GX1 or G5? - Page 3

xdayv · #21 July 26th, 2012, 06:35 AM

I had the G3 and GF1 at the same time before, the G3 is not that much bigger compared to the GF1, except for the viewfinder hump towards the back. I guess a GX1 is a way to go!

and yeah the batteries are the same, it's a big plus.

Iansky · #22 July 27th, 2012, 06:00 AM

I replaced my GF1 for the GX1 at Christmas time and did consider the G3 but wanted a smaller footprint camera to carry.

I am delighted with the build & IQ of the GX1 and used it as my primary camera on a trip to India earlier this year (in place of X100), it performed in a faultless manner but due to bright sunlight, I did need to used the LVf2 that is a worthy addition and quick to fit/remove as well as being equal to the EVF on the G3.

I know there is not a big difference size wise but every little bit helps, I have also replaced my 20mm lens with the PanaLeica 25mm f1.4 and find it an amazing combination to use.

These two taken with GX1 + 25mm f1.4

The two images below were taken with GX1 + 45-175X lens

Wasabi Bob · #23 July 27th, 2012, 09:20 AM

Quote:

Originally Posted by meyerweb

They're really very different cameras. Other than the fact that they use the same lenses, and have very similar sensor performance (it would seem), they have little in common.

The G5 has a built-in EVF, a larger grip, and an articulated screen.

Given the fact that GX1 and G3 are using virtually the same sensor design, the G5 now stands out in a class by itself. There is obviously the price difference.

Sensor:
G3 – 16 MP (analog) Live MOS sensor
G5 – 16 MP (digital) Live MOS sensor (same as GH2)

Processor
G3 – Venus 7 HD
AVCHD 1080/60i (sensor output 30fps)
720/60p Motion JPG 720, 30fps

G5 - Venus 7 FHD
AVCHD 1080/60p/60i　（sensor output 60fps)
720/60p MP4 1080, 720, 30fps
This new processor now makes use of the sensor’s full potential, so in essence it’s better than the GH2.

Viewfinder
G5 now includes the eye sensor

LCD
G3 - 3.0”460K pixel
G5 - 3.0”920K pixel

Touch Lever
G5 now offers the touch lever to control the power zoom lens.

Burst Speed
G3 – 4 FPS
G5 – 6 FPS

p00h · #24 July 30th, 2012, 07:33 PM

Quote:

Sensor:
G3 – 16 MP (analog) Live MOS sensor
G5 – 16 MP (digital) Live MOS sensor (same as GH2)

Processor
G3 – Venus 7 HD
G5 - Venus 7 FHD

Note that while G3 and GX1 do use the same sensor, the software on the latter are closer to G5 (it offers the same high ISO) and the video engine was upgraded as well (with MP4 capabilities, at 30p).

As for 'Digital' vs 'Analog' it is more of a marketing gimmick for an internal component optimization, not an actual sensor change - AFAICT there's now a new chip that does nothing else than sequencing the MOS, and this chip communicates with the CPU 'digitally', so in turn the CPU can do other things faster. Which also may explain how they got 60p working, and faster sequential shooting modes. Still, it's an important optimization - and I am curious to see if videos would finally be free of rolling shutter effects.

Wasabi Bob · #25 July 30th, 2012, 07:49 PM

Quote:

Originally Posted by p00h

Note that while G3 and GX1 do use the same sensor, the software on the latter are closer to G5 (it offers the same high ISO) and the video engine was upgraded as well (with MP4 capabilities, at 30p).

As for 'Digital' vs 'Analog' it is more of a marketing gimmick for an internal component optimization, not an actual sensor change - AFAICT there's now a new chip that does nothing else than sequencing the MOS, and this chip communicates with the CPU 'digitally', so in turn the CPU can do other things faster. Which also may explain how they got 60p working, and faster sequential shooting modes. Still, it's an important optimization - and I am curious to see if videos would finally be free of rolling shutter effects.

I believe the G3 & GX1 go out to ISO 6400. The G5 goes to 12,800. The video engine (Venus) on the G5 is a new engine, newer than the GH2, GX1 and G3. Regarding digital vs analog, it's more than a marketing gimmick. Yes, it's all about getting things done faster which it appears that they've accomplished. In the previous models you had an A-D converter, whereas with the GH2 and G5 the data path is digital, so the integrated A-D converter is no longer used.

xdayv · #26 July 31st, 2012, 07:44 AM

whew, I'm getting a GX1 at roughly USD400+ equivalant. Next week that is.

p00h · #27 August 1st, 2012, 02:51 PM

Quote:

Originally Posted by Wasabi Bob

I believe the G3 & GX1 go out to ISO 6400. The G5 goes to 12,800. The video engine (Venus) on the G5 is a new engine, newer than the GH2, GX1 and G3. Regarding digital vs analog, it's more than a marketing gimmick. Yes, it's all about getting things done faster which it appears that they've accomplished. In the previous models you had an A-D converter, whereas with the GH2 and G5 the data path is digital, so the integrated A-D converter is no longer used.

Well, my GX1 goes to 12800. It's not spectacular, but it's going to be the similar on G5. See samples here.

As for the A-D converter, I've found that Olympus has a nice guide over how such sensors work
- so they are still there with a 'digital' MOS (the name denotes output type, not the process) but instead of one for the whole sensor, there is one for each column, and conversion is parallelized - hard to say if this is exactly what Panasonic did, but if so you're right it's more than just an gimmick.

PatrickVA · #28 August 1st, 2012, 09:08 PM

I have a GX1 on order, I'm going to need some work on my skills and composition, and now I'll have to stop blaming the camera.

hkpzee · #29 August 1st, 2012, 09:16 PM

Quote:

Originally Posted by xdayv

whew, I'm getting a GX1 at roughly USD400+ equivalant. Next week that is.

That's a great price for a wonderful camera. Have fun with it...

With_Eyes_Unclouded · #30 August 1st, 2012, 09:42 PM

Quote:

Originally Posted by Wasabi Bob

G5 – 16 MP (digital) Live MOS sensor (same as GH2)

Is this confirmed? (the sensor being the same as in the GH2)