Overview of YONGNUO LENS YN50mm F1.8 II




  1. In short
  2. Differences from the previous version
  3. All lenses from Yongnuo
  4. Main Specifications
  5. Assembly
  6. Focusing
  7. White version
  8. Image quality
  9. Sample Photos
  10. My experience
  11. Review wizard
  12. Price
  13. Alternatives
  14. Results
  15. User Comments
  16. Add your review or question on the lens

In this review, the YONGNUO LENS YN50mm F1.8 II will be abbreviated as 'Yongnuo 50 / 1.8 II'.



In short

Yongnuo 50 / 1.8 II - Upgrading 'Cheapest and Lightest Autofocus Fifty' for Canon DSLR Cameras - YONGNUO LENS EF 50mm 1: 1.8'.

All in all, Yongnuo 50 / 1.8 II became better than its predecessor. If the previous version copied Canon 50 / 1.8 II, then Yongnuo 50 / 1.8 II is already trying to copy something more advanced in something Canon 50 / 1.8 STM. True, Yongnuo 50 / 1.8 II and Canon 50 / 1.8 STM very different from each other.

Unfortunately, with the upgrade, the price tag for the lens has also risen.



Differences from the previous version

Yongnuo 50 / 1.8 II is an upgrade to an older lens YONGNUO LENS EF 50mm 1: 1.8. Below are the main differences between the versions.


  1. the old version was presented on December 27, 2014, the new version was presented after 4 years - on May 14, 2018
  2. new version has different case design
  3. in the new version is used metal mount (one of the main differences)
  4. new version has focus distance scale in meters and feet
  5. new version has minimum focusing distance 35 cm and, as a result, the maximum magnification ratio has improved. The first version had MDF 45 cm
  6. increased focus ring pitch from 45 to 120 degrees
  7. it is stated that the new version has a much better design, better autofocus performance, as well as a much better optical coating (whether this is so is an open question)
  8. It is stated that the new version may receive firmware updates through the camera. It is completely unknown how this will happen. There is nothing in the instructions about this.
  9. new version also available in white case, most likely for cameras with a white body color, such as the Canon 200D


  1. the new version does not indicate gold-plated microprocessor contacts
  2. the diameter of the filter increased from 52 to 58 mm
  3. increased weight and size of the lens
  4. focus ring has become plastic, not rubberized
  5. the new version is significantly more expensive than its predecessor
Optical Lens Circuits

GIF animation of the differences between lenses and their optical schemes. Lenses shown Canon Lens EF 50mm 1: 1.8, Canon Lens EF 50mm 1: 1.8 II, Canon Lens EF 50mm 1: 1.8 STM, Yongnuo Lens EF 50mm 1: 1.8 and Yongnuo Lens YN50mm F1.8 II (from this review)

All Yongnuo Lenses

Bayonet mount Sony FE [DF, FULL FRAME] и Sony E[DA,APS-C]:

  1. yongnuo 11 mm 1:1.8 DA DSM WL S [announcement]
  2. yongnuo 16 mm 1:1.8 DA DSM S [announcement]
  3. yongnuo 35 mm 1: 2 DF DSM S [review]
  4. yongnuo 50 mm 1: 1.8 DF DSM S [announce]
  5. yongnuo 50 mm 1:1.8 DA DSM S [overview]
  6. yongnuo 85 mm 1: 1.8 DF DSM S [review]
  7. yongnuo 85 mm 1:1.8 DF DSM S II [announcement]

Bayonet mount Canon RF (mirrorless full frame):

  1. yongnuo 35 mm 1: 2 DF DSM R [review]
  2. yongnuo 35 mm 1:2 CR [announcement]
  3. yongnuo 50 mm 1:1.8 DF DSM R [to be announced]
  4. yongnuo 85 mm 1:1.8 DF DSM R (two subversions with different names) [review]

Bayonet mount Nikon Z [DF, FULL FRAME + DA,APS-C]::

  1. yongnuo 11 mm 1:1.8 DA DSM WL Z [announcement]
  2. yongnuo 33 mm 1:1.4 DA DSM WL Z PRO [announcement]
  3. yongnuo 35 mm 1:2 DF DSM Z [announcement]
  4. yongnuo 50 mm 1:1.8 DF DSM Z [announcement]
  5. yongnuo 50 mm 1:1.8 DA DSM Z [review]
  6. yongnuo 56 mm 1:1.4 DA DSM WL PRO [announcement]
  7. yongnuo 85 mm 1:1.8 DF DSM Z [announcement]

Bayonet mount fujifilm x [DA,APS-C]:

  1. yongnuo 11 mm 1:1.8 DA DSM WL X [announcement]
  2. yongnuo 50 mm 1:1.8 DA DSM X Pro [Announcement]
  3. yongnuo 50 mm 1:1.8 DA DSM X [announcement + overview]

For the system Micro 4 / 3:

  1. yongnuo 25 mm 1: 1.7 [review]
  2. yongnuo 42.5 mm 1: 1.7 [review]
  3. yongnuo 42.5 mm 1:1.7 II [overview]
  4. yongnuo 12-35 mm 1:2.8-4 STM ASPH MACRO [announcement]

Bayonet mount Nikon f (mirrored full frame):

  1. yongnuo 14 mm 1: 2.8 [overview]
  2. yongnuo 35 mm 1: 2 [overview]
  3. yongnuo 40 mm 1: 2.8 [overview]
  4. yongnuo 50 mm 1: 1.8 [review]
  5. yongnuo 50 mm 1: 1.4 E [overview]
  6. yongnuo 60 mm 1:2 MACRO MF [overview]
  7. yongnuo 85 mm 1: 1.8 [overview]
  8. yongnuo 100 mm 1: 2 [overview]

Bayonet mount Canon EF (mirrored full frame):

  1. yongnuo 14 mm 1:2.8 [review N]
  2. yongnuo 35 mm 1: 2 [review]
  3. yongnuo 35 mm 1: 1.4 [overview]
  4. yongnuo 35 mm 1: 1.4C DF UWM [announce]
  5. yongnuo 50 mm 1: 1.8 [overview]
  6. yongnuo 50 mm 1:1.8 II [overview]
  7. yongnuo 50 mm 1: 1.4 [overview]
  8. yongnuo 60 mm 1:2 MACRO MF [review N]
  9. yongnuo 85 mm 1: 1.8 [review]
  10. yongnuo 100 mm 1: 2 [overview]


  1. Yongnuo YN433 (2023, Micro 4/3, 20 MP, 4K)
  2. Yongnuo YN455 (2021, Micro 4/3, 20 MP, 4K)
  3. Yongnuo YN450/450M (2019, Micro 4/3 -> Canon EF, 16 MP, 4K)

Lenses and cameras and many other products from Yongnuo can easily be found at Authorized Yongnuo Dealer / Store on Aliexpres.

My video on all Yongnuo lenses here.



Main technical characteristics of YONGNUO LENS YN50mm F1.8 II

Review Instance Name Near the front lens: YONGNUO LENS YN50mm F1.8 II Yongnuo Ø58mm. On the YOUNGNUO DIGITAL 50mm ❀0.35m / 1.15ft. On the box: YOUNGNUO DIGITAL Standart prime lens YN50mm F1.8 II
Basic properties
  • The lens uses a Canon mount EF (Eelectro-Focus) - primarily designed for Canon EOS full-frame cameras. Suitable for Canon mount cameras EF и Ef-s.
  • The lens uses a micro motor for auto focus and is a counterpart to Canon MM (Micro Motor)
  • II - second version of the lens
  • AF / MF (Auto Focus - MAnnual Pass Focus) - the lens is equipped with a focus mode switch
  • Multi-Enlightened Optics
  • Stated that the lens supports firmware upgrade
  • red chrome decorative ring :)
  • two color options: black and white
  • Important: a lens from a third-party manufacturer, which imposes some restrictions on its practical use
Front Filter Diameter 58 mm, plastic thread for filters
Focal length 50 mm

Zoom ratio 1 X (this is a fixed lens, it does not have a zoom)
Designed by for full-format digital cameras. The lens is suitable for everyone. Canon EOS SLR cameras
Number of aperture blades 7 rounded petals
Tags bayonet mount mark, MDF mark (lettering '0.35m / 1.15ft' next to the flower image)
Diaphragm F / 1.8 to F / 22
MDF 0.35 m, maximum magnification factor 0.21x (1: 4.76)
The weight 162 g
Optical design 6 elements in 5 groups. The lens does not use special optical elements in its optical design.Optical design Yongnuo Lens YN50mm F1.8 II

Optical circuit drawing copy YONGNUO LENS EF 50mm 1: 1.8 / Canon Lens EF 50mm 1: 1.8 II / Canon Lens EF 50mm 1: 1.8 / Canon EF Lens 50mm 1: 1.8 STM and many other similar lenses.

Optical design like a double Gaus lens (i.e. this is a regular old Planar).

Lens hood There is no hood in the scope of delivery or in the instructions. Most likely you can use any universal hoodwhich can be screwed into the thread of the front filter.
Manufacturer country China (China), there is no indication of the country of the manufacturer on the lens case.
Period May 14, 2018
Instructions View my scan (English only)
Price Aliexpress prices (cheapest)

Still the first version YONGNUO 50mm 1: 1.8 (YN50mm F1.8N) for Nikon cameras in some details, it remains better than the updated version of YONGNUO LENS YN50mm F1.8 II for Canon cameras (virtually internal focusing, a bayonet type hood, a wide rubberized focus ring, a separate window with a focus distance scale, DOF, etc.).




The review Yongnuo 50 / 1.8 II arrived completely new, in a full boxed kit. In a small box there is a warranty card, a card with the date of manufacture, instructions in Chinese and English, a desiccant and the lens itself with a front (YN-58) and a back cover. The box is made in the colors typical of the golden boxes of Nikon Nikkor lenses. The front and rear lenses of the lens are initially covered by special transport films.

The Yongnuo 50 / 1.8 II is not equipped with a hood, and there is no mention of the hood in the lens manual. Most likely with the lens can be used any hood for 'fifty dollars', which is installed in the thread of the front filter. Front lens deeply recessed in the frame of the case, which serves as a kind of built-in hood and helps the lens to work properly in side and back light.

The red ring looks and feels metallic, shimmers with light as if it were chrome-plated. In photographs, the ring appears to be just a colored strip, but in the live visual perception of the ring it has a slightly different effect. Perhaps this ring should refer to Canon's professional L-series lenses, for example Canon EF Lens 50mm 1: 1.2 L Ultrasonic... By the way, at the time of writing the review, in addition to the Yongnuo 50 / 1.8 II, they also had such a red ring Yongnuo Lens 14mm 1: 2.8 и Yongnuo LENS 60mm 1: 2 MACRO.

To the touch, the Yongnuo 50 / 1.8 II is made of good plastic, which allowed us to make the lens light and strong enough. Plastic with a characteristic tactile coating (seen in the photo below). The lens mount is made chromed metal. The focus ring, unfortunately, is plastic, not rubberized. The front and back covers are sturdy and reliable, easily removable and mounted on the lens. The Yongnuo 50 / 1.8 II is significantly better to the touch than YONGNUO 50 / 1.8.

The diameter of the front filter is 58 mm. Yongnuo 50 / 1.8 II, compared to the original similar lenses Canon 50 / 1.8 MKI, Canon 50 / 1.8 II, Canon 50 / 1.8 STM and compared to the previous version YONGNUO 50 / 1.8, is 'plump' enough.

Yongnuo 50 / 1.8 II uses a diaphragm with 7 rounded petals. With such a diaphragm you can get 14 ray stars from bright light sources. Diaphragm closes to F / 22, which is typical for 50 / 1.8 class lenses.

A bit of stones toward Yongnuo: on the official website (saved!) is either a photo, or a render, or a modified photo with an unnaturally large front lens, apparently to attract more attention to the new lens.



White version

UPDATED: In early autumn 2018, the Yongnuo 50 / 1.8 II appeared in a white case. Most likely this was done for 'compatibility' with white Canon cameras such as Canon 200D.

Images of the white version were taken from the official site.


For focusing, the Yongnuo 50 / 1.8 II uses micro motor and is an analog of Canon MM (Micro Motor). Auto focus will work with any SLR camera Canon EOS.

Focus speed average (closer to low), significantly lower (about 2 times) than the original lens Canon 50 / 1.8 II. Auto focus quite noisy.

I worked with a lens on a Canon Digital Rebel XTi camera (aka Canon EOS 400D Digital, aka Canon EOS Kiss Digital X with a very simple 9-point focusing system) and Canon 450D with the same focus module. Focusing poor, lens may often make focus errors, especially when using side focus points (a strong front focus is a common problem). But the network has a lot of information that with many other cameras there are no problems with focusing, I received the same behavior on different cameras with the previous model Yongnuo 50 / 1.8 MKI. Apparently the logic of the focus system was not updated.

The lens has an AF \ MF focus mode switch. Be sure to switch it to the MF position during manual focus. If this is not done, then the auto focus mechanism may be damaged. In AF mode, the focus ring is not locked, but continues to rotate due to the power of the micro motor, while it cannot be touched.

In manual focus mode, the focus ring rotates approximately 120 degrees. Plastic focus ring with grooves on the sides of the focusing distance marks. During the rotation of the focusing ring, the process itself is quite smooth, but still there is a sensation from the movement of 'plastic on plastic'.

Lens does not have internal focus, during focusing, the frame of the body ('trunk') moves forward about 2 centimeters, while front lens does not rotate. It is possible to use various filters without any problems.

The minimum focusing distance is only 35 cm, while you can get the maximum magnification for macro photography of 1: 4.76, which is not bad for such a lens. The original behaves in approximately the same way. Canon 50 / 1.8 STM (craftsmen found that despite the same data from the instructions, Yongnuo 50 / 1.8 II MDF is still slightly larger than that of Canon 50 / 1.8 STM).

The lens has a distance scale with marks in meters and feet. The scale is small, on it there are marks for 4.5, 2, 1.2, 0.7, 0.5, 0.4, 0.35 meters and a label of 'infinity'. Such a scale in itself is of little use and is present more for an approximate understanding of the focusing distance than for accurate focusing.

Other features:

  1. Yongnuo 50 / 1.8 II does not have a hard stop (hard infinity mechanical stop) which allows you to accurately and quickly focus the lens to infinity under any external temperature conditions. For accurate aiming at infinity, you cannot just bring the focus ring to its extreme position. The focus ring has a huge flight of infinity.
  2. Focus shift (shift-focus) is missing.
  3. Yongnuo 50 / 1.8 II has a tangible 'Focus Breathing' effect (changes in viewing angle during focusing). During focusing towards the MDF, the viewing angle decreases.
  4. Unknown compatibility with teleconverters. A
  5. The direction of the 'AF-MF' switch and the direction of the focus ring are the same as the original Canon 50 / 1.8 STM.
  6. Focusing is performed by simultaneously moving the entire lens block (all lenses) relative to the focal plane.

Important: Yongnuo 50 / 1.8 II is a third-party lens. It may happen that it will not work correctly with some Canon cameras. It is authentically known that:

  1. The lens sometimes continues to focus (it drives the lens all the way to the end, i.e., to MDF or to infinity) after the focus activation button has been depressed (usually by half-pressing the shutter button). This happens if the lens is not focused accurately enough (the lens somehow continues to focus when the focus button has already been released). Not everyone will notice this feature and it does not particularly interfere with comfortable work with the lens.
  2. Perhaps with other cameras there may be other unpleasant features.
  3. Lens has focus problems including Live View on cameras Canon 6D, 6D Mark II.
  4. The lens has problems with focus accuracy through JVI at the cameras Canon 400D, 450D.


Image quality

With image quality, the Yongnuo 50 / 1.8 II is doing pretty well.


  1. in the center of the frame on F / 1.8 the resolution does not shine, but still it is enough for many photo tasks
  2. there is a drop in sharpness to the edges of the frame at f / 1.8
  3. good resolution in the center of the frame on covered apertures after F / 2.5


  1. the overall level of distortion is at a level typical for such lenses
  2. the nature of distortion is unified, easily corrected in the editor


  1. general level vignetting is at the level typical for such lenses
  2. noticeable vignetting observed only at f / 1.8
  3. vignetting amplified with focus towards MDF
  4. on APS_C cameras with a sensor vignetting practically disappears at F / 2.8-F / 3.5
  5. vignetting easily fixable in the editor


  1. open diaphragms have a noticeable amount of spherical and chromatic aberrations
  2. the strongest chromatic aberration visible at the edges and corners of the image
  3. general level HA is at the level typical for such lenses
  4. there is strong friging (HA in the blur zone) and blooming (HA on very contrasting small details)


  1. the diaphragm forms fairly even discs of blur only in the F / 1.8-F / 3.5 range, at F / 3.5-F / 22 values ​​you can clearly trace the regular polygons from point light sources in the blur zone.
  2. color rendering is neutral, pleasant. The lens uses front lens enlightenment, which casts green shades. Many modern lenses have enlightenment that shimmers like Yongnuo 50 / 1.8 II.
  3. in some situations, the lens is very afraid of side and back light. May be tangible drop in contrast in side light.

Distinguish pictures from Yongnuo 50 / 1.8 II from Canon 50 / 1.8 MKI, Canon 50 / 1.8 II, Canon 50 / 1.8 STM, Yongnuo 50 / 1.8 MKI in a blind test it will be extremely difficult.



Sample Photos

All sample photos in the gallery below were shot using a Canon Digital Rebel XTi camera (aka Canon EOS 400D Digital, aka Canon EOS Kiss Digital X) and YONGNUO LENS YN50mm F1.8 II. Photos were taken by converting RAW ('.CR2') files using the original Canon Digital Photo Professional 4 (Canon DPP) utility. Some photos were captured using a polarizing filter HOYA 58mm PL-CIR.

Original RAW ('.CR2') files as well as JPEG files can be download from this link.

The gallery below was taken with a YONGNUO LENS YN50mm F1.8 II, a Canon Digital Rebel XTi camera (aka Canon EOS 400D Digital, aka Canon EOS Kiss Digital X) and such autofocus macro rings.

Several photos in processing can be viewed here.



My experience

Yongnuo 50 / 1.8 II turned out much better than its predecessor. If the price had remained the same, then this lens would have simply exorbitant price / quality indicators.

The solution is easy and simple to reduce MDF without changing the optical scheme, as well as add a metal lens mount, it is not so difficult to implement, but the result is a clone with claims to compete with Canon 50 / 1.8 STM. But, to face the truth, the Yongnuo 50 / 1.8 II is very far from Canon 50 / 1.8 STM, and the main reason for this is completely different focusing motors and the logic of the focusing systems.

If video is a priority, then Canon 50 / 1.8 STM will be a few goals higher than Yongnuo 50 / 1.8 II.

Personally, I liked the previous version better - it is the most 'hardcore', you should not expect anything special from it, at the same time Yongnuo 50 / 1.8 MKI quite decently removes. The updated version is already a more or less serious lens, at least at first glance, but the old optical circuit does not make it more productive, and the old autofocus logic has not been fixed.

A magnification factor of 1: 4.76 is not, in fact, a great achievement. A lot of whale lenses of the 18-55 / 3.5-5.6 class are much better in this regard. If you need macro photography with a fifty dollars, it’s better to buy the simplest and cheapest aftocus macro rings to it, the effect will be visible immediately (I, for example, have such).

At the cost of the new Yongnuo 50 / 1.8 II, you can buy the original Canon 50 / 1.8 II in a condition of used, in fact, which I recommend doing in cases of choice between Canon 50 / 1.8 II and Yongnuo 50 / 1.8 II.

Review wizard

Wizard text taken here, only a couple of errors have been fixed.

Never buy a Yongnuo YN50mm F1.8 II, this is not a Canon. Yongnuo are disposable lenses. Service centers do not take Yongnuo for repair and maintenance, they cost like Canon EF 50mm 1.8 II, and if Yongnuo is new for a while, it will last for a while, but then go to the trash bin or sell it to another “happy” (read: greedy and stupid) owner this bewilderment.

It’s better to buy killed in the trash or used, but better a new one, but Canon EF 50mm 1.8 and you will be happy.

I understand the people whose business it is and they need to earn money, but people, you hope REASONABLE, never buy a used / new or 50mm or 35mm or any Yongnuo.

Why am I writing? I am very sorry for my customers who bring us bewilderment in the snot and tears to the service center, after a fall or the slightest mechanical damage, this Yongnuo is no longer maintainable, there are no spare parts for it. I won’t write about how they work, there are a lot of reviews on the network, though you don’t need to read from paid commentators.

Why don't they write to me (us) here? Because I understand that they (would-be businessmen) are wrong and they have nothing to say, make a fool of people, know about the problem and stupidly keep quiet.




The Yongnuo 50 / 1.8 II is one of the cheapest prime lens for Canon EOS SLR cameras. Easiest and cheapest Buy Yongnuo 50 / 1.8 II on aliexpress.comFor example, from a trusted seller here at this link.

Comments on this post do not require registration. Anyone can leave a comment. Many different photographic equipment can be found on AliExpress.




Below is a list of fifty-fifty lenses and lenses that are very close in their focal length to 50 mm, which support auto focus and are suitable for full-frame cameras Canon EOS.


Canon Lens EF 50mm 1:1.8, version with a focusing distance window and metal mount March 1987 View price

Canon Lens EF 50mm 1:1.8 II, the second version without a window of focusing distances and a plastic bayonet mount.

This lens exists in two subversions:

  1. Canon Lens EF 50mm 1:1.8 II Made In Malaysia
  2. Canon Lens EF 50mm 1:1.8 II Made In Japan
Subversion fundamentally no different
December 1990 View price
Canon EF Lens 50mm 1:1.8 STM May 2015 View price
Canon EF Lens 50mm 1:1.4 Ultrasonic July 1993 View price
Canon EF Lens 50mm 1:1.2 USM Ultrasonic January 2007 View price
Canon EF Lens 50mm 1:1.0 l Ultrasonic September 1989 View price
Canon Compact macro Lens EF 50mm 1:2.5 December 1987 View price
Canon lens RF 50 mm F1.2 L USM September 2018 View price


Tamron SP 45mm F /1.8 Di VC USD F013 September 2015 View price


Sigma 50mm 1:1.4 DG HSM EX, this lens exists in two versions with a different type of body coating March 2008 View price
Sigma 50mm 1:1.4 DG HSM A (Art) January 2014 View price
Sigma 50mm 1:2.8 Macro 1990 View price

Sigma 50mm 1:2.8 Macro EX, there was a copy of this lens under the name Quantaray 50mm 1:2.8 Macro

1998 View price
Sigma 50mm 1:2.8 DG Macro EX June 2004 View price


Tokina Opera 50mm F1.4 FF February 2018 View price


Yongnuo Lens EF 50mm 1:1.8

There are several sub-versions with different spelling of the name near the front lens

  • YN50mm F1.8 YONGNUO Ø52mm
  • YONGNUO LENS EF 50mm 1: 1.8 YONGNUO Ø52mm
  • YONGNUO LENS EF 50mm 1: 1.8 YONGNUO INC. Ø52mm

Subversion fundamentally no different

December 2014 View price

Yongnuo Lens YN50mm F1.8 II

There are two options, depending on the color of the case: the black or white

May 2018 View price
Yongnuo Lens 50mm 1:1.4there was another prototype Yongnuo Lens EF 50mm 1:1.4 May 2018 View price




Yongnuo 50 / 1.8 II has a balanced price / quality ratio. As usual, one of the main problems with such solutions is the uncertainty in the quality spread from one instance to another. But, given that such lenses are most often used by amateur photographers for simple photo tasks, the Yongnuo 50 / 1.8 II can live a very long life and bring its owner a lot of good photos. Another problem with the Yongnuo 50 / 1.8 II is poor auto focus with some specific camera models.


  1. low cost ($ 60-80 for the new Yongnuo Yongnuo 50 / 1.8 II против 125 dollars for Canon 50 / 1.8 STM)
  2. high aperture
  3. quite convenient manual focus
  4. small MDF and, as a result, a good maximum magnification factor during macro photography. For most of these fifty dollars this indicator is worse
  5. there is a focus distance scale
  6. the filter frame does not rotate during focusing
  7. good build quality: metal mount, reliable covers
  8. light weight, compact enough
  9. seven-petal diaphragm, round discs of blur in the range of F / 1.8-F / 3.5
  10. the front lens is deeply recessed in the frame of the case, you can do without a hood
  11. Confident sharpness starting at F / 2.2-F / 2.5 in the center of the frame. Moderate level of basic optical distortion (aberration, vignetting, distortion) comparable to the original c Canon 50 / 1.8 STM
  12. theoretical possibility of updating the lens firmware
  13. profile for ACR / Lightroom from Yongnuo 50 / 1.8 MKI Well suited for Yongnuo 50 / 1.8 II


  1. serious problems with focusing with some cameras (400D, 450D, at the same time, no significant problems with many other cameras)
  2. during focusing towards MDF, the front of the frame (trunk) moves forward
  3. large filter diameter (58 mm for Yongnuo 50 / 1.8 II versus 49 mm for Canon 50 / 1.8 STM)
  4. average focusing speed, significantly lower than that of Canon 50 / 1.8 II
  5. lack of the function of constant manual focus control similar to, for example, the FTM mode Canon 50 / 1.8 STM
  6. tangible noise from the focus motor
  7. the hood is screwed into the thread under the filters, the hood is not included in the package, there is no information on compatible hoods
  8. lack of basic dust and moisture protection
  9. tangible effect of 'Focus Breathing' (changes in viewing angle during focusing)
  10. the aperture at F / 3.5-F / 22 is poorly rounded and is a regular heptagon
  11. there is no tag for working in the infrared spectrum and the depth of field scale that the CANON LENS EF 50mm 1: 1.8
  12. there is incompatibility with some cameras and / or teleconverters (no exact data)
  13. it is absolutely unclear how the lens firmware will be updated, although the possibility of this function is announced on the official page of the lens. At least the Yongnuo 50 / 1.8 II does not have a USB port for firmware, which most of the latest Yongnuo lenses have, for example, such as Yongnuo Lens 14mm 1: 2.8 for canon
  14. lack of data about the lens in modern cameras, which makes it difficult to automatically correct some types of optical distortion (distortion, vignetting etc.)
  15. lack of a lens profile in popular RAW converters (perhaps this is only a temporary drawback, you can create a profile yourself)
  16. the survivability of this lens and the variation in quality are unknown. Little information is available on certified Yongnuo lens service centers. Bad reviews of photographic technicians
  17. certain imperfections in the image (poor sharpness at F / 1.8 at the corners and edges of the image, poor resistance to lateral light, a set of optical distortions characteristic of such fifty dollars)
  18. the optical design is not updated and copies the optical design of the lenses Canon Lens EF 50mm 1: 1.8 и Canon Lens EF 50mm 1: 1.8 II, the first of which was introduced back in March 1987

UPDATE: appeared YONGNUO 50mm F / 1.4 review.

Material prepared Arkady Shapoval. Training/Consultations | Youtube | Facebook | Instagram | Twitter | Telegram

Add a comment:



Comments: 67, on the topic: Review YONGNUO LENS YN50mm F1.8 II

  • Denis

    Good day.
    I use canon 500D, a year ago I got myself this new lens.
    A year has passed - the diaphragm has stopped changing. At some point I photographed it completely open, and so it remained on it. Can someone tell me how best to proceed? take it to the workshop or try to disassemble it yourself. What could be connected with? jammed?
    As for the lens itself, questions as a photo did not arise. Colors are good. Sharpness was always enough. Photos are mainly from the category of food photos, for leisurely shooting. Although sometimes a child photographed a running man. There were no questions on the focus, and on the whole, everything was fine.

    • Alexander

      Most likely, oil has gotten on the aperture blades. The lens is easy to disassemble, at least MKI videos on Youtube. The diaphragm on the latches, I washed the petals with technical alcohol, completely changed the lubricant. There should be very little lubrication.

      • US6IBD

        When I bought a second-hand Helios-81N, its petals were in oil, but the diaphragm worked, albeit much later than the shutter. If it is open all the time, then the problem is probably not in the oil. Although you can try and figure it out yourself.

  • Arkady Shapoval

    It just so happens that I have used almost all Yongnuo lenses. Added YouTube videos for all Yongnuo lenses (generations, lineups, etc.) https://youtu.be/AfQ76sAwIac

  • Oleg

    I'll tell you about my “experience” with this lens model.
    A few days ago I tried to buy this lens, I wanted a simple and inexpensive full-frame camera.
    The first one I found on the olkh in a new and inexpensive state, the lens arrived at the NP department for olkh delivery. I came with my carcass, I liked the lens in terms of sharpness on the open, surprisingly not so noisy, and in general it is quite suitable for such money.

    But ... if you focus on an object closer than 0.7m on the distance scale, then the focusing does not go back towards infinity, and the lens does not emit any sounds, such as the operation of the motor. At the same time, focusing is activated in the direction of decreasing the distance to the subject. It is worth switching to manual focusing mode and moving the ring further 0.7m and switching back to AF mode - it starts spinning towards infinity. Obviously, the lens did not take away.

    I decided to buy a new one, he arrived and it turned out that he had the same problem. All this despite the fact that there are no problems with Canon's own fifty-kopeck piece (and with other lenses as well). The store offered a replacement, but considering 2 unsuccessful attempts in a row, decided to abstain, the store returned the money, for which special thanks.
    These are the pies.

    • Alexey

      Xs. There were mainly sigma and tamron. Native glass was recently taken. The camera and the glass seemed to have found each other ... In all respects. Even because the camera sees what kind of glass is worn on it ... It's a trifle, but nice ...

  • Alexey

    Correct afto-focus and on occasions. In one paragraph.

  • Yura

    Hello, where can I get the firmware?

Add a comment

Copyright © Radojuva.com. Blog author - Photographer in Kiev Arkady Shapoval. 2009-2023

English-version of this article https://radojuva.com/en/2018/08/yongnuo-lens-yn50mm-f1-8-ii/

Versión en español de este artículo https://radojuva.com/es/2018/08/yongnuo-lens-yn50mm-f1-8-ii/