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SMC Pentax-M* 67 300mm F4 ED [IF] Review RSS Feed

SMC Pentax-M* 67 300mm F4 ED [IF]

Sharpness 
 9.5
Aberrations 
 9.3
Bokeh 
 9.3
Handling 
 9.0
Value 
 8.5
Reviews Views Date of last review
6 32,772 Sun June 17, 2018
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Recommended By Average Price Average User Rating
100% of reviewers $1,336.00 9.33
SMC Pentax-M* 67 300mm F4 ED [IF]
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Description:
The M* 67 300mm F4 lens features a newer construction than the other 300mm lenses for the Pentax 6x7 system.

SMC Pentax-M* 67 300mm F4 ED[IF]
© www.pentaxforums.com, sharable with attribution | Check camera compatibility
Image Format
6x7
Lens Mount
Pentax 6x7
Aperture Ring
Yes (no A setting)
Diaphragm
Automatic, 9 blades
Optics
9 elements, 9 groups
Mount Variant
Inner Bayonet
Check camera compatibility
Max. Aperture
F4
Min. Aperture
F32
Focusing
Manual
Min. Focus
200 cm
Max. Magnification
0x
Filter Size
82 mm
Internal Focus
Yes
Field of View (Diag. / Horiz.)
17 ° / 13.3 °
Hood
Case
Lens Cap
Coating
SMC
Weather Sealing
No
Other Features
Tripod Mount
Diam x Length
92.5 x 209.5 mm
Weight
1650 g
Production Years
1999 (start of production)
Notes
Engraved name: smc PENTAX-M* 67 1:4 300mm ED[IF]
User reviews
The M* 300mm is optically and physically different from the other 6x7 300mm lenses.
Features:
Manual FocusInternal FocusingAperture RingMedium-Format SupportAdapter needed for DSLRsDiscontinued
Price History:



Add Review of SMC Pentax-M* 67 300mm F4 ED [IF]
Author:
Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-6 of 6
New Member

Registered: June, 2017
Posts: 4
Lens Review Date: June 17, 2018 I can recommend this lens: Yes | Price: $980.00 | Rating: 10 

 
Pros: sharpness, handling, minimum focus distance
Cons: none
Sharpness: 10    Aberrations: 9    Bokeh: 8    Handling: 10    Value: 9    Camera Used: Pentax K5 II   

With my Pentax K5 II, this lens produces excellent image quality even with its companion 1.4x rear converter. I currently use this combo as my main equipment for bird photography. With very short minimum focus distance, it also works very well with little creatures like butterflies, dragonflies, and small reptiles.

I normally use the set with a small Gitzo fluid head mounted on a monopod. Manual-focusing is very easy and buttery smooth using my left thumb or index finger alone.
   
New Member

Registered: September, 2014
Location: Sydney
Posts: 2
Lens Review Date: October 25, 2014 I can recommend this lens: Yes | Price: N/A | Rating: 9 

 
Pros: Sharpness, Colour, Easy of use f4
Cons: None to speak of it's a big lens.
Sharpness: 10    Aberrations: 9    Bokeh: 10    Handling: 9    Value: 10   

Having just received this lens I was keen to see how it performed handheld on my 645Z and it doesn't disappoint. For it's age if you want an excellent lens for your 645D or 645Z then you can't go wrong. Having used Canon and Carl Zeiss lenses for years the Pentax 300mm is a no brainer. I'm no expert however I can't see why a 67 lens is not a bargain at today's prices.
I agree fully with the thoughts of the previous reviewers and it was the advice given by these users that I decided to buy the lens.
The image below was taken handheld at f22, 1/200, iso 400 on a Pentax 645Z.
   
Site Supporter

Registered: January, 2009
Location: East Bay Area, CA
Posts: 6,004

2 users found this helpful
Lens Review Date: March 13, 2014 I can recommend this lens: Yes | Price: $1,200.00 | Rating: 9 

 
Pros: sharp, durable, smooth large focus ring with long throw
Cons: heavy, pricey, heavy & pricey
Sharpness: 9    Aberrations: 10    Bokeh: 10    Handling: 10    Value: 9    Camera Used: 645D   

I bought this lens to use on my 645D with the 67>645 adaptor ring. I also have a 67 1.4x TC for use with this combination.

I am more than impressed with the performance of the lens mounted to the 645D & 645Z. The IQ is stunning and I've yet to notice any problems with CA which I always expect to see with slightly older teles. No issues here.

Obviously, the large size of the lens make me really consider on which outings I'll take it, but I wouldn't be happy with the lightest possible 300mm lens if it took bad pictures, so...

I'd probably rate this a 9.5, but let's call it a solid 9. I love it!

PS - I did not initially realize that the mounting foot of this lens may be removed and reversed to throw that weight forward a good bit and improve the overall balance of the rig when using a non gimbal tripod head. nice touch!

PPS - if you use a non-pentax 67>645 ring adaptor, such as Fotodiox, you must apply some flat black paint to the shiny black anodized throat section of the adaptor or else, you could see some serious light reflection on your images. I sprayed BBQ grill flat paint into the paint cap and applied with an artist brush, took 5-10min. This is not an issue with the lens, just the adaptor ring. Be warned!


White Set 2015

Party In Berkeley

365

Sea Lamp

why stop there? Here is a whole album of my 67 M*300/4 shots, as used on 645D and 645Z: https://www.flickr.com/photos/mikeoria/albums/72157663192487870
   
Pentaxian

Registered: February, 2009
Location: Arizona
Posts: 1,007

3 users found this helpful
Lens Review Date: April 22, 2012 I can recommend this lens: Yes | Price: $1,300.00 | Rating: 9 

 
Pros: Close focus, tripod mount, no color fringing
Cons: Heavy, rare, no f/45 stop
Sharpness: 9    Aberrations: 9    Handling: 7    Value: 6   

Overview and Optics

Initial opinion is that this is noticeably heavier than the older Takumar. It is also a bit longer than the older 300. It is nice to have a tripod mount on this newer lens since the Takumar was plagued with shutter vib issues. The close focus is MUCH closer than the Takumar. This is a 9 element lens with 2 ED (Low Dispersion) elements as opposed to the 5 element Takumar. More elements gives the designer many more degrees of freedom to control aberrations. This new 300 departs from the traditional telephoto design because it does not use a negative rear group but has one that is slightly positive. The cross section is nearly identical to the older 400 EDIF. It consists of a quadruplet up front which contains two ED elements, a middle group with a positive and negative element and a rear group consisting of 2 positive elements and 1 negative one. This lens is designed to be shot wide open with good performance and no fear of color fringing. The 300 EDIF was designed to take advantage of the low dispersion glass by controlling colors passing through all lens areas ( paraxial, zonal and marginal). This lack of longitudinal chromatic aberration in all lens zones makes for a lens with low spherochromatism and excellent performance. The use of ED glass also reduces lateral chromatic; something that the diaphragm cannot reduce and is therefore important to correct out. Both the 400 and 300 Takumars had some of this and it was annoying at times. I suspect that the 300 EDIF is corrected for 4 colors (superachromatic), probably red, blue, green & violet. The aspect that makes the use of ED glass so much better than conventional glass is the degree in which it controls the uncorrected colors (far violet, orange, teal and yellow). These colors will focus much closer to the film plane than when using conventional glass. This is the most important advantage of using low dispersion glass. The reason this lens is longer than the older 300mm is that Pentax wanted to get away from the true telephoto design that uses a negative group at the rear to shorten the overall length of the lens. This shortening also reduces performance because it magnifies the aberrations from the front group.

Since this lens was only produced for a short time, it is not a common lens. Its rarity and reputation have turned this lens into a much sought after optic. Its price on the used market remains high.

Accessories

Focusing is smooth but too easy. The focusing ring needs more resistance. It is too easy to move the focus when not intending to. The lens needs a click stop at infinity so that you know where infinity is when using this lens in low light. The lens hood does not fit as well as the hoods on the zoom lenses. The tripod mount rotates to allow vertical shooting and locks down snugly with a small knob. When rotating the lens and body within this mount, one can feel a notch, indicating when vertical is reached. This is a great idea. The DOF scale is very cramped and hard to read. It is one of the drawbacks from having a quick INTERNAL FOCUSING system. Little motion is needed to change focus. The front filter is the same as the older 300mm; 82mm.

The diaphragm is a nine blade type and not nearly as nice as the 12 blade one on the 400 Takumar. It is close to being round at f/5.6 but nowhere else.

I'm not sure why Pentax decided to abandon the f/45 stop on this new version of their 300 mm. It was quite useful on their 300 Takumar/Pentax for tough DOF shots. All of their longer telephotos have it.

Performance

Since this lens has close focus capability due to IF, it can be used for macro work. It combines well with the inner bay extension tubes. I used the #2 and #3 tubes and could fill the frame with a couple of 2 inch flowers. The old Takumar could not even come close to doing this with these two tubes. DOF is a bit limited in macro work with the 300 ED because it only stops to f/32. After several attempts at macro work with the #2 and #3 tubes, it is obvious that shooting from 1/2 to 1/30 second range affects the sharpness in a negative way due to shutter vib. The reason is because the distance between the tripod mount and the shutter is increased substantially, thus allowing more leverage and movement. Shutter speeds out of this range do quite well.

The 1.4X rear converter (gray) fits on this lens and does not degrade the image. This combination makes for some really sharp pictures. The logical comparison is between this combination and the 400 Takumar. In sharpness they are similar but the ED + 1.4 has way less lateral color. The ED + 1.4 competes well with the 400 EDIF.

A comparison between the 300 EDIF and the 400 Takumar in the f/8 to f/11 range show little difference.

A comparison between this rare 300mm and the older Takumar shows the main difference being at wide open aperture. The Takumar would color fringe at f/4 in high contrast situations. The ED version will not. The ED 300 is noticeably sharper wide open as well. At f/8 the older 300 does quite well since color fringing is reduced and so are the aberrations (with the exception of lateral color, distortion and curvature of field). The older Takumar does nearly as well as the ED 300 at f/8 in sharpness but the big difference is in lateral color. In the ED, it is undetectable; in the Takumar, it is a problem when contrast is high. Another difference between the two is in color rendition. The ED is the hands down winner here. The ED also has better contrast than the Takumar. Possibly even more significant than the optical differences between the two, is the addition of a tripod mount on the ED version. However, it is a mistake to think, that since this lens has a tripod mount, it can't be affected by shutter vib. It can be, especially when using the tripod fully extended in the shutter range of 1/2 to 1/30 sec. This becomes much worse when adding the 1.4X converter to the lens.
   
Pentaxian

Registered: February, 2008
Posts: 426
Lens Review Date: February 17, 2009 I can recommend this lens: Yes | Price: $1,100.00 | Rating: 10 

 
Pros: sharp, good bokeh
Cons: cost

Very sharp, even wide open and with smooth out of focus areas. Works well on Pentax DSLRs as well; no detectable CA or purple fringing.
   
Site Supporter

Registered: February, 2008
Location: MT
Posts: 1,270

1 user found this helpful
Lens Review Date: March 6, 2008 I can recommend this lens: Yes | Price: $2,100.00 | Rating: 9 

 
Pros: color rendition, compact tripod collar,
Cons: polarizer window loosens with time

Never realized how nice this lens would be for landscape extractions. It's really great! The compression effect of the telephoto linked with the optical quality of this lens equals superior landscape work. The ED element(s) get the color equation down better than I could have expected.
From the first turn of the nicely damped focus ring you can tell this is a top quality product. This is a "new generation" lens developed along with the 67II. I prefer Pentax's modern color rendition to their earlier lens colors.
Nice large lens hood blocks stray light, but affixes somewhat inconsistently--and the handy polarizer window (for spinning the polarizer without removing the lens hood) has worked itself a bit loose on my copy. Not enough of a glitch to dislike the lens, just a minor bother.
Also, earlier Pentax 67 lenses had bayonet mounts for filters and the only 82mm filters ever available from Pentax are bayonet models. This lens doesn't accept bayonet, so I can't use my beloved Pentax cloudy filter

See additional positive review and testing on the Luminous Landscape website.
Add Review of SMC Pentax-M* 67 300mm F4 ED [IF]



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