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First impressions on Oly 30mm macro

Started Jun 4, 2017 | Photos thread
(unknown member) Veteran Member • Posts: 7,274
Re: What x1.25 magnification looks like in practice

Same magnification ratio doesn't do it... It is sensor size then

A 1:1 lens is 1:1 lens on all formats. That is the point!

It is then the sensor size that tells user what size can be captured.

Focal length is for the field of view and distance. So you can realise that at 5m distance you have same subject size with 50mm as you have with 100mm from 10m distance but background is 2x larger with 50mm than with 100mm.

And with same subject magnification you have same DOF with same format, so focal length changes the background more at that point than DOF.

30mm macro in 1:1 vs 60mm macro with 1:1 is same by magnification but different by background (and working distance etc).

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