That’s how Olympus inflates their macro magnification and I hate that as well!
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Tamron announces the RF Tamron 11-20mm F/2.8 Di III-A RXD
- Thread starter Richard CR
- Start date
I guess the Tamron engineers counted on in-camera stabilization, IBIS, since a wide angle lens is much less prone to little shaking movements than a tele lens. I shot frequently with my old fully manual Zeiss 18mm f/3.5 (no IS) on FF DSLRs w/o IBIS and never had any sharpness issues, even when I used that combo for street photography.
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Interesting view. I do have the Olympus 60mm macro for m4/3, which is specified as a 1:1 macro. It does seem to be accurate, optically 1:1. In marketing material they seem to claim "2x" but with an asterisk, and the note saying "35 mm equivalent". I think they are very clear about it, at least I knew what I was buying. (Actually this was the first time I saw the 2x claim when I checked their web site.)
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The marketing for their 90mm is a lot worse. Regardless, that’s not how magnification works, it’s the ratio between real world size and the size projected onto the sensor. The width and height of the sensor play no part in the calculation!
I get what they are trying to say and an m43 with a 90mm 2:1 lens would be great for dragonflies and amphibians, but sensor size still doesn’t influence the magnification ratio of the lens. Unless the size converges to zero
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Funny thing is, on the Tamron website for this new lens, they show it paired with the 17-70mm F/2.8 Di III-A VC RXD (Model B070). The footnote: 17-70mm F2.8 (Model B070) for CANON RF mount is not launched as of October 2024.
So it would seem it is coming.
APS-C: Living the Dream™
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