Firk
TPF Noob!
- Joined
- Feb 20, 2009
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- Green Bay
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Good Day All,
I was recently asked to shoot some pictures of some American Crocodiles in aid of a long term research project. By shooting their heads at a 90 degree angle, and using a range finder, the total body length can be calculated. But to use this information, the life-size magnification must be considered. I shot all pictures under the same settings to simplify the task, and I used a Canon Rebel XSi with their 55-250mm IS lens which was fully extended to 250mm. And so my question is what is the actual magnification(taking into consideration the smaller sensor) of this set up? Either a specific answer and/or a formula is/are appreciated.
thank you for any help,
~Firk
I was recently asked to shoot some pictures of some American Crocodiles in aid of a long term research project. By shooting their heads at a 90 degree angle, and using a range finder, the total body length can be calculated. But to use this information, the life-size magnification must be considered. I shot all pictures under the same settings to simplify the task, and I used a Canon Rebel XSi with their 55-250mm IS lens which was fully extended to 250mm. And so my question is what is the actual magnification(taking into consideration the smaller sensor) of this set up? Either a specific answer and/or a formula is/are appreciated.
thank you for any help,
~Firk