黑白练习本
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[136 楼] kicvincent
[资深泡菜]
13-5-22 02:27
没感到数码味....
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[135 楼] kicvincent
[资深泡菜]
13-5-22 02:26
可能片基导致扫描结果....
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[134 楼] kicvincent
[资深泡菜]
13-5-22 02:26
12F总有点雾的感觉....
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[133 楼] kicvincent
[资深泡菜]
13-5-22 02:25
这个灰比较通透...
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[132 楼] kicvincent
[资深泡菜]
13-5-22 02:24
原装卷价格还行...
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[131 楼] kicvincent
[资深泡菜]
13-5-22 02:24
富士卷品质一向好....
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[130 楼] kicvincent
[资深泡菜]
13-5-22 02:23
400的颗粒还是细....
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[129 楼] kicvincent
[资深泡菜]
13-5-22 02:23
富士片基0.122mm，比12F的薄0.003mm
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[128 楼] kicvincent
[资深泡菜]
13-5-22 02:22
底片有点卷曲...
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[127 楼] kicvincent
[资深泡菜]
13-5-22 02:21
D-76，7:30"
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[126 楼] kicvincent
[资深泡菜]
13-5-22 02:21
开一锅新药....
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[125 楼] kicvincent
[资深泡菜]
13-5-21 20:23
搜索到依尔福年表在1961年有记载Hyfin的发布。
在APUG一个主题High Acutance Develper里，有一篇提到药的配方。转载一下.... ========================================================================== Ian Grant 08-02-2009, 05:06 AM In his book "Photographic Processing Chemistry" (1974 Focal Press), L.F.A. Mason lists a typical High Acutance Developer. This may possibly be the formula for Hyfin, which was Ilford's High Acutance developer, available from 1961 until the early 1970's. Mason calls it a typical formula: High Acutance Developer Metol 0.5g Sodium Sulphite (anhyd) 5g Sodium Carbonate (anhyd) 5g Water to 1 litre Development times 15-25 minutes Requires a minimum of 600ml of chemistry per 35mm or 120 film. Mason notes that additions to the formula have been proposed, either 0.1g/litre Potassium Bromide or 5ml of 0.0001% Potassium Iodide solution. (He may be referring to other similar formulae like FX-1 etc) Hyfin was sold in packets containing 5 sachets of developer each one making up 600ml of solution. I have two packets of Hyfin & will weigh the contents of a scchet next time I'm in the UK. Hyfin instructions were: Pan F & FP3 - 18 minutes @ 20°C Continuous agitation for the first 10 seconds then 5 seconds every minute. Gives 1 stop more effective film speed  It's no co-incidence that Hyfin & HDD are very similar to Beutler's High Definition developer, sold as Neofin Blue, and another similar developer is Crawley's FX-1 formula. The major differences are that Beutler has 1g Metol/litre & Crawley's FX-1 only 2.5g Carbonate + 15ml 0.0001% KI, compared to the formula above. The decrease in the Metol level compared to Beutler is likely to increase the edge effects & acutance further. The addition of Potassium Iodide is likely to have little or no effect now as most modern films contain far higher levels in their emulsions, particularly Tmax & Delta films. It may have been more important with certain films Crawley speculates that it was needed in HDD for Pan-X Mason would have known Crawley and his work, Ilford began manufacturing his chemistry for Paterson around 1963. Ian ========================================================================== |
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[124 楼] kicvincent
[资深泡菜]
13-5-21 18:10
兄不客气！我还是新手。这天在看一网页有提到 高清晰度显影药如何产生边缘效应 ，不敢乱翻译英文原文曲解原意(用了网上工具翻译)，有附图大概看个明白，值得参考一下。希望有大侠解释一下。
婶婶的话要听  yuroobin 发表于 2013-5-21 17:08  |
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[123 楼] yuroobin
[陈年泡菜]
13-5-21 17:08
冲的很不错，学习了。
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[122 楼] kicvincent
[资深泡菜]
13-5-20 13:46
两位资深在有关颗粒问题中提到，颗粒粗 实际上是银粒的聚集，最根本的问题是各种原因所导致的颗粒不均匀聚集，“不均匀”才是关键，而并非每一个微粒的绝对大小。学习了！
下回冲高速卷尝试D-76(1:1)，看看对颗粒和反差有什么影响.... |
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[121 楼] kicvincent
[资深泡菜]
13-5-20 02:50
后面那卷Neopan 400拍了一半，过两天冲...
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[120 楼] kicvincent
[资深泡菜]
13-5-20 02:50
呵~ 手里有一盒EDU100...
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[119 楼] kicvincent
[资深泡菜]
13-5-20 02:49
EDU好像有页片？...
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[118 楼] kicvincent
[资深泡菜]
13-5-20 02:48
配合景物的材质，感觉有味道....
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[117 楼] kicvincent
[资深泡菜]
13-5-20 02:47
这样较容易看出各卷的分别....
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[116 楼] kicvincent
[资深泡菜]
13-5-20 02:47
用一只镜头和相同滤色镜...
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[115 楼] kicvincent
[资深泡菜]
13-5-20 02:46
按ISO400拍摄....
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[114 楼] kicvincent
[资深泡菜]
13-5-20 02:45
喔！上次用派森....
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[113 楼] kicvincent
[资深泡菜]
13-5-20 02:44
颗粒确实没有上次粗....
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[112 楼] kicvincent
[资深泡菜]
13-5-20 02:43
搅拌用阴力....
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[111 楼] kicvincent
[资深泡菜]
13-5-20 02:43
用往常搅拌的频率...
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[110 楼] kicvincent
[资深泡菜]
13-5-20 02:42
底片厚薄和反差感觉正常....
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[109 楼] kicvincent
[资深泡菜]
13-5-20 02:41
D-76，8:00"，第五次回用.....
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[108 楼] kicvincent
[资深泡菜]
13-5-20 02:40
全卷安然无恙，没有漏光，之前是卷片盒问题....
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[107 楼] kicvincent
[资深泡菜]
13-5-19 01:14
还有一卷Arista EDU400明天冲，希望没事....
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