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LBA: Sigma 8-16mm/4.5-5.6 HSM first shots
Posted By: tcom, 06-26-2010, 11:45 AM

Hi

Over the years, I liked ultra wide angle lenses more and more. They are tough as they need extra attention when composing the shot to get attractive photos, but then, they allow some very dynamic shots. That's why I contacted the Sigma rep and asked when the Sigma 8-16 will be available in Pentax mount. The rep told me that he will inform me when he knows somethings, usually the Pentax mount version is released 2-3 months after the C/N mounts.

On Wednesday he sent me an EMail telling the first lenses arrived, I could go to a shop and order one if interested, that what I did on the same day. Yesterday, I could pick it up.

The lens does make a sturdy impression. The build quality seems very high. The lens is HSM only, so it will require an Pentax DSLR with SDM support to work.

On first tests, I encountered a problem with the lens. When the focal is below 10mm, the K-7 (as well as K-x and K20D) does not seem to understand the focal length transmitted by the lens and displays ---mm on the display. The focal length is also missing in the EXIF, PhotoME reports focal length not set. When the lens is set between 10 and 16mm, it works. I will see what the Sigma rep says about it...

So, but what does the lens deliver? Photos of today, all taken with K-7

1 Statue in Vevey
below 10mm (probably 8mm), f/8, 1/200s, 100iso


2 Steamboat Vevey, in Vevey
11mm, f/6.3, 1/800s, 100iso


Fields of daylilies
3
below 10mm, f/10, 1/125s, 100iso


4
below 10mm, f/5, 1/500s, 100iso


5
below 10mm, f/10, 1/125s, 100iso


6 Chillon Castle
12mm, f/7.1, 1/400s, 100iso


7 Steamboat La Suisse

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07-07-2010, 06:51 PM   #16
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Thanks for posting these Dominique,
I might have to put my DA*300 on the market to get this lens.
Corner sharpness look pretty darn good.

JayT

07-08-2010, 01:30 AM   #17
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Original Poster
QuoteOriginally posted by KxBlaze Quote
Those photos look amazing but I am curious also about the camera not being able to recognize anything below 10mm. I see you took some pics at 8mm, so does it mean that you can still take 8mm pics but the camera will not transmit any of the electrical data? How about AF at 8mm? and apature at 8mm?
The lens transmits all information to the camera, even below 10mm. It is just that below 10mm, the camera does not understand the focal length.

There is absolutely no problem in using this lens below 10mm. Aperture, exposure and AF do work without any problem. There are just two things which do not work, SR and writing the focal length into EXIF. The remaining is fully working,
07-08-2010, 01:31 AM   #18
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QuoteOriginally posted by Sirfishalot Quote
Thanks for posting these Dominique,
I might have to put my DA*300 on the market to get this lens.
Corner sharpness look pretty darn good.

JayT
Thank you JayT. As good as the 8-16 is, I would never change the DA*300 for this 8-16.
07-08-2010, 05:51 AM   #19
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solid shots! what's the damage?

07-08-2010, 06:10 AM   #20
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All great looking shots!
When I first read about the lens I was curious about how much distortion it possibly could have but looking at your photos it doesn't look like an issue at all.
07-08-2010, 06:30 AM   #21
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QuoteOriginally posted by tigershiok Quote
solid shots! what's the damage?
I think Adorama in NYC sells it for $699.
07-10-2010, 08:28 AM   #22
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QuoteOriginally posted by tcom Quote
The lens transmits all information to the camera, even below 10mm. It is just that below 10mm, the camera does not understand the focal length.

There is absolutely no problem in using this lens below 10mm. Aperture, exposure and AF do work without any problem. There are just two things which do not work, SR and writing the focal length into EXIF. The remaining is fully working,
I got this lens today and was surprised by this problem. I did not know if it was a defect or not, but then I searched for pictures on Flickr and found some pictures taken with Canon and they had the FL information even on 8 mm whth this lens. Then I found one post on dpreview, which had a quote of reply from Sigma. It also stated, that the problem is in the camera. Maybe it is time for some firmware updates from Pentax Imaging (Hoya)?

At least there's no need to go to the store for a replacement now
07-11-2010, 03:12 PM   #23
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great shots, amazing lens..

07-11-2010, 04:49 PM   #24
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I think the lens is a keeper but the true keeper is the guy behind the camera. Great as usual Dominique. JIM
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