I started with the d-slr thing about a year and a half ago.
I had NO idea.
This is somewhat the order of madness. ( if memory holds )
K10D - I purchase the kit lens and a Tamron 70-300.
For general zooms
Pentax18-55
Sigma 17-70
Tamron 28-75
now Pentax DA* 16-50.
I tried the Tamron SP 35-105 f2.8 in there somewhere.
For Macro ( this is where it has been real nuts )
Tamron 90 2.5 52b -52bb
-72A-
Sigma 105-
Viv 105
to the now FA 100.
I tried the Viv 90 2.5 in there somewhere also and I just ordered the Sigma 70.
I have been obsessing over the Tokina 90 2.5 and the Pentax A 100 2.8 and have came real close to purchasing the A* 200 macro.
For Primes
SMC K 50 1.2- to the now Nokton 58 1.4
Takumar 85 1.9
Takumar 85 1.8
to the now FA 77 Limited and have seriously thought about replacing with Fa 85 1.4
I have the smc k 55 1.8 also
I think I had a super tak 50 1.4
Opps, I almost forgot I had an adaptall 28mm 2.5 and the 300 5.6
I have held tight to the Sigma 100-300 F4 but I will be honest, I have contemplated trading for the Pentax DA 60-250.
TCs
Tamron 1.4-Sigma 1.4 & 2x Pentax AF 1.7 all I no longer have but await the Promaster 1.7X
So as it is, I have the Sigma 70mm macro and the Promaster 1.7 in the mail so I am content ( sort of ) for the moment.
This list of course does not show all the filters, tripods, bags and various others accessories.
I guess a stay tuned is in order?