Post to WordPress Bug?
October 14, 2008
Anyone ever seen this when attempting to use the “Press This” bookmarklet with a large chunk of text selected?
Interesting to note that they’re using LiteSpeed, as well.
Magic number (programming) - Wikipedia, the free encyclopedia
October 14, 2008
Interesting list of “Magic Debug Values” from Wikipedia:
0x..FACADE: Used by a number of RTOSes0xA5A5A5A5: Used in embedded development because the alternating bit pattern (10100101) creates an easily recognized pattern on oscilloscopes and logic analyzers.0xABABABAB: Used by Microsoft’s HeapAlloc() to mark “no man’s land” guard bytes after allocated heap memory0xABADBABE: Used by Apple as the “Boot Zero Block” magic number0xABADCAFE: A startup to this value to initialize all free memory to catch errant pointers0xBAADF00D: Used by Microsoft’s LocalAlloc(LMEM_FIXED) to mark uninitialised allocated heap memory0xBADBADBADBAD: Burroughs large systems “uninitialized” memory (48-bit words)0xBADCAB1E: Error Code returned to the Microsoft eVC debugger when connection is severed to the debugger0xBADC0FFEE0DDF00D: Used on IBM RS/6000 64-bit systems to indicate uninitialized CPU registers0xBADDCAFE: On Sun Microsystems‘ Solaris, marks uninitialised kernel memory (KMEM_UNINITIALIZED_PATTERN)0xBEEFCACE: Used by Microsoft .NET as a magic number in resource files0xC0DEDBAD: A memory leak tracking tool which it will change the MMU tables so that all references to address zero0xCAFEBABE: Used by both Mach-O (”Fat binary” in both 68k and PowerPC) to identify object files and the Java programming language to identify .class files0xCAFEFEED: Used by Sun Microsystems‘ Solaris debugging kernel to mark kmemfree() memory0xCEFAEDFE: Seen in Intel Mach-O binaries on Apple Computer’s Mac OS X platform (see0xFEEDFACEbelow)0xCCCCCCCC: Used by Microsoft’s C++ debugging runtime library to mark uninitialised stack memory0xCDCDCDCD: Used by Microsoft’s C++ debugging runtime library to mark uninitialised heap memory0xDDDDDDDD: Used by MicroQuill’s SmartHeap and Microsoft’s C++ debugging heap to mark freed heap memory0xDEADBABE: Used at the start of Silicon Graphics‘ IRIX arena files0xDEADBEEF: Famously used on IBM systems such as the RS/6000, also used in the original Mac OS operating systems, OPENSTEP Enterprise, and the Commodore Amiga. On Sun Microsystems‘ Solaris, marks freed kernel memory (KMEM_FREE_PATTERN)0xDEADDEAD: A Microsoft Windows STOP Error code used when the user manually initiates the crash.0xDEADF00D: All the newly allocated memory which is not explicitly cleared when it is munged0xEBEBEBEB: From MicroQuill’s SmartHeap0xFADEDEAD: Comes at the end to identify every OSA script0xFDFDFDFD: Used by Microsoft’s C++ debugging heap to mark “no man’s land” guard bytes before and after allocated heap memory0xFEEDFACE: Seen in PowerPC Mach-O binaries on Apple Computer’s Mac OS X platform. On Sun Microsystems‘ Solaris, marks the red zone (KMEM_REDZONE_PATTERN)0xFEEEFEEE: Used by Microsoft’s HeapFree() to mark freed heap memory0xFEE1DEAD: Used by Linux reboot() syscall
via Magic number (programming) - Wikipedia, the free encyclopedia
BobAtkins.com: Manual focus lenses on Canon EOS bodies
October 14, 2008
Photojojo: Manual Focus Lens on Canon EOS DSLR
I found this excellent post below from BobAtkins.com about using manual focus lenses on Canon EOS bodies via this great article at Photojojo: Better Lenses for Less Money: How To Use Vintage Lenses with Your DSLR
Using Manual Focus Lenses on Canon EOS bodies
A common question is whether older manual focus lenses from other manufacturers can be used with a Canon EOS body. The answer is a qualified “yes” in many cases. Of course you don’t get autofocus, nor do you get any sort of focus confirmation. Also, you don’t get any sort of automatic iris operation. In most SLRs, focusing is done at full aperture, and if you stop the lens down to, say, f11, it remains fully open until just before exposure, then it stops down for the exposure and opens up again. This gives a brighter viewfinder image and makes focusing easier and more accurate. When these lenses are mounted on an EOS body, stop down metering must be used. That means that the lens is first focused at full aperture (for maximum accuracy), then manually stopped down to the shooting aperture before the shot is taken. Some people have trouble accurately focusing using the standard EOS viewfinder screen, since it has no focus aids (like a split image center). While some of the higher end models (like the EOS-1 series, the EOS 3 and the EOS A2), so have additional accessory screens with focus aids (e.g. screen Ec-B has a split image center), the consumer level cameras (Rebel, Elan, digital Rebel, 10D, 20D) do not.
Clearly using a manual focus lens is inconvenient, but sometimes it can be worth it if the equivalent EOS lens is expensive, if the manual focus lens is better than any Canon EF or EF-S series lens (rare, but it happens), if you shoot mostly static subjects or if you don’t use the lens very often.
via Canon EOS lens Adapters - Manual focus lenses on Canon EOS bodies
![pdx [portland]](http://farm2.static.flickr.com/1046/3168818707_570cff7348_t.jpg "pdx [portland]")
