Gerxin

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2004/08/28 09:27 請先登入後才可回應

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Is there any simple & fast method to correct a scan file from film with satisfy output ?
(Of course I believe that satisfy doesn"t mean perfect, what I ask for is just like the auto-focus. One click to give a 98% close focus, but not perfect)

Recently I want to buy a film scanner to change my film to digital file.
I have tried the flatbed epson 1670, colour not good and burst.
I have tried epson 4780, better colour & sharper, but expensive.
Dual IV $2200, sounds good, but not tried yet.

I understand that even using a very good scanner, the image has to be toned to give a better quaility picture. Many people say that the scanning time is not long compare to the toning and adjustment time.

So I would like to ask is there any fast method to give a near perfect/optimal result?

龍一新進會員	81) 2004/09/06 16:06 I think you are right. However, the resolution of 135 film scanned by 5000ED is 4000x6000ppi and the file is around 72MB. Do you think 4000ED is better than 5000ED? Unfortunately, 4000ED has discontinued already....
龍一新進會員	82) 2004/09/06 16:14 By the way, no matter 72MB or 133MB, it is not practical way to scan 135 film since no one in consumer market would like to handle such a large file except the professional market. But, 120 film would be the first choice for professionals... 2000x3000ppi(6 million pixels) will be the most useful file size for us.
jsklee 網路會員	83) 2004/09/06 18:20 "However, the resolution of 135 film scanned by 5000ED is 4000x6000ppi and the file is around 72MB. Do you think 4000ED is better than 5000ED?" 係就好囉!等我無藉口換5000ED.哈哈!
jsklee 網路會員	84) 2004/09/06 18:22 "2000x3000ppi(6 million pixels) will be the most useful file size for us." 老實說,我覺得幾多百萬象素不是最重要,最重要的是色域啊!
Gerxin 網路會員	85) 2004/09/06 23:41 "老實說,我覺得幾多百萬象素不是最重要,最重要的是色域啊!" Targeted what I am finding. How"s Dual 4 performance in 色域?
*香港至NET超人* 網路會員	86) 2004/09/06 23:53 >2000x3000ppi(6 million pixels) will be the most useful file size for us. 龍一, 我唔係阻你幫人, 不詔呢個結論實在強差人意! 任何人都覺得自己投資冇錯, 但O岩晒既只係自己, 你咁樣吹噓, 只有反效果! 而且你自斷米路, 呢頭講自己幾掂, 果頭謂多過6MPIX冇用, 咁咩客先O岩位來搵你?! 搵錢就係搵錢, HARD SELL話先已好Ｘ掂冇問題, 咪吹過龍人地唔好先至得O架....
龍一新進會員	87) 2004/09/07 00:02 jsklee兄: I agree with you that the most important thing of a good scanner is not how many million pixels it can produce. More attention may be paid to the color space(14bits or 16bits/color channel) as well as the following points: a)The min. & max. density(Dynamic range), b)Scanning speed(Productivity) c)How user friendly is the operating driver. I still believe that 6 million pixels is the practical range for scanning 135 films for consumer market since not much people would expect using 135 film to make very large print.
*香港至NET超人* 網路會員	88) 2004/09/07 10:25 6MPIX如以300dpi輸出, 都未夠8R..... 我相信LEICA講135菲林, 是有25MPIX等效級數. 即是比6MPIX線性放大多一倍. anyway, 你開檔我唔阻你幫人, 但如果要說6MPIX就足夠, 那些大於2700DPI的底掃(等效8MPIX), 買既咪就係傻仔?!
lawlaw 網路會員	89) 2004/09/07 11:27 多口一問，D-range中文點譯好呀？
Gerxin 網路會員	90) 2004/09/07 12:25 動態範圍 I guess I see similar range in CD player
neofung 網路會員	91) 2004/09/07 12:33 dynamic range = 寬容度 ?
lawlaw 網路會員	92) 2004/09/07 13:03 謝謝前輩回覆。
jsklee 網路會員	93) 2004/09/07 13:27 D-range = 動態範圍, 但不等於寬容度寬容度 = exposure latitude
jsklee 網路會員	94) 2004/09/07 13:43 寬容度是指菲林或感光元件對光線所能紀錄的範圍. 例如,現在把最光到最暗分成100級,0是最暗,100是最光. 有些菲林或感光元件可以紀錄到20-80,但有些可能更好,能夠紀錄到10-90. 以一般來說,負片寬容度最高,其次是正片,再其次就是一般的DC/DSLR. 而動態範圍,是指在能夠紀錄光線的範圍之內,有幾多級. 動態範圍越高,如4.8D,所表達的光暗/顏色層次則越多.感覺上張想就會越立體. 所以,一般的DC,由於寬容度小,所以光位變成死白,暗位變成死黑.同時,它的動態範圍也少,所以層次比較差,張相就比較平. 相反,負片或正片寬容度度,光位及暗位的層次依然可見,而它的動態範圍也高,層次比較好,張相就會比較立體. 不吝批評.
jsklee 網路會員	95) 2004/09/07 13:45 sorry, typing error: 相反,負片或正片寬容度高,光位及暗位的層次依然可見,而它的動態範圍也高,層次比較好,張相就會比較立體.
neofung 網路會員	96) 2004/09/07 14:52 scanner既dynamic range係指能夠分辨到最光同最暗範圍, 叫做動態範圍都得掛, 但菲林/相紙既dynamic range都好似係叫做寬容度, 咪以為又係叫寬容囉! 輸出幾多bit或AD converter, 係分辦到既範圍內, 可以分辦到幾多級. PS: 依家既DSLR, 寬容度已經好接近負片, 而Sigma SD10更加能夠好容易用盡晒成張相既光暗位, 呢方面菲林比較困難.
*香港至NET超人* 網路會員	97) 2004/09/07 15:39 d-range大未必代表精細. 而立體感主因亦不是d-range大, 景深及解像度成份更為重要. 4.8D是計算出來, 實際上所有透明片加DYE, 是不可能大於4.0D. E6菲林亦最多只有3.6D, KODACHROME及黑白菲林是最大D-RANGE. 14BIT/16BIT取樣問題, 看似遠比常用8BIT COLOR DEPTH為大, 有足夠的HEADROOM來解釋, 問題還有NOISE, 16BIT都不是全部NOISE, 它亦有一定SN問題. 另一個問題是片基顏色的影響, 就算是SLIDE, 唔同牌子片基都有唔同偏色及色調, 由於DYE是專有, 亦須要一套COLOR MATCHING才可獲得接近原色.
hytong 網路會員	98) 2004/09/07 20:44 http://www.photographical.net/scanner_profiling1_2.html