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Nikon 45mm f/2.8 P
(2001-2006)
© 2008 KenRockwell.com. All rights reserved.

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Nikon Nikkor 45mm f/2.8 p

Nikon 45mm f/2.8 P. enlarge. I'd get mine either here or look for it here. It helps me keep adding to this site when you get yours from these links, too.

 

Introduction

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This 45mm f/2.8 P lens is a tiny manual focus lens which works on all Nikons made since 1977. It is more of a collectible than a serious shooter's lens.

It was intended to match the cosmetics of the Nikon FM3a which was introduced a little earlier.

 

Compatibility

This 45mm f/2.8 focuses only manually.

The "P" means it also has the electronics needed to couple to every digital and autofocus Nikon for full automation, EXIF data and exposure control.

The only cameras to which it cannot couple are the pre-AI (1959-1977) cameras, for which the aperture ring is too narrow to accommodate the addition of a coupling prong. The instruction manual specifically notes this inability.

It engages Matrix metering with the FA. It works great on my D3, F3, F4, F6 and every camera I can find.

Oddly its only aperture scale is the tiny ADR (Aperture Direct Readout) scale, which is the smaller of two scales on most Nikkor lenses. Thus the finder displays in cameras like the FE, F2AS, FA and F4 show the colored numbers on silver, not white-on-black as most lenses.

 

History

Nikon made a similar 45mm f/2.8 GN (guide number) lens from 1968-1977. It was among Nikon's cheapest lenses and had a special feature which provided automatic exposure with flashbulbs. It had an almost identical, or possibly identical, Tessar optical formula.

This modern lens was introduced in February 2001 at the PMA trade show. A black version was introduced in September 2001. Oddly, this modern lens was introduced at a very high price ($450) for collectors.

Nikon made about 25,000 in silver and 12,000 black.

These were discontinued in 2006.

 

Specifications

Name

Nikon calls this the Nikon Nikkor 45mm f/2.8P.

 

Optics

4 elements in 3 groups.

It seems to be the classic Tessar design of 4 elements in 3 groups. Although Nikon calls this a "new Tessar-type optical design" the Tessar design was created in 1902 by Dr. Paul Rudolph at Zeiss. Maybe Nikon tweaked it a little bit based on more modern glass types, but it's still a great hundred-year-old lens design.

 

Diaphragm

7 rounded diaphragm blades, stopping down to f/22.

 

Minimum Aperture Lock

None, so be careful not to knock it, otherwise most cameras will blink "Fee" and stop metering. Most other lenses can lock their apertures at the smallest (f/22) setting to allow modern cameras to control apertures from the camera.

 

Close Focus:

18" (0.45m).

 

Filter Threads

52mm, metal.

 

Size

It's 0.7" long (17mm) by 2.5" (63mm) around.

 

Weight

4.2 oz. (120g).

 

Caps

Dedicated silver-painted plastic front cap and albino rear cap, included.

The front cap can fit over the hood.

 

Hood

HN-35 metal screw-in, included.

Also works with ancient HN-4 from the original 45mm f/2.8 GN.

 

Filter

52mm NC, included and coor-coordinated.

 

Case

Fuzzy pouch, included.

 

Performance

 

Distortion  

I see no distortion at 10 feet (3m).

 

Falloff (darkened corners)    back to performance     back to top

Avoid f/2.8 and you'll never see any falloff in real pictures.

 

f/2.8
f/4
f/5.6
f/8
f/11
f/16

 

 

 

Sharpness (on a 12MP FX D3)

As I predicted in 2001, sharpness is optimized for collectors, not for photographers.

It's very sharp in the center at all settings.

As expected for an f/2.8 Tessar, it's blurry in the corners at f/2.8, if you look on-screen at 100%. It's fine for normal photos.

The corners are optimum by f/8, but still a little bit softer even at f/5.6 if you're looking for it.

My $5 Olympus Trip 35 has the same Tessar lens. The $120 Chinese plastic 50mm f/1.8 AF-D is far superior.

This classic (1902) Tessar design isn't a good for modern f/2.8 lenses. The Tessar is a simple design originally intended for uncoated lenses of around f/6.3 and slower. The Tessar lenses I've tried of f/3.5 were very good, and my Nikkor-M 300mm f/9 for my view camera is extraordinary.

At f/2.8, a Tessar design is chosen for low cost and compact size, not modern optical superiority.

Close-up performance is great, and no different from performance at infinity.

Due to the simple design, this could be Nikon's contrastiest lens ever. I haven't specifically looked for that. It also could be decent for ultra-violet use; I haven't tried.

 

Compared

The manual-focus Voigtländer 40mm f/2 is better-made and sharper than any of the Nikon 35mm f/2 AF-D, 45mm f/2.8 AI-P or 50mm f/1.8 AF-D.

To show this, here are crops from the top right corner of 100% FX 12MP (D3 or D700) images:

Nikon 35mm f/2 AF-D Voigtlander 40mm f/2
Nikon 45mm f/2.8 P Nikon 50mm f/1.8 AF-D

Printed full-image at this size, these would be about 42 x 28" (105 x 70cm) prints, at least as seen on most 100 DPI computer monitors.

You'll never see this much difference in actual photos among these all-excellent lenses; in this case, I shot them in a way that would exaggerate the differences as much as possible.

 

Usage

Unlike traditional manual focus lenses, the presence of the electronics makes cameras presume you mean to control the aperture via the camera and not the aperture ring.

On my D3, I force the camera to follow the aperture ring setting (when shooting in manual and aperture-preferred modes) by setting MENU > Custom Settings > f7 > Aperture setting to OFF (aperture ring).

It's so small that there is no fixed middle ring by which you can grab it to mount and unmount. With this tiny 45mm lens you have to grab whatever you can and jam in on and off the camera.

 

Recommendations

For making photographs this obsolete Tessar design is worth $50 US. It should be Nikon's least expensive lens. It's only manual focus.

Its 2001 MSRP of $450, and 2008 collectors price of $400 (presuming you have the box and all parts as new), makes it an expensive collectors' piece, not a tool for creative artists.

Buy it if you love it, but get something else if you want the best lens for photography. I'd get any 50mm f/1.8 before I got this lens.

 

More Information

Nikon's Press Release

Nikon USA's Press Release

Black version press release

 

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