GMPhotography wrote:
This whole USB thing is confusing as hell. I just bought a G tech Raid array and none of it makes sense. It’s working fine but still confusing
Recommend close reading of documentation and testing thoroughly (as I'm sure you'll do!).
USB3 is currently a shit-show; you have two connector standards, two power standards, multiple speeds, and then there's Thunderbolt which has it's own set of rules, and God only knows how cables are labeled.
[if your RAID array was built for Mac, it was probably Thunderbolt already, so no drama there as long as you used the cable that came with it]
Reading the reactions to the A7riii, I wonder if Sony rushed it to the market a bit early. Several reports surface regarding AF "pumping", others about the eye-AF to not work as expected (hit rate lower than previous cameras, focuses on the brow instead, based on comments in the forums here or at Dpreview, or , for example). Could be a firmware thing. But would you agree to this observation or would you think it to be affecting only a small batch of cameras?
Holger wrote:
Reading the reactions to the A7riii, I wonder if Sony rushed it to the market a bit early. Several reports surface regarding AF "pumping", others about the eye-AF to not work as expected (hit rate lower than previous cameras, focuses on the brow instead, based on comments in the forums here or at Dpreview, or , for example). Could be a firmware thing. But would you agree to this observation or would you think it to be affecting only a small batch of cameras?
Hmmm. I’ve been trying to replicate these problems, but haven’t yet been able to. But some trusted people have had them. So it could be a batch, or it could be very specific combinations of circumstances and settings I haven’t tried...
I really don’t want to say anything yet as I really need to get my head in the game on this and have been rushed all along, plus changing settings and such is not a good time to call anything. I want to take all the variables out of the equation but I have noticed plusing than it went away too. It’s not consistent yet to blow up the internet. I’m very careful about that. Plus I’m NOT looking to be the you tube hero either if you know what I mean. I want to be accurate not dish out bad info.
Also most users do not realize how Sony focusing works. It’s based on vertical lines not horizontal and folks need to realize this . Your shooting a round bowl it’s going to have its troubles if you know what I mean.
Fred (& other experienced Sony users), do you have Phase Detection on or off?
And is it something you frequently switch?
My meagre understanding is that for non-moving subjects Phase Detection on, and moving subjects Contrast Detection is better. I may be way off here, I’ve not had this option before.
. Can you clarify your choice and how you switch quickly (if you do)
frank gross wrote:
Fred (& other experienced Sony users), do you have Phase Detection on or off?
And is it something you frequently switch?
My meagre understanding is that for non-moving subjects Phase Detection on, and moving subjects Contrast Detection is better. I may be way off here, I’ve not had this option before.
. Can you clarify your choice and how you switch quickly (if you do)
Thanks
1st off, what lenses are you using? With native E mount lenses (and Sigma Art/Global vision on MC-11 adapter) you cannot turn phase detection on/off, You can turn "Phase Detect. Area" display on/off but the lenses mentioned above are always using hybrid AF (both PDAF and CDAF).
With some adapters (Sony LA-EA3, Metabones green mode?, MC-11 with non-ART/Global Vision lenses) you can turn "AF System" into either "Contrast AF" or "Phase Detection AF". "Contrast AF" in this case is terrible slow, does not support AF-C etc., so with these lenses you practically always want to use "Phase Detection AF".
Thanks for this. lol spend the rest of my day wrapping my head around it 😊
I only have one lens thus far for this camera -Sony sonar 55mm/1.8
tn1krr wrote:
1st off, what lenses are you using? With native E mount lenses (and Sigma Art/Global vision on MC-11 adapter) you cannot turn phase detection on/off, You can turn "Phase Detect. Area" display on/off but the lenses mentioned above are always using hybrid AF (both PDAF and CDAF).
With some adapters (Sony LA-EA3, Metabones green mode?, MC-11 with non-ART/Global Vision lenses) you can turn "AF System" into either "Contrast AF" or "Phase Detection AF". "Contrast AF" in this case is terrible slow, does not support AF-C etc., so with these lenses you practically always want to use "Phase Detection AF".
Holger wrote:
Reading the reactions to the A7riii, I wonder if Sony rushed it to the market a bit early. Several reports surface regarding AF "pumping", ...
My A7Rii pulses when using the 90mm macro in CAF mode, so I don't think this is new with the iii.
Still traveling, and my new iii is still sitting at my condo waiting to be unwrapped! Get home tomorrow night!
frank gross wrote:
Thanks for this. lol spend the rest of my day wrapping my head around it 😊
I only have one lens thus far for this camera -Sony sonar 55mm/1.8
This very same thing has actually confused some very skilled camera testers too. Sony documentation is not that stellar and since with adapters there are different options this can be confusing.
BTW, you started your FE lens collection well. That lens is stellar for the system; small, supersharp, fast/silent AF. Bought it immediately when it became available when original A7R was launched and still love it; it spends more time on my A7RIII than any other lens.
I noticed focus pumping but:
It happens when camera had less light to work with, F8, low light. It’s different from hunting, pumping is the right word.
F2.8: hardly there
On 16mm F2.8 E mount lens, it’s noticeable
On 28/2 its much less noticeable
I think its not a problem at all.
DavidBM wrote:
Hmmm. I’ve been trying to replicate these problems, but haven’t yet been able to. But some trusted people have had them. So it could be a batch, or it could be very specific combinations of circumstances and settings I haven’t tried...
Okay good news bad news. First the good news its not your camera, its your lenses. I just went out with My Batis 135, Sony FE 85 1.8, Sony 50mm 1.8 yea the cheap one.
Okay in AFC does not matter what aperture or even what focus area the Batis 135 is dead on perfect. No pumping
FE85 1.8 where i noticed it first there is some and its workable but we could use a firmware update. Im seeing it in Zone and also in Flexible spot (small). Ill test more in other Focus areas but its where i notice it the most.
FE 50mm 1.8 I have version .3 firmware for this lens. I just got it but I think there has been a update that i need to find. But right now its very obvious pumping. Kind of a fun lens though for 200 bucks. My 28 F2 comes friday so I will check that.
But good news is its not your camera the Basis 135 is perfect with AF. Now you may run into it with other Sony glass but thats all i have i have on hand with AF
I find that going to the medium flex works very good with any lens that tends to pump focus or when conditions are tough. Never use the large and normally use the small but again, if there is a problem and I don't want to lose shots, I use the medium. For the Canon 24-70 II, no real issues at all unless poor conditions that would cause even the Canon camera to have issues and then the medium does great.
Thanks for clearing this up for me. I see now that I was confusing showing or not showing the PD area on the screen with using or not using PD.
And that being able to use Phase Detection (PD) is a function of the lens itself.
I kinda feel like the menu option of showing the area should be greyed out if the mounted lens can’t support it.
I’m kinda disappointed that my first lens can’t support Phase Detection. But c’est la vie. I really wanted small, light, fast aperture lenses for the Sony. Size was a big factor in switching from dslr. Some of the high end primes (which I imagine all support PD) are bigger than the equivalent L series primes for canon.
tn1krr wrote:
This very same thing has actually confused some very skilled camera testers too. Sony documentation is not that stellar and since with adapters there are different options this can be confusing.
BTW, you started your FE lens collection well. That lens is stellar for the system; small, supersharp, fast/silent AF. Bought it immediately when it became available when original A7R was launched and still love it; it spends more time on my A7RIII than any other lens.
