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[討論]這顆俄羅斯鏡頭....MIR-47K 20/F2.5 [複製連結]

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發表於 2006-6-21 15:44:47 |顯示全部樓層 | 字體大小
今天逛逛的時候

發現這顆俄羅斯鏡頭,感覺規格還不錯,編號如下

MIR-47K 20/F2.5,(是的你沒有看過,光圈是2.5,而且是PK接環)

上網找了找資料,真是少之又少

最後在一個日本人的Blog裡面找到他拍貓的照片

小弟我是不太會看散景或是其他鏡頭好壞

請各位前輩來討論看看吧

或是誰有的.....(該不會是十三爺吧).....哈哈[討論]這顆俄羅斯鏡頭....MIR-47K 20/F2.5

請多發表意見喔^^

在此貼上鏡頭照片一張,及作例一張

[討論]這顆俄羅斯鏡頭....MIR-47K 20/F2.5

[討論]這顆俄羅斯鏡頭....MIR-47K 20/F2.5

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發表於 2006-6-21 17:27:48 |顯示全部樓層 | 字體大小
y拍上那支嗎????
賣超久的....em24em24

原本曾有些心動下標...如今看到貓圖...應該沒值那個起價吧
..orzorzorzorzorz

好險em13em13

錢還是花在刀口上...不用這麼浪費...em23em23em23

[ Last edited by seven on 2006-6-21 at 17:29 ]
要低調些....哈哈哈 http://bbs.nikonclub.cc/?fromuser=seven

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發表於 2006-6-21 17:54:53 |顯示全部樓層 | 字體大小
是喔,為什麼不值啊
我看不出來鏡頭的好壞 em10

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發表於 2006-6-21 18:05:05 |顯示全部樓層 | 字體大小
在對岸友站(攝影無忌)找到一些資料,似乎評價不算太好,節錄如下:

1.最佳工作光圈F11,浪費了F2.5大光圈
2.抗逆光性差(鍍膜的關係)
3.PK接口版,會有暗角(應該是指數位版機身)
4.附濾鏡,但須接在鏡頭尾端,可能對應部份機身時無法裝上(EX.用在PENTAX的Z-1P上,後置濾鏡會卡住反光鏡)
5.色彩還原度尚可但飽和度低,略偏暖,成像不夠通透鮮麗(霧霧的,應該跟抗耀光差有關)
6.做工一般,造型也不好看

規格僅供參考
MC Mir-47 Pentax K 2.5/20 Lens Specifications:
Focal length, mm: 20
Angular field of view: 94°
Maximum aperture: 1:2.5
Lens mount:  bayonet K
Mount thread for Attachments: M30.5x0.5
Dimensions, (Diameter x Length): 85x65
Weight, kg: 0.42

內心話:再爛的狗鏡,只要有心,還是可以發揮出一片天的!!good:)

PS.貓咪這張小弟就覺得很棒!!em18
匿名  發表於 2006-6-22 19:31:50 | 字體大小
okokok This is sample of a Mir-47K on ISO 200 Neg film scanned via Fuji FDI unsharpened ( also not color correted yet ) This is taken at 4.0 ( I think its 4.0, thats an old photo )



pursure  pursure  pursure  pursure

okokok

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發表於 2006-6-22 20:12:29 |顯示全部樓層 | 字體大小
Originally posted by FTL at 2006-6-22 19:31:
okokok This is sample of a Mir-47K on ISO 200 Neg film scanned via Fuji FDI unsharpened ( also not color correted yet ) This is taken at 4.0 ( I think its 4.0, thats an old photo )

[url=http://w ...

Ooops...
This is not good.... my finger is itching now......

no no no no no no

no more paypal out  @@
匿名  發表於 2006-6-23 16:45:11 | 字體大小
To answer some , my experience regarding this lens ..

1.最佳工作光圈F11,浪費了F2.5大光圈
2.抗逆光性差(鍍膜的關係)
3.PK接口版,會有暗角(應該是指數位版機身)
4.附濾鏡,但須接在鏡頭尾端,可能對應部份機身時無法裝上(EX.用在PENTAX的Z-1P上,後置濾鏡會卡住反光鏡)
5.色彩還原度尚可但飽和度低,略偏暖,成像不夠通透鮮麗(霧霧的,應該跟抗耀光差有關)
6.做工一般,造型也不好看


1. FOA, I think too many of todays photographer misunderstand real world lens and optics issue. Almost no lens of consumer photographic segment can do their best at wide open, the Mir-47K not an exception, so I have to say the point #.1 is very much a misunderstanding of lens application. 20mm lens is best utilized in film ( which is what the lens designed for ) for ultra wide angle, and landscape. Having best performance in the smaller aperture is simply design goal and I think its nothing to do with its speed.

2. I have 2 Mir-47K, and both exhibit less than optimal flar control when pointing stright into light, but if one used within context. Its OK. I do not think it had anything to do witht he coating, more like the complex optical design adn that hugh front elements. Oevrall, I say this lens is average in this regard ( compared to similar priced and similar vintage lens )

3. I do not see vignetter even on my slide, so I cannot understand this observation. Admittingly if one measure with critics. The perimeter look like having roughly 1/4 to 1/2 stop less exposure in some case ( but not all ) and this stop being a problem after 4.0

4. Exactly right, not a problem though if no filter uis attached

5. One of my Mir-47 exhibit warm biased, but one exhibit neutral, so I suppose this is variation in vintage and production ( also coating difference )

6. At this price, one can hardly fault its construction. Its metal, and solid alright while not exactly tactilly great.

Extra to the above. My observation with this lens is it exhibit higher than average resolution at mid aperture, but average contrast. Its color rendering is biased mainly towards neutral most of the time. Its saturation on the green seems to be less so than the blue and red.

But overall, I rate this lens better than avergae for tis price. It certainly beat all the Zoom that cover this focal length, and the 2.5 can be used in low light situation at time of need ( in fatc my measurment is this lens is not 2.5 but faster ).

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