frog scared me.
I don't think those fountains are anywhere here in the midwest Don, but I will keep looking also. Man do people get upset when you TAKE money out of those things:D Hmmnn extra change ideas, lets see Frank your close to the beach right? so camera in one hand metal detector in the other let us know what you find! I hear you can sell your blood plazma like once every couple of weeks, maybe look into recycled metals, so drink more beer in cans! It seems that B+H has a pretty good payment plan, anyone use it? the only draw back is they do expect to be paid. anyone else have ideas?
Also Don or anyone else have ideas for old Minolta or current Tamron lenses that are going to be overlooked, and therefore maybe drop down in price as people "focus" on the full frame? seems you can't go wrong with that 6 yr. warranty on new Tamrons though. What about any Tokina's
Tokina is currently not licensed to make a SONY-mount lens. You might say, they are out of the picture. Then again, you might not. :o
Old Minolta lenses will work just fine on the new A900. In fact, much like they did on the Minolta 35mm-film cameras (AF-mount, of course, not the MD-mount). I fully plan on using my Minolta 50mm f/1.4 and Minolta 28mm f/2.8 regularly. Overlooked? I really don't think so. Unused, perhaps.
Remember, the way to tell the difference between a standard Minolta AF-mount/Older TAMRON lenses w/ Minolta-mount and a SONY mount/Konica-Minolta "D" mount/TAMRON Di & Di-II is the number of electrical contacts on the back of the lens.
The newer lenses have eight,
whereas the older ones only five.
Hey, how about that DOF?
What functionality is lost from those 3 missing contacts, and what is not? I've yet to "invest" in one of the older Minolta lenses, and have never had a straight answer on this issue. (But I'm sure Don can explain in detail.)
Very nice Don, so tell us what lens your new CZ I bet.
Also when you look at the base of the lens the second point of contact will be a larger square one. My understanding based on my very limited knowledge base is that the 5 contact points don't allow the through the lens metering for distance etc. for the flash unit? not sure about anything else, Please let me know if that is incorrect, so I know also.
Okay, here we go (history from Minolta) ...
In Japan, lenses and cameras are a little more "nuts", as it were, and the ideas were jumping off the drawing board at Minolta. They came up with a series of cameras with "multi-predictive focus" control ("si"-series) and the discontinuance of the Creative Expansion Card of the "xi"-series of Maxxum 35mm film cameras. This involved auto-zooming (no kidding) of the Power-Zooms ('xi'-lenses). They were discontinued with these 'xi'-series cameras, but their compatibility was maintained with all later Maxxum-series cameras (hence the beginning of the "standardized" eight-contact lenses form). Therefore, the Power Zooms remained compatible with all later AF system bodies, as the extra lens mount contacts to provide the power and zoom control were left in place. Eventually, these extra contacts would be developed into the ‘D’ specification. Powered zoom ‘xi’ lenses can be used with the Sony Alpha range of DSLR cameras.
Stick that in your pipe and smoke it, Panda! Hah!
I hope that clears up any confusion and fills in this rather bizarre and semmingly unexplained chapter in lens development history. No operational loss is experienced with the lack of those additional three contacts, but just you try and find an "xi"-lens to slap on your SONY. ;)
So, if you were to see some degradation of performance, using the older 5-contact lenses ... it would only be with using the external flash units (currently the HVL-F36AM, HVL-F56AM and probably the upcoming HVL-F42AM and HVL-58AM, also). Anyone who has experienced the DT 18-70mm f/3.5-5.6 (eight-contacts) with using the pop-up flash, already knows it makes no difference at all.
One thing I can assure you ... using TTL flash, in any form, can be a tricky proposition. Personally, I am much more at home using manually-adjusted flash and just "scoping it in" from that and a good ol' light meter.
It is what I call: "Staying out of TTL-Hell!" :eek:
Man, it never fails that you drag me right into the most controversial aspects of Photography! -LOL- Life is good, eh?
Don If you go with this lens SP AF 28-75mm f/2.8 XR Di LD Aspherical (IF) MACRO then you still need a wide angle lens. What would you get for for the true wide angle? Is the 28-75 a true 1:1 macro? Will it replace the Tamron 90 mm.?