- Feb 21, 2012
- NYC Area
- Real Name
- Napier Lopez
I don't think the GH4 has the Sony sensor from the GH3. I read it was a brand new sensor.
Yeah, but they pretty much always say its a brand new sensor. Regardless of how useful DxO scores are, it seems somewhat odd that it would score so much in the vicinity of the other current gen M4/3 sensors if it's a completely new one (albeit still the highest ranking one so far). My bet is that it's based off of the old one with new circuitry and surroundings to help with heat issues. Either way, it's probably the best performing M4/3 sensor, if not necessarily a quantum leap.
Is this wide open, or at a comparable aperture?
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Both. I've done most of my testing with the 18-55mm f2.8-f4 though, as that lens at 55mm and F4 should provide the same DoF as the 35-100mm F2.8 does at approximately 41mm and F2.8. That's about as close as I'm going to get. Also worth noting that fuji tends to focus at the aperture you set it to; Panasonic(and Olympus) generally focus at whatever they deem to be the most convenient aperture.
Most likely a comparable aperture?
I've had success wide open, even with ND filters attached with C-AF focus.
Here's a link that might help demonstrate the X-T1's tracking ability
Here's an update to the original post as well
As long as I have Pre-AF on and High Performance mode on and stay within the center of the frame, I'm good to go!
I'm actually in the market to get the GH4, so I'm really thankful for this review!
Yep, I read those impressions a long time ago, and actually looked at them again today for any potential advice for my testing! Don't get me wrong, the X-T1 does what it can rather excellently, it's just rather limited in scope, relatively speaking. I spent a good hour or so trying the two cameras on my own dogs today, who are two tiny chihuahuas with much more erratic movements than the dogs and birds Dan is testing in those links. This all from very close. Literally the most difficult test I could possibly imagine for these two cameras. Neither was perfect, but I was probably more to blam
Something else I need to note, in this case I got the best results towards the end of my session, when I began using a custom AF array, a feature I hadn't tried out yet until today. I basically created a diamond shape covering most the middle portion of the frame, similar to many DSLR PDAF arrays, and got consistently good results this way as long as I did a decent job of physically following my dogs. And I was easily able to do that better with the GH4 than the X-T1. Quite frankly, it seemed any issues tracking the dogs were much more my fault than the cameras, and I doubt many DSLRs would have done better. The X-T1 may have had a better hit rate than the GH4 when I kept my subject perfectly centered, but my dogs rarely run in straight lines, haha.
At the end of the day, I don't think I would've been able to get any of these shots with another M4/3 camera without using old school pre-focusing or skillful MF (all SooC JPEGs, ISO 1600):
One of my dogs clearly has a bit of a michael jordan complex, hehe. A lot of these are off center, which I posted to show situations where the GH4 has some advantages over the X-T1. There are many more on the Sample flickr page, but I'm not posting full bursts of these because I don't want to have people nitpicking over something that was largely my own issue. Point is, I got a lot keepers.
I definitely agree that Panasonic have improved their JPEG engine in the GH4. I do hope they release a firmware update for the GX7 in that regard.
I haven't played around with the JPEGs other than lessening noise reduction, but I'm quite happy with them!