|25mm, GM5 with 42.5mm, 15mm, and 12-32mm|
|Smaller than a $1 bill|
It seems impressive that internally, it is much the same as the Panasonic GX7. The big compromise is that the mechanical shutter can't go faster than 1/500th of a second. If there is any chance you would mistake this for a camera for sports, you'll notice the shutter speed limitations immediately. For many people, this might not be a problem because the electronic shutter goes to 1/16000th of a second, jello effects included, as necessary. Thinking back, my first SLR had a top shutter speed of 1/750th of a second when 1/1000th of a second was a premium shutter speed.
The other significant compromise is the battery capacity, at 680 mAh. I'm not sure whether the GX8 battery is worse for the size or not. The GH4 is the only micro Four-Thirds body that doesn't seem to have a lower than expected battery capacity, at 1860 mAh. I joked when I bought the GM5 that I should buy another 14 batteries. Pressing the DISP button enough times will shut off the rear display for normal use, and you can still press the Play button to display your photos and video.
|GX8 isn't huge but the GM5 is tiny|
|GX8 behind the GM5|
|GH4 behind the GM5|
|Olympus E-5 behind the GM5|
As you can see from these photos, it is tiny. All of these camera bodies use the same size (13.0mm x 17.3mm) of sensor, although the dSLR contains the mirror box which makes everything much bigger.
|Four-Thirds 35-100mm f/2.0 obscures the GM5|
|The optional grip on the GM1|
I was quick to order the strap you can see in my photos of the GM5. US$37 + shipping seems a small price to pay for the security of photographic equipment. I pay about the same for my phone cases, although I can feel safe dropping my phone. Nauti Straps are made from cable used in the sailing industry, so they're quite strong.
I've also ordered two batteries and a small case, so that I can carry the miniature kit with me. The Lowepro Urban Reporter 150 Messenger Bag for Micro-compact DSLR or CSC Cameras is currently US$29.99 at Adorama and seems appropriate for the GM5 and a few lenses and supplies. Strangely, I've been using the lens bag for the 42.5mm f/1.7 to hold the GM5 + kit zoom lens, and it sits just above my GH4 in my big bag.
I'm still working on taking time to go out with the GM5 and a few lenses to get some photos. At the moment, I either take everything with me or just the GM5 and one lens.
|The 25mm f/1.7 isn't always resistant to flare, even w/hood.|
Update 2016.08.10: Trying the GM5 in lower light but not complete darkness is frustrating. Around sunset, it didn't want to lock focus as quickly as the GX8 or GH4. Obviously, the small size doesn't allow as much processing power, but smart phones still do well. The GM5 actually seemed better in the dark, but it might be that I had lower expectations at that time.
It is still a lot of fun. I have a bag for the GM5 and easy pockets up top for the 15mm f/1.7, 25mm f/1.7, and 42.5mm f/1.7. There is also room for the Olympus 8mm f/1.8 fisheye, extra cards, and the two extra batteries that are so necessary for a few hours of use.
As you can see from these photos, the GM5 can capture action shots, with some anticipation. It isn't a sports-oriented camera body but it can be used in a pinch. These were taken with the kit 12-32mm f/3.5-5.6 zoom. The 32mm isn't nearly long enough but considering the tiny lens and the idea of keeping a complete kit so tiny, it's more than good enough. I also carry the 42.5mm f/1.7, 25mm f/1.7, 15mm f/1.7, and 8mm f/1.8 fisheye lens and they keep it competitive, but as I've already mentioned, it isn't the fastest in lower light conditions.
The 12-32mm f/3.5-5.6 is unusual for a kit lens. It is quite sturdy, and seems to contain more metal than most kit lenses. Of course, this body/lens kit had a suggested retail price of US$899.99, so that might have something to do with it.
|Oly 40-150mm f/4.0-5.6 and GM5 with 12-32mm f/3.5-5.6|
|Pana 12-32mm f/3.5-5.6 and GM5 with Oly 40-150mm f/4.0-5.6|
|Olympus 40-150mm f/4.0-5.6 and Pana 35-100mm f/2.8|