Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Pentax Digital DSLR Camera Review| Categories | Telephoto |
| Product Code | B003A6H2JS |
| Product Rating |  |
| Price | $1,509.00 |
| Where To Buy | See More Details |
| Customer Review | See More Reviews |
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Product Details
- Brand: Sigma
- Model: 50-500mm f/4.5-6.3 Pentax
- Dimensions: 4.10" h x
4.10" w x
8.60" l,
4.34 pounds
Features
- Construction 16 Groups /22 Elements Angle of view 46.8° - 5° F stop range 22 Closest Focusing Distan
- Construction 16 Groups /22 Elements Angle of view 46.8° - 5° F stop range 22 Closest Focusing Distan
Product Description
The Sigma APO 50-500mm F4.5-6.3 DG OS HSM 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. It 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. Specification (For Sigma mount) Lens Construction: 22 Elements in 16 Groups Angle of View: 46.8-5.0 degrees Number of blades: 9pcs (Rounded diaphragm) Minimum Aperture (W): F22 Minimum Focusing Distance: 19.7-70.9 in./ 50-180cm Maximum: 1:3.1 (f=200mm) Filter Size Diameter: 95mm Lens Hood: Petal-type hood (LH1030-01) supplied Dimensions: Diameter4.1in.?8.6in./104.4mm?Length 219mm Weight 69.5oz./1,970g
Customer Reviews
Most helpful customer reviews
115 of 120 people found the following review helpful.
By R. J. Hoover
Just received the lens. Using with a Cannon EOS XTi.Pros- Sturdy feel to the lens- Impressive focal length range.- Good picture quality throughout the range (speaking as a non-pro)- OS pretty good. Taking acceptable quality hand-held shots at full extension in bright sun.Cons- Autofocus not working out-of-the-box. Of note that this lens was NOT in the serial number range specified by SIGMA's customer alert.- Very poor response time on queries to SIGMA's tech service.- Some (minor) vignetting noticable at longer focal lengths.- Does not work with my TAMRON teleconverter even though this TC does function with my Cannon lens.- HeavyReturning the lense for replacement through AMAZON due to the autofocus issue. Will see how well the next one does.UPDATE:Received replacement lense from AMAZON with working autofocus. Took it out today for extensive testing and am well pleased so far. Focal range is impressive and am getting good shots throughout the range. OS function gives reasonable good shots even when hand held at 500MM. Normally use with a monopod however.Tempted to upgrade my rating from 2 to 4 stars however will leave it at 3 for time being. Issues:- Continued poor SIGMA customer service. My email requesting Tech assistance after first lens' failure is now 5 days old with no response from SIGMA. In same period I returned original lens to AMAZON, got a replacement and tested it (kudos to AMAZON Customer Service). Had similar poor response experience with SIGMA when I was originally researching the lens.- Some residual caution about reliability of the autofocus function. Seems to be a fairly common issue with this lense. I'll withhold judgement until I have a bit more field experience with the lens.NEW UPDATE:Took lens overseas for several weeks of heavy-duty use. Still pleased. A few (minor) comments:- Autofocus still working however does tend to have difficulty in finding the perfect focus point for "busy" backgrounds. Tend to use manual focusing a bit more than I would like.- Range for this lens is impressive as previously indicated. Great for wildlife photography. The 50MM low end is however not quite good enough for the wide/scenic shots. Find myself carrying a good point-and-shoot camera to get those scenic vistas as too much trouble to keep changing lenses.- Never did get a response from SIGMA tech service. Academic now - however can't help wondering if they really exist. Not looking forward to dealing with SIGMA if the lens ever needs maintenance.YET ANOTHER UPDATECurrently 1.5 years after purchase. Autofocus not functioning. 12 days turnaround time for repairs through SIGMA New York -- with $44 to FEDEX for shipping/boxing. Better impressed with SIGMA customer service than I have been in the past.
73 of 76 people found the following review helpful.
By Eric Zhang
I've had this lens for a few days and am very pleased with it. Given the fact that it's covering such a wide range, I didn't expect it to have very high IQ, yet I am pleasantly surprised. I measured it against my super sharp Nikon 70-200mm f/2.8 VRII with TC-17, both @ 340mm f/6.3 and f/8, and the IQ is about the same on a D300s, even though on a full frame D3s, the 70-200mm + TC-17 is slightly sharper. This is quite remarkable, because 70-200 f/2.8 VRII is one of the best lenses Nikon has ever made, and it can produce better pictures at 100mm than the highly regarded Tokina 100mm macro lens I own, and even when shooting macros, the 70-200 + TC-17 + Canon 500D combo is comparable to the Tokina 100mm.Image color is great, with vivid contrast. I had a few bird shots at fully extended 500mm and they turned out to be great pictures. CA is minimum too, only slightly visible when fully zoomed in, and no worse than my 70-200+1.7 combo. Focus is fast, even though it has always been a challenge for me when shooting sports and moving animals. Build is very solid. It's about the same length as the Nikon 70-200mm VRII without the hood, and about 20% wider. 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. The OS certainly helps, and I can shoot handheld 500mm at 1/30sec with good image quality. The OS can be turned to 'off', '1', or '2'. When not shooting at high shutter speed, I used '1' only and I suppose '2' is for shooting from moving car on a bumpy road. I haven't tried manual focus yet. Zoom in and out is a little tight, and that might be the only negative I can find with this lens so far. It's not hard to get used to it, so not a big deal, and you can be sure that lens creeping will never be a problem, even though it still comes with a zoom lock.Overall, I am extremely happy with this purchase. With an unmatched covering range of 50 to 500mm, it is a great lens for shooting kids sports, which is the main reason I bought this lens. With the high IQ, it's also a great lens for shooting birds. I think it's well worth the money.
41 of 45 people found the following review helpful.
By Campby
Rented this lens for my son and nikon 500mm f4 for myself for yellowstone photo vacation. Honestly the 50-500 was considerably more useful. OS seemed to be better or at least equal to nikon vr, only slightly less sharp, contrast and colors are also very good. Size difference is huge and he was able to get shots before i could manuver the huge nikon lens. Autofocus was snappy and acurate, he was able to get spot on pictures of golden eagles at 500mm in flight free hand held. I grabbed his camera to jump into a riverbottom and get pictures of a bull moose, that's when i realized just how good this lens seems to be. 6.3 is a little dim but with ISO performance getting better less of an issue. I've always had issues with non-nikon lenses hunting but didn't experience it or at least it was small enough it didn't leave an impression. Distortion seems aceptable and after i review the photos a bit i will likely purchase one.
On sale now at cheap price, promo discounts and easy shipping. I am really happy with their features and recommend it to someone searching for a top quality item with the newest specifications at an low. You can read testimony from customers to find out more through their experience. Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Pentax Digital DSLR Camera has worked wonders for me and I wish it will do wonders on you too. So why waste much more time? Enjoy yourself, you understand where to buy the best ones.
Most of the customer reviews speak that the Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Pentax Digital DSLR Camera are splendid luggage. Also, It Is a pretty well product for the price. It’s great for colony on a tight budget. We’ve found pros and cons on this type of product. But overall, It’s a supreme product and we are well recommend it! When you however want to know more details on this product, so read the reports of those who have already used it.
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