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The Kenko Pro 300 DGX 2.0x is a extender lens for FF and APS-C, manufactured from 2010 to 2016 (discontinued). The average price, when it has been added to the JuzaPhoto database, is 175 €;
29 users have given it an average vote of 9.2 out of 10.
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Reviews
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The following opinions have been automatically translated with Google Translate.
Cons:Huge, at least on my specimen, drop in sharpness, MAF difficult at extreme focal lengths.
Opinion:I don't know, but I bought it to pair it, when needed, to the 80-200 Tokina AF AT-x pro. Precisely on this there is a huge decrease in sharpness and increase in aberrations, indeed, it seems that it does not really focus, despite the camera indicating the occurred AF with halos everywhere on the frame. On fixed lenses, and not 2.8 zoom all this is non-existent. I repeat as above at least on my specimen, I think I took a failed version or with problems, maybe not compatible with the Tokina.
Pros:Compatibility on Canon Eos 5D MK III and 6D MK II bodies with all the optics of my kit, imperceptible loss of sharpness, light and compact.
Cons:I didn't find any
Opinion:Looking for the Pro 300 1.4 DGX on the used market, for the pros illustrated by multiple reviewers, I found a seller who was selling in bulk with the Pro 300 DGX 1.4x also the Pro 300 2x DGX of which I was a little skeptical. Given the favorable price I took them in pairs and I did not regret it because I have to say that for both are worth the same pros and to date no cons, with the optics with which I use them, especially Canon 100mm f2.8 Macro USM and Canon 70-200 f4 L IS USM. Concerned about possible incompatibilities with the 6D MK II complained of by other reviewers, I have to say that with mine he did not manifest any problems. Over-recommended
Pros:Compactness, lightness, price, value for money, AF and IS maintenance even with > f.4.0
Cons:I haven't found any so far
Opinion:I had the Canon Extender 2x II and, mounted with the 70-200 L f.4 IS USM, did not keep the AF, but only stabilization (as indicated by the House), and not only that: it was bulky and heavyer and only enthipped to this goal, among other Canon EF that I have in my kit. I decided to take this multiplier, bought used in excellent conditions in the physical store and with a guarantee of one year for 100 euros and immediately surprised me: lightness and footprint to a minimum, quality, combined with the 70-200 above, comparable to the original Canon II, and above all maintenance of the AF and stabilization. To my great satisfaction I also noted that it also engages all the other objectives with EF grafting while maintaining all the automatisms with these too. Obviously the Canon Extender 2x II I resold it to a guy who had the 300mm. f. 2.8 and the 70-200 f.2.8 with which it works excellently.
Pros:Value for money, comfort in travel/excursions, Robustness
Cons:Normal sharpness drop but certainly not so marked
Opinion:I have had it for years and those who buy it know what to expect as pros and cons. I believe that the people are in favour of choice. I also use it with the 70/200 F4 and outdoors it does not miss a beat despite the loss of stop and, honestly, I did not experience any particular problems of sharpness or anything else. I also used it with the 150/600 G2 with easel to photograph the moon and I cannot complain, despite the actual decrease in sharpness found; I'm going to post a picture soon in order to let the picture itself speak. If you travel a lot, I recommend it for sure!
Pros:value for money, doubling of focal point, construction
Cons:Sharpening, autofocus not always ready, not tropicalized...
Opinion:Now I use it frequently, especially in this period when I am approaching birds having a hawthorn that only reaches 200mm. Lights and shadows, the lights I would say that are greater: it is well built and reliable, the doubling of focal is very useful and in photos with good/excellent light the shots that you get are satisfactory; the shadows are partly physiological and that is the closing of at least one stop and more that means starting at least from a lens of f 2.8 if you photograph in discreet light, the problems come when the light begins to run out. If the light is inadequate everything gets complicated both for the autofocus that struggles to take the subject and the general yield that tends to dull everything a bit. The real shadow however is in general the loss of sharpness on the whole photo, which is attenuated by closing the diaphragm but only if you can (i.e. if we are in excellent light). Summing up I can say that I am satisfied if we consider that I paid 150 euros and that in some cases it becomes indispensable, that if the light there is in abundance the shots suffer very little from the drop in sharpness. Until I can afford a beautiful long native focal, I keep it tight!
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