Nikkor 50mm f/1.4 AI Manual Focus Standard Lens. Mint-. Tested. See Test Images.

 See Hi-res images taken with this lens on Youtube...

https://youtu.be/NMn_pCG6MbU

This is a near pristine example of one of Nikon's high quality AI lenses from the 1970's and 1980's when Nikon didn't make anything except high quality pro lenses. This is the last, and best optical design AI specification lens. This one, lens number 4529426, was number 583,725 in a total manufacturing run of 910,681 units of the AI 50mm f1.4 lens made by Nikon Japan between March 1977 and June 1981. This one was made just under a quarter of the way through the production run, so we can be pretty confident that it was made just over half way through the production run around January 1980.

Key features

It has stunning optical and mechanical performance (see the pictures attached and at the Dropbox link further down) in a compact package, weighing around 255g. This 50mm is extremely well made, having far better optical and mechanical properties than the more modern AF lenses Nikon makes today. As with others I have tested, this lens seems to me to have excellent edge sharpnesss. Have a look at the test images and see if you agree.

See full review of this lens on Ken Rockwell's lens review page

Lens compatibility

Use on Digital Cameras

It works on all digital cameras with varying ease.

N.B. Most modern Nikon digital cameras have an electronic rangefinder bottom left of the viewfinder. One can use this with MF lenses to get precise focus

On the D810, D800, D800E, D750, D700, D610, D600, D500, D300s, D300, D200,D7200, D7100, D7000 series cameras, it can give full matrix metering and aperture-preferred auto (A) and manual (M) modes, and encodes the shooting aperture and focal length in the EXIF.

The Nikon 50mm f/1.4 AI works on the lesser cameras like the D80, D70 and D40, but without any metering - you'll have to use an external meter or guess using the LCD.

Use on Film Cameras

The Nikon 50mm f/1.4 AI is ideal for manual focus cameras like the FA, FE, FM and F2AS.

The F100 and most film cameras offer centre weighted metering with this lens, while the F4, F6 and FA are unique among film cameras in offering matrix metering with it.

For further reading on the subject, please visit Ken Rockwell's most instructive website on the subject

Overall Lens Condition: Mint-

Mechanical / Cosmetic: Mint-

The lens is in near pristine mechanical and cosmetic condition. It is unmarked apart from a few tiny nicks and rubs to the top edge of the conical ring atop the focus ring. They need a magnifying glass to be seen clearly. The focus ring action is premium Nikon; buttery smooth with no play at all in the action. The painted lettering is bright and completely intact. The aperture ring is smooth and 'clicky' and free moving. The iris blades are nice and snappy. The iris is in perfect condition and free of oil. The bayonet mount is also in as new condition.  

Optical: Mint

Not a great deal to say here. There is no detectable dust in the lens. The optics are otherwise flawless. There is no fungus, haze, mould or Balsam separation. This lens produces punchy, colourful and contrasty images straight from the camera as can be seen from the test images. The front are rear elements are pristine, the filter having done its job of protecting the front element.

Image quality

Image quality is superb. The Ken Rockwell review explains the characteristics of this lens in some detail. The images attached attest to the quality he sees. I took the images on a Sony A7R 42.4MP Mirrorless camera. It also works flawlessly on my Nikon D7200 and other Nikon film cameras, but I wanted to show off the astounding resolution the lens is capable of and also to show its full-frame capability. The 100% crop (when viewed on your PC screen at about 10" across would be equivalent to a full-size print of about 8 feet by 5 feet.

The Ebay Upload Images

The test images were shot in Newbury, UK. The first image is of the high street. It was shot wide open at f/1.4. The next two images are 100% centre and edge crops of the same image. It is dead sharp in the centre and excellent at the edges. Note the slight CA typical of this lens when used at maximum aperture in broad daylight. The next image is of the same scene, but this time it’s a 100% centre crop at f/2. The slight CA there is at f/1.4 has almost completely gone. The next two images are again of the same scene, but this time they are centre and edge crops at f/4 and f/5.6. They are perfect. The next image is of a building shot at f/5.6. The crop is again at 100%. The next images of the mossy wall were shot at f/1.4 and f/4 respectively and show the lovely Bokeh and DOF that this lens renders.

The Youtube Images

https://youtu.be/NMn_pCG6MbU

On Youtube, I have uploaded a series of images of the high street from f/1.4 all the way through to f/16. Notice the slight violet hue Chromatic aberration and Veiling on areas of high contrast at f/1.4. Only crazy people and lens testers shoot at f/1.4 in broad daylight. However, this is well controlled. It produces images with an almost dreamlike quality at night: just what this lens was designed for. As an aside, it's interesting that the CA renders as violet on the later AI optics rather than red on the earlier PRE-AI optics. Performance is perfect.

Any CA is pretty much gone by f/2, and it's perfect by f/2.8. It's razor sharp all the way up to and including f/16. I've taken some centre and edge crops in the sequence folder (look at the edges at f/11 and 16). It's dead sharp across the frame. also published an f/1.4 sequence as well and some more shots with 100% crops.

What's in the box?

Lens, Kenko MC Skylight 52mm filter, front and rear lens caps.

Please check out my other Nikon listings on eBay