two camera systems is cheaper than one?

Started Feb 28, 2014 | Discussions thread
joejack951 Senior Member • Posts: 2,682
Re: You're not going to do it with Micro Four Thirds
1

Lumixdude wrote:

If you want extremely fast lenses then you have issues as well, you cannot expect a smaller sensor to compete on lens speed.... It can purely in terms of F/Stop but in terms of T/Stop where it counts the larger sensor camera will always let more light in, that's just the design of the beast.

T-stop is not what counts as the main difference between full frame and m4/3 lenses. I am sure I can find instances where m4/3 beats full frame in terms of T-stop due to needing less glass to cover the sensor, but it's a fairly meaningless difference as T-stop differences tend to only be fractions of a stop and don't affect DOF. What matters is aperture size for a given field of view (aka equivalent aperture, but I know how much m4/3 guys hate that term so I'll try to avoid saying it again).

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