Matt:
Thanks for the response. I learned something.
---Bob
Thanks for the response. I learned something.
---Bob
Asking about Canon DSLR macro lens
- Thread starter David Bali
- Start date
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Many of you probably understand this already, but there may be some who were confused, as I was at first, about the crop factor and statements like "a 100mm with a 1.6x crop factor camera is equivalent to a 160mm".
This statement is true, but is referring only to the field of view, not the magnification or telephoto-ness of the lens. That is, using the 100mm on a cropped sensor yields a picture which is equivalent in all ways to a 60%(approx) crop of the equivalent shot taken with the same lens on a full frame sensor. The image isn't any bigger on the sensor, you just have a smaller sensor.
Put another way, the angle of view, or that amount of the view rendered through the lens that is intercepted by the sensor, is narrower.
Did that make sense?
Here's a tool to calculate the angle of view for different lenses on different camera:
http://www.sweeting.org/mark/lenses/canon.php
This statement is true, but is referring only to the field of view, not the magnification or telephoto-ness of the lens. That is, using the 100mm on a cropped sensor yields a picture which is equivalent in all ways to a 60%(approx) crop of the equivalent shot taken with the same lens on a full frame sensor. The image isn't any bigger on the sensor, you just have a smaller sensor.
Put another way, the angle of view, or that amount of the view rendered through the lens that is intercepted by the sensor, is narrower.
Did that make sense?
Here's a tool to calculate the angle of view for different lenses on different camera:
http://www.sweeting.org/mark/lenses/canon.php
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