送交者: blackbox 于 2012-01-16, 21:29:31:

回答: 2*2.8 = f5.6 由 cornbug 于 2012-01-16, 21:10:33:

• I guess not, especially for DSLRs. - 猎人 (136 bytes) 2012-01-16, 21:35:19 (641726)
  • Some lens/camera combos need micro-adjustment - 水手 (86 bytes) 2012-01-16, 21:57:11 (641740)
    • never heard this. what is this? (无内容) - 猎人 (0 bytes) 2012-01-16, 22:17:30 (641753)
      • Some camera lens combos has back-focusing - cornbug (336 bytes) 2012-01-16, 22:38:05 (641760)
      • Some camera lens combos has back-focusing - cornbug (336 bytes) 2012-01-16, 22:29:50 (641758)
      • some cameras have this feature - 水手 (191 bytes) 2012-01-16, 22:24:46 (641757)
    • That is good. I did mine also. (无内容) - cornbug (0 bytes) 2012-01-16, 22:04:53 (641744)
      • how did you do that? - blackbox (35 bytes) 2012-01-16, 22:11:08 (641747)
        • Not every camera allows you to do it. - cornbug (92 bytes) 2012-01-16, 22:20:23 (641755)
          • OK, will double check. - blackbox (21 bytes) 2012-01-16, 22:23:45 (641756)

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