I understand the concept of the cropped sensor and what that means compared to a full frame (um.. is this correct context?) camera... but how do i work out the adapted lengths?
For example, i have an EOS 10D... i'm not sure of the sensor size, but presumably it's not full frame or anywhere close... so at 18mm, my 18-55 is actually how wide? And how do i work this out? Is there a formula?
I really interested in getting a 10-20 (or more likely 10-22 Sigma/Tamron given my budget) but if my 10D will reduce the width too much there wont be much point. What will the width actually be?
For example, i have an EOS 10D... i'm not sure of the sensor size, but presumably it's not full frame or anywhere close... so at 18mm, my 18-55 is actually how wide? And how do i work this out? Is there a formula?
I really interested in getting a 10-20 (or more likely 10-22 Sigma/Tamron given my budget) but if my 10D will reduce the width too much there wont be much point. What will the width actually be?