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08-30-2011, 06:19 AM   #1
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Binned my Sigma 10-20mm for a Tokina 11-16mm

Hi guys,

I just wanted to throw some thoughts into the above lens purchase.

I wasn't ever 100% happy with my Sigma 10-20mm in terms of sharpness and found myself lusting after the resolution figures of the Tokina 11-16 f/2.8. I do not regret the purchase one bit, the sharpness is much improved over the Sigma particularly in the corners. There's also something about the clarity and micro contrast, definitely seems to have more of a punchy image. If Pentax every did a DA * 11-16 f/2.8, it would be an absolute winner. I appreciate Sigma's 8-16mm is meant to be an improvement on the older lens, but you can't use that with filters which would scunner my landscape work . The benefit of f/2.8 will come into it's own when I start doing some milky way / astronomy shots.

My only complaint are the chromatic abberations - they're definitely a bit of an issue on the Tokina, the Sigma is much better in this respect. However, not to worry, it's easily fixed in RAW; just need to watch for JPEG shooters.

Here are some shots with the Tokkie:

The Cauldron | Flickr - Photo Sharing!

Inside The Cauldron | Flickr - Photo Sharing!

A day at the beach | Flickr - Photo Sharing!

http://www.flickr.com/photos/garethpaxton/6083497869/in/photostream/

08-30-2011, 07:26 AM   #2
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Very nice. What brand are you shooting with that lens? Has nobody come up with a solution for the 8-16mm and filters? I figured they'd have some sort of mounting kit for square filters by now.
08-30-2011, 07:44 AM   #3
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That's a Canon mount, but a Pentax mount can't be far away and strengthens the case for a DA * 11-16mm f/2.8. A weather sealed version of the Tokina is something I'd be very interested in!
08-30-2011, 07:48 AM   #4
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I don't think it's going to happen. People have been speculating for that lens to come to pentax for about 3 years. Though now that Ricoh owns Pentax, Tokina and Pentax might lose their cooperative partnership. Maybe Tokina will be free to make lenses in PK mount again.

08-30-2011, 08:14 AM   #5
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QuoteOriginally posted by kenafein Quote
Maybe Tokina will be free to make lenses in PK mount again.
I'd love to see that happen. Although I'd be fairly satisfied with just seeing all the good Tokina lenses with a Pentax label.
08-30-2011, 09:09 PM   #6
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That last shot is utterly fantastic! Mind sharing some tips on how you captured it? I'm guessing a 2 second exposure @ F22 with a GND filter.

For this range, I've been mainly considering the Samyang 14mm 2.8, wish I had the Tokina as an option!
08-31-2011, 01:54 AM   #7
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Hi Jeff,

The last one was taken at f/11 for 45 seconds.

I used the Lee Big Stopper (10 stops) to get the exposure time and a Lee 0.9 ND Grad to filter out the top portion of the image.

Cheers
08-31-2011, 06:30 AM   #8
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QuoteOriginally posted by Big G Quote
I wasn't ever 100% happy with my Sigma 10-20mm in terms of sharpness and found myself lusting after the resolution figures of the Tokina 11-16 f/2.8.
It might have just been your copy of the 10-20mm. I had a Sigma 10-20mm F4-5.6 and I too was never 100% happy with it and always felt that it wasn't as sharp as it could be; e.g. photos from other people and their 10-20mm always looked that much sharper.

I then got the Sigma 10-20mm F3.5 and haven't looked back. The 10-20/3.5 was also quite a bit sharper than my copy of the 10-20/4-5.6. Anyway, as long as you're happy with your Tokina 11-16mm F2.8, then that's what really matters.

08-31-2011, 06:34 AM   #9
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QuoteOriginally posted by Big G Quote
Hi Jeff,

The last one was taken at f/11 for 45 seconds.

I used the Lee Big Stopper (10 stops) to get the exposure time and a Lee 0.9 ND Grad to filter out the top portion of the image.

Cheers
Thanks Big G, I'll have to look into that 10 stopper. Great work!
08-31-2011, 07:01 AM   #10
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QuoteOriginally posted by pop4 Quote
It might have just been your copy of the 10-20mm. I had a Sigma 10-20mm F4-5.6 and I too was never 100% happy with it and always felt that it wasn't as sharp as it could be; e.g. photos from other people and their 10-20mm always looked that much sharper.

I then got the Sigma 10-20mm F3.5 and haven't looked back. The 10-20/3.5 was also quite a bit sharper than my copy of the 10-20/4-5.6. Anyway, as long as you're happy with your Tokina 11-16mm F2.8, then that's what really matters.
Possibly, I had two copies though; one in Canon mount and one in Pentax mount. Great as it was, it just wasn't as good as I could have hoped for. I understand that the f/3.5 version is definitely better than the f/4-f/5.6 which seems to fit with what you've found.
08-31-2011, 11:33 AM   #11
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QuoteOriginally posted by Big G Quote
Possibly, I had two copies though; one in Canon mount and one in Pentax mount. Great as it was, it just wasn't as good as I could have hoped for. I understand that the f/3.5 version is definitely better than the f/4-f/5.6 which seems to fit with what you've found.
Actually common knowledge (as advised on this and other forums) has that the other way around and people are advised only to buy the f3.5 if they need the constant fstop. Personally I couldn't say but I have the 4-5.6 and it's a great lens that I'd only change for the Pentax 12-24.
09-01-2011, 03:42 PM   #12
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QuoteOriginally posted by Big G Quote
That's a Canon mount, but a Pentax mount can't be far away and strengthens the case for a DA * 11-16mm f/2.8. A weather sealed version of the Tokina is something I'd be very interested in!
Performance on Canon (assuming it's a 1.6x sensor) might be better for any given lens since the corners aren't as far in... the corners of the image circle. But coverage is less too, of course.

It seems unlikely a Pentax version will be forthcoming in any case, although it would be nice to have more choices.

Paul
09-02-2011, 09:36 PM   #13
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QuoteOriginally posted by CFWhitman Quote
I'd love to see that happen. Although I'd be fairly satisfied with just seeing all the good Tokina lenses with a Pentax label.
And a Pentax premium.
09-03-2011, 05:42 PM   #14
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QuoteOriginally posted by Frogfish Quote
And a Pentax premium.
And don't forget, with a seriously truncated warranty. Tokina lenses come with a three-year warranty, compared to the one-year for Pentax lenses.
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