Foreign Comparative evaluation point A700/D300/40D three machines.

Equipment Forum emergent <P> amazing famous speech </ P> <P> a well-known photographic equipment from China a message forum, in just the past weekend caused a circle of friends talking about. .I also continued to receive some of the impact of familiar friends sent through a variety of links to news sources: The focus of the controversy, the article pointed out that the A700's resolution test results, not only far beyond the EOS 40D, the sensor is also more than the same .prices are higher than 1 / 3 of the D300. .</ P> <P align=center> <center> </ center> </ P> <P align=center> </ P> <P align=center> </ P> <P align=center> </ P .> <P>, of course, and soon it was noted that the platform take the test problems, the brand is not the same between the lens quality, but it is this issue so that the result looks even more unacceptable, the test form D300 equipped with powerful, .expensive and quite good reputation DX17-55/2.8 lens, the A700 is to win the test using a domestic video has been conservative friends think that Zeiss impure blood, cost is also low DT16-80/3.5-4.5ZA lens .(due to camera positioning for tourism, the current price Nikon DX17-55 is only slightly more than half.) .</ P> <P align=center> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> SLR .Model + lens <? xml: namespace prefix = o ns = "urn: schemas-microsoft-com: office: office" /> <o:p> </ o: p> </ P> <P class = MsoNormal style .= "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align = center> horizontal resolution <o:p> </ o: p> </ P .> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> vertical resolution <o:p> </ .o: p> </ P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> D300 + DX17 .-55 at <? xml: namespace prefix = st1 ns = "urn: schemas-microsoft-com: office: smarttags" /> <st1: chmetcnv TCSC = "0" NumberType = "1" Negative = "False" HasSpace = " .False "SourceValue =" 35 "UnitName =" mm "w: st =" on "> 35mm </ st1: chmetcnv> / f8 <o:p> </ o: p> </ P> <P class = MsoNormal style .= "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align = center> 2250lpph <o:p> </ o: p> </ P> < .P class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align = center> 2300lpph <o:p> </ o: p> .</ P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> A700 + DT16-80 at < .st1: chmetcnv TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "35" UnitName = "mm" w: st = "on"> 35mm </ st1: chmetcnv> / f8 .<o:p> </ o: p> </ P> <P class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" .align = center> 2350lpph <o:p> </ o: p> </ P> <P class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination .: widow-orphan "align = center> 2400lpph <o:p> </ o: p> </ P> <P class = MsoNormal style =" MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: .center; mso-pagination: widow-orphan "align = center> EOS5D + EF <st1: chmetcnv TCSC =" 0 "NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" 85 "UnitName =" mm ."w: st =" on "> 85mm </ st1: chmetcnv> / 1.8 at <st1: chmetcnv TCSC =" 0 "NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" 85 "UnitName = ."mm" w: st = "on"> 85mm </ st1: chmetcnv> / f8 <o:p> </ o: p> </ P> <P class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE .-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan "align = center> 2400lpph <o:p> </ o: p> </ P> <P class = MsoNormal style =" MARGIN: .0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan "align = center> 2300lpph <o:p> </ o: p> </ P> <P class = MsoNormal .style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align = center> EOS40D + EF <st1: chmetcnv TCSC = "0" NumberType = "1" .Negative = "False" HasSpace = "False" SourceValue = "85" UnitName = "mm" w: st = "on"> 85mm </ st1: chmetcnv> / 1.8 at <st1: chmetcnv TCSC = "0" NumberType = " .1 "Negative =" False "HasSpace =" False "SourceValue =" 85 "UnitName =" mm "w: st =" on "> 85mm </ st1: chmetcnv> / f8 <o:p> </ o: p> .</ P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> 1950lpph <o:p> < ./ o: p> </ P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> 2100lpph < .o: p> </ o: p> </ P> <P class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align .= center> D300 + DX17-55 at <st1: chmetcnv TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "35" UnitName = "mm" w: st = "on" .> 35mm </ st1: chmetcnv> / f8 RAW <o:p> </ o: p> </ P> <P class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN .: center; mso-pagination: widow-orphan "align = center> 2300lpph <o:p> </ o: p> </ P> <P class = MsoNormal style =" MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5 .pt; TEXT-ALIGN: center; mso-pagination: widow-orphan "align = center> 2400lpph <o:p> </ o: p> </ P> <P class = MsoNormal style =" MARGIN: 0cm 0cm 0pt; .LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan "align = center> A700 + DT16-80 at <st1: chmetcnv TCSC =" 0 "NumberType =" 1 "Negative =" False " .HasSpace = "False" SourceValue = "35" UnitName = "mm" w: st = "on"> 35mm </ st1: chmetcnv> / f8 RAW <o:p> </ o: p> </ P> <P .class = MsoNormal style = "MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align = center> 2550lpph <o:p> </ o: p> < ./ P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center> 2500lpph <o:p> </ .o: p> </ P> </ P> <P align=left> author's Studio result according to the text produced form part of the test, we facilitate comparison, the domestic some friends that because DX17-55 is not the optimal aperture F8 .D300 suffer so large </ P> <P align=center> </ P> <P align=center> paper as the base platform to 5D, the figure is a screenshot of the resolution target for testing. .But the original artwork does not provide on-site shooting, and no EXIF information is retained, which left more doubts </ P> <P align=center> A700 and 5D comparison shots of vertical resolution, the next graph is .D300 and 40D comparison of the same project </ P> <P align=center> these partial shots are considered signs of a deal, but the station has also been evaluating the past, some industry insiders believe a more objective and scientific evaluation of domestic, so supporters .Similarly a few </ P> <P align=left> Although the foreign media in the evaluation of information presented below normal (using the resolution is the application of analysis software is not more Imatest), led to many controversial points. .However, there are still many users believe that their test results have some practical significance. .In particular, the Studio (Evaluation Office concluded) and Out door (real shot outdoors), and Low Light (low-care real shot) the results of three separate discussions under way is considered more objective assessment of SLR cameras in the actual use of the .performance of the test article, the author for more information on this translation of order, for the majority of domestic Photographic reference. .</ P> <P align=left>.