My comment was not directed at this particular green button vs true AE and open aperture situation because they DIDN'T come up with a software/firmware solution because without the proper hardware to read the lens cam it was and still is IMPOSSIBLE. They need the $5 HARDWARE part.
My comment was directed at your general comment that software solutions are always easier than hardware solutions. there are TONS AND TONS of things still done with hardware because it's the easiest and most cost effective way for some things. It all depends specifically on the task (whats needed).. That's all I was trying to communicate but didn't apparently... JCO -----Original Message----- From: Adam Maas [mailto:[EMAIL PROTECTED] Sent: Monday, September 19, 2005 10:21 PM To: [email protected] Subject: Re: more green button wars Hardware is certainly harder to integrate. With hardware you have the software integration issues still (Since you've got to add support to the firmware for the hardware you've added) plus you need to find space for the hardware, ensure it doesn't interfere with any other hardware and ensure it is electrically compatible with the hardware, and this is something that essentially needs to be done with any fresh design (Even if the interface specs are identical, like the K mount). I'll pretty much guarantee that the implementation of the aperture coupling is different(Although similar) from model-line to model-line. You can't just drop the hardware from a MZ-6 into an *ist D and call it a day. Software, especially when it's simply piggybacking on already existent functionality like the Green-Button solution, is much easier to add as long as you have sufficient storage and CPU power. The green-button fix is likely a module or two drawing functions from the DoF code and the pre-existing Green-button code to make it stop-down meter then set Tv (the latter portion of the code already existed as part of the Green Button functionality in M mode with fully-supported lenses) And testing is a whole othe rball of wax. Adding this capability to a design that lacks it is not nearly as simple as you seem to think. And the DSLR's are built off a platform that lacked this capability to begin with (The *ist, which shares most of its mechanicsw ith teh DSLR's, although the frames are substantially different). -Adam J. C. O'Connell wrote: >Hardware is harder to integrate? Where do you >come with this crap? Hardware or software >difficulty depends on the task, sometimes >hardware is much easier solution. The firmware >"patch" is a bandaid not a fix. >jco > >-----Original Message----- >From: Adam Maas [mailto:[EMAIL PROTECTED] >Sent: Monday, September 19, 2005 9:03 PM >To: [email protected] >Subject: Re: more green button wars > > >While the lenses do exist, the number of owners looking to buy into >Digital or modern film are a fairly small fraction of the current >market. Barely worth supporting, and not worth the extra engineering >required to integrate the extra functionality into the design (Hardware >is always harder to integrate than firmware, hence the firmware fix). > >-Adam > > > >
