topic Re: Canon Rebel lens mm to digital equivalent in EOS DSLR & Mirrorless Cameras

Canon Rebel lens mm to digital equivalent

t3ijbp — Tue, 07 Mar 2017 18:57:13 GMT

So as I had stated earlier, I had just gotten a new Rebel T6. I like it so far.

I have an old S3 that still works great. Now i'm looking to expand my T6 to a higher zoom.

Currently my S3 has a lens that is 6.0 - 72.0 mm.

My Rebel T6 came with an 18 - 55 mm lens.

Question is, what does the 18 - 55 translate to for digital? I want to avoid getting a lens that does not go beyond what my S3 can zoom to. For example, would a 55 - 250 mm lens surpass the S3 lens?

TIA!!!

Re: Canon Rebel lens mm to digital equivalent

Waddizzle — Tue, 07 Mar 2017 19:12:17 GMT

@t3ijbp wrote:
So as I had stated earlier, I had just gotten a new Rebel T6. I like it so far.

I have an old S3 that still works great. Now i'm looking to expand my T6 to a higher zoom.

Currently my S3 has a lens that is 6.0 - 72.0 mm.

My Rebel T6 came with an 18 - 55 mm lens.

Question is, what does the 18 - 55 translate to for digital? I want to avoid getting a lens that does not go beyond what my S3 can zoom to. For example, would a 55 - 250 mm lens surpass the S3 lens?

TIA!!!

The 35mm equivalent range of focal lengths for your "old S3" is 36-432mm, which works out to be a x6.0 crop factor. Your T6 has a x1.6 crop factor, which means a 55-250mm lens will give you 35mm equivalent zoom focal range of 88-400mm. The 18-55mm lens has a 35mm equivlanet zomm focal range of 29-88mm.

Using a 300mm focal length on your T6 would have a 35mm equivalent focal length of 480mm. The EF-S 55-250mm lenses are a pretty good match for your T6. Canon sells a couple of different models, differing mainly by their release dates and the type of autofocusing motors. The latest and greatest have "STM" at the end of the model number.

I would recommend staying away from the budget priced 70-300mm lenses. The 55-250mm lenses offer better image quality, and less chromatic distortion.

Re: Canon Rebel lens mm to digital equivalent

kvbarkley — Tue, 07 Mar 2017 19:24:23 GMT

Does that include the new nano-usm 70-300? Remember, for APS-C you only need to use the inner portion anyway, where chromatic distortion is less.

Re: Canon Rebel lens mm to digital equivalent

Waddizzle — Tue, 07 Mar 2017 20:56:27 GMT

@kvbarkley wrote:
Does that include the new nano-usm 70-300? Remember, for APS-C you only need to use the inner portion anyway, where chromatic distortion is less.

"I would recommend staying away from the budget priced 70-300mm lenses."

Is the new nano-USM 70-300mm budget priced?

Just above is what the ~~EF 70-300 IS III~~ EF 75-300 III looks like at 200%. Notice the purple fringing along the high contrast edges.

Re: Canon Rebel lens mm to digital equivalent

kvbarkley — Tue, 07 Mar 2017 20:27:16 GMT

There is no 70-300 IS III. There is a 75-300 III.

Note, no IS and the different focal length.

Re: Canon Rebel lens mm to digital equivalent

Waddizzle — Tue, 07 Mar 2017 20:54:13 GMT

@kvbarkley wrote:
There is no 70-300 IS III. There is a 75-300 III.
Note, no IS and the different focal length.

Right, you are. Thanks for sorting that out. It's the 75-300mm kit lenses that I was thinking about.