Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-28-2010, 06:07 PM   #1
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
Cooke / Taylor-Hobson Speed-Panchro S2 adaptable for SLR?

Hi, does anyone here have experience with Cooke / Taylor-Hobson Speed-Panchro S2 cine lenses? A little googling finds mention (but no details) of conversion for Nikon-F and Canon-EOS mounts. Has anyone here performed such a conversion? Can it be done without a machine shop? I'm especially interested in using a M42 or PK mount, but even Nikon would do. Thanks.

07-28-2010, 07:09 PM   #2
Veteran Member




Join Date: Feb 2010
Location: NYC
Photos: Gallery
Posts: 1,071
Is that a cine lens for the Arriflex (PL mount)? If so, there aren't many options. You'd probably have to machine it, the register distance is about 7mm longer than the Pentax K/m42's register distance but I have a feeling the lens itself takes up most of the 7mm.

There are photos of some Chinese folks radically modifying the lens to convert to m42 here:



Note the protruding rear elements past the m42 screw ring. Some machining is definitely required to remove parts of the lens. It also definitely won't work on Canon FF cameras.

The other option is to purchase an adapter that connects to the camera body like the one here:

ARRI PL mount to Canon EOS 5D 1D Mark IV adapter - eBay (item 250662175408 end time Aug-05-10 14:54:30 PDT)

Unfortunately, they're extremely expensive for an adapter.

The photos taken with it are rather interesting:





Most people would not like this mushy rendering but I do. I'm not sure it's worth your time to machine it/get an adapter for it. While interesting, there are much better options for a fraction of the price.
07-29-2010, 08:25 PM   #3
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
Original Poster
Thanks. I asked this question on a couple forums, with the answer: a machine-shop is required. Ratz. Oh well, the auction is over, the price was over my (meagre) budget anyway, whine whine...
07-29-2010, 08:34 PM   #4
Veteran Member




Join Date: Feb 2010
Location: NYC
Photos: Gallery
Posts: 1,071
I had forgotten to add that the Arriflex mount is for the motion picture 35mm frame, which is about half the size of still 35mm frame from what I hear. I think even crop sensor is too big for the Arriflex film sensor size. Depending on lens design, some may fit but they're not required to do so.

I'm sure that makes you feel a bit better.

Am I the only one here who loves machining/modifying mounts?

07-30-2010, 01:13 AM   #5
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
Original Poster
QuoteOriginally posted by hangu Quote
I had forgotten to add that the Arriflex mount is for the motion picture 35mm frame, which is about half the size of still 35mm frame from what I hear.
The original "full frame" meant a cine frame, which is 24x18mm. When Leica et al built 35mm cams, they designed for "double frame" of 36x24mm, which is what we call FF. When Oly built their "half-frame" film Pens, one purpose was to test cine film stock in its native size. Meanwhile, APS frames differ slightly amongst dSLR brands, but they're usually close to 25x17mm, the cine size.

QuoteQuote:
Am I the only one here who loves machining/modifying mounts?
Modifying, no. Machining, maybe. My machinery is limited to dremels and pliars.
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!
conversion, cooke, k-mount, pentax lens, s2, slr lens, speed-panchro
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mz-s slr newsjeff Pentax Film SLR Discussion 4 04-23-2010 08:11 AM
Pentax SLR lens - Good for Pentax D-SLR? mychen Troubleshooting and Beginner Help 16 12-31-2009 09:42 AM
new to k-x and slr slow2focus Troubleshooting and Beginner Help 2 12-09-2009 11:14 AM
Suggestion Change name of Film SLR and/or SLR Lens sub-forums clawhammer Site Suggestions and Help 4 07-31-2008 06:55 AM
I saw "Fire(works) & I saw Rain" James Taylor Tanglewood (10 pictures) vievetrick Post Your Photos! 8 07-06-2008 09:49 PM



All times are GMT -7. The time now is 02:49 PM. | See also: NikonForums.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