[manho001]

單反唔裝鏡影唔影到野嫁?

[manho001]

會唔會壞ccd嫁?

[kota903]

唔驚有塵既話... 試吓咪知囉!~

[tploh]

影唔到

[perrykit]

影到...因為有人的確係用針孔方法影相~

[netgamer]

單反冇鏡，只是光線沒有被反射到五棱鏡和觀器窗，推算還是可以影相的。

[kingkonghk]

影到

[平凡的地夫]

我答你, 影到, 但係無任何影像
樓主唔係好恨玩單反但係又未儲夠錢買鏡下話?

D2C, 你講O個個方法我都試喎,一樣唔得

[Obi-Wan]

平凡的地夫:

u wrong!

http://www.dennisonbertram.com/hackmaster/2005/02/digital-pinhole-lens.htm

[老叟]

there is nothing absolute wrong or right!!!!!!

[怪俠]

嘩！玩針孔？
拮個窿就有得玩，如果部DC仔個鏡頭壞左，
可唔可以拆左個鏡頭用塊CCD玩針孔呢？

[平凡的地夫]

怪俠, 可以~我成6百幾度近視,
細個o個陣個視光師都同我講過,
如果你副眼鏡壞左, 可以張隻手捲埋一舊放o係眼前,
手中心只係突開少少窿,咁都可以睇得清o架~~

Obi-Wan: 不如你將呢個原理發揚光大,
整多幾枝無鏡片廣角鏡, 無鏡片長焦鏡,
成本又低, 價錢又平, 一片大把人買~
再唔係, 可以開班授徒教人用手放o係部機前面縮細手心黎對焦,
真正做到手動對焦呢~哈哈哈哈

[平凡的地夫]

d2c : 完全正確!! 如果將放大鏡o既距離同ccd 之間拉遠(大約20-30CM),
真係可以對到無限遠o架, 我o岩o岩又試過,
真係影到野, 不過因為塊放大鏡片係幾蚊一塊O既貨仔
所以順理成章就係一塊超高色散鏡片啦~~~XDDD

[Obi-Wan]

平凡的地夫





pinhole camera, F3 physics, u go check yourself

[Obi-Wan]

怪俠

"拮個窿就有得玩，" YES, as long as the hote is not large in order to provide a sharp image on common size CCD, e.g. 1 to 2 mm hole of 1/1.8" CCD

"如果部DC仔個鏡頭壞左，
可唔可以拆左個鏡頭用塊CCD玩針孔呢？"

NO, because most DC has shutter inside the lens (or more correctly, the shutter is associated with the aperature, if no shutter signal to the DC, the DC software will assumed it is an error & no current will flow on CCD to protect the CCD)