snowboarder wrote:
I agree, but still this lens is advertised as f2.8 zoom and it\'s simply pushing the truth.
Agree OMD + 3 primes is probably the most versatile small AF system available.
But it\'s not true you need FF to get shallow DOF. You just need a fast lens.
Even the good Oly glass is too slow. 12 f2 is like what, 24 f4? Why not 12 f1.2 or 1.4?
Because suddenly we would discover it would be probably the same size
as every other 24 f1.4 or f1.8 lens out there. The size advantage is less
related to the small sensor and more to the slow speed of those lenses...
It IS an f/2.8 lens. It has similar DOF for the same framing as an f/5.6 lens on full frame, but it\'s an f/2.8 lens. An f/5.6 lens on full frame is different than the same lens on 4x5 film too...but both are f/5.6 lenses. Saying that it\'s pushing the truth is just ridiculous. 35mm is not a \'magic reference format\' where lenses act the way they truly are. It\'s a 12-35mm f/2.8 lens. Period.
As I\'ve said before...it\'s only a disadvantage for shallow DOF shooting...and that\'s the tradeoff when you go to a smaller format. For everything else, it equalizes. For a landscape shot, you\'d likely need to stop down to f/8 on full frame for decent depth of field. You can shoot the same scene at f/4 on m4/3 and it negates the \'speed advantage.\' I can often shoot interiors without a tripod at 12mm f/2, with the in-body IS) at ISO 200...in situations that would require ISO 1600 or higher with full frame due to the lack of IS or the need to stop down. This is often left out completely in these types of discussions, and I\'m not exactly sure why.
snowboarder wrote:
I agree, but still this lens is advertised as f2.8 zoom and it\'s simply pushing the truth.
Agree OMD + 3 primes is probably the most versatile small AF system available.
But it\'s not true you need FF to get shallow DOF. You just need a fast lens.
Even the good Oly glass is too slow. 12 f2 is like what, 24 f4? Why not 12 f1.2 or 1.4?
Because suddenly we would discover it would be probably the same size
as every other 24 f1.4 or f1.8 lens out there. The size advantage is less
related to the small sensor and more to the slow speed of those lenses...
It IS an f/2.8 lens. It has similar DOF for the same framing as an f/5.6 lens on full frame, but it\'s an f/2.8 lens. An f/5.6 lens on full frame is different than the same lens on 4x5 film too...but both are f/5.6 lenses. Saying that it\'s pushing the truth is just ridiculous. 35mm is not a \'magic reference format\' where lenses act the way they truly are. It\'s a 12-35mm f/2.8 lens. Period.
May 21, 2012 at 10:32 AM
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