RustyBug
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 p.56 #4 · Official: Canon Announces the EOS 6D Mark II | |
Rusty1 wrote:
Canon uses 160 real base ISO on 6D2, 6D, 5D4, 7D2 and other but not all cameras
Which is where the 80D uses the lower base ISO ...
I had hoped that they would also move the base ISO from the 6D > 6D2 lower to match that of the 80D. It would have meant a bit of a hit on the higher ISO, but that didn't happen. Again, it was a hope ... understanding that the 6D series has its prowess in areas other than shadow lifting ... not the least of which is its very broad range of usability (in a different manner than ISO invariance / shadow lifting) native to a given ISO.
While much advocacy is made regarding the shadow lifting, I see the 6D2 being a very welcome camera to those shooting wildlife, birds, sports, etc. over that of maximum DR landscape, etc. The combination of noise and detail (weaker AA filter  ) provided at the higher ISO seems to be well suited for light challenged environments or where the ISO is raised for the benefit of shutter speed. The higher base ISO, while coming at the expense of the DR provides for a better IQ in the end (vs. base ISO & lift) once you move south on the available light realm in non-DR extreme scenarios.
Imagine shooting indoor sports (basketball, volleyball, etc.) or morning / dusk critters or little tykes in the house. Since you're EV level is low ... you're effectively going to wind up in the higher ISO territory whether you shoot the higher ISO natively, or try to use the lower base ISO and lift. In the end, using the native ISO yields the better IQ than the approach of base & lift.
For the dedicated DR junkie, the 6D2 is likely not the ticket for them. And while there will continue to be those who decry what Canon did NOT do, there does remain an aspect of what Canon DID do. Too early to confirm from these few samples, but it appears to me that the noise pattern is improved, the color is very nice, and the AA filter seems to be weaker (which also means slightly higher noise, i.e. 5DsR vs. 5Ds), if the same glass was used for the 5D4 and 6D2 images.
I for one would like to see what this camera does in the hands of Geoff or others for that feather detail in light challenged situations, etc. The max DR users have their obvious objections presented for the test data. I'll welcome equal time for the non-DR users in real world to find out what this camera really IS as well as isn't. It may not be the Pentax K-1 ISO invariant, but it may also be very good at what it does natively.
One thing I noticed with many of the "lifted" shadows in the test scene was the color shift that accompanied it. Shooting at native ISO seemed to avert that shift. Imo, I see a lot of real world images that are not well corrected for color casts or WB. The prospect of imparting color shift while lifting (camera dependent), means it is something that has to be corrected for. Imo, the issue of correcting for noise vs. correcting for color ... well, both are an additional correction, so it becomes a "choose your poison" kind of scenario.
In that regard, shooting the native ISO seems to yield a better overall (noise & color) IQ. Of course, we haven't determined the sweet spot or limits to be employed, but I think that when we start including the issues of AA filter detail & color fidelity to the native ISO, there is an offset afforded to the otherwise glaring difference in the DR at base ISO compared when getting to final IQ.
Still ... the test data shows the the low ISO DR to be not on par with other cameras. That is seemingly unrefutable. But, the question becomes ... what does that mean / not mean to a given user in real world application. Uber-DR shooters are going to continue to cry foul, that will never change. But, now that "Strike One" is clearly a wicked curve ball that we didn't want to see ... next pitch, please. Since we've quickly assessed what it is NOT ... now, let's see if we can find out what this puppy IS and how we CAN use it to knock it out of the park. 
Surely, it's good for something. 
Edited on Jul 21, 2017 at 07:37 AM · View previous versions
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