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28-105 vs new 55-250

Started Jun 16, 2014 | Discussions thread
msowsun
msowsun Contributing Member • Posts: 740
Re: 28-105 vs new 55-250
1

JavaM wrote:

brian1366 wrote:

Interesting upgrade as the focal lengths are different. I could never live with the 55-250mm as my main lens. I would need something wider.

Yes and no. On a full frame camera, it is true they are different. But I have APS-C camera. so 1.6 multiple. When you convert, 28-105, it becomes 45-168. So, 55-250 is not that far off.

If you want to apply the 1.6 crop factor to the 28-105, you also need to apply it to the 55-250. It does not matter whether or not the lens is EF or EF-S. The focal length is always the true focal length of the actual lens.

With the crop factor, you would be comparing a 45-168 to a 88-400. That is a very big difference in focal lengths!

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