Re: My own Pentax blog.
Jostein, I've used Adobe CameraRaw with de default setting and no automatic correction. Sharpning was set to 20. So this could affect testresults, althow this amount of sharping is normal in every day use. All images where judged with the same settings. I've tested the setting of sharpening before setting it to 20. And I found it te be a good point making a fair compare of the resolution. No sharpening made it a bit more difficult to make repeatable judgement of resolution. Setting it higher then 30 created artifarcts and would lead to false conculsions. I found 20 good, and also the sharping I mostly apply seem to be between 15 and 25. I know this isn't a perfect test, none is, but I already made these test for myself and want to share them with the world. The figure that I've got seems to confirm my subjective feeling about some lenses. kind regards, Pascal. Pascal, I read your blog before I asked. :-) What I would like to know is how you judge the exposures. If you apply sharpening to the exposures before counting line pairs, for example. Which raw file converter you use is also important, as they seem to vary in their ability to extract detail. And also which settings for contrast, sharpness, etc. you used in the camera. Best, Jostein 2009/9/30 Pascal De Pauw pascal.de.p...@telenet.be: Hi Jostein, Quote from my blog: Testnote: For testing I used a ISO 12233 resolution chart as testing object with the camera mounted on tripod using the self-timer and mirror-lockup. Extra info: I've printed two A3 testcharts and put them together to a A2 chart. Putting them on the wall and using a gitzo tripod to take raw pictures. I analysed it by just looking at them but did it twice and when there where big differences I checked it again. regards, Pascal. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: My own Pentax blog.
Hi Jostein, Quote from my blog: Testnote: For testing I used a ISO 12233 resolution chart as testing object with the camera mounted on tripod using the self-timer and mirror-lockup. Extra info: I've printed two A3 testcharts and put them together to a A2 chart. Putting them on the wall and using a gitzo tripod to take raw pictures. I analysed it by just looking at them but did it twice and when there where big differences I checked it again. regards, Pascal. Hi Pascal, Appreciate your effort! Both with the language and the lenses. Would you mind making a post in your blog about your methods of measurement? Best, Jostein 2009/9/27 Pascal De Pauw pascal.de.p...@telenet.be: H?, I've started my onw Pentax blog, to publish the testnote's of my own lenstest I did when I bouth the Ist-D some years ago. I'm writing it in english altough it's not my native language. All comment is welcome. http://pentaxlenstest.blogspot.com/ kind regards, Pascal. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: My own Pentax blog.
Pascal, I read your blog before I asked. :-) What I would like to know is how you judge the exposures. If you apply sharpening to the exposures before counting line pairs, for example. Which raw file converter you use is also important, as they seem to vary in their ability to extract detail. And also which settings for contrast, sharpness, etc. you used in the camera. Best, Jostein 2009/9/30 Pascal De Pauw pascal.de.p...@telenet.be: Hi Jostein, Quote from my blog: Testnote: For testing I used a ISO 12233 resolution chart as testing object with the camera mounted on tripod using the self-timer and mirror-lockup. Extra info: I've printed two A3 testcharts and put them together to a A2 chart. Putting them on the wall and using a gitzo tripod to take raw pictures. I analysed it by just looking at them but did it twice and when there where big differences I checked it again. regards, Pascal. Hi Pascal, Appreciate your effort! Both with the language and the lenses. Would you mind making a post in your blog about your methods of measurement? Best, Jostein 2009/9/27 Pascal De Pauw pascal.de.p...@telenet.be: H?, I've started my onw Pentax blog, to publish the testnote's of my own lenstest I did when I bouth the Ist-D some years ago. I'm writing it in english altough it's not my native language. All comment is welcome. http://pentaxlenstest.blogspot.com/ kind regards, Pascal. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: My own Pentax blog.
Hi Pascal, Appreciate your effort! Both with the language and the lenses. Would you mind making a post in your blog about your methods of measurement? Best, Jostein 2009/9/27 Pascal De Pauw pascal.de.p...@telenet.be: Hé, I've started my onw Pentax blog, to publish the testnote's of my own lenstest I did when I bouth the Ist-D some years ago. I'm writing it in english altough it's not my native language. All comment is welcome. http://pentaxlenstest.blogspot.com/ kind regards, Pascal. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
My own Pentax blog.
Hé, I've started my onw Pentax blog, to publish the testnote's of my own lenstest I did when I bouth the Ist-D some years ago. I'm writing it in english altough it's not my native language. All comment is welcome. http://pentaxlenstest.blogspot.com/ kind regards, Pascal. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.