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From Camera Decision, looks like Optical Image Stabilization. 

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16 minutes ago, Levacy said:

From Camera Decision, looks like Optical Image Stabilization. 

Interesting that they have done such a detailed “review,” yet the camera does not officially exist yet and I doubt if they were beta testers.  They even give it scores on its usability for different types of shooting. My, my, we are an impatient species!

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8 hours ago, keithlaban.co.uk said:

Can anyone here please confirm if back button focusing with the current Q3 (28) is possible?

I'm trying to gauge whether it will be a possibility on the Q3 43?

Many thanks in advance.

I think the original Q supported BBF, but the Q2 and Q3 do not

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25 minutes ago, duoenboge said:

I believe the Q3 43  is the camera the Q community has been waiting for for a long time. I hope Leica has enough production capacity to make the waiting times somewhat bearable. I'm already looking forward to the Monochrom. Yes we are an very impatient specie.😊

Me, too. I admit I got my name on the list when I first heard about a hypothetical Q with normal focal length lens. 

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33 minutes ago, Likaleica said:

Interesting that they have done such a detailed “review,” yet the camera does not officially exist yet and I doubt if they were beta testers.  They even give it scores on its usability for different types of shooting. My, my, we are an impatient species!

The 15 fps photo and 120 fps video specifications strike me as wishful thinking (would be happy to be wrong!).  More importantly, when will the usb-c port allow for microphone input?  That’s been promised for over a year on the current Q3 model.

Edited by elviskennedy
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5 hours ago, Stuart Richardson said:

The lens looks like a huge improvement over the Q 28mm version, especially in the edges. Apologies to grab the mtf from different hands, but it is all from Leica anyway, it seems. It looks like the 43mm will be better wide open than the Q 28mm is at any aperture. It is not quite as even as the apo summicron 50mm SL, but I am not sure if that translates to any notable IQ differences. It is extremely close in terms of percentages, just not quite as flat. But the differences would be very subtle. Truly looks like a stunner! Something to be very excited about in my mind. I would guess this is partially about a normal lens being easier to design from a distortion perspective and being less reliant on heavy software correction of distortion (which can diminish sharpness). This is of course a lens that is almost ten years newer, but the combination of being a more standard lens and being newer seems to have made it quite a step above in image quality. This will be capable of exceptional large prints when combined with the 60mp. As for IS, I would be very very surprised if it was not included, either in the lens or the sensor.

 

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You cannot compare MTF curves across focal lengths. 

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vor 23 Minuten schrieb jaapv:

You cannot compare MTF curves across focal lengths. 

Could you expand on that for a generalist in technical details? 

To me it was always THE indicator for the percentage of micro contrast in lines/mm over the frame no matter what FL it is. 

How could this be different due to FL in a Frame, Siemens star or whatever? 

Thx in advance!

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33 minutes ago, lik said:

One detail I haven't found anywhere: Internal memory like the M 11 generation has. 

I would highly appreciate that. 

Any information here?

Internal memory (or 2nd SD card) would be great, would almost make up for new color grey leatherette. Maybe it looks better in person. 

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1 hour ago, jaapv said:

You cannot compare MTF curves across focal lengths. 

Can you elaborate, because that seems to be a very strange comment and the first I have heard of this, despite reading Zeiss's technical publications on interpreting MTF charts. I think you absolutely can. It does not mean they are completely the same, but the performance metrics are the same...it is percentage of contrast in relation to the distance from the center of the image circle. It may be harder for a wide angle lens to achieve a very good MTF result than a telephoto or normal lens, but fundamentally it is still a measurement of percentage contrast.

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You cannot even compare across brands. There a different methods to determine MTF. The other problem is that they are measured/calculated in the film/sensor plane only. So if they fall off towards the corners you may well be seeing a curved focal plane instead of a falloff in resolution/contrast, which often makes shorter focal lengths score “worse” . The best way to compare lenses is using OTF graphs. And then, both lenses will be a hybrid design, meaning that the final digital corrections are incorporated in the optical design. 
But still the 43 mm curves are quite good giving an indication that it is an excellent lens. The only thing you cannot say that it is better or worse than the 28. The proof will be in the results. There is far more to lens quality than numbers. 

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We are not comparing across brands. We are not even really comparing different cameras. They are both the same sensor etc. Field curvature is not something I look for in a good lens design, and it is not noticeably present in the 35mm APO Summicron SL, for example. I had the Q2 28mm and it performed for me as the MTF indicated -- it was soft in the corners. Soft enough that I eventually replaced it with a 550 dollar Sigma 24mm 3.5 lens that was sharper edge to edge. That is right there in the MTF chart of the Q lens. They are not hiding it, though surely it is not something they are probably excited to talk about. It was their first of a new generation of cameras, designed to a lower price point than their other lenses, for a 24mp body and almost ten years ago. One of their first with built in stabilization, first being reliant on software correction. It was quite an impressive design. It is sharp and lovely in the center of the frame, but the edges get pretty soft on the higher resolution models (I did not have the Q, so it may well have been obvious even then). By contrast, this 43mm looks stellar across the frame. Of course there is more to a lens than just MTF charts, but in the absence of copies on hand to test, the only objective criteria we have are these MTF charts, and even a cursory glance at them will tell you that one lens looks a lot better than the other. In any case, we are going to find out shortly I hope. But for now the MTF is suggesting it to be a very notable improvement.

Edited by Stuart Richardson
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Thanks for this explanation!

From a pragmatic point of view I would say:

vor 11 Minuten schrieb jaapv:

So if they fall off towards the corners you may well be seeing a curved focal plane instead of a falloff in resolution/contrast, which often makes shorter focal lengths score “worse”

Absolutely, however the result for the photographer is the same, isn't it? Thus I would dare to say, that this doesn't matter to the MTF results either because they show just results which in principle should be visible as well. 

vor 16 Minuten schrieb jaapv:

The only thing you cannot say that it is better or worse than the 28. The proof will be in the results. There is far more to lens quality than numbers. 

Agree absolutely, also my experience over the years. 

Thx again!

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To me, the MTF curves on this lens only show that it is an excellent lens from a technical standpoint, which means Leica put a lot of effort into it.  The MTF curves of the 50mm f/2 Apo-Summicron M are technically superior to the 50mm f/1.4 Summilux M, but I prefer the character of the latter for a lot of work, at any given aperture.  I'm anxious to see what this new puppy can do.

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