<p>Thanks to all that have responded. This is very helpful.<br>
I do have these lenses:</p>
Pentax 18 - 55 mm lens f4.5 - 32
Tamaron 80 - 210 mm lens f4.5 - 32
SMC Pentax-M macro 1:4 100mm f4 - 32
smc DA 50mm f/1.8 Lens
I am really enjoying black and white photography right now and you can see my recent images on photo.net at <a href="/photodb/user?user_id=1002445">Thomas Marino</a>