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#41
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DSLR lenses have too small diameters
In article , TRoss says...
It is certainly less of a problem than your solution to the problem,viz. that the lens should have a diameter of 112mm. That's more than the diameter of my Meade ETX105, ffs. I can't imagine how much a beast like that would weigh. Also, your "solution" would exacerbate another problem with wide angle lenses: flare. And the damned thing would weigh a ton and cost a fortune.. You could use a camera with a smaller sensor. That would drive down the lens diameter. -- Alfred Molon ------------------------------ Olympus 50X0, 8080, E3X0, E4X0, E5X0 and E3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#42
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Drowning in photos
"Alfred Molon" wrote in message ... By the way Hans, this image http://www.pbase.com/hkruse/image/66422763 Very nice, but why did you go up to ISO1600, with F2.8 and 1/15s? If me, I would have shot this with a tripod at ISO 100 and F8. -- After this long discussion, I now see that the only reason you went though my photos was to find one that had vignetting so that you could have your discussion about vingetting and small sensors. What a waste of time..... -- Med venlig hilsen/Kind regards, Hans Kruse www.hanskruse.com, http://hans-kruse.blogspot.com/ |
#43
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Drowning in photos
In article , Hans Kruse
says... After this long discussion, I now see that the only reason you went though my photos was to find one that had vignetting so that you could have your discussion about vingetting and small sensors. What a waste of time..... No that wasn't the reason. Please don't making false accusations - it gives a bad impression of yourself. -- Alfred Molon ------------------------------ Olympus 50X0, 8080, E3X0, E4X0, E5X0 and E3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#44
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Drowning in photos
"Alfred Molon" wrote in message ... No that wasn't the reason. Please don't making false accusations - it gives a bad impression of yourself. So what was the reason? -- Med venlig hilsen/Kind regards, Hans Kruse www.hanskruse.com, http://hans-kruse.blogspot.com/ |
#46
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DSLR lenses have too small diameters
On Fri, 18 Jul 2008 07:57:19 +0200, Alfred Molon
wrote: In article , TRoss says... It is certainly less of a problem than your solution to the problem,viz. that the lens should have a diameter of 112mm. That's more than the diameter of my Meade ETX105, ffs. I can't imagine how much a beast like that would weigh. Also, your "solution" would exacerbate another problem with wide angle lenses: flare. And the damned thing would weigh a ton and cost a fortune.. You could use a camera with a smaller sensor. That would drive down the lens diameter. Smaller than what? Smaller than the sensor used in "full-frame" DSLRs like the Canon 1DS and 5D, the Nikon D3 and D700? Or smaller than the "APS-C" sensor used in DSLRs like everything else from Canon or Nikon? Or smaller than the 4:3 sensor in the DSLRs from Olympus? It wasn't that long ago when you suggested the only way to get an accurate preview of DOF in a DSLR would be to replace the optical viewfinder with an electronic viewfinder. Now you're suggesting using a smaller sensor to cure vignetting in wide angle and ultra-fast lenses. You have a knack for finding "solutions" that create bigger problems than the one you're trying to address. I can't decide whether you suffer from cluelessness or trollishness. If you're the Alex Molon whose pictures are at http://www.molon.de, I'm leaning towards trollishness. TR |
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