tn1krr wrote:
It actually seems to be more of a BSI sensor vs. non-BSI, current BSI tech has more self-heating. Original Sony A7R is better in long exposures than the latter models. Same has been observed for Nikon D810 vs D850 (by Lloyd Chambers, at least), older non-BSI model is better when exposure times get longer; BSI tech shows way more hot pixels in this case too.
It's more than just that though. The A7x bodies are already starting from a higher threshold.
Here's a couple dark frames back when I still used to have a D750 of the D750 compared to the A7r in thermal noise. Taken on the same night just a couple minutes apart.
lightskyland wrote:
What he means is, the ability to see your exposure changes live in the viewfinder, not just a positive or negative number.
Ah, fair enough, but that's always been a feature of any mirrorless having live histogram in EVF. Of course we get that with LV shooting on a DSLR, but not as convenient in normal shooting.
Vcize wrote:
It's more than just that though. The A7x bodies are already starting from a higher threshold.
Here's a couple dark frames back when I still used to have a D750 of the D750 compared to the A7r in thermal noise. Taken on the same night just a couple minutes apart.
You're right that the A7rII made it even worse with BSI, but the original A7x's were already pretty bad relative to the other cameras of the time.
Great examples. I have this vague recollection that D750 was particularly good in this area and 24 MP sensor were overall better than the 36MP one's. But you are right; the Sony never were leading in this sense; I quess it comes to small size, continuous liveview processing etc. Today BSI seems to be quite a factor too with D810 handily beating the D850 in this when exposure times get longer.
Hello Xpfloyd. You and I agree. I think you misread my comment. "I did a quick test with my Kmashi 15000 mAh external battery power bank and unless there is some internal setting I don't know about, the battery or a fake battery needs to remain in the camera for external power to charge the camera." I was responding to another comment asking if the camera would run with a direct connection to an external power source without a fake/dummy battery in the camera.
Can the A7RIII be powered by USB-External Battery Pack for long timelapse shooting? Just wondering if I can just plug in the battery pack instead of messing with this dummy battery.
Fred Miranda wrote:
I didn't notice any difference. Perhaps it's because you've tried many lenses on it in a very short period of time. I just took a look at my sensor and it had one speckle on it. (After testing the new camera with at least a dozen lenses)
Well, Sony has asked me to send in the camera for evaluation after seeing the photo. I think they are concerned about what appears to be the oil spots on the sensor. I'm going to try to have it cleaned by a reputable local photography company first to see if the issue persists. If that doesn't work, I'm sending it in to Sony.
Messier77 wrote:
This is more dust than I had in 6+ months with my A7rii.
FYI, the bigger, less intense balls could be on the sensor but I usually get those from something farther away from the sensor. Rear element dust or internal lens dust near the rear element.
Gary Clennan wrote:
Can the A7RIII be powered by USB-External Battery Pack for long timelapse shooting? Just wondering if I can just plug in the battery pack instead of messing with this dummy battery.
I think that's supposed to be a feature that it now can be powered via USB? I would love confirmation of this also.
Gary Clennan wrote:
Can the A7RIII be powered by USB-External Battery Pack for long timelapse shooting? Just wondering if I can just plug in the battery pack instead of messing with this dummy battery.
I think that's supposed to be a feature that it now can be powered via USB? I would love confirmation of this also.
GMPhotography wrote:
Lol it is really is just glass but it’s pretty durable
So the final verdict is no oil spots, but plenty of dust on the sensor. The splotches that looked oil spots appear to be the result of internal lens dust.
te4o wrote:
Does the 7r3 transfer photos at 3.1 speed over the USB C to computer indeed?
I believe so. I haven't measured yet but looks to be similar load time ( at least on my USB 3 compatible iMac) compared to plugging Sony SF-G Series UHS-II SDHC Memory Card into the Sony USB 3.1 SD card reader that I normally use.
I really don’t recommend using the camera to download. To me and this me talking not the engineer talk but you run the risk of screwing up the camera port after time and just putting more wear on the camera. If your using the Song G cards and their reader than running as fast as you can anyway. Do what you will but do think about this. I shoot tethered a lot and I don’t want to risk that port
Gary Clennan wrote:
Can the A7RIII be powered by USB-External Battery Pack for long timelapse shooting? Just wondering if I can just plug in the battery pack instead of messing with this dummy battery.
I haven't tested extended time lapse yet with my external battery pack and the NP-FZ100 in camera. I did notice Sony's NPA-MQZ1K Multi Battery Adapter Kit comes with a dummy battery...
Maybe someone else on the forum has tried this with the A9 or the A7rIII ?
I checked my sensor. About 8 bits of dust, normal stuff that blew right off. Now the sensor has nothing on it. I use canned air, that I clear first before using and have for years. I also wet clean if needed. I have cleaned my sensors from the Leica, Canon and Sony for a long time and just do it lightly when wet cleaning. No big deal. When I lived in China I got a Canon shipped (new) from Hong Kong and the sensor was like they had left the camera on a shelf with no lens or body cap. Worst I have ever seen. Took a few weeks of cleaning each day to get the internal area clean, it was horrible. I didn't have any of the modern techniques (I was out in remote areas) and used a special sensor liquid with lens paper and my finger in the lens paper. lol
