A few words on Equivalence and comparing systems

Started Apr 2, 2013 | Discussions thread
Just Having Fun Veteran Member • Posts: 3,869
You most important point

Great Bustard wrote:

Lastly, one doesn't choose a particular system to get images which are equivalent to another system.  Instead, one chooses a particular system for the best balance of the factors that matter to the them, such as price, size, weight, IQ, DOF range, available lenses, and/or operation.  By understanding which settings on which system create equivalent images, the difference in their capabilities is more easily understood.

In other words, simply because 35-100mm f/2.8 on mFT is equivalent to 70-200mm f/5.6 on FF, it doesn't make one "better than" the other.  But it may well have a great deal with why one chooses one system over the other, or, in fact, why so many seem to enjoy both.

I almost wish everyone would ignore everything else and only remember your last point.

People who say a 20mm F/1.7 m43 lens is the same as a 40mm F/3.4 lens are silly.  There aren't that many 40mm F/3.4 lenses, and since the AR is different you are most likely to adjust you shooting location based on that alone.

Oh well.  People need to be happy with what suits them best and ignore everything else.

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