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IMHO it's usually best to stick with the gear you have - at least until TECH forces a change.
4/3 is not known to be "better" - just different & with the many variations and lens options that is possible.
( Something Sony forget when introducing the NEX range . . . . but many Mfrs fail to provide a range of lenses - it's very expensive! ).
I'm guessing it depends on the size/distance of the birds - and are they moving/still? The 4/5 has a factor of x2 but only because the sensor is smaller - you can enlarge what yr Canon gives you ( for free!) and achieve similar results.
As others have suggested alternative lenses - have you considered Sigma and Tamron? They are well-known for lenses and should be able to match your mount for electrical-connection.
Whilst I've no knowledge of... I have seen relatively cheap mirror lenses on offer ( Amazon), which would give you something that is lighter, ( easier? to balance), although the usual bugbear is aperture-changing.
Alternatively, quite Left of Field - Have you considered a drone - fly closer. Hope that helps..... |
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