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Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)

Reviews Views Date of last review
2 24,024 Sat April 28, 2012
Recommended By Average Price Average User Rating
100% of reviewers $165.00 9.50
Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)

Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)
Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)
Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)

The adaptamatics were the precursors of the Tamron Adaptall swappable mount system. The two systems are completely different. Adaptamatic mounts can be found for: C-AF for Canon FP, FT, FX and Pellix (FL fit, usable on many FD cameras with restrictions); EX for Exakta bayonet; M42 screw thread; N-IF for Nikon F, F2, Nikkormats etc (pre-AI); M-A for Miranda F, G, Automex Ill and Sensorex ; SR (no meter coupling) and SRT (meter coupling) for Minolta ; K-A for Konica Autoreflex; P-E for Petri; T-O for Topcon.
Note: PK came later so no PK (use M42 + adapter).
The mount locking ring is a M58 thread - this DIY article discusses diy mount possibilites.

Scan of original adaptamatic user manual posted here.

Specs for early model. There were 3 versions from 1971-1973

Focal Length: 21mm
Optical construction: 8 elements in 6 groups
Aperture: f 4.5-16
Minimum Focus: 9.8" (0.25m)
Filter: 17mm (rear), 82mm (front)
Dimensions: diameter 3.3" (84mm) X 2.2" (55mm) long
Weight: 11.7 oz. (332g)
Lens Hood: Built in
Mount Type: Third-party (adapter required)
Price History:

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Site Supporter

Registered: November, 2010
Location: California
Posts: 2,223
Lens Review Date: April 28, 2012 I can recommend this lens: Yes | Price: $300.00 | Rating: 10 

Pros: Beautiful, Sharp stopped down to 8 -11, Big and strong built, great for architecture
Cons: Relatively slow (f/4.5 wide open)
Sharpness: 9    Aberrations: 10    Bokeh: 10    Handling: 10    Value: 9   

I bought this lens to complete my Adapt-a-Matic collection. Initially, I was not happy with the sharpness wide open. However, when stopped down to 8-11, it is just what you need. At f16, it is good and I have not noticed a negative effect. It has a beautiful big (82mm) front lens. This lens looks just too beautiful on the K5. I get some nice shots. However, I use it mostly for architecture and landscapes on a tripod, and it is just phenomenal. I will be posting some photos lately.

Adaptamatic21-4.5-Grapevine-1 by Palenquero, on Flickr

Adaptamatic21-4.5-AbstractShoppingCarts-1 by Palenquero, on Flickr
Site Supporter

Registered: June, 2008
Location: Florida Hill Country
Posts: 17,292
Lens Review Date: May 27, 2009 I can recommend this lens: Yes | Price: $30.00 | Rating: 9 

Pros: build and size
Cons: speed f 4.5
Sharpness: 7    Aberrations: 8    Bokeh: 7    Handling: 7    Value: 9    Camera Used: K20d and SV   

This is an interesting m42 mount lens from a collecting stand point. It works well on my SV and K200d. Some of these m42 Adaptamatics are nice looking pieces. The are well made pre-computer designs. It has been said that they are the lens industry's last generation line designed before computer designs.

This photo was taken with an early SV on Kodak BW400cn film. The negative was scanned with an Epson V500 scanner.

Add Review of Tamron Adaptamatic 21mm F4.5 (PFJ-45Au)

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