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YONGNUO YN42.5mm F1.7M II Lens for Micro Four Thirds Mount
With a focal length of 42.5 millimeters and a bright, maximum aperture of f/1.7 for beautiful bokeh, this versatile lens is a great choice for portraits and street photography, as well as low light scenes or during concerts.
Lens for micro four thirds
Micro Four Thirds is a versatile and highly mobile system that meets all kinds of photographers' needs and chases an optimal balance of high image quality, compactness and lightweight in cameras with interchangeable lenses.
F1.7 large aperture
Coloring in the out-of-focus area has been meticulously eliminated, and the edges of bokeh are smoothened. In addition, by realizing gradual alteration of the degree of bokeh from the focal plane, subjects can be more effectively emphasized with a naturally blurred background.
STM stepping motor
Silent stepping motor realizes quiet AF operation
Glass Optical Lens, Multilayer Coating
The whole series of this product adopts glass optical lens and multilayer coating technology to effectively increase light transmittance and control backlight ghost Image and glare
Gold-plated-contact metal bayonet
Adopts gold-plated contact and high-precision metal bayonet can effectively improve the signal conductivity and corrosion.
Portable lens
Adopts high quality plastic as external structure, the overall weight is only 146g,which is convenient for outdoor shooting.
Simon Vallée
Reviewed in Canada on July 8, 2024
So it's light, it's bright, it's a great focal length for portraits. Image quality is okay, a bit soft, certainly not as sharp as my brand lenses (Panasonic, M Zuiko). But the big issue for me is the aperture blades seems to get stuck occasionally, which manifests as the image being taken at a wider aperture than intended. For example, I put aperture at f2.8, and the lens aperture doesn't close fast enough when pressing the shutter so I end up with a photo taken at f1.7 which is more than one stop over-exposed.The only work around I've found is to take a lot of photos automatically one after the other, and then I can see a third to half of them are over-exposed due to an unproperly closed aperture diaphragm, but the rest are fine.Maybe it's just my unit, showing poor quality control from Yongnuo, maybe it's a common issue, I don't know. If I had known, I wouldn't have bought it and would have paid a bit more for the Panasonic or M Zuiko lenses.
Steven S
Reviewed in the United States on March 26, 2023
For an inexpensive lens the image quality is pretty impressive. To me it has an almost an old film lens quality to it. Wish I had purchased this lens sooner.
B.A.
Reviewed in Canada on November 21, 2023
I was so curious on how this Chinese made lens was made. I have read mixed reviews about this lens and sad to say, some claims it has weather sealing but when I received and examined the lens, I found out that it is not weather sealed. I was looking for a good portrait lens with at least a splash seal but there was none.As per the performance of the lens, it is quite slow in reaction time and there are times, it fail acquiring the subjects focus. I never encountered these type of issues with Lumix 25mm f1.7 which I used extensively.Overall, it is a decent lens with a very bad aesthetics in a slow reaction time. For portraits inn the studio, this is perfect with good lighting especially outdoors. It delivers as expected.
mLo68
Reviewed in the United States on November 13, 2023
Impressively well-constructed for the price. It doesn't look or feel as cheap as I expected it to. I'm not a pro photographer, but the optics seem more than sharp enough for my needs. The equivalent 85mm focal length is best suited for portraits but I find that it can also be a decent walkabout lens at times. I really like this lens. Yes, the Panasonic 42.5mm lens is sharper and it includes image stabilization...but the Yongnuo is much less expensive and it's surprisingly good for that price.
B13ent
Reviewed in the United States on November 30, 2022
As descripved
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