Feedback: 5DMKIII or 6D? (longish)

Started May 10, 2013 | Discussions thread
Timbukto
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Re: Feedback: 5DMKIII or 6D? (longish)
In reply to DtEW, May 11, 2013

The 6D addresses all of the issues you point out with the 5DMKII.  Keep in mind however that the mirror slap of the 5DMKII is mostly only an audible issue (although yes you can feel the vibration too), but in real-use it has rather good reliability of taking sharp shots at many shutter speeds...even better than MFT cameras (which have shutter shock) or some 1D series cameras that shoot at machine gun rates.  Sony avoids these issues with electronic first curtain shutter.

Canon also uses electronic first curtain shutter by default in liveview.  Proof is in the pudding that for the most part if you shoot handheld, you do not lose much over liveview + handheld as the fact that its handheld and not a tripod shot is an order of magnitude more significant (and you need to shoot telephoto + slow shutter speeds).

6D has very quick shutter lag and VF blackout time compared to 5DMKII.  The 6D is the cleanest sensor Canon makes besides perhaps the 1DX.  It's a pretty significant advantage over the 5DMKII past 3200 ISO.  It has less banding and more random noise patterns to be subjectively better in appearance.  It seems to provide better E-TTL exposures with my YN-565.  It has much better AF, but you may still need to apply MFA (in which case it also has more advanced MFA for zooms).

For pros that use multiple camera's or shoot in the studio the 5DMKII is fine and if anything mirrors the controls of the 7D and 5DMKIII much close as well as using CF cards.  If you like using mirrorless camera's and only will use a few DSLRs, you'll prefer the 6D for the SD cards and won't care about having the 5DMKII/III/7D handling.

The 5DMKIII has better FPS and AF system, however the 6D AF system I think is better than the 5DMKII, but its also still very basic and sparse in AF points as well as being a bit slower to select AF points due to directional pad vs joystick.

Sony Exmor still has better dynamic range, but whether it is useful to you is whether you believe your Sony Exmor shots at ISO 200 are significantly and noticeably worse and more limited than your ISO 100 shots in dynamic range or shadow noise.  In terms of high ISO performance, the 6D is really up there.

Dynamic range and read noise of camera's is not much different from dynamic range and noise floor of audio ADC's.  Yes technically a 120db audio ADC is better than a 112db dynamic range audio ADC, but what matters more is the microphones, the music, the venue, the mixing, etc.  Often in popular music, audio engineers will apply dynamic range compression (which essentially pushes low level sounds louder).  Red Hot Chili Peppers is know for having terribly hot and clipping audio quality.  It is not different from too much shadow pulling actually.  Similarly music that tends to not apply audio compression sounds more 'dynamic', and photos that do not apply as much shadow pulling have more contrast.  That is not to say some audio engineer genius can not do something better with better audio gear, but in real-world significance it still boils down to the music and performance.  Similarly audio playback equipment performance has only gone *down* (i.e. portable mp3 players), and photographic reproduction requirements have also gone *down* i.e. death of printed media, rise of facebook and low quality digital displays and less likelihood of needing/using large prints.

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