Steve said:
Marauder said:
Secondly, "79 AF points, granted not all cross type..." That in itself speaks volumes. The D7100 has 51 AF points vs the 70D's 19. But only 15 of the D7100's are cross type. There is a HUGE difference between a big number of AF points, vs their type. Also, take a look at the Servo AF comparison between the D7100 and the 70D here: https://www.youtube.com/watch?v=bOM4r1gxsbs
Note the 70D's buffer is substantially better as well, which is a factor when shooting action. Unfortunately, the tester only shot both cameras in JPEG and RAW+JPEG, and not in RAW only. The 70D not only outperforms the buffer of the D7100 in JPEG by a large margin, it also does so in RAW only. Neither is stellar RAW+JPEG (original 7D after fw update beats them both handily there) but the 70D is still better in buffer depth.
This part of your post doesn't mean anything. I was talking about the A77 II, not the D7100. The A77 II has a pretty damn good AF system by all accounts, a deep buffer, and 12fps - all of that feeding into a pretty fantastic sensor for a very reasonable price. That was my point - somebody already made the 7DII that most people around here were asking for, it just wasn't Canon. At least not yet. These specs CanonRumors put up may not be correct and, even if they are accurate, may indicate a fantastic camera
if the price is right, but so far they aren't much to get excited about. That was the point of my post.
As for gimping framerates, that part wasn't directed specifically at you. Just because I quoted your post to discuss one point doesn't mean that the entire post is specifically addressing points that you have personally made. I wrote that last line because it has been a general vibe around here that when someone would say something like "I just hope the marketing guys don't gimp the 7DII!" many people would jump in with "I've worked in engineering for 3489054378924 years and that NEVER happens!" Mostly, it seems like its jrista but there are others as well. I just didn't feel like quote mining for a throw away line.
Well it's not really a throw away line if you're aiming it specifically at something I'd posted as speculation (a
speculation that the dichotomy in frame rates might mean that the camera has latent capabilities beyond what it might ship with. And the then imply that the
same people who are saying Canon marketing has no bearing on specs are "now sagely acknowledging that they are probably purposefully gimping frame rate purely for marketing reasons." Seems fairly direct.
At any rate, my pondering is pure speculation of course, but it's possible. I also do concur that it would be far better for Canon to overreach and give 12fps over 10--but 10 is nothing to sneeze at!
Regarding my D7100 vs 70D, I'm well aware that you weren't referring to the D7100. My point is that the D7100 vs 70D is analogous to the 7D2 vs the A77II comparison you were making. I wasn't as clear as I ought to have been. I used the D7100 vs 70D since both are now
known quantities. We can do direct comparisons, not just on paper figures, but on actual comparable results. The reason it springs to mind is I've seen many such comparisons made in less extensive reviews where the 51 point AF system is given the
win to the D7100 in terms of AF, simply based on the fact that it has 51 vs 19 points. Simply looking at the total number of AF points, and not just the type of AF point can be very deceptive. The 70D may only have 19, but they are all of the far more accurate cross type, compared to 15 cross type on the D7100. Moreover, in a more detailed review, such as the one I referenced, not only does the reviewer point that fact out, they also do a real world test of Servo capability, which the 19 point 70D system (which is a much older AF than the D7100's) wins. They also compare buffer depth, which the 70D wins. (D7100 wins it's share of contests too--not all one sided and a very good review).
Take that analogy forward to Sony A77II to Canon 7D2, we are comparing a camera with 79 AF points,
of which only 15 are cross type to one with 65
all cross type AF points. . On the face of it, I don't see those as comparable. Not to say the Sony system will be bad--but I don't think it "wins" because 79 is more than 65! Not when it's also 15 vs 65! There's more than just the total number of AF points to consider.
Moreover, we don't know how their AF systems will compare yet. We don't even know if the 7D2 specs we have are correct yet! And once we do, that STILL won't tell us how they compare until someone takes them out neck and neck. We don't even know if the A77 sensor will really be "better." All we can say is that the current fps shows an advantage to the A77, compared to this published spec, but we don't know anything about buffer comparisons (needed to USE that fast fps) or how their AF systems will actually
work in the field.
In essence, I think the 7D2 will probably deliver an outstanding action camera. But I don't know that yet...and neither does anyone else! 8)
