noone Posted June 4, 2020 Share Posted June 4, 2020 First article is on cine cameras/lenses. https://www.lensrentals.com/blog/2020/06/the-great-flange-to-sensor-distance-article-part-1-cine-cameras/ Kisaha, heart0less, Andrew Reid and 2 others 5 Quote Link to comment Share on other sites More sharing options...
Administrators Andrew Reid Posted June 6, 2020 Administrators Share Posted June 6, 2020 Interesting the spread in the Blackmagic Pocket cameras. Roger is doing great stuff at Lens Rentals. Really admirable. noone, maxmizer and kye 3 Quote Link to comment Share on other sites More sharing options...
zerocool22 Posted June 6, 2020 Share Posted June 6, 2020 I wonder how al these adapters affect the flange distance, as I see some brand adapters are thicker then others for the same mount. Leica-r to EF, contax zeiss to EF. And how to test and change this on slr camera's? Quote Link to comment Share on other sites More sharing options...
JordanWright Posted June 6, 2020 Share Posted June 6, 2020 14 hours ago, Andrew Reid said: Interesting the spread in the Blackmagic Pocket cameras. Roger is doing great stuff at Lens Rentals. Really admirable. Not sure if it affects the tightness on the mount, but my first P4K had a slightly looser fit to the lens than the one I have now. Quote Link to comment Share on other sites More sharing options...
kye Posted June 7, 2020 Share Posted June 7, 2020 23 hours ago, Andrew Reid said: Roger is doing great stuff at Lens Rentals. Really admirable. Absolutely. In all my research on lenses the Lensrentals blog was by far the best resource I found. What I found most interesting is how the data they have publisher on lenses is so often counter to the common-knowledge out there, so in that sense it is even more valuable because it is adding to our understanding and dispelling myths. I'm really looking forward to part 2. noone 1 Quote Link to comment Share on other sites More sharing options...
Neufeldt Posted June 13, 2020 Share Posted June 13, 2020 Interesting article, thanks! I can definitely say that I've had to manually shim, rebuild, or otherwise adjust a number of vintage lenses. This becomes problematic depending how many different bodies and adapters you want to use the lens on, though. If the adapter has optics (speedboosters), they often can be adjusted. Since I'm dealing with dramatically smaller volumes of gear than Lens Rentals, I'm doing all of this purely by hand and by eye, so I really don't know any of the measurements or which piece of gear is out of spec - I'm just making it all focus correctly (hard-stop manual focus lenses stop at infinity), starting with one setup that works as a reference and just matching everything to it. heart0less and kye 1 1 Quote Link to comment Share on other sites More sharing options...
kye Posted June 14, 2020 Share Posted June 14, 2020 Part 2 is up. https://www.lensrentals.com/blog/2020/06/the-great-flange-to-sensor-distance-article-part-ii-photo-cameras/ noone and heart0less 2 Quote Link to comment Share on other sites More sharing options...
Administrators Andrew Reid Posted June 16, 2020 Administrators Share Posted June 16, 2020 I am wondering how serious the A7 series IBIS fractures are. Whether these are a result of extreme mishandling and falls or just general wear and tear? zerocool22 1 Quote Link to comment Share on other sites More sharing options...
zerocool22 Posted June 16, 2020 Share Posted June 16, 2020 1 hour ago, Andrew Reid said: I am wondering how serious the A7 series IBIS fractures are. Whether these are a result of extreme mishandling and falls or just general wear and tear? Yeah on all camera's actually, not something you can test while you are buying used camera's. Quote Link to comment Share on other sites More sharing options...
Marcio Kabke Pinheiro Posted June 16, 2020 Share Posted June 16, 2020 1 hour ago, Andrew Reid said: I am wondering how serious the A7 series IBIS fractures are. Whether these are a result of extreme mishandling and falls or just general wear and tear? Suggested to Roger that, since Sony cameras are not great in heat management, the plastic holding part could fracture by expansion / contraction because of the heat. He said that it is a good point. The plastic part looks very well surrounded by metal, very unlikely that the fracture would occur by mechanical impact or stress. Quote Link to comment Share on other sites More sharing options...
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