alphadog wrote:
it is NOT as sharp as a PRIME... for LANDSCAPE work, it is adequate, no problem, but IF NATURE, BIRDS, etc it will NOT be as sharp as a prime. I do know some folks have sharp images, but IF the same pic was taken with a PRIME it will not hold up IN competitive venues for contests, etc... or rarely ... it is LESS expensive than a PRIME and IF you are NOT a pro or trying to win THE BEST photo contest for a big mag, it won't matter
You should join us here in the 21st century instead of sitting back there in the dark ages. Yes historically primes have been sharper than zooms. Yes maybe the 500 PF is incrementally sharper than the 200-500, but also less flexible. The zooms of today with computer aided design can be very sharp and require extreme pixel peeping to see a difference. The fact is many pros shoot zooms and many awards have been won by photographers shooting zooms. I also don’t get your supposition that zooms are adequate for landscapes but not nature. Why would I want landscapes any less sharp and I would conjecture that primes are used more often for landscapes than nature, and if you’re looking at a 200-500 zoom I’m pretty sure not many landscapes are being shot with it.