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Old Oct 4, 2009, 10:34 AM   #1
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Default Sigma AF APO 120-300mm F2.8 EX DG HSM for Pentax

I didn't think anyone made a telephoto zoom for Pentax to 300mm at f2.8, but Ifound this for sale on the Calumet photo website. Has anyone heard of Sigma coming out with this lens in Pentax mount? The Sigma website doesn't show it as available for Pentax.

Calument web site:
http://www.calumetphoto.com/item/SM41735/

Sigma web site for this lens:
http://www.sigmaphoto.com/lenses/len...74&navigator=3
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Old Oct 4, 2009, 12:00 PM   #2
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If you look at the lens lists, you can see how they got the Manufacturer's part number for it (shown as 135-109 on Calumet's site). Basically, you just append the correct mount code (109 for Pentax) to the end for any lens offered to come up with the complete part number.

http://www.sigmaphoto.com/lenses/lenses_chart.asp

But, it's not available for Pentax (and the lens listings on Sigma Japan's web sites concur).

Also, note that they say "Call for Availability" versus In stock. ;-) IOW, they probably just added the same lens for all mounts in their listings, without checking with Sigma to see if they plan to eventually offer it for Pentax (and I've seen no announcements to that effect from Sigma).
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Old Oct 4, 2009, 12:06 PM   #3
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Here's the English version of new the Sigma Lens catalog (.pdf) from Sigma Japan's site, just updated on October 2, 2009. If you look at the last page, you'll see a list showing it's still not available for Pentax.

http://www2nd.sigma-photo.co.jp/down...ns-English.pdf
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Old Oct 5, 2009, 1:54 PM   #4
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$3190 is my problem
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Old Oct 5, 2009, 2:17 PM   #5
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That's actually cheap compared to some of the 300mm f/2.8 AF prime lenses from various camera manufacturers. ;-)

But, the prices for it have increased a lot over the past couple of years from what some of our members shooting Canon have mentioned (for example, both JohnG and Mark1616 have that lens and use it for sports on Canon bodies).
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Old Oct 5, 2009, 4:25 PM   #6
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Quote:
Originally Posted by robar View Post
$3190 is my problem
I don't like the $3190 either, but the fact is, that's what it's going to cost to get a fast, 300mm lens for low light. I don't see any other choices. Pentax has chosen not to make a 300mm F2.8 lens of any kind over the last couple of years, even though they have now come out with a quality, semi-pro camera that can actually take quality action shots in the K7. More and more enthusiast (like me) want more out of their cameras and are willing to pay for quality lenses. When you look at the sidelines of my son's games, there are 6 or 7 cameras with hard core, f2.8 lenses at every game. 5 years ago, you might find 1 in the stands. If Pentax made their FA* 300mm, I'd buy it any day over a Sigma. I just let one get away on ebay that went for about $2,400 and I'm kicking myself over it. It's worth the price to me and if it's cared for, they decrease very little in value.
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Old Oct 6, 2009, 5:57 AM   #7
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Quote:
Originally Posted by jnanpentaxfan View Post
I don't like the $3190 either, but the fact is, that's what it's going to cost to get a fast, 300mm lens for low light. I don't see any other choices. Pentax has chosen not to make a 300mm F2.8 lens of any kind over the last couple of years, even though they have now come out with a quality, semi-pro camera that can actually take quality action shots in the K7. More and more enthusiast (like me) want more out of their cameras and are willing to pay for quality lenses. When you look at the sidelines of my son's games, there are 6 or 7 cameras with hard core, f2.8 lenses at every game. 5 years ago, you might find 1 in the stands. If Pentax made their FA* 300mm, I'd buy it any day over a Sigma. I just let one get away on ebay that went for about $2,400 and I'm kicking myself over it. It's worth the price to me and if it's cared for, they decrease very little in value.
I was fixing to say that they are still available used on Ebay..But I see you know that. To me a used FA* 300 f/2.8 is better than the Sigma if you could get one in Pentax mount. It just takes time and patience for one to show up. Have you tried any of the online stores to see if they could find you a FA* 300 f/2.8? Quite often they will look one up for you...especially at the price these go for. Try these two

http://shop.ebay.com/ian.hobday/m.ht..._from=&_ipg=25

http://stores.shop.ebay.com/Matsuiyastore__W0QQ_armrsZ1

The second one will try to help.
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Old Oct 6, 2009, 6:09 AM   #8
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Quote:
Originally Posted by JimC View Post
That's actually cheap compared to some of the 300mm f/2.8 AF prime lenses from various camera manufacturers. ;-)
Examples from B&H:

Canon 300mm f/2.8L IS USM for $4599
http://www.bhphotovideo.com/c/produc...mm_f_2_8L.html

Nikkor 300mm f/2.8 AF-S VR for $5299
http://www.bhphotovideo.com/c/produc...AFS_ED_IF.html

Sony 300mm f/2.8G SSM for $6299
http://www.bhphotovideo.com/c/produc...f_2_8_APO.html

Note that you can find the Sigma 300mm f/2.8 in Pentax mount. It's $3299 right now at B&H:

http://www.bhphotovideo.com/c/produc...2_8_EX_DG.html
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Old Oct 6, 2009, 7:17 AM   #9
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Quote:
Originally Posted by jnanpentaxfan View Post
If Pentax made their FA* 300mm, I'd buy it any day over a Sigma. I just let one get away on ebay that went for about $2,400 and I'm kicking myself over it. It's worth the price to me and if it's cared for, they decrease very little in value.
You mention football. One thing that you have to be very conscious of for sports shooting is the focus speed of the lens. I have no idea of the capability of the Pentax 300 from a focus speed standpoint. I know it's sharp. But that's not much if your images are still soft - 300mm f2.8 is some pretty shallow DOF and focus errors or slowness on the part of the camera or lens are much more noticable.

As a related example, Canon makes two 85mm lenses. An 85mm 1.8 and an 85mm 1.2L. The 1.2 is sharper, better build and in general a superior lens. However, it's slower to focus than the 1.8 (even the newer version - the older 1.2 was reportedly much slower). They both have Canon's USM focus motor. But the devil is in the details of how the focus was integrated and the elements involved. Bottom line is - the sharper lens is a poorer choice for sports shooters.

Again, I have no idea how quickly the 300mm focuses but be very careful - especially when spending $3000 that you consider how well the ENTIRE package works for your desired needs. I would never consider paying $2400 with the intent of shooting sports without good solid evidence the focus in the lens is up to the task. Which is somewhat of a conundrum - prior to the K-7, the camera bodies were a weak link in the focus chain for Pentax. Still, the bottom line is photographic evidence. Look for people that shoot sports with the lens. And ask to see galleries - not just the 1 or 2 shots they post in a forum. This is true of any manufacturer.
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Old Oct 6, 2009, 6:01 PM   #10
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Good advice, John.
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