tag:blogger.com,1999:blog-1709537690528523236.post656358095929225085..comments2024-03-29T02:16:33.375+10:00Comments on in my view ...: the Panasonic 20mm: do I really need one?obakesanhttp://www.blogger.com/profile/13743339737847465926noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-1709537690528523236.post-91757364457363825802010-02-18T01:53:34.075+10:002010-02-18T01:53:34.075+10:0020mm is slightly wide for 4/3. The image sensor is...20mm is slightly wide for 4/3. The image sensor is 17.3mm x 13mm, which makes the diagonal 21.6mm. If you shoot in 2:3 aspect ratio, then it's closer to 20mm (20.8, almost perfect). Still, this is much closer to perfect normal than 50mm on a 35mm camera.<br /><br />35mm film has an image size of 36mm x 24mm, which gives a diagonal of 43.2mm. So if you're accustomed to shooting with a 50mm on full frame, that's a little long. But it's what everyone considers "normal" in the vernacular, so it's what people have come to expect.juarez_jnoreply@blogger.comtag:blogger.com,1999:blog-1709537690528523236.post-33018090163767384732010-02-01T00:17:50.365+10:002010-02-01T00:17:50.365+10:00David ... real interesting though ... I knew that ...David ... real interesting though ... I knew that I liked my G1 a lot, its nice to know that others find also that it performs as well as I do. I must say that the GH1 is now quite an alluring choice ... get video too!obakesanhttps://www.blogger.com/profile/13743339737847465926noreply@blogger.comtag:blogger.com,1999:blog-1709537690528523236.post-10267267464822992102010-01-29T17:49:22.115+10:002010-01-29T17:49:22.115+10:00Not quite relevant, but this link fits about halfw...Not quite relevant, but this link fits about halfway between this post and your one about large format and m4/3. It includes a DxO comparison between a GH1 and a Canon 7D.<br /><br />http://www.dxomark.com/index.php/eng/DxOMark-Sensor/DxOMark-reviews/DxOMark-review-for-the-Panasonic-Lumix-DMC-GH1Unknownhttps://www.blogger.com/profile/13275083592389437813noreply@blogger.comtag:blogger.com,1999:blog-1709537690528523236.post-7144625061309618122010-01-29T09:50:45.808+10:002010-01-29T09:50:45.808+10:00LOL!
Mate, my high school maths teacher *WAS* an a...LOL!<br />Mate, my high school maths teacher *WAS* an alien: I think his name was Ford Prefect and he was from Beetlejuice!<br /><br />Yeah, I think I understand what you said: it's gotta be non-linear.<br /><br />And the adapter and retro-focus design throw the tan over the adjacent. <br />Or was that the sunlight over the back? <br />(reaching for the coffee cup...)<br /><br /><br />word verification: polingsh<br />How appropriate, sounds like the language I was using!Noonshttps://www.blogger.com/profile/07694829378563989648noreply@blogger.comtag:blogger.com,1999:blog-1709537690528523236.post-39094431743450922142010-01-28T17:06:16.673+10:002010-01-28T17:06:16.673+10:00I'm going to be really boring here and say tha...I'm going to be really boring here and say that its down to stuff like "tan" which is "opposite over adjacent" ... so as the adjacent shrinks (the sensor lies effectively on the line represended by the adjacent, and the focal length is essentially the opposite here) the relationship grows in a non linear way. Considering that angle of view is what we are calculating for.<br /><br />shit, isn't it time for a coffee yet?<br /><br />You know, if my high school maths teacher could read this he'd think I'd been abducted by aliens and replaced ...obakesanhttps://www.blogger.com/profile/13743339737847465926noreply@blogger.comtag:blogger.com,1999:blog-1709537690528523236.post-16730912570133179532010-01-28T11:06:25.569+10:002010-01-28T11:06:25.569+10:00I am amazed at the difference between the FD 28 an...I am amazed at the difference between the FD 28 and the Pana 20!<br /><br />The perspective difference in the detail shot 20VS28closeup.jpg is incredible! <br /><br />I'd say there is a bit more at play here than just the 8mm difference. <br /><br />Perhaps a side effect of the FD adapter or the retro design?Noonshttps://www.blogger.com/profile/07694829378563989648noreply@blogger.com