Tamron 20mm or 17-28mm.

Started 7 months ago | Discussions thread
Impulses Veteran Member • Posts: 7,679
Re: Tamron 20mm or 17-28mm.

BrentSchumer wrote:

shadowlands wrote:

I went with the 20mm because I don't go ultra wide that often, but it's there, if I need it.

And it's smaller, lighter and less costly.

Does it look like a real 20mm to you or more like 21mm? I heard that the field of view is narrower after massive geometric corrections.

Two things, I think it's a little wider actually (one of the reviews I read seemed pretty clear on that), tho I can double check against my 17-28... Second, stated focal length is usually factored after lens corrections have been applied, tho I guess there's always exceptions.

I don't recall it needing that much geometric corrections tbh (not like the Tamron zoom which has some funky mustache distortion going on), but I could be misremembering. Dustin Abott's review should have corrected/uncorrected distortion tests against a chart.

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