近日收到不少網友意見，指 DCFever.com「吹水閒聊」充斥愈來愈多粗言穢語、人身攻擊、誹謗等不理性討論。作為 一個以攝影興趣為主題的網站，此等漫罵式討論已超出 DCFever.com 設立討論區之原意。DCFever.com 呼籲大家以 攝影交流為目的作理性討論，並正密切留意事態的發展。
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taolala
註冊: 2002-12-03
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 G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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我想問係咪真架....即係係光圈先決時映野最細係 F8.0?
因為有時映夜景用細光圈效果唔錯.
但係我部 PANASONIC F 1 可以映到 F 14.0.....咁係咪好勁? 我唔知勁唔勁, 只係奇D FULL AUTO 機會有 F14.0...而正機無.
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tam_dominic
註冊: 2002-10-12
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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In Digital Camera (not DSLR) F8 equal about F32 in 35mm film camera.
Therefore F8 already has enough depth of field all types of shots that I can think of.
Happy shooting !
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kkfok
註冊: 2002-09-28
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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But sometimes we need even smaller aperture to take some photos like if we want to take pics of lakes and waterfalls with exposure of 2-3s, to make water looks like "marshmallow". I can't take that with my DC even with ND filter on.
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ousi
註冊: 2003-03-27
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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S602 Got the smallest aperture up to F11.0
I doesn't really know how small is enough
but my father said the lens used in SLR got even smaller, F22.0
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taolala
註冊: 2002-12-03
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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係呀,我部lomo 機係可以做到 f.16...唔錯架
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Velsper
註冊: 2002-04-03
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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dc 因ccd細, 景深夠深
135機上的f22光圈對其來說作用不大
(另聽過別人說, dc 想做到f22也是"不大可能"的)
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jackngai
註冊: 2002-08-04
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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單鏡機可以好細, 我支Sigma 17-35mm, 最細可以去到 F45
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Velsper
註冊: 2002-04-03
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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中片幅機就更細~
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tam_dominic
註冊: 2002-10-12
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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kkfok
Set smaller aperture is one way to prevent light getting into the sensor while adding ND is another way.
When you use ND you can select lighter or darker Density.
If 1 ND is not enough, add one more , two more, three more ........
Happy shooting !
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kkfok
註冊: 2002-09-28
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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Yes, that's true. But I was using the built-in ND filter of G3 and there is only "ON/OFF".
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tam_dominic
註冊: 2002-10-12
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| Re: G 3, S602 , 5700 同 717 最細光圈係 F8.0 Post time: 5 月 23 日 |
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G3 accept external filter thru adaptor.
Now you have desire to spend some more money and support HK economy. Thank you.
Happy shooting !
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