
PostPosted: Sun Apr 25, 2010 7:26 pm 
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Joined: Sun Mar 28, 2010 5:02 pm
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Location: MALTA
I am trying to use canon stitch to make a panorama of some pictures I have taken and the programme is asking me for the focal length (35mm equivalent) I am using a Canon EOS 1000D with 18-55 IS lens.
Can anyone pls help

Thanks


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 Post subject:
PostPosted: Sun Apr 25, 2010 8:00 pm 
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The canon cameras have a crop factor of 1.6. This means that you have to multiply the actual focal length used by this crop factor to get the equivalent focal length.

For example if your shot was taken at 24mm, times this by 1.6 gives just over 38mm. Look at your exif data if your unsure of the focal lengths you used, it will say in there.

Also, im not sure how precise you need to be, Im sure there is a much more accurate conversion than 1.6. For example I know Nikon claim a crop factor of 1.5, but in fact it is 1.54, so a lot tighter than people think.

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Nikon D5000 and D300 with 12-24mm, 35mm f1.8, 50mm f1.4, 60mm f2.8 Macro, 18-200mm, 17-55mm f2.8 (all Nikon)


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 Post subject:
PostPosted: Sun Apr 25, 2010 8:44 pm 
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Location: MALTA
Camera Model Canon EOS DIGITAL REBEL XS
Shooting Date/Time 25/04/2010 13:44:24
Shooting Mode Manual Exposure
Tv( Shutter Speed ) 1/200
Av( Aperture Value ) 10.0
Metering Mode Evaluative Metering
ISO Speed 100
Lens EF-S18-55mm f/3.5-5.6 IS
Focal Length 40.0 mm
Image Size 3888x2592
Image Quality RAW
Flash Off
White Balance Mode Daylight
AF Mode One-Shot AF
Picture Style Landscape
Sharpness 4
Contrast 0
Saturation 0
Color tone 0
Color Space sRGB

This is the exif data i have so do I multiply the 40.0 mm?


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 Post subject:
PostPosted: Sun Apr 25, 2010 9:03 pm 
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Correct,

So the equivalent focal length is 64mm

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Nikon D5000 and D300 with 12-24mm, 35mm f1.8, 50mm f1.4, 60mm f2.8 Macro, 18-200mm, 17-55mm f2.8 (all Nikon)


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 Post subject:
PostPosted: Sun Apr 25, 2010 9:33 pm 
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Location: MALTA
Thanks mate here`s the result

Image


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 Post subject:
PostPosted: Thu Apr 29, 2010 11:14 am 
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Location: Wiltshire, United Kingdom
nice stitch bud. Remember to level your horizon though..

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 Post subject:
PostPosted: Mon May 09, 2011 3:40 am 
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I strongly recommend AcroPano Photo Stitcher http://www.acropano.com
I really have no experience with anything else, and I rarely stitch.. so take that for what it's worth..


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