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02-05-2007, 10:10 AM   #1
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Sigma 170-500mm? Any thoughts?

I have read plenty of great reviews on the Sigma 50-500mm, but can't find much on the Sigma 170-500mm. Since I can get the 170-500 for about $150 less than the 50-500, was wondering if there was a big difference in picture quality between the two.

Thanks in advance!

ISH

02-05-2007, 12:11 PM   #2
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QuoteOriginally posted by ISH Quote
I have read plenty of great reviews on the Sigma 50-500mm, but can't find much on the Sigma 170-500mm. Since I can get the 170-500 for about $150 less than the 50-500, was wondering if there was a big difference in picture quality between the two.

Thanks in advance!

ISH
For the extra $150, I would certainly go for the Bigma without any doubt, from those I know who've had both, the Bigma is the clear winner by a long way.
02-05-2007, 01:50 PM   #3
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Try the summary here: photozone. --performance data from actual users.
02-05-2007, 04:05 PM   #4
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QuoteOriginally posted by Richard Day Quote
For the extra $150, I would certainly go for the Bigma without any doubt, from those I know who've had both, the Bigma is the clear winner by a long way.
DITTO!!!!
they's a guy over at steve's that getting incredible results from the Bigma.

02-06-2007, 12:09 AM   #5
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I have this lens. It works well enough, but it is a bit soft and slow at 500mm. I did get it for only $350 at KEH over a year ago so it wasn't a bad deal. However, after attempting to get shots of Hawaiian forest birds (damn fast flitty things ) I am already considering upgrading to the Sigma 500mm f4.5 or the 300 f2.8 with 2X teleconverter. The FA 600 is a bit too expensive though. But of all of these, I would sell my left foot for a SigMonster with SSM and in the Pentax mount...
02-06-2007, 02:32 AM   #6
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QuoteOriginally posted by HawaiianOnline Quote
I have this lens. It works well enough, but it is a bit soft and slow at 500mm. I did get it for only $350 at KEH over a year ago so it wasn't a bad deal. However, after attempting to get shots of Hawaiian forest birds (damn fast flitty things ) I am already considering upgrading to the Sigma 500mm f4.5 or the 300 f2.8 with 2X teleconverter. The FA 600 is a bit too expensive though. But of all of these, I would sell my left foot for a SigMonster with SSM and in the Pentax mount...
The FA*300/2.8 and FA*600/4.5 are, as you say, huge money! Even the Sigma primes aren't cheap!

I am asking Pentax (UK) to forward my request for a DA* 135-500 f4.0-5.6 (or even 6.3 if sharp), i.e. a "Pentax Bigma" for circa $2,000. With * optics, weather sealing and SDM it would seriously open up the pro/am sports, aircraft, wildlife and birding market to Pentax and that's a large community.
02-06-2007, 05:41 AM   #7
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My bigma broke after 2 week's use. I bought it off the internet in Australia and the lens was sent in to repair for 5 weeks for broken AF parts...

This lens looks big but not heavy to hold (comparing to any other 500mm you can think of) and it is relatively sharp wide open til 430mm onwards.

Mine needs calibration to be sharper... It is a bit too dark to use at long end f6.3 and I can really use it when there is a full blown sunlight.

Using it on briding photography is really a pain since most birds hide among foliage rather than coming out into the sun.

I heard many nasty things about sigma 170-500mm but I am sure there will be people backing this lens up.

Bigma is certainly a bargain for its quality. Its focal length from 50mm to 200mm is a bit useless with aperture f4 or above. Otherwise I would not complain too much about this lens



Cheers
02-06-2007, 08:44 AM   #8
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QuoteOriginally posted by Richard Day Quote
The FA*300/2.8 and FA*600/4.5 are, as you say, huge money! Even the Sigma primes aren't cheap!

I am asking Pentax (UK) to forward my request for a DA* 135-500 f4.0-5.6 (or even 6.3 if sharp), i.e. a "Pentax Bigma" for circa $2,000. With * optics, weather sealing and SDM it would seriously open up the pro/am sports, aircraft, wildlife and birding market to Pentax and that's a large community.
I would love to see more Pentax long glass, especially zooms after the demise of the 250-600. The Sigma 500 can be had for a little over the price of 2 Bigmas, so it's a more reasonable choice for me compared to the Pentax FA 600. It'll take me a bit longer to save up the money for the Sigma, but I think that it's worth it.

As for the 170-500, my copy produces acceptable shots of subject that are relatively close. I've taken surfing shots of guys on the outside break at Waimea which is about 1/4 mile away and these are usually not that good. Shots of surfers at 3 Tables (another North Shore surf spot) are done from 50-100 yds away and they usually look much better to me. Sigma has always seemed to have a spotty reputation when it comes to the quality of a single model of lens. Some photogs get good copies, others get bad ones. If you do buy one, get it from a dealer that will let you exchange it for another in case it's a bad copy.

02-06-2007, 11:41 AM   #9
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Thanks for all the input, looks like I'll have to pony up for a 50-500 and join all the other bigma users out there.
02-06-2007, 09:21 PM   #10
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QuoteOriginally posted by ISH Quote
Thanks for all the input, looks like I'll have to pony up for a 50-500 and join all the other bigma users out there.
Good decision. If I had to do it again, I would get the Bigma over the 170-500. Of course, the LBA doesn't end after that. There's still the FA 600 f4, the Sigma 500 f4.5, and the Sigma 300-800 if they ever get around to making a Pentax version of it (big big hint Sigma) .
02-06-2007, 09:33 PM   #11
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New version of Sigma 500 f4.5

QuoteOriginally posted by HawaiianOnline Quote
Good decision. If I had to do it again, I would get the Bigma over the 170-500. Of course, the LBA doesn't end after that. There's still the FA 600 f4, the Sigma 500 f4.5, and the Sigma 300-800 if they ever get around to making a Pentax version of it (big big hint Sigma) .
I would prefer to spend the money on pentax fa 600 f4 instead of sigma 500 f4.5

The images are really different from what i searched in pbase... pentax 600 f4 really shines with images produced by this lens while sigma 500 f4.5 still kind of gives that fussy look (maybe the photographer's faults?)

Aren't they all heavy lenses?

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