Thank you for the information regarding the 180 mm and 200 mm macro lens and their alternatives. Some of the ideas are certainly worth considering. Enjoyed looking at excellent nature pictures. Thank you

I've been a Pentax user for more years than I care to remember, but I'm really disappointed that there is no replacement for the manual focus 200 mm macro lens, either from Pentax or Sigma. The longer focal length lens offers the photographer so much with regards to wildlife photography. Not only are you able to work further away from your subject, which is essential when photographing insects, but it also gives you a narrower field of acceptance which allows for more diffuse backgrounds and is ideal of flower portraits etc. What is particularly disappointing is that all the other main camera manufacturers offer a macro lens within this range. I certainly do not wish to change my system, but I'm seriously considering that it may become necessary if Pentax or Sigma aren't able to come up with the goods.