Originally posted by UncleVanya In looking over the winter and spring photos on the blog you linked I noticed that the vast majority were shot at 50mm or greater, very few are wide angle shots. I just realized you indicated the kit lens is wide enough, the others are not.
Also given the focal length it appears many of these were taken with the 50-200 which is known to be a lens with lower contrast and softness. You might see better results using the kit lens more and the 50-200 less. If you want a lens in that focal length that excels a bit more the 55-300 DAL, DA, and WR versions are all optically essentially the same as each other and all have quite a bit better reputation than the DA 50-200. I own both lenses but I haven't shot them back to back since I have loaned my dad my 50-200 and only recently acquired the 55-300. I have noticed that the 55-300 does nice pseudo macro shots at 300mm minimum focus distance which might be what you are doing with the 200mm in some of the photos.
Given the lack of wide angle shots I would think the 18-135 might be the next logical step for you. It covers a lot of the range you have been using - though not quite as long - and it's a sharp contrasty lens that gives great results. It's not a premium lens and it is not fast, but it works well. If you got this lens you could try to unload the kit lens and possibly the 50-200 for a small amount of money towards the next purchase.
In the end - it's your money and your photos. Keep telling us more about what you like and dislike and post links to more specific pics.
---------- Post added 01-20-15 at 12:52 PM ----------
Those are fun but not very versatile or fast enough to work in some of the conditions he seems to enjoy - manual focus in lower light conditions can be challenging.
On a sidenote, she, not he
Thanks, a very insightful post - there have been so many replies I'm confused! Selling some of my stuff seems like a reasonable thing to do, as I never use the 40-80 (got lots of use of it with the K1000 though), and haven't touched the 35-80 for couple of years. I browsed my blog, and picked some of my favourite photos - the lens I use the most appears to be the 50mm, followed by the 50-200. The IQ of the 50-200 is not great, but it's useful for the shots I tend to want to take - pseudo macro, as you say. The 50mm seems to have a special quality about it I instantly recognise. The Oxford winter scene was taken with the 35-80, which would suggest it has more scope than I remember.
Based on all the recommendations, I think I'll save towards the Tamron 17-50 (or Pentax 17-70, if at the time I can get one second-hand) and also finally replace the 50-200 with a 55-300.
Again, sorry about the mega-size photos...