I've been wondering about that too. Would they do a R6s at 45 MP (to recycle the R5 sensor) or 30 MP (develop a new one) and R5s at 90 MP? Each ~1000 $ more expensive than the non-s models, but otherwise very similar especially in terms of build quality?
If you can't get closer to the animal or afforder a bigger lens, you won't see an IQ difference between FF and APS-C, as you have to crop to the same framing anyway. If you don't have to crop the FF image, because you are so close or using such a long big white, FF will be just over one stop less noisy.
Well if you shoot full frame , you have to crop anyway and you get even more noise .
But they already have excellent M mount cameras and lenses for this , the RF aps-c camera is (I hope) a specialised camera to replace the 7Dmark ii for us wildlife/sports nutters and we don't want wide angle lenses !
Yeah , but we pretty much always have to crop and the cropped FF has lower pixel density than aps-c ; for example the R5 cropped has 17mp versus the 90D aps-c sensor is 32mp which is twice as much pixels
Will image the hairs in people's noses much crispier than before -- @ F ≤ 2.8
Still shooting 4 mpix? No.Will image the hairs in people's noses much crispier than before -- @ F ≤ 2.8
While I've loved using my RF 15-35 f2.8L, I'll admit I'm new to using any lens wider than 24mm and so I'm just happy to explore the new horizons the wider view gives me. I haven't tried to take images at MFD yet and I haven't been trying to critically analyze the edge & corner performance. I suppose I could try some tests and get back to you on it, but I don't have an R body to compare it with.
When taking a portrait of my wife, I sometimes try to impress her with the new camera by telling her something like "Wow, it's so sharp, even your nosehairs are in perfect detail!"Will image the hairs in people's noses much crispier than before -- @ F ≤ 2.8
--- She's not impressed!
While I've loved using my RF 15-35 f2.8L, I'll admit I'm new to using any lens wider than 24mm and so I'm just happy to explore the new horizons the wider view gives me. I haven't tried to take images at MFD yet and I haven't been trying to critically analyze the edge & corner performance. I suppose I could try some tests and get back to you on it, but I don't have an R body to compare it with.
So your RF 50 1.2 & RF 70-200 2.8 look the same on the R and R5? That would indicate to me that your R is working as expected and there's no big difference in sensor technology regarding how they work with RF lenses. If you're handholding your RF 15-35 2.8L then I would expect the R lack of IBIS could be a major factor causing trouble, since lens IS can't correct for some of the modes of image shake, such as rotation while the IBIS can cover those in addition to improving all the other ones. I would suggest that you don't make any tests handheld and only test with a tripod and non-moving subject.
I would assume that the angle of incidence of the light hitting the sensor edges is getting very extreme as you get wider and wider views, such a 15mm or possibly at MFD (I'm just guessing there) and thus that might indeed show there is an effect of the microlens & sensor construction between the R and R5 for severe off-center angle of incidence. To better test that theory, I'd suggest you find someone else with an R body to test your 15-35 lens on to see if it has the same effect (only towards extreme wide angles) with all your RF lenses.
(ps - it's soooo nice to have calm discussions again)
What you might be missing is this: With a very wide angle lens, there is no IBIS correction that can correct perfectly the tilting shake in the center of the sensor at the same time as the 4 corners of the sensor. That's because the image in the center moves at a different rate than at the corner, just because of the geometry. And you know the image stabilization/AF point of interest is going to be near the center of the image and not at the corner or edge. So you should expect sub-optimal IS correction towards the corners of any extreme wide angle lens. That's the reason I suggest you do your tests on a tripod with a non-moving subject to eliminate totally that issue.Calm discussions are great
What I meant regarding the 70-200 and 50 on the R5 vs R was that I didn't see any improvement – but I do see the imperfections that were there on the R become amplified on the R5. That's not to say their performance on the R5 is any worse, but I am better able see the imperfections on the higher res sensor because I'm looking more closely at the image at 1:1 magnification on the R5 than I am on the R at 1:1.
The 15-35, I almost returned it when I was using it on my R. I'm glad I kept it and tried it on the R5. I do think they may have changed the microlens design on the R5 so that it improves corner performance for extreme wide angles, but I don't have the testing acumen to prove it. I'll have to leave that to the brick-wall tripod testers out there (for which I am thankful, I don't say that in a derogatory manner).
If there are any optical physics gurus in the audience: does sensor stabilization have a more dramatic effect in the corners for extreme wide angles? I know the movement of the camera is the same between lenses, but on an extreme wide angle, the same amount of movement at the camera should result in the image blur covering a larger distance on a more distant target. So even though the IBIS correction will be the same at 15mm as it will at 50mm for the same camera movement, more of the target image passes across the same corner of the image at 15mm versus 50mm, and that image corner will be less-detailed to begin with and blur will have a more noticeable effect. For example, if I put the same tree in the corner of my image at 50mm and 15mm, I will see more detail in the branches at 50mm than I do at 15mm. So a small amount of blur will have the same effect on both images, but since the subjects contain different levels of detail, the 15mm shot should appear less detailed when blurred, thus giving the impression that IBIS has a bigger impact on the corners the wider the angle of view.
When taking a portrait of my wife, I sometimes try to impress her with the new camera by telling her something like "Wow, it's so sharp, even your nosehairs are in perfect detail!"
While I'm no expert on this (or on many other things I talk about
), I wouldn't think that IBIS would make the corners any worse than they would have been (due to handhold shake) without it. But when Canon says they're getting some extremely high #stops of dual IS (which I often have seen measured by 3 or so less stops when user tested) I would strongly assume that it is measured in the center of the sensor, while the corners of the sensor for an extreme wide angle view would be still be improved, but by much less than the center.
While I'm no expert on this (or on many other things I talk about
After using my R5's a couple of months I actually DO think they can and will improve the auto focus quite a bit.
Better equipment pushes the borders for what we are trying to achieve and I’m constantly throwing myself into situations where the eye and face detection isn’t sufficient - horse and bicycle riders with helmets AND goggles, far away in a messy forest for example. Half of my framing time can consist in trying to tap in the focus and then, when it kicks in it might take one or half of a second of reframing, and in a split second, the subject is gone. Did I get it? Sure. Am I satisfied? No, I missed a lot as well.
Some kind of complementary initial focus system is bound to come, a specially for the low light situations. And I’m really looking forward to it
Is the R5 2nd button you mention set to "eye detection AF" or "eye detection". There are 2 choices in stills mode, but in video mode there is only the "eye detection" mode. I don't know what the difference is between them, do you?
