Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-19-2013, 09:47 AM   #1
New Member




Join Date: Jan 2013
Location: Belgrade
Posts: 4
Pentax 67 lenses look

Dear All,

I'll be a part of your Pentax family really soon. Can you please tell more about Pentax 67 lenses?

Are they creamy, warmer, cooler, sharp, etc...?

Best Regards


Last edited by colt67; 01-21-2013 at 01:45 AM.
01-19-2013, 10:23 AM   #2
Site Supporter
germar's Avatar

Join Date: Apr 2007
Location: Austin Texas
Photos: Gallery
Posts: 728
Welcome to the forums!

There are folks here that have a great deal more experience than I with 67 lenses, but I would give you a "it depends" sort of answer. I think it's really up to the film and processing techniques you employ in regard to look and color rendition. The lenses are all satisfactorily sharp, all contrasty, depth of field can be razor thin due to the film size and bokeh is creamy with a slightly "nervous" quality. There are some exceptional lenses, The 67 55mm f4 "late" is really nice and wonderfully sharp.

Now, I should shut up and let those who are fully experienced with these lenses chime in.
01-19-2013, 10:51 AM   #3
Veteran Member
Julie's Avatar

Join Date: Aug 2010
Location: Illinois
Photos: Gallery | Albums
Posts: 1,067
I have no experience with the 67 lenses, but if you have not done so already, take a look at some reviews, they might be helpful.

Pentax Lenses - Pentax Lens Reviews & Lens Database
01-19-2013, 11:03 AM   #4
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,436
You might also browse this thread:

https://www.pentaxforums.com/forums/pentax-medium-format-645-6x7-645d/87027-p...at-photos.html

Or...using Flickr, simply search for the lens (by name) that you are interested in.


Steve

01-19-2013, 11:45 AM   #5
Senior Member




Join Date: Jun 2010
Location: Hamburg
Posts: 267
I am all for sharpness at all apertures so can recommend the late 45, 55, 75, 105 and 100 Macro. They are all exceptional. The zoom 55-100 is a little soft wide open, the 165/2.8, too, I figured.
The bokeh of the 105 and 100 are absolutely beautiful.
01-19-2013, 12:48 PM   #6
New Member




Join Date: Jan 2013
Location: Belgrade
Posts: 4
Original Poster
Thank you very for your replies.

Viewing photos on Flickr or somewhere else isn't accurate for me. There are many different film stocks, lab process can vary a lot and digital image editing after all. Can you compare Pentax 67 lenses to Hasselblad, FF35 Leica/Nikkor ones?
01-19-2013, 01:31 PM   #7
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 7,103
The late (67 generation) 45, 75, 105mm are optically the same as the previous generation and I believe only one generation of the 100mm macro.

To describe all the system's lenses with the same description means sweeping generalizations. There are some lenses in Pentax 6x7/67 line up that are sharper than others just like any other lens brand. I'd say Pentax 6x7 lenses don't have a reputation for creamy bokeh but not known for being too harsh either. That can be very lens specific.
01-20-2013, 01:08 PM   #8
New Member




Join Date: Jan 2013
Location: Belgrade
Posts: 4
Original Poster
Thx Tuco.

I will buy late 1989 versions. Can you please tell me anything about mechanics and do these lenses breath during focusing?

01-20-2013, 08:14 PM   #9
Veteran Member
Silent Street's Avatar

Join Date: Nov 2011
Location: Geelong & Richmond, Vic AUS
Posts: 547
Clunky, heavy, slow to focus, aperature rings can sometimes be stiff (45mm f4 is one) and require knowing correct mount/dismount procedure in relation to TTL meter prism (e.g. with prism in place, lenses can be mounted and dismounted freely; but with prism removed, lens must also be removed, then prism mounted and then the lens mounted, in that order, or risk breaking the aperture coupling chain).

Some old Takumars are a good buy and lighter than the SMC Pentax 67 lenses, though the optics are early and have none of the subsequent improvements of the SMC variants.

What do you mean "do these lenses breath during focusing"?? I've never heard such a thing.

Concentrate on your baseline skill set in photography and not how glamorous lenses or bokeh is,and do something serious with the resulting images e.g print, frame, exhibit and/or sell.
01-21-2013, 01:43 AM   #10
New Member




Join Date: Jan 2013
Location: Belgrade
Posts: 4
Original Poster
SS,
I will use these lenses in a film/video production. Medium sensor video cameras are coming soon on our market.
That's why I am boring with my technical questions. My investition must be worth of it.

Lens breathing means that you have a small zoom effect when you pull focus. The width of the shot isn't the same at 2m or 8m focus marks.
Internal focus design eliminates these issues.
01-21-2013, 08:54 PM   #11
Pentaxian




Join Date: Feb 2009
Location: Arizona
Posts: 911
Colt, the lenses from the year you are talking about, 1989, were the lenses I first bought for this camera. They were a mixed bag. The 35mm was soft at the edges and similar to the 17mm Fisheye for the Leicaflex cameras in cross section. The 45mm is above average in performance and very similar in design to the 21mm Super-Angulon R made for the Leicaflex cameras. The latest 55mm is a high performance lens with a cross section similar to the Distagons. The 75mm Takumar was based on the French Retrofocus design and is one of the best P67 lenses ever made. The 90mm f/2.8 is a Planar/Double Gauss design and has not been improved upon since the advent of Lanthanum glass (many years). The 105mm is also a Double Gauss and has been a great performer since its introduction. The 100 macro is a Double Gauss also and is very sharp. The 135 macro is a Dynar type and is sharp but not stellar. The 150mm is also a Double Gauss but a 5 element instead of the normal 6 element- still very sharp. The 165 LS and 200 Pentax are both German design variants (Ernostar). The 200 is especially sharp and contrasty. The 165LS is nearly as sharp. The 165 f/2.8 is a Double Gauss design and moderately sharp. The 300mm Takumar is a telephoto design using conventional glass but is plagued with shutter vib and minimal contrast. It color fringes at wider stops due to spherochromatism. The newer 300mm is not a true tele design and uses low dispersion glass . Colors are well corrected passing through all lens zones.
02-07-2013, 10:23 AM   #12
Site Supporter




Join Date: Apr 2011
Location: Copenhagen
Photos: Gallery | Albums
Posts: 493
QuoteOriginally posted by colt67 Quote
Lens breathing means that you have a small zoom effect when you pull focus. The width of the shot isn't the same at 2m or 8m focus marks. Internal focus design eliminates these issues.
Hi there, the 4/135 Macro does that. The other (latest) lenses, that I have (55, 75) donīt. I have some samples here, that you are welcome to check out:
http://www.flickr.com/photos/32108329@N08/sets/72157628064543436/

Regards

Checked and found, that they (55, 75) actually do ‘breath‘! Sorry all.

Last edited by jt_cph_dk; 02-07-2013 at 12:36 PM. Reason: added text
02-07-2013, 11:26 AM   #13
Site Supporter




Join Date: Jan 2010
Location: Michigan
Photos: Gallery
Posts: 2,181
Hi, Colt
The Takumar 6X7 1:4.5 75mm does exhibit focus breathing when following focus from infinity to 1 metre.
I tried it on the rack of the Speed Graphic but having no experience on movie, I would not know how to quantify it.
With the rear focal plane at register (85mm) , a vertical object at about 1 metre distant, on the image edge moves inward about 7 mm when rotating from min focus to infinity.
I suppose this is not an issue for still photography but it might be as we start to use dslrs to make movies.

Incidentally, on 35mm I tried a SMC Pentax -M 1:2 85 mm and it breathes similarly to above.
However a Takumar-A Zoom 1:3.5~4.5 28~80mm shows almost no visible breathing over its focal length range.
02-07-2013, 12:29 PM   #14
Site Supporter




Join Date: Apr 2011
Location: Copenhagen
Photos: Gallery | Albums
Posts: 493
QuoteOriginally posted by wombat2go Quote
The Takumar 6X7 1:4.5 75mm does exhibit focus breathing when following focus from infinity to 1 metre
..You are very right, I hadnīt noticed and now we know, thankīs. Regards



Just checked and Iīll add, that the 55 does as well!

Last edited by jt_cph_dk; 02-07-2013 at 12:35 PM.
02-08-2013, 02:35 AM   #15
Site Supporter




Join Date: Apr 2011
Location: Copenhagen
Photos: Gallery | Albums
Posts: 493
So how much focus breathing do I find? How much wider does the frame get, as you focus out to infinity (decrease of focal lenth)?
(Completely informal, non-scientific test)

SMC P 4/55 ca. 15-20%, 4,5/75 ca. 5-10%, 4/135 Macro ca. 75-80% (latest versions)
S-T 105 ca. 5-10%, 4/200 5-10%

The 4/135 is very pronounced, the 4/55 has some. The rest slight.

Regards

Last edited by jt_cph_dk; 02-08-2013 at 02:50 AM.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, lenses, medium format, pentax, pentax 67 lenses
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax 67 Lenses Adapted to... Dougg Pentax Medium Format 5 03-26-2011 04:07 PM
Any lenses adaptable to Pentax 67? Makten Pentax Medium Format 10 03-09-2011 11:31 PM



All times are GMT -7. The time now is 07:41 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top