The big drawback with the 28-70 is that it is prone to separation of the rear element, which is effectively unrepairable.
I wouldn't buy one myself today; it would be too much of a gamble. It may last for years, or it may fail in a couple of months. On Tue, Feb 02, 2010 at 12:22:24PM +0800, Sandy Harris wrote: > I've got a KX and so far my most used lens is an A 35-70 F4. I'm quite > happy with > that. I also have DA 16-45 and screwmount 55/1.8, but 70% or more of shots use > the 35-70. > > Looking at the reviews: > http://www.pentaxforums.com/lensreviews/SMC-Pentax-FA-28-70-F4-Zoom-Lens.html > It appears the 28-70 might be even better for me. Lighter, auto-focus, > and a wider > zoom range. What's not to like? KEH have one, ex+ for $119. > > It seems worth asking here before taking that plunge. Anyone used this lens on > digital? Can anyone compare this at 42-105 equivalent to the old 35-105 that > was many people's favorite lens on film? > > For that matter, has anyone got one to trade? The 16-45 is a fine lens, but > I'd > happily trade it for the 28-70 and something else. First choice, 100/4 or 3.5 > macro, but anything that looks useful in a lightweight kit with KX and 28-70 > might be of interest. 50/1,4, 20 or 135 mm lens, 45-125 zoom, ...? Contact > me off-list if this is of interest. > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

