On Jun 28, 2005, at 12:52 PM, Jens Bladt wrote:
The SMC Pentax-F 4-5.6/70-210mm is very good, in fact it's excellent.... - although quite slow (4-5.6 is a consumer "speed" = affordable for most people).
f/4 is slow for a 70mm lens, but f/4-f/5.6 isn't that slow for a 200mm lens. The problem with long lenses is getting *enough* DoF, particularly when close ... Most of the time I find myself shooting at f/11-f/22 with anything longer than 135mm.
Godfrey
