Figuring Magnification

[chad_goldman]

<p>How do I figure magnification when I have a D50, 1.4 TC, and a micro lens 1:1?</p>

<p>thanks<br>

CG</p>

[SCL]

<p>Easiest way mathematically is to know the sensor dimensions and object dimensions and determine how much of the sensor is covered by the object. If you are only interested in final results, you divide the final picture of the object (at whatever size you are viewing it) by the original object dimensions.</p>

[leicaglow]

<p>If the lens is 1:1, your mag would be 1x. With a 1.4TC, it would be 1x * 1.4 = 1.4 mag. I don't believe the focal length would come into play in this scenario, so long as whatever lens you are using is at 1:1. Someone correct me if I have this wrong.</p>

[alex_lofquist]

<p>You're right. 1X is 1X, irrespective of focal length!</p>

[savagesax]

You can also use those Kenko extension tube DG set of rings. They come in a set of 3. You can combine all 3 together or simply use 1. I would support Canon, but as far as I know Canon doesn't make these. I prefer these over close up filters.