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11-06-2007, 08:42 PM   #1
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Sigma 24-70 2.8

Considering this as a walk around zoom, normally I only use primes.

Does anyone have any experience with it on a pentax body?

The pentax zooms don't have the range I want (never shoot wider than 24, and 45 or 50 is not long enough) but I'm a bit worried about sigma quality control as I'll be ordering from the states and returning is not really an option...

11-06-2007, 09:01 PM   #2
and
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Sounds risky to me, Sigma QC is not good. If 28 is acceptable I would go for the Tamron 28-75 instead.
11-06-2007, 09:53 PM   #3
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No experience on Pentax, but a friend has it on a Nikon and it is exceptional. Buy it through a store and they should have no problems sending it back if it isn't sharp or something silly.

I'm going to get this lens.
11-06-2007, 10:03 PM   #4
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QuoteOriginally posted by blwnhr Quote
No experience on Pentax, but a friend has it on a Nikon and it is exceptional. Buy it through a store and they should have no problems sending it back if it isn't sharp or something silly.

I'm going to get this lens.
Are you just saying that because every lens you have is a Sigma

11-06-2007, 10:33 PM   #5
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I had this is penatx mount and wasn't impressed. Colour was rather flat and poor contrast. Also not sharp below f4.0.. But who knows with Sigma QC maybe I just got a bad one? Although I know at least one other person who also got a bad one...
11-07-2007, 01:48 AM   #6
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No personal experience with it, but I actually saw one being used on a Nikon on Sunday at the MTB race I went to. It's a bloody big lens for a standard zoom!! Sigma website says 88.7mm X 115.5mm ans 715g... and 82mm filters will be very expensive too.
11-07-2007, 07:50 AM   #7
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how does this compare with the 24-60 f2.8 in terms of quality, as I am looking to get the same range for the same purpose.
11-07-2007, 05:37 PM   #8
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QuoteOriginally posted by Buddha Jones Quote
Are you just saying that because every lens you have is a Sigma
Not in the slightest.

I own the 18-125 because I've had it since day 1 with DSLRs, it's sharp (I must have the only good copy of this lens on earth!) and is a perfect walkaround lens for me.

I own the 50-500 because there were no 80-200's available from Pentax and no 70-200's available from Sigma or Tamron.

I am very seriously considering buying a DA*50-135, depending if I get a contract to shoot a particular event. However my next lens will most likely be a Sigma 10-20. Pentax make the 12-24, but those extra few degrees AOV out of the Sigma will be handy for it's intended purpose.

To sum it all up, I buy the lens that fits the job I wish it to do.

Pentax doesn't make a f2.8 lens in this focal range so other options need to be explored. I find I use the 40-70mm range an aweful lot so this lens fits. The DA*'s don't. Tamron is hardly available where I live so that option is out for me. In addition I know, and have used, this lens in another mount and am very happy with the results, hence why it's on my shopping list.

11-07-2007, 11:07 PM   #9
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QuoteOriginally posted by incitatus Quote
Considering this as a walk around zoom, normally I only use primes.

Does anyone have any experience with it on a pentax body?

The pentax zooms don't have the range I want (never shoot wider than 24, and 45 or 50 is not long enough) but I'm a bit worried about sigma quality control as I'll be ordering from the states and returning is not really an option...
Big, heavy, optically-superb piece of hardware. Unfortunately, many suffer from focusing issues. I've had some serious one on a Canon version.
11-08-2007, 03:29 PM   #10
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I have this lens, and to be perfectly honest, it is excellent. Even at F2.8 I have had no problems, and it is my primary lens. It is even better at F8, but it works extremely well at most aperatures.

Get one, you wont be disappointed.
11-08-2007, 04:59 PM   #11
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QuoteOriginally posted by Lowell Goudge Quote
how does this compare with the 24-60 f2.8 in terms of quality, as I am looking to get the same range for the same purpose.
I ended up going this route and my copy is great. Pretty sharp all through the range at 2.8. Its nice having a smaller and lighter lens than the 24-70 and the 77mm filter thread size is great because i dont have to go out and buy new filters because ive already got some for the 10-20.
11-08-2007, 05:15 PM   #12
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QuoteOriginally posted by -spam- Quote
I ended up going this route and my copy is great. Pretty sharp all through the range at 2.8. Its nice having a smaller and lighter lens than the 24-70 and the 77mm filter thread size is great because i dont have to go out and buy new filters because ive already got some for the 10-20.
I'm in the same position, in fact if I go this route (probable) it will be my 5th 77mm diameter lens
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