[Sony/罪大滔天]相機集中討論區 (127) 2450 f2.8G 2月21發佈?

1001 回覆
6 Like 2 Dislike
2024-02-27 00:12:56
呢度有冇師兄係用CaptureOne?
LR貴到頂唔順轉戰咗
2024-02-27 00:19:31
capture one應該貴過LR喎
2024-02-27 00:28:10
sony 支wow factor camera 到底會係咩呢
2024-02-27 00:29:07
35??好似仲有 zesis 35mm 1.4,$6480,不過舊時代設計黎,又重又金屬面
2024-02-27 00:30:45
利申: 用LR export去pureraw再入返LR
2024-02-27 01:12:29
好奇問吓 有無人係會經淘寶買key?
2024-02-27 01:24:25
我會寧願重D買ZVE10同18-135
整個胸包其實要拎唔辛苦
2024-02-27 01:27:47
其實怕跌價買二手咪得
2024-02-27 01:30:21
2024-02-27 01:30:23
呢支新出嗰陣多人用啦
依家舊啫
但呢個價呢個重量仲係好打得
SONY幾支1.8都係同級相對輕
2024-02-27 01:31:07
2024-02-27 01:31:58
2024-02-27 01:36:53
2024-02-27 02:03:21
三羊邊緣冇咁好
2024-02-27 02:06:09
2024-02-27 02:12:49
有少少離題唔好意思 因工作上關係嚟緊要返大陸做嘢 如果帶相機上去 係咪要求畀啲海狗開機睇?無返過上面
2024-02-27 03:11:53

第一次貼圖 手下留情
a7cR + 40mm F2.5G
2024-02-27 07:33:50
我最近都轉左a7cr 有時啲相夠清放大係隻貓個瞳孔睇得到自己
2024-02-27 08:09:50
買斷個心好過啲
2024-02-27 09:18:29
光圈細少少嘅sigma 35f2呢?
2024-02-27 09:26:27
據我理解焦距數字愈細視角愈闊
Sigma支14mm照計應該闊過佢地支15mm
但係睇番數值14mm既視角係110度左右,15mm可以去到180度
係咪魚眼鏡既焦距同視角又係第二種計法
定係焦距同視角唔係咁簡單可以線性咁轉換
2024-02-27 09:31:17
睇一機二鏡未必check .多過就好大機會中,多數check 卡入面有無相
2024-02-27 09:53:02
我睇返係個 mapping唔同,所以計法唔一樣


Fisheye lenses differ from normal (rectilinear) lenses in the mapping between the object angle Θ and the radius r on the image plane.
For rectilinear lenses, r = f tan Θ.
For typical fisheye lenses, there are several mappings, but the most common is r = f Θ.

https://www.imatest.com/docs/pre-distorted-charts/#:~:text=Fisheye%20lenses%20differ%20from%20normal,common%20is%20r%20%3D%20f%20Θ.

一般鏡map flat view (所以有tangent),魚眼鏡map curved view。
2024-02-27 09:54:50
咁可以睇埋DxO Photolab,有30日全功能無水印試用。
不過其實貴過訂Lr 一年。
2024-02-27 10:20:30
用左一年有多 開始覺得28200真係唔多sharp 尤其係影夜晚
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