Panasonic DMC-GX1 choosing strange settings
I have just bought a Panasonic DMC-GX1, testing it out in Programme (P) mode which I hoped would behave sensibly, but am finding something odd.
With the kit 14-42 lens (H-PS14042) everything is fine. I took some photos of my daughter in the sunshine and they look superb. The metadata for a typical photo shows 1/250s, f/5, ISO 160 on focal length 14mm.
But I also have the 45-175 power zoom (H-PS45175) and this is where things are going strange. In the same sunny outdoors setting it decided to shoot with 1/2500s, f/18, ISO 12800!! (This is at focal length 72mm). As a result the photo shows very obvious noise, especially on skin tones.
This lens has Optical Image Stabilisation so I don't see why it decided to go with such an excessively short shutter speed; and even if it needed this, why should it close down as far as f/18? This lens is f4-5.6 at maximum aperture.
Camera body firmware is 1.1 and lens firmware is also 1.1. Camera firmware is latest. I see that there is a version 1.2 lens firmware available, but the release notes just say "Speed of AF, consecutive shooting performance of AFC is enhanced in use with DMC-GH3.". No mention of GX1 or of programme mode.
Has anybody seen this before, or have any suggestions for why it might be doing this? Obviously I could just go with aperture priority, but even then I still don't want the camera choosing ridiculous shutter speed and sensitivity.
hi and welcome first you could have a faulty lens try cleaning the contacts then also look at the switch for wide and telephoto
Solved: Turn It Off And On Again [TM]
Thanks for that. Well I did some more outdoor tests, this time with the 14-42 lens, and again it was choosing ISO 12800 (regardless of exposure adjustment). I even went to Menu > Rec > ISO Limit Set and set that to 400, and it still chose 12800.
Originally Posted by wave
So in the end I simply reset everything to defaults (Menu > Setup > Reset) and now it's fine.
I guess I must have accidentally twiddled some setting - it would be nice to know what it was so I can avoid it next time, but at least the problem is solved.
Ah... so the "cursor up" button also doubles up as ISO set. I guess I must have triggered this while trying to select something off a menu. And whilst auto ISO by default will never choose anything higher than ISO 1600, manually you can set up to 12800. At least I know now!
Note to Panasonic: plain engravings in silver buttons are very hard to read, even in good light. White on black would be much better.
Panasonic Lumix GM1 Review: Not quite a day after Sony made its announcement of two mirrorless cameras with full frame sensors in October 2013, Panasonic announced the Lumix DMC-GM1, a first truly "micro" Micro Four Thirds camera in the world. The Lumix DMC-GM1, can be seen as a pocketable camera with a 16 megapixel Four Thirds sensor. Compare to its big brother, CX7, the GM1 inherits almost all of the same imaging capability in smaller size. However, while the GX7 can shoot 1080P at 50fps, the GM1 can only manage the same frame rates at 1080i, although it can shoot Full HD at 25fps.
As far as we know, AVCHD video file (MTS/M2TS extension) provides you with the enjoyment of up to 1080p Full-HD visual image quality. But it's always the real pain to play and edit AVCHD footage on Mac, including FCP, FCE, iMovie, QuickTime, etc. Aunsoft iMedia Converter for Mac, a professional AVCHD to Mac Converter, can transcode AVCHD to other 1920x1080p format for easier editing. For instance, this AVCHD converter provides Apple ProRes 422 and Apple ProRes 444 codec to read AVCHD in FCP.
Below is step-to-step tutorial about how to transcode Panasonic Lumix GM1 AVCHD files to 1920x1080p Apple PrRes 422 HQ for FCP.
Step1: Import or drag & drop AVCHD 1920*1080 footage
When you start Aunsoft user-friendly Video Converter for Mac, the clear instruction in the main interface is clearly show you the main function icon.
You can import Panasonic AVCHD content via clicking the icon in the upper corner or just drag them to the program directly.
If you shoot 1080/50i/60i AVCHD recordings with GM1, you can click “editor tool” icon to de-interlance it to 1080/50p/60p for flawlessly video quality.
Step 2: Select ProRes 422 as export format for FCP importer
Click "format" and under the FCP menu, you can clearly see proper formats for FCP, including ProRes 422 and ProRes 444, the most friendly format for FCP. You can also enter FCP in the search bar directly, even faster.
ProRes 422 HQ is recommended here for offering even greater headroom to preserve the quality of even the most demanding.
Step 3: Set video size as 1920*1080 for output ProRes 422 MOV
Click "settings" to set Video Size as 1920*1080 or as original to maintain output format as original AVCHD video size and HD quality.
Before transcoding AVCHD to MOV with iMedia Converter for Mac, you can also adjust other settings, like video bitrates, audio channels, sample rate, etc.
Profile list make you easily view the profile of source AVCHD materials and target file, as well as your free disc space. If you batch convert several AVCHD contents, you can click yellow triangle icons to view different tasks.
Step 4: Transcode Panasonic GM1 AVCHD to 1920*1080P ProRes 422 MOV
Click "Conversion" icon to transcode AVCHD to 1920x1080P ProRes 422 MOV. With just a click on "Open output folder", you can locate the export ProRes MOV easily.
What’s more, Aunsoft iMedia Converter for Mac is versatile, which can transcode AVCHD to iMovie, AVCHD to QuickTime, AVCHD to Avid, AVCHD to Adobe Premiere/Sony Vegas, AVCHD to FCE, etc. All my problems with AVCHD formats seem to be solved with all-in-one AVCHD to Mac conversion tool.