Originally posted by tellwill I dont... and i cant find the "reasons already mentioned"...
These were the "reasons already mentioned":
Originally posted by BigMackCam have very good light to shoot in (so I can stop down a bit), and the IQ is certainly nice enough within the "superzoom" class of lenses - but not without significant limitations, IMHO... especially where the older pre-PZD version is concerned.
The Tamron 28-300 (pre-PZD and PZD) needs to be stopped down somewhat for frame-wide sharpness, especially so at the longer end.
Originally posted by tellwill the 18-270 is no full frame... not wheather resistant... and despite not a screw-drive not really the fastest focusing brat in the classroom.
The 28-300 on the other hand...
Would be full-frame, weather resistant(all thumbs up
), and if i have to take a good guess... i would say PENTAX would do good to make every upcoming lens from now on as fast and as silent focussing as possible.
Those are my reasons, I mention here, why I think, a modern 28-300 FF lens would not only "have a place" but more likely :
sell like hotcake...
(even if the price-tag would be 900 bucks, what would be 200-300 more than the actual Tammy PZD sells for)
You and I will have to agree to differ
As I mentioned, I own both the non-PZD and PZD (dust & splash resistant) versions of the
28-300 in Sony A-mount which I use on full frame. They're OK optically... quite decent, even, given the huge focal length range... but neither is "great". Demand for the APS-C Pentax 18-270 (a Tamron design) wasn't high, so I doubt that a full frame version - even with limited weather resistance and silent but not-very-fast PZD - would sell any better.
I'm surprised that you'd be unimpressed with the DFA28-105 (given its reputation optically), yet be so positive about the Tamron 28-300, which is still limited at 28mm rather than the 24mm you wish for, and is more compromised optically. Still, we're all different, and I can respect your opinions even if I disagree with them
Last edited by BigMackCam; 08-18-2018 at 03:54 AM.