d******a
发帖数: 32122 | 1 发现连国内的山寨手机一加五都支持相位对焦了
奥巴 松下 应该找两块豆腐 | s****r
发帖数: 31686 | 2 em1 支持，别叫了
：发现连国内的山寨手机一加五都支持相位对焦了
： | c*****e
发帖数: 757 | 3 国内手机基本都是直接拿sony的传感器来用，集成了相位对焦点不意外。
松下应该是死认反差对焦了。
奥巴如果全面更换成sony的传感器，新出的机型也会有相位对焦。
【在 d******a 的大作中提到】
: 发现连国内的山寨手机一加五都支持相位对焦了
: 奥巴 松下 应该找两块豆腐
| d******a
发帖数: 32122 | 4 我的感觉是，奥巴仅仅在最高级别的EM1上实现了相位对焦
是故意的商业行为
松下是什么考虑，不知道
在 奥巴的 E-PL 或者 EM10级别实现相位对焦前，我是不会升级了
【在 c*****e 的大作中提到】
: 国内手机基本都是直接拿sony的传感器来用，集成了相位对焦点不意外。
: 松下应该是死认反差对焦了。
: 奥巴如果全面更换成sony的传感器，新出的机型也会有相位对焦。
| s****r
发帖数: 31686 | 5 商业行为都是故意的
另外到此一游照不需要香味对焦
：我的感觉是，奥巴仅仅在最高级别的EM1上实现了相位对焦
：是故意的商业行为 | d******a
发帖数: 32122 | 6 我有几个老43的镜头
相位对焦快多了
但是奥巴就是要逼我买em1
冤大头，谁当啊
【在 s****r 的大作中提到】
: 商业行为都是故意的
: 另外到此一游照不需要香味对焦
:
: ：我的感觉是，奥巴仅仅在最高级别的EM1上实现了相位对焦
: ：是故意的商业行为
| s****r
发帖数: 31686 | 7 对焦是机身的事儿， 和镜头有啥关系？ 对焦的时候， 机身指挥镜头玩什么地方移动
而已
【在 d******a 的大作中提到】
: 我有几个老43的镜头
: 相位对焦快多了
: 但是奥巴就是要逼我买em1
: 冤大头，谁当啊
| r*******i
发帖数: 1640 | 8 当然有关系，机身指挥你动你得动得对才行
不然为啥像Sigma这种副厂头还要买镜头底座微调对焦？
【在 s****r 的大作中提到】
: 对焦是机身的事儿， 和镜头有啥关系？ 对焦的时候， 机身指挥镜头玩什么地方移动
: 而已
| s****r
发帖数: 31686 | 9 那是信号协议问题。镜头才不管什么相位还是对比
：当然有关系，机身指挥你动你得动得对才行
：不然为啥像Sigma这种副厂头还要买镜头底座微调对焦？ | d******a
发帖数: 32122 | 10 就像你看到范冰冰在等你，可是你下身不听大脑指挥 --- 范冰冰在等太监
【在 s****r 的大作中提到】
: 对焦是机身的事儿， 和镜头有啥关系？ 对焦的时候， 机身指挥镜头玩什么地方移动
: 而已
| s****r
发帖数: 31686 | 11 无知，惊人的！ 不是下身的问题，你该看脑科了
随便谷歌一下，看见这条非权威答案，但是有道理：
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← Sony Alpha Full Frame Lenses
Sony Alpha Forum
Does the Sony FE 24-70 f/2.8 GM support ph...
Like This
Packafoma28 Sep 2016
I recently purchased an a7R II along with a Sony FE 24-70 f/2.8 GM lens (
SEL2470GM). I bought the lens on eBay. It was listed as manufacturer
refurbished and does appear to be genuine and in excellent condition.
Both the camera and lens are working great for the most part. However, I was
surprised to discover that the lens is not capable of phase detection
autofocus.
I have updated the camera firmware to ver 3.30. I cannot find any firmware
updates for the lens, which is running ver 01.
When using AF-C, the lens hunts for focus continuously with rapid, jittery
movements. It takes a long time to get a lock even if the aperture is wide
open and the subject is brightly lit and not moving. Meanwhile, AF-S works
beautifully.
In the settings, Phase Detect. Area and AF System are grayed out along with
a message that says “Invalid with this lens.”
Along with plenty of Googling, I have scoured Sony's website and B&H for
some mention of phase detection in their descriptions of this or any Sony
FE lens. It does not seem to be a spec that they ever list. Yet, I believe
at least some lenses are compatible with PD. I found one post on this site
that indicated that the Sony FE 50mm f/1.8 (SEL50F18F) works with PD. And I
saw a post about a lower-end zoom that supposedly works.
So I have a few questions:
As in the title: Does the Sony FE 24-70 f/2.8 GM support phase detection AF
on the a7R II? I would be surprised that a native lens from their premium GM
line would not, and some posts have indicated that all Sony native lenses
should be PD capable. I know that A-mount lenses can even use PD with an
adaptor.
If some Sony native E-mount lenses are not compatible with phase detection,
which ones are? I can't find a list anywhere, and like I said, there is
never any mention of it in the specs.
If you have a FE 24-70 f/2.8 GM, what firmware version does it have?
Thanks!
Like This
Packafoma29 Sep 2016
I guess no one who is active in the Sony Alpha Forum owns a Sony FE 24-70 f/
2.8 GM lens. My question really pertains to all Sony E-Mount lenses
though.
Here is the end of a chat I had with a Sony support tech. The news was
disappointing. I still find it hard to believe that Sony’s native lenses
lack a hybrid focus capability that works with A-Mount and even Canon EF.
I’m coming from Canon and Panasonic cameras. So if I’m missing something,
please let me know!
Like This
Packafoma01 Oct 2016
For anyone interested in more about this, we'be been discussing it here:
https://www.dpreview.../thread/4060569
(Hint: The Sony support guy was clueless.)
Like This
Golem01 Oct 2016
A lack of response is due to a non-seqyitor being considerably
difficult to address. Only difficult, or tricky, but not impossible
..... so, OK, I'll bite:
Lenses do not support or fail to support CD or PD versions of AF.
Lenses take orders from the camera body. The body tells the AF
motor to go ahead or go back, how fast etc etc. How the camera
body "decides" which commands to issue to the lens is none of
the lens's bidnez. Lens get commands, lens obeys. Body makes
"decisions" based on whatever detection systems that particular
model of body has onboard. It doesn't negotiate with the lens or
conference with it. It just tells the lens "Do this, right NOW".
IOW, had you asked whether a certain tripod supported CD AF
you'd find no one has much of an answer to that, or whether that
tripod supports "i-TTL-HS- wireless fill-in flash" .... same problem
.
That dog won't hunt.
And acoarst the Sony documentation, and marketing material,
doesn't mention anything neither ... cuz no one is ever spozed to
ask any non-sequitors :-)
"When using AF-C, the lens hunts for focus continuously
with rapid,jittery movements. It takes a long time to get a
lock even if the ........
Meanwhile, AF-S works beautifully."
That is all well and good. Of course AF-C "takes a long time to
get a lock" while AF-S "works beautifully". A "long time"
; ? How
about more like "never" ? "C" means continuous. "
Continuous"
isn't continuous if it locks on, right ? So acoarst "S"
; does lock
on, cuz "S" means "single" ... one single final
decision about
what to focus on, and then stay put [lock on].
If you correctly quoted the error message, then I would hafta
call that message poorly worded. “Invalid with this lens.” ?&#
160;
I do see how someone may then think the lens is an issue here.
Please double check all choices that lead up to that message,
cuz it just makes no sense at all.
：就像你看到范冰冰在等你，可是你下身不听大脑指挥 --- 范冰冰在等太监
： | y*b
发帖数: 3190 | 12 官翻的em1 就500左右吧好像
我估计Olympus将来有可能下放相位对焦。
【在 d******a 的大作中提到】
: 我有几个老43的镜头
: 相位对焦快多了
: 但是奥巴就是要逼我买em1
: 冤大头，谁当啊
|
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