just became a pentaxian (k-5) now for lens lust to kick in

[lanegd01]

I just ordered a new K-5. It arrives Monday

A nice shiny 18-135mm will be attached to go with my ancient 50mm and 135mm.

Looking for longer telephoto. Seems like lots of options,
Any suggestions welcome.

Thanks

[crf529]

Congrats on the camera! Awesome.

What do you want in the lens? Big reach? Speed? Both?

[JM Tran]

most serious ppl who buy Pentax buy it for the Limited prime lenses, some of the best primes ever made, dont neglect them!

[doombaj01]

Think about DA*300 f4, with a Kenko 1.5x or Tamron 1.4x TC; or alternatively a Sigma 100-300 f4 DG EX, also with a TC. Unfortunately, the Sigma is no longer in production.

[lanegd01]

Congrats on the camera! Awesome.

What do you want in the lens? Big reach? Speed? Both?

Probably the reach but speed is a factor. Sharp at the long end. (oh and magically make my shooting better than average)

[lanegd01]

Think about DA*300 f4, with a Kenko 1.5x or Tamron 1.4x TC; or alternatively a Sigma 100-300 f4 DG EX, also with a TC. Unfortunately, the Sigma is no longer in production.

Do you lose much speed or sharpness using the 1.5X??

[Wizofoz]

congrats on the K-5 wonderful camera.

I'd also suggest you have a look at the Sigma 150-500. I use it a lot for the reach it gives me at sporting fixtures.

[crf529]

Both the Sigma and Tamron 70-200 2.8 are great lenses, as well as the Bigma 150-500. It will most likely come down to how much you are willing to lay out.