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|Filter thread||Rear: 46 mm|
|Weight||6.82 lb (3.09 kg)|
|Dimensions (dxl)||Approx. 4.8 x 13.8" (12.19 x 35.05 cm)|
|Minimum focus distance||13.12' (4.00 m)|
|Focal length||500 mm|
|Camera mount type||Pentax K|
|Format compatibility||35mm Film / Full-Frame Digital Sensor
Pentax Digital (APS-C)
|Angle of view||5°|
|Maximum reproduction ratio||1:7.7|
So has Sigma been over-ambitious? Yes, a little. This would be a much better performer if it were a 50-400mm zoom, especially given that it is compatible with Sigma's 1.4x and 2.0x tele-converters for when extra reach is needed.
A very versatile lens
Poor performance at 500mm
Overall this lens performs extremely well and produces some excellent shots. In the specialist areas where it would be used, such as Wildlife and sports, it proves easy to handle and, just as importantly, carry.
Good build and finish, Fast quiet autofocus, Very usable wide open, Manageable for its type, Close focus distance is good.
Lacks a little contrast, Hood a little short for the focal length.
Having used the Canon Ef 500mm f/4.5L USM for many years, I decided it was time for an upgrade, as this lens had certainly seen better days. My first inclination was to go for Canon's latest incarnation, the EF 500mm f/4L IS 11 USM, but the price was way out of my current budget range, having just...
Good product, good price.
Bought for my wife to use on my spare 6D body as a point and shoot camera for wildlife, and she is getting some amazing results! I’ll teach her all about ISO and F. stops and all that goguldigoop later! but in full auto, hand held its unreal!
I have owned the sony version of this lens for about 9 months its fantastic. I use it with the sony a99 and produce wonderful detailed photos of wildlife. I have frirends who own the canon 500 f4 s and to be fair my Photos are every bit as good...
Excellent lens delivered well wrapped on on time. Couldn't be happier
good lens - however, I think the original I bought 9 years ago was sharper... in future, i'll try not to drop lenses and break them....
Nice, best value and great quality and speed
Fantastische!!!! Great build quality, little heavy but what do you expect from such a powerful piece of kit. Chose this over Canon alternatives for my EOS - its a great contender in quality and great value for money over the competition and obvious manufacturer. Would recommend!!!
what a lens did every thing that I could wish for.
Changed from my previous trusty Sigma 50-500, to the slightly heftier 500 EX DG IF APO. Even at these weights, there is a strengthening curve, where you can shoot with it for up to 15 seconds before starting to shake, to extending it to a minute.