Originally posted by lextextrapper Size and weight are not factors for me. I want to be able to get that wide angle view, but I also want to be able to reach out and capture wildlife that might be out of range for the 55-200mm. I would also like to able to use them in low light situations.
Well... if that's the case, I'd have the following (might need to see about rental or used):
Option A
1. Wide angle on the camera - probably get a used/KEH 28mm f/2.8 lens
2. Rent a Pentax 60-250mm or Sigma 50-500mm
Option B
1. 18-135 mm WR (this is an area where WR may be important)
2. $100 Rokinon/Samyang refractor or tele 500mm - yeah - I have one, and its 'ok'. You can get a 2x tube for it if needed.
I suspect you'll probably have the 18-135mm on most of the time.