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S-M-C Takumar / Super TAKUMAR / Takumar 6x7 400mm F4

Sharpness 
 9.0
Aberrations 
 9.0
Handling 
 9.0
Value 
 9.0
Reviews Views Date of last review
3 26,246 Thu May 15, 2014
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Recommended By Average Price Average User Rating
100% of reviewers $965.00 8.50
S-M-C Takumar / Super TAKUMAR / Takumar 6x7 400mm F4
supersize


Description:
400mm telephoto lens for the Pentax 6x7 system. This lens has a manual diaphram only. Go for the M* version for automatic diaphram. The lens camne in three variants all with the same optical formula:

Takumar 6x7 400mm F4
Image Format
6x7
Lens Mount
Pentax 6x7
Aperture Ring
Yes (no A setting)
Diaphragm
Manual, 12 blades
Optics
5 elements, 5 groups
Mount Variant
Outer Bayonet
Max. Aperture
F4
Min. Aperture
F45
Focusing
Manual
Min. Focus
800 cm
Max. Magnification
0x
Filter Size
77 mm (Rear)
Internal Focus
No
Field of View (Diag. / Horiz.)
12.7 ° / 10 °
Hood
Built-in, slide out
Case
Lens Cap
Coating
Weather Sealing
No
Other Features
Tripod Mount
Diam x Length
115 x 287 mm
Weight
2570 g
Production Years
1969 to 1971
Notes
Engraved name: TAKUMAR/6x7 1:4/400
Variants

1969: TAKUMAR/6x7 1:4/400 (this lens)
1971: SUPER-TAKUMAR/6x7 1:4/400
1981: Super-Multi-Coated TAKUMAR/6x7 1:4/400


Super Takumar 6x7 400mm F4
Image Format
6x7
Lens Mount
Pentax 6x7
Aperture Ring
Yes (no A setting)
Diaphragm
Manual, 12 blades
Optics
5 elements, 5 groups
Mount Variant
Outer Bayonet
Max. Aperture
F4
Min. Aperture
F45
Focusing
Manual
Min. Focus
800 cm
Max. Magnification
0x
Filter Size
77 mm (Rear)
Internal Focus
No
Field of View (Diag. / Horiz.)
12.7 ° / 10 °
Hood
Built-in, slide out
Case
Lens Cap
Coating
Weather Sealing
No
Other Features
Tripod Mount
Diam x Length
115 x 287 mm
Weight
2570 g
Production Years
1971 to 1981
Notes
Engraved name: SUPER-TAKUMAR/6x7 1:4/400
Optics unchanged from the previous variant
Variants

1969: TAKUMAR/6x7 1:4/400
1971: SUPER-TAKUMAR/6x7 1:4/400 (this lens)
1981: Super-Multi-Coated TAKUMAR/6x7 1:4/400


Super-Multi-Coated Takumar 6x7 400mm F4
Image Format
6x7
Lens Mount
Pentax 6x7
Aperture Ring
Yes (no A setting)
Diaphragm
Manual, 12 blades
Optics
5 elements, 5 groups
Mount Variant
Outer Bayonet
Max. Aperture
F4
Min. Aperture
F45
Focusing
Manual
Min. Focus
800 cm
Max. Magnification
0x
Filter Size
77 mm (Rear)
Internal Focus
No
Field of View (Diag. / Horiz.)
12.7 ° / 10 °
Hood
Built-in, slide out
Case
Lens Cap
Coating
SMC
Weather Sealing
No
Other Features
Tripod Mount
Diam x Length
115 x 287 mm
Weight
2570 g
Production Years
1981 (start of production)
Notes
Engraved name: Super-Multi-Coated TAKUMAR/6x7 1:4/400
Optics unchanged from the previous variant
Variants

1969: TAKUMAR/6x7 1:4/400
1971: SUPER-TAKUMAR/6x7 1:4/400
1981: Super-Multi-Coated TAKUMAR/6x7 1:4/400 (this lens)

Features:
Manual FocusAperture RingMedium-Format SupportAdapter needed for DSLRsDiscontinued
Price History:



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Site Supporter

Registered: October, 2008
Location: Vancouver, Canada
Posts: 5,334

3 users found this helpful
Lens Review Date: May 15, 2014 I can recommend this lens: Yes | Price: $630.00 | Rating: 8 

 
Pros: Excellent optics for an old 6x7 telephoto, inexpensive.
Cons: Poor minimum focusing distance, manual diaphragm & outer bayonet mount.
Camera Used: 6x7, 67 and 67II   

The 400/4 was one of the original lenses when Pentax introduced the 6x7 system in 1969. I have the third and last 1981 version (SMC Takumar 6x7 400/4) and it has the same optics as its predecessors and the full SMC coatings. The SMC Takumar 6x7 400/4 was replaced by the SMC Pentax-M* 67 400mm f/4 ED in 1986.

Usage:
The 6x7 400/4 features include a tripod mount, a manual diaphragm, a rear filter holder, a minimum aperture of f/45 and the older outer bayonet lens mount. The 6x7 400/4 weighs in at 2570g and is 287mm long. Compared to some other 6x7 telephotos the 6x7 400/4 is relatively light and small, however the lens still requires proper tripod support. Having to use stop-down metering and the outer bayonet mount are a bit of a pain, but you get used to both after a while.

CLOSE-UP WORK: These older 6x7 Takumar telephoto lenses all have a poor minimum focusing distance and the 6x7 400/4 is no exception (8.0 meters). If you want to get closer, you will need to use extension tubes. The 6x7 400/4 requires the use of the older “outer bayonet” extension tube set, which has only two tubes. This tube set is hard to find, but does work quite well. You can reduce the minimum focusing distance of the 6x7 400/4 down to 2.76 meters if you use both tubes.

REAR CONVERTERS: You can use the older T6-2X & 2X Outer Bayonet and the newer 1.4X & 2X rear converters with the 6x7 400/4. This will extend the focal length to 560mm or 800mm and makes the 6x7 400/4 quite versatile. Pentax suggests when using the newer converters you stop down the aperture to f/8 or smaller, to avoid light fall off at the corners when shooting at or near fully open. I have used both the newer 1.4X & 2X converters with my 6x7 400/4 and the results are quite good.

FILTER: The 6x7 400/4 uses 77mm screw in filters, or Pentax 6x7 77mm bayonet filters. Filters are attached to a removable adaptor ring, which screws into the rear of the lens.

CASE: The 6x7 400/4 comes with a dedicated hard lens case. The case also has a sturdy shoulder strap which makes it easy to carry the lens.

HOOD: The 6x7 400/4 has a built-in hood that extends. The front of the lens is protected by a hard leather lens cover lined with felt.

Summary:
If you want to get into the world of long telephoto lenses for the Pentax 6x7 system on a budget, the SMC Takumar 6x7 400/4 is the way to go. While it can’t compete with the newer Pentax 67 ED glass lenses optically, it’s equal or better than all the other older Takumar 6x7 telephotos in the 300mm to 1000mm focal range.

Price: I found my SMC Takumar 6x7 400/4 on eBay and it cost $630.00USD. It was EXC+ condition and came with the hard lens case, front lens cover & shoulder strap.


Sample shots taken with the SMC Takumar 6x7 400/4. Photos are medium resolution Lab scans from original slides or negatives.

Camera: 67II Film: Fuji Provia 400X ISO: 400 (Using the 67 2X Rear Converter)





Camera: 67II Film: Ilford SFX 200 ISO: 200 (Using the 67 1.4X Rear Converter)
   
Senior Member

Registered: February, 2009
Location: SLovakia
Posts: 140

1 user found this helpful
Lens Review Date: September 20, 2009 I can recommend this lens: Yes | Price: N/A | Rating: N/A 

 
Pros:
Cons:

Beautiful front lens with 108mm thread:





Outer Bayonet mount, it takes 77mm filters:





12 rounded - aperture blades is flower-shaped at f16:






At f22 getting perfectly round:






Non-rotable tripod mount:

   
Pentaxian

Registered: February, 2009
Location: Arizona
Posts: 910

6 users found this helpful
Lens Review Date: February 21, 2009 I can recommend this lens: Yes | Price: $1,300.00 | Rating: 9 

 
Pros: Sharpness, construction, diaphragm
Cons: Outer bay mount
Sharpness: 9    Aberrations: 9    Handling: 9    Value: 9   

Overview and Optics

As far I have seen, there has been only one optical configuration of the 400 Takumar, although there was an early 400 with a narrower focusing grip. I've owned this lens since 1998 and continue to be impressed with it. Its cross section (optical) is very similar to the 300mm Takumar, with an APO triplet up front and a weak positive element and negative element in the rear. But the two lenses couldn't be more different in performance. The 400 has better contrast, better color rendition, better sharpness and has a better diaphragm. It also has a tripod mount, which the old 300 could have used. Yes, the 400 will color fringe a bit at f/4 in high contrast situations but no worse than the 300. The 400's 12 blade diaphragm is a masterpiece. It is perfectly round at f/45. I do not recommend the use of a rear filter on the 400 because they cause reflection which can show up on film. Even the use of a multi coated rear filter does not solve the problem. The 600 is not as bad as the 400 in this regard. The front thread is 108mm and it is not possible to find this size filter unless custom made. I use a 105mm B+W polarizer and have it mounted inside a polycarbonate ring. This ring fits over the lens hood. The dual knob focusing of the 600 was not employed on the 400. It should have been. The helical system is really slow and shots will be missed because of it.

Sharpness

This lens shot at f/8 and infinity is amazingly sharp. My estimate in lp/mm is 90-95. It can rival any lens in the P67 lineup, (although its color rendition is not quite as good as the 300EDIF). It is sharper than the 45mm. In a comparison of slides taken with the 400 and the 55-100 zoom, it is difficult to tell them apart. The 400 and 75 f/4.5 are the sharpest Takumars. This lens is susceptible to shutter vib but not nearly as much as the 600 mm. Shooting at 1/2 to 1/30 second is risky on a tripod.

Odds and Ends-- Technical Info

This lens can be shot handheld without too much problem. Its weight muffles the mirror and shutter vib and so it can be shot at 1/125 sec with little worry. Strangely enough, some bodies have trouble metering with this lens attached. Outer bay lenses have this inherant problem. Only two of my three bodies will meter with this lens. But, the lens is only party to blame. The machining of the body metering pin is not accurate. There is a reason why Pentax went with inner bay, for the newer telephotos. At first, the manual diaphragm of this lens sounds like a major problem but in actual use, it is not. This lens uses a locking lens hood
that can take a bit of getting used to. To fully extend it, one needs to get the hood into a channel by twisting, to move it forward and lock it. There are some 400 Takumars that have a free moving lens hood though.
The use of conventional glass in the Takumar, puts it at a disadvantage to the 400 EDIF. Even though the Takumar is probably APO, it cannot focus all colors at the film plane from all zones of the lens. It is APO in only one zone. Outside this zone, colors focus in front or behind the film. This change in color focus by lens zone is known as spherochromatism. The marginal zone is always the worst and this is done by design. It allows the shooter to stop down to eliminate the poorly corrected marginal colors. By f/8 the Takumar does well in color elimination. The 400 EDIF has some color aberrations as well, but the spherochromatism is way less than the 400 Takumar. The EDIF has less spherochromatism than the Takumar but from f/8 to f/45 the color correction between the two is similar. Lateral color can be seen at the edges of the frame with the Takumar, on occasion, if there is very high contrast in the scene. The EDIF is better in this regard. I think 400 EDIF shooters would be surprised with the excellent performance of the 400 Takumar.

A comparison of the degree of color correction between the 400 and 600 Takumars shows a huge difference. The 400 is way superior to the 600 in regards to Longitudinal Chromatic aberration. The remedy for the 600 is stopping down.

Pentax's 1.4x rear converter will fit on this lens but I suggest stopping the lens down to at least f/6.7 to reduce color fringing possibilities. Be forewarned, that attaching the 1.4x to this lens can sometimes be aggravating, as it will resist seating. Oddly, the 400 with 1.4x (wide open = f/5.6) has less color fringing than the 600mm at f/5.6. Using the 1.4x and outer bay tubes on the 400 is a bit strange. The tubes must be put in front of the converter to fit correctly. This lens with the 1.4 yields 560mm focal length. The performance of this lens with the 1.4x is great- no degradation noticed. The use of the 1.4x will increase the susceptibility of this lens to shutter vib.

Overall, the 400mm Takumar is one of my favorite lenses for this system for reasons you have just read.
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