Two of these are with the 50mm on my K20D the rest with the Sigma 35-135 3.4-4.5 Macro MF lens. Fun one too! This one is a K mount and so the aperture ring works... It was on my K100DS
1) A fella asked about metering and I was goofing with this one. Into the sun... The 50mm
2) In between sets he walked up to me and told me he was glad I was using Pentax!
3) The next three were my getting use to 135mm... it is an odd length. What were they intended for? SO far I do like the reach and since this one shortens up to 35mm it is useful when I am taking live music shots.
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6) The 50mm
7) Like the Sigma and 135mm. I was able to sit away from her a bit and ask if I may take some photos of her. Length got me close without being in her face.