Originally posted by lazarustx You’re correct, it isn’t full frame..but on the rare occasion i might need the reach it would give it to me....
Over all I hear it’s a decent lens which I can use on the k70...
for use on an ASP-C sensor body, it is a good lens, but not a great lens
to get a better lens, you probably need to accept the size, weight and price of the D FA 150-450mm which is designed for both ASP-C and full frame sensors
Quote: Conclusion
. . . There simply isn't a better non-pro telephoto zoom option in the Pentax lineup, and no third-party lens rivals its abilities or price.. . . Who is it For
The HD DA 55-300mm ED PLM WR RE is an attractive lens for a wide swath of Pentax shooters, from beginners who want a high-quality telephoto zoom to pair with their 18-55mm or 18-50mm kit lens, to advanced users who want a durable, relatively low-cost, low-weight lens for longer outings in the field. We could see this lens being part of a great two-lens kit on a backpacking trip, for instance, paired with the DA* 16-50mm f/2.8 or a Tamron 17-50mm f/2.8.
The Bottom Line
The redesigned HD Pentax DA 55-300mm F4.5–6.3 ED PLM WR RE is a home run of a lens. Its upgraded build and autofocus system, reduced size and weight, excellent all-around image quality, and affordable price should make it a no-brainer for many Pentax users. Yes, it's better than the old 55-300mm F4-5.8, and we recommend it for any prospective user who owns a recent Pentax bodies.. . .
Read more at:
HD Pentax-DA 55-300mm F4.5-6.3 PLM WR RE Review - Conclusion | PentaxForums.com Reviews
I used it as a backup/lightweight option on my second trip to Tanzania ( and was very glad I had brought it when my DFA 150-450mm separated into two pieces while on the trip )
but it is definitely my backup lens, not my primary one
YMMV - different strokes for different folks