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11-18-2013, 06:30 AM   #16
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Numbers Don't Lie?

Wide and fast for Pentax? Spend a few (OK, more than a few!) minutes on the Sigma home site and you might be surprised.
First off, Sigma makes 23 primes and 20 zooms.
Keeping those totals in mind - and there'll be a quiz later - how many would you guess they make in Pentax mount?
As you might imagine, every one is available I have to say it? Nikon and Canon.
How about Sony? They're a smaller market, but still larger than Pentax, right? Yep, but it's not that clear. There's the Sony Alpha mount, Sony E mount and Sony/Minolta Maxxum mount. Put' em all together and Sigma makes;
17 primes and 16 zooms for Sony. Not every lens in every Sony mount, though. Some in E, some in Alpha, etc.
And I think we can safely rule out the 200-500mm f/2.8 (yes, you read that right!) EX DG APO IF tele zoom, available in camo green only, mounts available are Canon and Nikon only. This 34.5 lb beauty comes with an included 2x converter for those who need a 400-1,000mm f.5.6. Oh, did I mention the price?
$26,000. USD.
Back to Pentax-mount offerings. No cheating now, what's your guess?

13 primes, Slightly more than half of the total Sigma prime offerings. Maybe not every one you want, but still...want wide? Want fast?
4.5mm f2.8 EX DC HSM $ 900
10mm f/2.8 EX DG HSM Fisheye $650
15mm f/2.8 EX DG Fisheye $ 600
20mm f/1.8 DG DF RF $ 630
24mm f/1.8 EX DG DF $ 550
28mm f/1.8 Macro EX DG DF $ 450
35mm f/1.4 DG HSM $ 900
50mm f/1.4 EX DG HSM $ 400
50mm f/2.8 Macro EX DG $ 370
70mm f/2.8 Macro EX DG $ 450
85mmm f/1.4 EG DG HSM $ 900
300mm f/2.8 EX DG HSM $ 3,400
500mm f/4.5 EX DG APO $ 5,000.

12 Zooms in Pentax mount. Slightly more than half the Sigma zoom selection;
10-20mm f/3.5 EX DC HSM $ 650
10-20mm f/4.0-5.6 EX DC HSM $430
12-24mm f4.5-5.6 EX DG ASP HSM II $ 850
17-70mm f/2.8-4.0 DC Macro OS HSM $ 500
18-200mm 3.5-6.3 II DC OS HSM $ 350
18-250mm f/3.5-6.3 DC Macro HSM $ 350
24-70mm f/2.8 IF EX DG HSM $ 825
50-500mm f/4.5-6.3 APO DG OS HSM $ 1,500
70-200mm f/2.8 EX DG APO OS HSM $ 1,250
70-300 f/4-5.6 DG AF $ 200-$300 depending on mount
120-400mm f/4.5-5.6 DG OS HSM APO $ 900
150-500mm f/5-6.3 DG OS HSM APO $ 1,000
A minor disclaimer; I also checked the B+H listing for Sigma/Pentax and there's some differences, a couple listed in B+H, but not listed on Sigma's site and vice-versa. Might be close-outs, discontinued, not yet for sale or a plain ol' mistake. YMMV.

Maybe the 3rd party support isn't quite as miserable as it's made out to be? Just saying.

Last edited by rbefly; 11-18-2013 at 07:14 AM.
11-18-2013, 06:51 AM   #17
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No one ever asks, why don't Pentax users buy more Sigma lenses? The last little while Sigma has made some revolutionary lenses, like the Sigma 8-16. You read about this lens in the reviews and the blogs and it was the greatest thing since sliced bread. Corrected of both distortion and aberration at a previously unheard of level for even a prime that wide forget about a zoom. Yet here we are, 8 months after I bought mine, and it's been discontinued for Pentax.

For me, I carry the lens, simply because it has no equal for landscape or architecture, but, it's heavy, and if I take the DA* 60-250, the Sigma 70 and th 8-16 in a backpack with the 18-135 on the camera, I'm carrying a lot of weight. Right now, I'm seriously thinking of selling the Sigma 70 and looking for a 50 macro, just to try and shed some grams. (Is he ever going to get to the point, you're wondering by now.)

The point is, I wouldn't ad another Sigma right now, they are great studio glass, but they are too heavy to carry, I have to carry the 8-16, it has no competition. But I may be soon shedding the 70 macro, it's a great lens that I thoroughly enjoy, but it's considerably heavier than the Tamron 90 macro my wife uses. So I'm guessing, that if part of the reason Pentax's are popular with their clientele is the weight to performance ratio. And Sigma is going with wide, highly corrected designs that while great performers, don't fit the Pentax model. ( I'd say they are heavy but since I been married, that word and it's corollaries never cross my lips.)

So, there's a little advice here, when Sigma puts out a lens you want, buy it while it's there. Our last two Sigma purchases, the 18-250 and 8-16 are both discontinued. And I'm guessing that's not because they sold so well. Those of you crowing about the 18-35 when it come out in Pentax mount, don't be waiting for it to get cheap. You may end up with nothing.

Last edited by normhead; 11-18-2013 at 07:04 AM.
11-18-2013, 06:56 AM   #18
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If each Pentax user would now go out and buy two or three lenses from each category rbefly mentioned I can promise you that Sigma will produce the 30mm in Pentax mount.
11-18-2013, 07:08 AM   #19

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Well, our importer said it's available for Pentax. Sorry for the confusion. I see it can't be bought anywhere.

11-18-2013, 07:17 AM   #20

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Sigma generally makes the K mount for their lenses but makes lenses with Sigma, Nikon and Canon first. Then Sony and Pentax mounts sometime later.

I don't know how long the Sigma 30 F 1.4 has been out. some cases some Sigma lenses don't have the K or Sony mount.....
11-18-2013, 08:37 PM   #21
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I wonder if you can use Sigma's mount switching service to make one. Probably not. Perhaps they sell the 35/1.4 because the margins are better.
11-18-2013, 08:39 PM   #22
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QuoteOriginally posted by kenafein Quote
I wonder if you can use Sigma's mount switching service to make one. Probably not. Perhaps they sell the 35/1.4 because the margins are better.
No, you can only switch to a mount for which the lens it's already available in.


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