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Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Pentax Digital DSLR Camera
Brand | Sigma |
Focal Length Description | 50-500 millimeters |
Lens Type | Telephoto |
Compatible Mountings | Pentax KAF3 |
Camera Lens Description | 500 millimetres |
About this item
- Lens Construction consists of 22 Elements in 6 Groups; 4 SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness.
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From the manufacturer
50-500mm F4.5-6.3 APO DG OS HSM
Powerful Distance
Sigma’s APO 50-500mm F4.5-6.3 DG OS HSM is an advanced optical design of this 10x power high-performance zoom lens that covers the standard-to-super-telephoto range, now with the added advantage of Sigma’s own Optical Stabilization which offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. Sigma is the only one to offer OS for Sony and Pentax mount where the image is stabilized in the viewfinder if chosen.
For many photographers, having an “all-in-one” lens is an absolute dream. Especially for nature photographers, the idea of a lens suitable for landscape photography at the short end of the zoom range, while still having enough reach for wildlife is a great option. Add to that, the ability to close focus on small objects in the field such as flowers and it’s the perfect backpackers’ lens. Four SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire zoom range and Super Multi-Layer Coating reduces flare and ghosting and assures high image quality throughout the entire zoom range. With no need to change lenses, there is less chance of dirt or moisture entering the camera and fouling the imaging sensor.
The filter size of this lens is diameter 95mm and the lens is supplied with a step down ring enabling digital cameras with an APS-c size image sensor to use an diameter 86mm filter.
*It is not possible to use a Polarizing filter with the step down ring. If you attach a Polarizing filter, you may not be able to remove it from the lens again.
Dimensions (Diameter x Length): 104.4x219 mm/4.1x8.6 in
Weight: 1970g / 69.5oz.
About Sigma
Since 1961, and with the recent introduction of Sigma Global Vision, we have worked toward one single, simple goal: To hold ourselves to the highest standard of design & manufacturing of imaging products. Photography is all we do. And it’s all we’ve done. So you can rest assured that it’s something we know extensively and care deeply about. You have a vision. We’ve made it our mission.
- High powered ultra-telephoto zoom lens
- Optical stabilization compensates for camera shake
- Carrying case, lens hood, front & rear caps
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This Item Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Pentax Digital DSLR Camera | Recommendations | dummy | dummy | dummy | dummy | |
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Price | — | $1,599.99$1,599.99 | $999.00$999.00 | $1,704.85$1,704.85 | $1,096.95$1,096.95 | -24% $496.95$496.95 List: $649.95 |
Delivery | — | Get it Apr 1 - 4 | Get it Apr 1 - 4 | Get it Apr 10 - 24 | Get it as soon as Sunday, Mar 31 | — |
Customer Ratings | ||||||
Auto focus | — | 4.5 | — | 4.6 | — | 4.7 |
Picture quality | — | 4.4 | — | 4.7 | — | 5.0 |
Sold By | — | 42nd Street Photo | 42nd Street Photo | 2reasons | Amazon.com | Adorama |
lens type | Telephoto | Telephoto | Telephoto | Telephoto | Telephoto | Telephoto |
compatible mountings | Pentax KAF3 | Nikon F (FX) | Nikon F (FX) | Pentax KAF | Pentax KAF | Pentax KAF3 |
lens design | Zoom | Zoom | Zoom | Zoom | Prime | Prime |
focus type | Ring-type ultrasonic | Ring-type ultrasonic | Ring-type ultrasonic | Auto/Manual | Auto/Manual | Ultrasonic |
minimum focal length | 50 millimeters | 50 millimeters | 120 millimeters | — | — | 55 millimeters |
max focal length | 500 millimeters | 500 millimeters | 400 millimeters | — | — | 55 millimeters |
fixed focal length | 500 millimeters | 500 millimeters | 400 millimeters | 450 millimeters | 300 millimeters | 55 millimeters |
real angle of view | 46.8 degrees | — | — | 180 degrees | 5.4 degrees | 28.6 degrees |
model name | 738109 | 738306 | — | 21340 | 21760 | FBA 21790 |
Looking for specific info?
Product information
Product Dimensions | 8.62 x 4.09 x 4.09 inches |
---|---|
Item Weight | 4.34 pounds |
ASIN | B003A6H2JS |
Item model number | 738109 |
Customer Reviews |
3.9 out of 5 stars |
Best Sellers Rank | #218 in Digital Camera Accessory Kits #3,572 in SLR Camera Lenses |
Is Discontinued By Manufacturer | No |
Date First Available | February 1, 2010 |
Manufacturer | Sigma Corporation of America |
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Product Description
New Sigma APO 50-500mm F4.5-6.3 DG OS HSM. This is a 10x high zoom ratio ultra telephoto zoom lens incorporating Sigma's original Optical Stabilizer function. This lens covers a wide range of focal lengths from 50mm to 500mm ultra telephoto. The OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an image sensor shift anti-shake system. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement. Four SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. The Super Multi-Layer Coating reduces flare and ghost and ensures high image quality throughout the entire zoom range. This lens has a maximum magnification ratio of 1:3.1 (at the focal length of 200mm) making it ideal for close-up photography. This lens incorporates HSM (Hyper Sonic Motor), ensuring quiet and high speed AF as well as full-time manual focus capability. The addition of the optional 1.4x EX DG or 2x EX DG APO Tele Converters produce a 70-700mm F6.3-8 or a 100-1000mm F9-12.6 MF zoom lens respectively. This lens is equipped with a Petal-type hood to block out extraneous light. The filter size of this lens is 95mm and the lens is supplied with a step down ring enabling digital cameras with an APS-C size image sensor to use an 86mm filter. *It is not possible to use a Polarizing filter with the step down ring. If you attach a Polarizing filter, you may not be able to remove it from the lens again. *For Pentax and Sony mounts, it is not possible to use the AF and the built-in OS function of this lens when attaching it to film SLR cameras as well as Pentax K100D. *Nikon and Pentax mounts do not have an aperture ring. Some functions may not work depending on the camera model.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, value, sharpness and range of the camera lenses. For example, they mention it's an extremely capable lens, well worth the price and that it gets very crisp, clean shots. Some are satisfied with image stabilization, and range. That said, some complain about the weight. Opinions are mixed on autofocus, and contrast.
AI-generated from the text of customer reviews
Customers like the quality of the lens. They say it is an extremely capable lens that takes quality photos. They also say the shots come out fantastic, and are of extremely high quality. Customers also say that the lens is well built, and is a great lens for shooting kids sports. They mention that the images are quite sharp even at its widest aperture. Customers say it's a fantastic asset for wildlife photography.
"...I'm extremely satisfied with this lens. It does well the job for which it was purchased: close up shots of stuff that's far, far away or sometimes..." Read more
"...Image quality is not even close to Nikon.OS is good, when it works. Really drifts at long focal lengths...." Read more
"...--takes nice portraits with nice color, contrast and sharpness staight out of camera- although a little boost in photoshop really helps- not much is..." Read more
"...-500 I knew I'd be able to get whatever zoom I needed and the shots came out fantastic! (One of those is posted as well.)..." Read more
Customers like the value of the camera lens. They say it's a great long lens for the price, and well worth the extra weight and size. Some mention that the lens isn't cheap, but it'll be worth it for long shots and close ups alike.
"...issue, I will stay with my Canon 70-300mm, which is very sharp, inexpensive, light, and okay for wildlife...." Read more
"...other 3rd party lens which was a Tamron 17-50mm f2.8 (non-vc) great lens for the money...." Read more
"...I think it's well worth the money." Read more
"...Pros:1. Great price for the money.2. With the OS, able to get good photos hand held.Cons:..." Read more
Customers like the image stabilization of the lens. They mention it works well, has two optical stability settings, and is pretty stable. Some say the lens is sturdy and balances the camera well. Overall, most are satisfied with the performance of this lens.
"...-Fully usable at every focal length from 50-500.-Very effective Optical Stabilization (OS)--the lens can be easily handheld for shots at 1/30s...." Read more
"...--optical stabilization is really nice- works very well- and is especially appreciated on such a heavy lens..." Read more
"...The optical stabilization just works, and it works hard to give you great pix...." Read more
"...images are tack sharp 3) image stabilization works well..." Read more
Customers are satisfied with the sharpness of the lens. They mention that the handheld shots are sharp as a tack at 50 yards, and the full-zoom shots are crisp and clean. The lens produces portraits with nice color, contrast, and sharpness straight out of the camera. It is also surprising sharp wide open.
"...All of the shots taken with this lens are sharp and vivid. I'm extremely satisfied with this lens...." Read more
"...--takes nice portraits with nice color, contrast and sharpness staight out of camera- although a little boost in photoshop really helps- not much is..." Read more
"...have similar issue, I will stay with my Canon 70-300mm, which is very sharp, inexpensive, light, and okay for wildlife...." Read more
"...Both Lenses were adequately sharp, but I would have to agree with others who have commented, I really think that the 50-500 is the slightly sharper..." Read more
Customers are satisfied with the range of the lens. They mention that it has an amazing, impressive, and useful range. They also appreciate its versatility and usability at every focal length from 50 to 500mm.
"...Used with Canon 7D.Pros:-Fully usable at every focal length from 50-500...." Read more
"...hte lens despite the negatives- it's a very versatile lens with a massive range, especially on a crop sernsor camera like the canon 7d- the long end..." Read more
"...It's ridiculous zoom range actually works - on the right camera...." Read more
"...Range for this lens is impressive as previously indicated. Great for wildlife photography...." Read more
Customers are mixed about the autofocus of the lens. Some mention that it focuses fast, has near focusing capability, and works flawlessly for close-ups. However, others say that they lost all autofocus in January 2012, and the lens stopped working. They also complain that the lens has poor focusing issues and starts hunting in late afternoons.
"...Sharp as a tack.-Focuses accurately (if slowly). Every shot that the camera indicated was accurately focused was indeed...." Read more
"...The manual focus override works well on this lens. I can b difficult in low light/low contest if there's not enough contrast for the focusing system...." Read more
"...I found that the teleconverter doesn't allow me to use autofocus... that doesn't really concern me much, but in playing around I've realized that..." Read more
"...--fairly close focussing- good for close-up shots{Weaknesses:--Heavy when using all day handheld..." Read more
Customers are mixed about the contrast of the lens. Some mention that it has very good contrast, and is impressed by the low light contrast. However, others say that it lacks contrast and has chromatic aberration.
"...Teamed with my D7000, Color and contrast has also been very good...." Read more
"...It tends to have less contrast and crispness. It's not a bad lens. But the difference between the old discontinued lens and this one is huge...." Read more
"...The Focus Speed, Color, Contrast and most importantly sharpness - I would dare to say this is just about as sharp as my 70-200mm f2.8 VR1 - way..." Read more
"...would do a decent job, but the pictures, although sharp enough, lacked contrast...." Read more
Customers are dissatisfied with the weight of the camera lenses. They mention that it is quite heavy and can cause fatigue in the hand.
"...This is not a negative, it is a fact of this lens.-Heavy. Yeah. It gets old balancing a nearly 5lb lens...." Read more
"...Weaknesses:--Heavy when using all day handheld..." Read more
"...It's very big. Did I say that it's big? Oh, by the way, it's very heavy too!..." Read more
"...Maybe I am already used to the 70-200mm, this lens is not as heavy as I expected, maybe just a little heavier, and certainly handheldable...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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Used with Canon 7D.
Pros:
-Fully usable at every focal length from 50-500.
-Very effective Optical Stabilization (OS)--the lens can be easily handheld for shots at 1/30s. It kicks in very quickly and works extremely quietly. Not silent, but no one farther than a foot from you will hear it.
-Smooth action to extend focal length and to focus.
-Very close focusing: under 2 feet at the minimum.
-Works as a macro: magnification is 1:3.1 which is plenty for getting gorgeous closeups of flowers or eyes or whatever your fancy. Sharp as a tack.
-Focuses accurately (if slowly). Every shot that the camera indicated was accurately focused was indeed. The errors were either due to the user (me) or subject error (some critters move quickly).
My Canon 70-300 and 70-200 both needed constant fiddling with Micro Adjustment to get the focus right. I sold the Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras but am going to keep the Canon EF 70-200mm f/2.8L II IS USM Telephoto Zoom Lens for Canon SLR Cameras for the fact that it's still a 2.8 and built like a tank.
-Balanced and easily removed/attached tripod collar. When the camera (Canon 7D) is mounted the lens and camera can easily stand on this foot. No fear of tipping over.
-Camera/lens can stay up if rested vertically on the hood. Very stable due to the crazy diameter of the hood petals and their flatness. Makes it easy to park on a table or ground without worrying about scratching anything except the hood.
-Instant manual focus override. It works.
Neutrals:
-Slow to focus. Yes, at 500mm it's not a very fast focusing lens, but consider the amount of glass and the $1600 price tag. Sometimes it hunts and gets nothing, but if there's enough light it usually focuses pretty well. Using different focusing modes helps. It's not an action lens, for sure. Depending on the subject and the focusing mode I can get focus in under 1/10s. Light and focal length play a role. The important thing is that it's an obvious condition and can easily be accounted for. When it focuses it's always spot on so you can trust your results.
-6.3 is slow. Forget about using this lens when the light's gone. Or bring your own lights. But this is obvious. The lens has a max aperture of 6.3 at longer focal lengths. This is not a negative, it is a fact of this lens.
-Heavy. Yeah. It gets old balancing a nearly 5lb lens. Bring a monopod if you'll be shooting all day. A tripod is good for this lens, but given the weight and focal length you'd need a very, very sturdy one (ideally with a Gimbal head) or you'll just get vibration since it's supported at only one point.
Negatives:
-Weather Sealing. I know it's not in the price range of an L series lens, but most people spending $1600 would spend a few bucks more to have the lens sealed up. Or at least with a rubber boot between the camera and the lens. I'm curious how much extra cost and weight some weather sealing would add to this lens. Given that it's the ONLY 50-500 lens I'd be willing to pay significantly more for weather sealing.
I"m going to add some sample shots to help illustrate the quality of the lens and what it's capable of.
Reviewed in the United States on February 2, 2011
Used with Canon 7D.
Pros:
-Fully usable at every focal length from 50-500.
-Very effective Optical Stabilization (OS)--the lens can be easily handheld for shots at 1/30s. It kicks in very quickly and works extremely quietly. Not silent, but no one farther than a foot from you will hear it.
-Smooth action to extend focal length and to focus.
-Very close focusing: under 2 feet at the minimum.
-Works as a macro: magnification is 1:3.1 which is plenty for getting gorgeous closeups of flowers or eyes or whatever your fancy. Sharp as a tack.
-Focuses accurately (if slowly). Every shot that the camera indicated was accurately focused was indeed. The errors were either due to the user (me) or subject error (some critters move quickly).
My Canon 70-300 and 70-200 both needed constant fiddling with Micro Adjustment to get the focus right. I sold the [[ASIN:B0007Y794O Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras]] but am going to keep the [[ASIN:B0033PRWSW Canon EF 70-200mm f/2.8L II IS USM Telephoto Zoom Lens for Canon SLR Cameras]] for the fact that it's still a 2.8 and built like a tank.
-Balanced and easily removed/attached tripod collar. When the camera (Canon 7D) is mounted the lens and camera can easily stand on this foot. No fear of tipping over.
-Camera/lens can stay up if rested vertically on the hood. Very stable due to the crazy diameter of the hood petals and their flatness. Makes it easy to park on a table or ground without worrying about scratching anything except the hood.
-Instant manual focus override. It works.
Neutrals:
-Slow to focus. Yes, at 500mm it's not a very fast focusing lens, but consider the amount of glass and the $1600 price tag. Sometimes it hunts and gets nothing, but if there's enough light it usually focuses pretty well. Using different focusing modes helps. It's not an action lens, for sure. Depending on the subject and the focusing mode I can get focus in under 1/10s. Light and focal length play a role. The important thing is that it's an obvious condition and can easily be accounted for. When it focuses it's always spot on so you can trust your results.
-6.3 is slow. Forget about using this lens when the light's gone. Or bring your own lights. But this is obvious. The lens has a max aperture of 6.3 at longer focal lengths. This is not a negative, it is a fact of this lens.
-Heavy. Yeah. It gets old balancing a nearly 5lb lens. Bring a monopod if you'll be shooting all day. A tripod is good for this lens, but given the weight and focal length you'd need a very, very sturdy one (ideally with a Gimbal head) or you'll just get vibration since it's supported at only one point.
Negatives:
-Weather Sealing. I know it's not in the price range of an L series lens, but most people spending $1600 would spend a few bucks more to have the lens sealed up. Or at least with a rubber boot between the camera and the lens. I'm curious how much extra cost and weight some weather sealing would add to this lens. Given that it's the ONLY 50-500 lens I'd be willing to pay significantly more for weather sealing.
I"m going to add some sample shots to help illustrate the quality of the lens and what it's capable of.
I shoot almost every day, just for the joy of doing it. My primary interest being photography, I'm also a camera collector. Mostly of things I would have liked to have owned in their day. Leica screw mounts are my favorites from early to late. I have an extraordinary IIIg, in the first 25 ever made that from all we can tell was never actually used, i.e. a showroom piece. It needed a CLA.
To stipulate, I was a working pro for 11 years, doing news, advertising illustration and anything else I could sell. I've owned and worked with sub 35mm to 8x10. I loved the work, the reasons I left were complex.Before that I worked as an apprentice for four years in an old school portrait house. But I've worked with and own all manner of lenses. In my earliest days we still worked with Big Berthas, 5x7 Graflex SLRS with VERY Long lenses or the Baby Berthas which were 4x5 Graflex SLRs with much the same lenses mounted. i.e. there was no specific lens. But imagine a Graflex, hood and all, with 2,000 or 3,000 mm lens. My preferred cameras of the period were Nikon Fs and compatible lenses. For the most part I was Nikon-Nikon. Then it was Olympus OMs - I was no longer in the trade, but they suited me.
Now it's Canon, no dig on Nikon or Olympus, which won me over after my working Nikons were stolen.
The Bigma is a great lens. There is no directly comparable L lens and just as well, It would be a very tough call if faced with that call. I might have scraped around to buy one. But price is a factor in any even. But quality matters to me. I've owned a first rate Canon D0 70-300, a great lens, which costs a fair chunk. It was out of action for a few weeks and I bought a Sigma 70-300 substitute until the damage could be repaired. The Sigma costs a fraction of the L and it's performance was pretty damned good and it had some nice features, e.g. Macro focusing, that the Canon didn't have.
Now they come with this monster. My primary camera now is a Canon 5D Mark II and the full frame is brutal on lenses. I sometimes see reviews from users who cite vignetting on cropped sensor cameras from a lens that in my experience doesn't vignette much on the full frame at full frame wide open, but most primes vignette a bit wide open. This Sigma is a significantly different lens than the previous Sigma lens of the same zoom range, i.e. 50-500.
For one thing the filter size has increased substantially which seems to reflect not random desire, but n overall improvement of the optics. It might seem that going 50-500 is a real stretch given the weight of this monster, 4.5 pounds, which should be double strapped or bagged for carry with the 5D2. It's not. There's nothing more frustrating than have a prime 500mm mounted and suddenly you need a quick shot of something close, not wide, but normal; the Bigma covers it.
This is not a lens you want to wear routinely for 10x zoom, as we sometimes do with the consumer-prosumer cameras. That weight will wear on you. I'm now pushing 70, severely arthritic and easily fatigued. I have to balance not just how I carry, but what I carry. Yet, I so love full frame. I finally stopped carrying film cameras on travel, both from added weight and the vastly improved quality of digital. For me in most circumstances it's superior.
Some have mentioned monopods as a minimum requirement. There are alternatives, i.e. similar to movie mounts. I don't disagree with the monopod and use mine carbon fiber lightweight when I can. This is where the f 6.3 maximum aperture comes into play at longer focal lengths. At nominal 500 mm, Bob Atkins says it's very close to an honest 500mm and while that changes as you move to shorter focusing distances so the focal length is less.
The combination of very long focal length, weight, etc., make controlling shake or camera movement critical. This is one of my highest areas of praise. Working from a sitting position or similar, using my chest to brace elbows, I've managed crisp pictures at 1/5th or less wide open. Not what I'd recommend trying for a money shot, but it wasn't a fluke. I've done a lot of sharp images at speeds of under 1/30th of a second. I was always good at long hand=helds, but age doesn't help as a rule, so I'm reasonably convinced that it's a good system.
I have not done exhaustive tests of the lengths at different focal lens and f/stops. I will say this. Canon specs call for a lens that is faster than f/5.6 to make its autofocusing work. been surprised the auto-focus works as well as it does, which is 90 percent of the time which surprises me given that it works even at f 6.3 most of the time including times when i have trouble seeing what it's focusing on.
I was born and raised a manual focus man who appreciates the auto-focus systems. But I try not to pretend it answers for everything. People who claim one camera system or another is superior on focusing miss something. The further up the ladder you move on pro or semi-pro cameras, the more you're supposed to know. As the "Digital Journalist" said, Auto-Focus is a wonderful crutch, but every user needs to know how to focus the thing.
The manual focus override works well on this lens. I can b difficult in low light/low contest if there's not enough contrast for the focusing system. I can only that no one should plan a money shot in a place they haven't checked out and considered why interrupts focusing sensors. With this lens, when you need selective focus, you really want to ride heard on focus.
One other note, because there are some very good posts on this lens. Having working with a top quality 500mm prime, I don't think this lens will produced the same quality image as an equivalent prime. FWIW, None of my expensive Canon L's really ensure up to the primes at the same focal length. Don't mistake me. The 24-70 and 24-105 and the rest are great lenses. Just that s a rule, a prime is different to the discerning eye.
Butto finish this off, I'm very impressed by the low light contrast of the lens. I've shot images of Dandelions and flowers of ornamental grass, wide open,where this lens makes a higher contrast image (int he right way) that allows you to see just how finely focused and high definition this lens is capable of.
At thispoint, for this focal length soon, there's not a better one on the market with this much verstatility. If the relatively slow F/Stop bothers you, remember this, for from 4.5 to F/2.8 would probably cos at least twice this weight.
If you're a birder, especially if you're using a high MP 1.6 crop of real quality, e.g. the 7D, this is a really important lens. Especially if you can sit on your deck or porch or whatever. You shouldn't plan on using this lens with a non-Sigma extender. That's not unusual. I have some lens that work fine with non-oem extenders. But there are canon lenses that really don't do well with non-OEM brands. Also, if you're lucky and have enough light, it will probably auto-focus with the 1.4x, but almost certainly not the 2.0x.
Lastly, there are two Sigma 50-500mm lenses. The old one doesn't measure up to the new lens. It tends to have less contrast and crispness. It's not a bad lens. But the difference between the old discontinued lens and this one is huge. I've used the old one and wouldn't buy it. This one, I bought and I own. I could have sent it back. I did send back a prime lens of another make in this area of focal length.
Took about 50 photos before it failed completely. Started out with an occasional mirror lock up. A recycle of the camera on-off switch would remedy the problem, for a while. Towards the end I would get mirror lock up and then the status LED on top of the camera would read a flashing Error. I removed the lens and saw the mirror was stuck half open. Even recycling the camera on-off switch, removing and replacing the battery and changing to a Nikon lens wouldn't fix it. I thought it had killed my Camera. Too scary!
Auto focus can't compare to Nikon's.
Image quality is not even close to Nikon.
OS is good, when it works. Really drifts at long focal lengths.
Is difficult to install on the camera compared to my Nikon lenses.
Return to sender, I want my money back.
If they can work these bugs out, I might consider giving it a second try.
Top reviews from other countries
pesa mucho. monopie es casi imprescindible
Actualización:
A 4 meses de usar este lente, puedo decir que es un lente versatil, se trata de un 50-500mm, y en ése rango de distancia focal, pasa desde el lente estandar, el retrato, el telefoto y el ultra telefoto. Es un objetivo pesado, sus casi dos kilos te obligan a ponerlo en un tripode para usarlo con mayor libertad, aunque el estabilizador óptico (OS) es muy útil y te permite tomar a mano alzada muchas fotografías que sin el simplemente no se podría. Tiene un autofoco rápido y silencioso. Este modelo viene equipado para poderse adaptar a un teleconvertidor 1.2x o 2x, que lo convierte en hasta un 100-1000mm, y aunque el teleconvertidor te hará perder algo de luz y resolución (en ojos de expertos) así como el autofoco, las imágenes que captas siguen teniendo buena resolución. No hay duda que se trata de una muy buena creación de SIGMA, un verdadero multiusos.