This is a few days before the new moon, meaning that the quarter moon was in the east and really right in the Milky Way. Not the best conditions for Milky Way photography but it turned out to be pretty good testing conditions.

Yongnuo 50mm f/1.8 Lens Review | ePHOTOzine

If you search for it in yout ube you will see that the old Canon has much lower contrast in the corners and the sharpness PERCEPTION of the yongnuo wide open is better. But the bottom line is: Not much better wide open - doesn't improve while stopping it down. 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. Now my normal nightscape images avoid the moon even being in the sky so how does it do without the moon? Without the moon, the result is pretty similar to the Canon. One thing I do notice is the Yongnuo seems like it is slightly wider of a view than the Canon. Presuming the Canon is a true 50mm this seems like it might really be a 48mm. That does not really make a difference to me, but was something I noticed when doing some image comparison. The automatic focusing of the lens is fast enough. The autofocus speed is comparable to the Nikon 50/1.8G.

Lenses use different focusing motors. The YN50mm F1.8N uses a conventional micro motor, the Nikon 50/1.8G uses an ultrasonic Nikon SWM motor. The speed of focusing is practically the same. Attach the lens to the computer using a USB cable. If everything went well, the program will automatically detect the connected lens b. Focus point moves forward (towards the camera direction): Set the aperture value as F45, each time the [DOF Preview] button is short pressed, the focus offset decreases by “-1”. It should be possible to do a mechanically simple but optically better lens with maybe inferior AF without manual override by a low cost manufacturer for half the price. If someone has a great idea about lens design which is supported by the cut views of this yongnuo. I expected good corner to corner sharpness with Youngnuo. one low dispersion element in the optical circuit (for example, Sony 50 / 1.8 OSS no special elements)

YONGNUO YN50mm F1.8 II Standard Prime Lens Large Aperture YONGNUO YN50mm F1.8 II Standard Prime Lens Large Aperture

The Pawi is a large fruit eating bird (somewhat like a turkey I find) that has become rare as it was once widely hunted. It is protected. It also has coma (stars with wings in the corner of an image). Overall, it has similar coma to the Canon although it varied from image to image. See the image of the stars with wings. This is a crop of just the very corner of an image so you can get an idea of what it is.

The Yongnuo YN50mm F1.8Z DF DSM is more than just a ‘standard’ prime

UPDATED: After two weeks of active use in the field and about 5.000 shots, dust fell under the focus ring, after which a characteristic rubbing sound and a characteristic unpleasant tactile sensation appeared. Nikon 50mm 1: 1.8 AF Nikkor (the first version, MK I, Non-D) ñ the lens was produced only in Japan from 1986 to 1990. 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.

Sony Alpha Blog : Yongnuo 50mm F1.8 S DA DSM Sony Alpha Blog : Yongnuo 50mm F1.8 S DA DSM

Press and hold the [DOF Preview] Button, continuously toggle the focus mode switch of the lens for 10 times, and release the [DOF Preview] button to enter the fine-tuning system. I want to note that Yongnuo YN50mm F1.8N (for Nikon cameras) is better manufactured in terms of quality than Yongnuo Lens EF 50mm 1:1.8 (for Canon cameras). Unlike the version for Canon cameras, it uses a metal bayonet, a virtually internal focus, has a window with a focusing distance, a DOF scale, a more thoughtful AF/MF switch and can use a bayonet-type hood. 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. The YN 50 / 1.8S easily handles the 20MP APS-C type Exmor CMOS sensor at the heart of the camera Sony α3500 (ILCE-3500)... Optically, this is a good lens, of the obvious shortcomings - only chromatic aberration. A fairly flat field of sharpness over the entire frame deserves special attention. It’s quite difficult to notice the subsidence of sharpness even in the corners of the image. 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

Never and that was not what I have written. I was not clear in my last post: I think OTUS has very good to excellent corner sharpness wide open and sigma Art has good to very good c2c sharpness - I expect only good corner to corner sharpness for real photos and not for astronomy/reconnaissance/pixel peeping. After just one night out in the field with it I can say it will work. It was will be a little difficult to focus and watch out for the flare with the moon. Take the moon out of the equation and it will be very similar experience and images to using a Canon 50mm f/1.8. unusual / unique optical design. The optical scheme uses special elements with an extremely high refractive index. The front element is concave (a rarity for this kind of lens)