新進會員
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其實我們探討的一些問題,在日本的朝日攝影（ＡＳＡＨＩ ＣＡＭＥＲＡ）２００３年的八月份數位化的１００疑問，應都有正確的解答，其中第六問（第１０４頁）有１ＤＳ及Ｎ１（用ＰＲＯＶＩＡ １００Ｆ 的軟片）一張小幅全畫面，及高倍率(好像是全開)局部放大的比較。兩者都不能說清晰，軟片的不清晰，明顯感覺是粒子的關係，但１ＤＳ是小方格及雜訊所造成的不清晰。１ＤＳ感覺亮部很乾淨，很讓人舒服，但階調及層次感ＰＲＯＶＩＡ １００Ｆ軟片很明顯勝出。
類似的報告我看很多，但這一篇報告，我認為比較公允，也比較符合在印刷上的現況。
一年多前，跟一個初次見面的專業人士聊天。
他說，有一個客戶到他那兒看電腦色彩影像。
越看色彩越不滿意，開始挑剔起他的電腦螢幕。
你為什為要用ＢＡＲＣＯ這種電腦螢幕，不用知名品牌，如ＳＯＮＹ等。
這位專業人士很生氣，就把這位客戶趕跑了。
ＩＭＡＣＯＮ的掃描機好不好，我只能說，國內用的人不少，也看過其不少廣告，但我是喜歡不為一般人所熟知的掃描機。
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新進會員
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在補充一點,假如1DS在解析度方面會比１２０要來的好，我只能說他用的機器有問題。
同理，ＡＰＳ規格的數位機會比１３５相機要來的好，我只能說他用的機器也很有問題。
另一種說法,測試者受到廣告商的引誘,或因設備的關係,或因功力的關係,做出錯誤的結論. |
新進會員
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傳統單眼相機有未來否?
不要浪費時間了吧。 |
新進會員
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我覺得我從這討論串學到相當多的新知
你可以多些說解說和例子來支持你浪費時間的論點嗎? |
新進會員
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轉載一封相關的信：
Pop Photo magazine a blatent pusher of digital cameras has an article
in the January issue: "Film is alive".
Finaly after months of advertising the superiority of digital pictures
and publishing testimonials from digital photographers, they had to
respond to the ground-swelling backlash of pros and amateurs alike,
who still use film for it"s superior quality.
Make no mistake about that, digital is not there by far where a good
ASA 100 slide film is. Start using your digital with a fast ASA
setting like 800 or 1600 and see the noise increase. No photo shop can
fix the overexposed parts in digital where the colors have gone off so
bad that there are no colors like that in nature.
Also, try to shoot a fire engine red with digital and see that it only
can do a little better then dark orange! There is nothing like the
film"s dynamic range and color reproduction...
If you wish to take similar quality pictures with a digital camera
that your old MF Minolta MC or MD lenses with a $ 50.00 camera body
can give you, you better have big bucks ready! (Say, a few thousand!)
Digital is great for instant gratification. I guess it is like a
Bigmac for your hunger...
However, if you want to shoot for an exhibition, to be displayed in a
photo gallery, with a large print size, ...USE FILM! Better yet, use
the old fashioned medium or large format view cameras.
Do the calculations, only NASA could afford a digital camera in that
format!
My advice to anybody who will listen: If you can afford it, and want
to show just "how much you are with it", ... get a DSLR! ... Enjoy it!
(... but wait for the Minolta DSLR!) Hopefully the AF lenses will fit
the new camera.
(I wish even the great MF lenses would fit at 1:1 focal length!)
The DSLRs have a place and use for the quick results that you get with
the camera. They take quite nice pictures in small sizes, once you
learn their limitations. ... but don"t sell your film camera yet!
The present sensors have reached the size and resolution capacity. The
numbers can"t be increased without the increase of noise! The digital
cameras of today, are still only a problem ... looking for a solution.
Looking for a new digital sensor solution!
As we saw in the last 30 years, things have developed fast in the
computer business, so we know that the industry eventually will find a
solution for digital pohotography sensors. However, ...no cigars yet!
(Try to get a software or hardware or a repair for your 8086 computer!)
Think of this: My Dad"s Zeiss Icon camera from 1939 still takes
perfect pictures, but you would be hard pressed to find memory or
parts for the first digital cameras. Don"t even talk to me about the
APS digitals. ... They are clever toys at best, or landfill!
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新進會員
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The one I like the most when the "born again" wedding photographers
claim they have better color and sharper pictures since they converted
to the digital religion!
Wrong on both account! (That much even the industry admits!)
... So much for testimonials!
I guess DSLR is OK, but as a wedding photographer you must have a
medium format film camera, ... well ... maybe a digital Hussy if you
must and if you can afford it!
Lets face it, today as a pro you must have one good digital camera,
because that is what the public believes you should have if you are a
pro! It is the same story with an F5! You can"t land big pro
assignements with an old manual focus Minolta camera!
Sorry folks, but we live in the golden age of BS!
The industry is pushing digital because they want you to get rid of
your perfectly good SLRs and want to sell about 100 million new
cameras every year until something else is up and the cycle can begin
again!
... They won"t sell many in the third world where people can"t afford
computers, ... hell, ... they need jobs first and homes second, clean
water and electricity next, maybe after that...!!!!
Stephen I. Molnar
Ps: I used pixel level frame grabbers to capture digital images about
15 years ago. So what!? |
新進會員
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to Chris
目前ccd所能記錄的動態範圍是比底片大，但是如果要記錄更高的階調時就沒辨法全用，必須濾除部份的範圍，在同樣的bit數下，階調要愈好的話，取樣的範圍就必須愈，這是物理上的取捨。
另外crt顯示器能顯示的動態範圍遠超過目前ccd所記錄下來的資料，說不能顯示不知從何講起。隨便一顆crt的對比都在1000以上，也就是單色超過10bit的顯示能力，這還不是算peak white value，算下去時對比更高的嚇人。以色階來說crt是相當好的顯示平台。
to 鷹學行
那個客戶真是沒眼光，如果是我遇到說barco不好的客戶我也不接了，一樣趕走，呵呵。
imacon之前看過測試，它好像不是真的是滾筒，還是用ccd的樣子，所以我想效果應該還是沒滾筒好。之前看過一次滾筒掃的檔案，至今難以忘懷。 |
新進會員
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要方便拼數位
要品質拼中片幅
135單眼目前仍方興未艾
主要因為便宜和你我手中擁有一大堆器材 |
新進會員
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對於１３５銀鹽相機的未來，我雖不認為短期會消失，但是銷路會大減，因為有攝影基礎的，１３５的傳統相機巳不只一台，再買的機會大幅降低。而新學攝影者往用數位相機學比較快。
這種現象，就如同現在的１２０相機甚至於４Ｘ５相機。
可以想見的是１３５銀鹽相機正在步１２０相機的後塵。
而4X5的大型相機,更由於操作的不便,會用的人,找不到題材拍,不會用的人,没有人要學,也找不到地方學.
這是市場的選擇,市場的機能決定一切. |
新進會員
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新進會員
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老兵不死...
只是愈來愈貴! |
新進會員
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這種事情會由市場決定，
大家就盡情的用吧 |
網路會員
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不要想太多~
就這ㄇ傻傻拍下去,當傳統真ㄉ被市場驅逐了...
再說吧! |
網路會員
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人生無常，誰知那天何時來到....... |
網路會員
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collective_9-9兄:
我所知大砲裝上後置的原廠偏光鏡焦點會偏移的有CANON 600MM F4 （含ＩＳ及無ＩＳ）NIKON AFS 600MM F4 NIKON AIS 800MM F5.6 另外當時在我身旁另有 CANON 1200MM F5.6（該鏡也有用偏光鏡，但不知焦點是否會產生偏移情況（好像也有）因此人我跟他不熟，（應說大家跟他不熟）當我提出焦點偏移問題（因我第一次使用），在場的一些人早巳知道，而不曾用過的人，則一試就知。
Ｃ及Ｎ牌的大小砲，因鏡頭前端為橡膠圈墊，要在鏡頭前端加東西是有困難度，且原廠也在前端裝上保護鏡，像我的300MM AF F2.8 巳用十多年，前端的玻璃巳傷痕累累，是可回原廠更換，但還不嚴重，至今未換。
Ｏ牌你所提供250 350 180mm三隻鏡頭都未在前端提供保護鏡，為避免第一片鏡片刮傷，無法更換，花個萬把元買一個128MM的保護鏡是正確的（保護鏡比較好買好換）（且有原廠備料問題，我的NIKON AF 300MM F2.8曾因金屬故障，總代理推說無料件，不予修理，才停產不到五年會無庫存料件，實不可思議，只好找一般的店來修）
另外我想知道的是你的350MM F2.8當不加保護鏡，跟加上保護鏡，會不會產生稍稍出焦的情況，必須重新對焦呢？
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網路會員
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鷹學行兄,
小弟剛剛拿了350mmF2.8裝上OM-1N以裂像對焦屏再次確認的結果是裝不裝PENTAX PF 128mm都不會有影響,不需重新對焦.
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網路會員
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collective_9-9兄:
收到了,謝謝你.
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網路會員
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網路會員
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前天在台北市鴻儒堂買到Camera Annual 2004,書裏的特集1,第一篇介紹銀鹽的歷史和未來發展動向,第二篇介紹印刷原稿運用銀鹽/數位的現狀.特集2介紹銀鹽相機的歷史.
另外書裏面有一篇簡介OLYMPUS,Canon,Kyocera,KONICA MINOLTA,Nikon,PENTAX的歷史,一篇整理歷代日本國產35mmSLR用電池,很有參考價值.
目前Digital Camera Annual 仍是以Camera Annual 附錄的方式出售,但是2004年版的已經有些厚度,不再是薄薄一冊.我想兩冊之間的厚度應該會慢慢消長,不知何時會主客易位? |
網路會員
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不過是拍照嘛！
有這麼嚴重嗎？ |
