For those of you who haven't stumbled upon my updates (
Update Number One and
Update Number Two), I am currently in Afghanistan on a combat deployment. Essayons!
(Motto for the Engineers, which is my branch, specifically the combat/route clearance side of engineering)
But I made a big hassle of trying to get what I felt was the perfect (for me), all-inclusive (for me), most versatile (for me) camera/lens combinations. I have with me the following:
K-5 + grip
K-7 back up
DA* 16-50
DA* 50-135
DA 55-300
DFA 100mm Macro WR
Sigma 8-16
In the past 3 weeks, I have found that 95% of my shooting happens with the 16-50 - it just is a VERY good daily-use lens, especially for what I do.
Now while I love every one of those lenses, I was wondering, did I make a mistake in getting the 50-135 and not the 60-250? All the reviews I have read indicate the latter is of equally outstanding quality, and it isn't all that much bigger (weight isn't an issue for me). I understand the main difference is the 10mm on the wide end (I won't lose sleep over 10mm, especially since I still have up to 50 covered with the 16-50), as well as the f/4 vs f/2.8. With the absolutely astounding high ISO capabilities of the K-5, is the difference between 2.8 and 4 almost negligible? And then with the longer focal lengths, wouldn't that more than make up for the difference in apertures with regard to subject isolation/DOF?
I understand the 60-250 can be used for impromptu portraits, but that really isn't its main purpose, especially since maxed out at the wide end of 60, you are already flirting with losing the "ideal" focal length for portraiture (90mm with the crop factor as compared to the ideal of 85mm). So I was thinking that an even better combination than what I have now is the 60-250 and the DA* 55 f/1.4, the latter of which would obviously be the defacto portrait lens, and it would more than compensate for the 50-135's faster speed.
Also, I was hesitant to get the 60-250 because I was/am also seriously considering the new Bigma OS 50-500. But having both the 60-250 and the 50-500 would have been an absolute waste. But now with the recent announcement of the new DA 560mm, I think that would cover my super telephoto range perfectly, thus rendering the 60-250 once again a great addition (I could live with the 250-560mm gap for now, assuming I had both those lenses).
So, If you were able to do so financially, would you recommend selling the 50-135 and the 55-300 in order to get the 60-250 and the 55? Please keep in mind I am not looking for alternatives from third parties because I absolutely require weather sealing (Pentax doesn't make an 8-16, so I made an exception) without completely breaking the bank.
I am very eager to see what you guys have to say
Much obliged,
Heie