Kedacai: I can not catch the idea "The hallmark feature of the LX100 is its Four Thirds sensor which, as we mentioned, is significantly larger than any other zoom compact save for the PowerShot G1 X II and its predecessor. If Panasonic used the entire 16 megapixel Four Thirds sensor it would be twice the size of the 1" sensors found on the likes of the Canon PowerShot G7 X and Sony Cyber-shot DSC-RX100, but the camera's multi-aspect ratio requires a crop, so the difference is actually 1.5X"
What does muti aspect ratio mean?How does it affect the actual COMS area?
@Zoran K - in principle, yes. Using the larger sensor area and having more control in post processing is ultimately more flexible.
However, the difference in image quality between using a 2x crop sensor and effectively a 2.2x sensor isn't going to be particularly significant. This approach has two advantages:
1) The smaller image circle allows the lens to be slightly smaller - which is important on a camera this small.
2) We've tended to find Panasonic's inclusion of an aspect ratio switch encourages us to think more about the different aspect ratios and different compositions, which will be a creative benefit for some.
tbcass: There is a lot of emphasis on DOF control. Is there something wrong with me that I don't consider that of utmost importance? Overall the camera is very cleverly designed and looks quite impressive.
@gkdiamond - that's why most cameras allow you to stop the aperture down.
Unless you're hitting the minimum aperture on the larger format, there is no inherent depth-of-field advantage to shooting with a smaller sensor - using a smaller aperture and a higher ISO achieves much the same thing* on a larger sensor camera.
***The only reason I don't say *exactly* the same thing is because differences in sensor performance means the statement isn't true in every possible case.
yoshi1080: I really like Frazer's honesty and enthusiasm here. I love how he says “our marketing says it's …”, and how he smirks at that whole “LX7 lens scaled up” marketing stuff.
The line “unfortunately there's no touchscreen on this camera” was particularly surprising and should have been a cue for the interviewer to ask: well, why not? I guess he didn't have had enough sleep, he looks a bit tired. Too bad.
@gkdiamond - most companies consider UHD to be a '4K' format.
It's not helped by Samsung deciding to call the 17:9 version of 2160p '4K' and the 16:9 version 'UHD,' when almost everyone else considers them to both be '4K'
For now we're going to use the terms DCI (or Cinema) 4K to mean 4096 x 2160 and UHD 4K to mean 3840 x 2160, with both comin under the '4K' umbrella. If more consistency breaks out, we'll follow that.
@mosc - that's it exactly. We'll try to make sure there's more emphasis on that aspect, next time we're writing about a camera such as this.
Depth-of-field is simply the most readily quantifiable benefit but more generally a large sensor and a bright maximum aperture are the best way to offer better image quality.
The multi-aspect design uses different crops of the sensor to ensure that the diagonal angle of view is consistent, regardless of which aspect ratio you choose to shoot in. The result is that you never use the whole sensor area.
It's more easily demonstrated than explained, so if you roll your mouse over the differed aspect ratio numbers on [the diagram, further up the first page](http://www.dpreview.com/previews/panasonic-lumix-dmc-lx100/#ar), you can see the effect.
Brian Leser: This article says:
"Up until now, no company has been able to manufacture an APS-C-size CMOS sensor with backside illumination. "
but dxomark says
"The A5100 sensor..., a very good score for a 14-bit back-illuminated APS-C sensor and only two points behind the best of its type. "
Here's the dxomark link: http://www.dxomark.com/Reviews/Sony-A5100-sensor-review-Uncompromising-performance/Measurements-Sony-A5100-Excellent-sensor-performance
So I'm puzzled by the apparent contradiction.
I'm puzzled by that statement, too. Sony hasn't said anything to us about moving to BSI on APS-C (and they were very vocal about it with the 1" sensor in the RX100 II).
I'll see if I can get to the bottom of it.
mosc: Uh, I guess this wasn't a popular read but I have a small typo correction on slide 10. The Q-S1 doesn't use a 5.6x crop factor (1/2.33" sensor Q10 did) it uses a 1/1.7" sensor which has a massively smaller crop factor of a scant 4.7x
Yes, I know, nobody cares. Something is wrong in the internet and I should ignore it.
Using the 9.33 sensor diagonal of a popular 1/1.7" sensor, I make it 4.64x crop. I've updated the story accordingly.
[The diagram in the LX100 preview](http://www.dpreview.com/previews/panasonic-lumix-dmc-lx100#ar) is to-scale: the outer grey area is based on the pixel dimensions of the GX7, so you can see how much you'd gain by making the lens larger.
The one that puzzles me is 1:1 - why doesn't that use the full height of the sensor?
peevee1: DPR wrote: "Product image shown above is not final."
What image? Did you kink to an external site?
That comment is in the Panasonic press release but they didn't have any usable images at the time.
They've now provided one, so I've updated the story. Sorry about that.
Timbukto: Can't see the video yet, but given the specs I expect the Photokina model is tethered to the power cord, or they are swapping out batteries every half hour?
@Mustafa - I'll try to remember that next time we shoot one. It's probably a combination of nerves and frustration at having fluffed the same line for the fifth time.
marc petzold: I'm only asking myself, why did Leica Re-release the X2 as X-E now with just different optical style? It doesn't sold well during the past? Perhaps because that included lens was just 2.8, and not 1.7 like now onto the latest X Iteration. :)
The 'X' Typ 113 is now the flagship product in the X lineup, so the older model is rebranded X-E, apparently.
Randy Benter: The comment with photo 8 indicates "the new X-E isn't much different to the previous model X-2", but then there is no mention of any differences at all.
Are there ANY changes (improvements) other than finish and price?
Leica's current strategy appears to be to add the '-E' suffix to the previous model when the new one comes out, then lower the price.
M9 -> M-E
X2 -> X-E
cribanez: Could you please tell me the dimensions of a 1/4'' sensor?? I have found two different versions: 3.2 x 2.4 and 3.6 x 2.7. Which one is the correct??Thank you.
They may both be correct - each of theses sensor 'sizes' are actually sensor 'types': they are simple the nearest classification that a particular sensor falls into.
There is no single fixed size for any given sensor type.
Richard Franiec: Nice presentation, Richard,It really helped to envision size relationship to the hand.Saying that the G7X is one of the most capable cameras (in the segment) is like choosing one of the two available at this moment, other being RX100(MX)
Where's that said, out of interest? I can't find it in the video.
If it's text somewhere, I'll update it to make clear that I mean this and the RX100s are the most capable (compared to small enthusiast compacts, not just in comparison to each other).
You can't see the video? Is anyone else having that problem?
Jogger: No 4k recording?
@Cheng Bao - I'd forgotten the Samsung (it's been a long week).
I was referring to stills sensors. The Samsung is the first APS-C stills camera to shoot 4K.
Almeida: How is this a "portrait lens"?
It's not clear how the original story with placeholder text got published. It's the downside of trying to collaborate between Germany and the west coast of the US.
We've not yet seen any 4K capable APS-C sensors that I can think of.
tommy leong: "...On the right side of the camera you'll find the cover which hides the I/O ports (shown later) and the lens at its full telephoto position. ".What does this mean ? the cover hides the lens at full telephoto ?
I've amended that text. It was just trying to explain that the two side-on views of the camera showed the different extents to which the lens extends.
2eyesee: I've seen multiple sources (PhotoLint and Imaging Resource) state that the screen is NOT a touchscreen. This need clarification and correcting if necessary.
I haven't got the camera, so I can't be sure. I've put the question to Panasonic but have a horrid feeling we've got this wrong, so have amended the article.
That description could well be a description of the GM5, which we were shown at the same time as the LX100 - handing them back and forwards amongst ourselves as we wrote. If we're wrong (and it looks like we might be), then I'm really sorry about any confusion we've caused.