Sigma 70-300mm f/4-5.6 DG Macro Lens for Pentax AF

Sigma 70-300mm f/4-5.6 DG Macro Lens for Pentax AF

Sigma 70-300mm f/4-5.6 DG Macro Lens for Pentax AF

B&H # SI703004PAF MFR # 509109
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Product Highlights

  • For Pentax Cameras
  • Zoom Telephoto
  • Maximum Magnification of 1:2
  • 9-Blade Diaphragm
  • Special Low Dispersion Glass Elements
  • Lightweight (18.7 oz)
  • Lens Hood Included
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Sigma 70-300mm f/4.0-5.6 overview

  • 1Description

The Sigma 70-300mm 4-5.6 DG Macro lens is the compact and economical choice for a telephoto zoom lens. Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300mm focal length. It is the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range.

The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor.

Macro photography with a 1:2 maximum close-up magnification at the 300mm focal length
Switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2
SLD (Special Low Dispersion) glass element in this lens for excellent correction of chromatic aberration
UPC: 085126509453
In the Box
Sigma 70-300mm f/4-5.6 DG Macro Lens for Pentax AF
  • Front & Rear Lens Caps
  • Hood
  • Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects.
  • Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects.
  • Table of Contents
    • 1Description

    Sigma 70-300mm f/4.0-5.6 specs

    Focal Length 70 - 300mm
    Aperture Maximum: f/4 - 5.6
    Minimum: f/22 - 32
    Camera Mount Type Pentax K
    Format Compatibility 35mm Film / Full-Frame Digital Sensor
    Pentax Digital (APS-C)
    Angle of View 34.3° - 8.2°
    Minimum Focus Distance 4.92' / 149.86 cm
    Magnification 1 - 2x
    Maximum Reproduction Ratio 1:2
    Optical Design 14 Elements in 10 Groups
    Diaphragm Blades 9
    Image Stabilization No
    Autofocus Yes
    Tripod Collar No
    Filter Thread 58 mm
    Dimensions (DxL) 3.02 x 4.70" / 7.66 x 11.95 cm
    Weight 18.7 oz / 530 g
    Packaging Info
    Package Weight 1.7 lb
    Box Dimensions (LxWxH) 6.8 x 4.1 x 4.1"

    Sigma 70-300mm f/4.0-5.6 reviews

    70-300mm f/4-5.6 DG Macro Lens for Pentax AF is rated 4.5 out of 5 by 26.
    Rated 5 out of 5 by from I would buy this lens again I bought this to get the best of both worlds, telephoto and macro. I haven't been disappointed! Macro is as easy to use as pushing a switch. It must be in the 200-300 mm range for this and works best on manual focus. In macro setting, Auto focus it hunts too much to really zoom in on ones subject, but It takes really great macros. Used it telephoto at a rodeo event and got really good close up shots of the action. Auto focus works great, though when shooting birds in trees, might want to use manual focus if branches or twigs are in front of bird as they will be clear, and bird in background will be blurry.I have even taken indoor shots of pets and it works good, but have to have some distance between you and the subject. There is really nothing about it I don't like. Its light enough to hand hold even at the 300 mm length, although for night shots I would recommend a tripod. Comparable to more expensive lens making it a good buy for beginners.
    Date published: 2013-10-01
    Rated 4 out of 5 by from Not bad, for the money. Cannot complain too much about this lens. For what you pay, it definitely performs and then some. Still looking for that "sweet spot" in the lens, but it manages to produce good images throughout the focal range. Macro function is a bit odd to operate, but it becomes normal with a little practice. Solid construction, it is not a "cheap" lens. Yes, you could get better glass and better images, but not at this price. If you need a "substitute" lens while you save up for the costlier ones, this lens will fill that gap nicely. Really, you have to be a jerk to nitpick this lens. You get far more than what you pay for.
    Date published: 2018-04-22
    Rated 3 out of 5 by from Good lens but bright This lens seems to work well but most photos are overexposed with the Pentax K110D. Set the expose .5 to 1 stop darker. Focus is inconsistent but with multishot setting, 1 of 3 appears in focus. Not all features of the K110D work with the lens. When using anything other than auto or program mode, attempting to reach the F Stop is difficult due to the design of the Pentax lens cover. But, overall, not a bad lens. But, if you need all features of the camera stay with the 50 - 200 Pentax lens. I have both and will probably not use this lens very often.
    Date published: 2007-01-31
    Rated 5 out of 5 by from Yikes! Worth every cent! I went to B&H to get a wide angle zoom (and I did, reviewed elsewhere here). While I was there, I asked Scott about a 2x teleconverter for the Pentax K series. But it seems as if Pentax only makes a 1.4x, in which case, why bother?Instead, he said, why not just get a decent low-cost tele-zoom?, and then pulled this thing from the rack. BOOM! It's the perfect lens for my $150 investment. Yep, there are faster lenses, sharper lenses, etc... but not for $150. I bought it.Walking over the Brooklyn Bridge later that afternoon, I gave this lens a Hard Shakedown. Here are my impressions:I have always liked Sigma glass. Back when I shot Pro, I had many Sigma lenses, and every last one of them was tack-sharp, built like a tank, and NEVER-EVER failed me.This lens feels a little-less robust, but not by much. I am no longer in combat conditions when shooting, so if I need to treat it with a little more TLC, no problem. To date, it's been knocked-around moderately, with no ill-effect. The zoom creeps a little bit when walking... know your tools, and deal with it.It's LIGHT, which is a good thing. Because of that, I can carry my entire outfit with ease - I clocked ten miles in NYC that day (Dumbo to Central Park) carrying EVERYTHING, and had no isues.It's SHARP. Waaaaay sharper than I have any right to expect from a $150 tele-zoom. Off the Brooklyn, it sucked-in the Statue of Liberty with aplomb and ease, and rendered images that were just fine for my purposes, despite being handheld in the wind that was blowing. Again, I have used sharper lenses, but nowhere near this price point - I'm talking 10X the price.My only con (lower-case - this is not a CON, just something to be aware of with a $150 lens) - the contrast is just a tad low. On a sunny day, you won't notice. On a cloudy day, bump the contrast just a little, either in the camera or via Photoshop. (In my Pentax K5, I built a a custom exposure mode for it - took me 3 minutes to do. In Photoshop, I built an Action just in case I forgot to set the camera... that took me 37 seconds, and not corrects any Needy photo with a mouse-click.)So, all-told, I'm very happy to have this little lens in my kit. It increases the scope of my photography vastly. I don't shoot sports aside from some drag-racing (which is where I miss my old $9,000 fast glass!), but for what I'm doing now, I love this thing. And a buck-fifty makes it a STEAL.
    Date published: 2016-03-13
    Rated 5 out of 5 by from The best telephoto considering the price I have a K50, since this Telephoto is a full frame the 70-300 became 105-450. Also I have a teleconverter x-2 from may old Pentax film also a full frame that is auto.This teleconverter bring the soom to 900 mm. The picture is not perfect but stil can be seen and focus has to be manual. But the Sigma by itself is great. The pictures are very net. Sometimes the autofocus hesitate in the 200-300 range but other than this is great. I will give five stars considering the price.
    Date published: 2017-03-15
    Rated 4 out of 5 by from A decent lens This is a decent lens. Dramatically better in every way than the Tamron equivalent. Chromatic Aberration is there, but minimal and easily correctable in Lightroom. The same cannot be said for the Tamron. The lens has a solid feel to it, which I quite like. Some would say heavy, but it feels pretty comfortable to me. It's very sharp for a lens at this price point. I bought it as a backup as I managed to break a Pentax 55 - 300 on the sidelines last year and had to finish the game with a totally unsuitable lens. Not gonna let that happen again. My primary lens for this kind of shooting is now the new HD Pentax-DA 55 - 300mm F4.5-6.3 ED PLM WR RE which is significantly more expensive, but also considerably better aside from being slightly slower. The Sigma focuses quickly without a lot of hunting, but if the lens has a negative it's in the autofocus. As I said it focuses quickly, but it stops abruptly with enough of a kick to make it difficult to keep your framing when using it handheld. Was quite a challenge when shooting small birds a couple of days ago as the kick frequently pulled them completely out of frame. Took a bit of getting used to, but I did manage to adjust. All in all, a good buy at that price. Do not, not, not buy the Tamron instead. That lens is awful and is going back.
    Date published: 2017-06-26
    Rated 5 out of 5 by from Beautiful lens! Congrats Sigma! Amazing lens and outstanding value! Impressive quality and response time for a telephoto zoom that costs less than $150. I use it with my K-1 and it's been a great combination.
    Date published: 2016-12-06
    Rated 4 out of 5 by from Ugly bokeh, but overall nice lens I currently use this lens as my normal wildlife/naturetelephoto lens on my *ist DL. I usually get very goodresults with it until some small branches are in theforeground. Bokeh quality isn't always horrible, butsometimes it surprises me with horrible bokeh. Very rarelyhave I seen any chromatic aberrations, which is always aplus. Sometimes a green halo appears when scenes get verycontrasty. Autofocus is mediocre...when shooting throughtrees it searches a lot, as there are so many branches tofocus on. Even not shooting into trees, it tends to searchsome. It's also really light, so it doesn't even need atripod mount. Easy to carry on long trips. Great value,too! I got mine used for $120.If you currently have only a kit (18-55) lens and you wantto extend your capabilities with this lens, go for it. It'll most likely be worth it. This is the first lens Ibought after the 18-55. I have had this lens for about ayear and a half now, and I've grown out of it. It was mybest friend for about half a year, then it was just anotherlens, and now that I've learned so much and expanded mycapabilities, I feel like I've grown out of it. After all,at 300mm, it is only f/5.6, and its quality is somewhatsharp. It's reasonably sharp. Not like some of my other50mm's. But don't get me wrong, for $100-$140, it'scompletely worth it if you're just expanding your range.On the other hand, if you are only intending on using thislens for wildlife or just for the long reach, get a fixed300mm (or higher!). You will find that f/stops will getfaster and quality will get better. Even old Pentax 300/4screw mount lenses or old k-mount lenses (before autofocus)are likely going to bet better image quality than this. Butit is also likely that you'll pay more for a fixed 300mm.The verdict?If you're on a budget looking to expand your reach with anew telephoto lens and superior quality isn't a major factoryet, this lens is for you. Expertise: Overly enthusiastic amateur Problems Encountered: AF hunts a little bit sometimesLike previous reviews say, sometimes the exposure is wayoff. Setting exposure comp. up or down a little bit helps,but I find that, shooting outdoors, using Manual mode isbest and most accurate. Previous Equivalent Item Owned: Pentax 300/4, Soligor 75-260/4.5-5.6 Items I Recommend: UV filter
    Date published: 2008-01-12
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    Sigma 70-300mm f/4.0-5.6 Q&A

    Sigma 70-300mm f/4.0-5.6 accessories

    Designed for use with:

    • Pentax K-1
    • Pentax K-1 II
    • Pentax K-3 II
    • Pentax K-70
    • Pentax K-S2
    • Pentax KP
    See any errors on this page? Let us know.