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01-12-2014, 04:10 PM   #1
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K-50 with 3rd party zoom lens

Okay; so the decision about K-3 vs K-50 has been made (K-50 for a number of reasons that make sense to me). Now the question is which lens?

While the standard 18-55 is an okay lens, I'm spoiled by the range on my Fuji bridge cameras (S100fs 28-400, S9100 28-300). So I'm leaning toward the new Sigma 18-200 Macro (announced this past week I believe). That will give me the same range as the S9100 with all the goodness the K-50 will bring. The price even seems reasonable ($300 list).

But looking at the K-50 manual, it appears as if I must set the shake reduction for whatever focal length I set on the lens. While this isn't much of an inconvenience if I'm shooting a still life on a tripod (and, frankly, SR isn't even needed then), what about street shooting, etc.?

I imagine genuine Pentax zoom lenses (18-55, 18-135,...) that are new enough transmit this data automatically to the camera. But what about the Sigma? (I sent off an eMail to Sigma about this; perhaps I'll get a useful answer.)

I suppose, assuming the Sigma doesn't transmit its focal length to the K-50, that I might set some number in the SR panel. What would you think would happen if I used "200" when I attach the lens and leave it there?

Thanks,
Barry

01-12-2014, 04:20 PM   #2
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Isn't setting the number manually only used for manual lenses? AF lenses do not need to input the numbers
01-12-2014, 04:47 PM   #3
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felixkh: Upon further research, I've found a few posts elsewhere (imaging-resource) where someone asked essentially the same question I did and found the same answer you so kindly provided. Thank you.

So this "issue" would be present on my old 70-210 Vivitar Series 1 but not on any AF lenses. Good info to know.

Barry
01-12-2014, 06:36 PM   #4
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QuoteOriginally posted by rumplestiltskin Quote
But looking at the K-50 manual, it appears as if I must set the shake reduction for whatever focal length I set on the lens. While this isn't much of an inconvenience if I'm shooting a still life on a tripod (and, frankly, SR isn't even needed then), what about street shooting, etc.?
This only applies to manual lenses. With AF lenses everything's automatic

Superzoom lenses are cool if you just want a single lens for everything, but they don't have the best image quality. I would recommend at least checking out the Sigma 17-70mm as a replacement for the 18-55:

Sigma 17-70mm F2.8-4 Contemporary - Introduction - PentaxForums.com
Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax 884109 B&H


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01-13-2014, 08:24 AM   #5
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For a starter kit, I would highly recommend going with the Sigma 17-70 and the DA 55-300. This combo will be much better optically.

I went with the Pentax DA 18-135 because I live in Florida and a WR walk around is a must for me. If I lived someplace drier, I'd replace my 18-135 with the Sigma 17-70 is a heartbeat.
01-13-2014, 10:14 AM   #6
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Hmmm...two votes for the 17-70 Sigma. The extra few degrees of coverage on the wide end is tempting. Very good review of that lens.

Downside: Double the cost (two rather than one), carrying an extra lens, changing lenses in the field (dust). (Not trying to convince anyone of anything - just what ran through my mind.)

I'll be ordering the camera and lens(es) this week. I'll post when I do.

Thanks, all, for your advice.
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