Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-11-2020, 10:08 PM   #1
Site Supporter
Site Supporter




Join Date: Sep 2006
Location: midwest, United States
Photos: Gallery | Albums
Posts: 4,948
How difficult is it to use a non Pentax lens on the 645Z?

I've only shot 645 & 6X7 (with adapter) lenses on the 645Z. Even manual focus lenses are easy. Now I'm thinking of trying a Carl Zeiss Jena mc 180 2.8 Sonnar. Obviously manual focus. Guessing it will be stop down metering? Does the green button work?
Thanks,
barondla

05-11-2020, 10:45 PM - 3 Likes   #2
Site Supporter
Site Supporter




Join Date: Feb 2018
Location: NoVA
Posts: 600


Here is a CZJ 180/2.8 Sonnar on a 645Z--a late model multicoated version but not the latest, dating from the late 70's. Yes, you stop it down for metering and exposing. I use aperture-priority (Av) or manual (with flash or an external meter, but usually Av) and let it set the shutter speed. Or TAv and let it set the ISO.


I never use the green button so I can't answer that.

Focus confirmation works great, but I also have a microprism screen (from an NII) that is accurate, too. I do my focusing wide open.

My adapter was made by DVDTechnik (aka Hartblei, or at least the same bunch of technicians in Kiev) and it's a little fiddly, but as long as I'm attentive not to force things it works fine.


(made with the Sonnar at f/4)

I have a Hasseblad compendium shade mounted on it. The shade uses a 95mm filter ring, but the plastic shade that comes with the Sonnar is mounted on an 86-95 adapter already, so it's an easy application. I set this up for use with studio lights, and the compendium shade is especially effective in that application.

I have lots of lenses in the Pentacon Six mount, but the Sonnar is one of only a few I would consider using with the Pentax. The Arsat Fisheye is another, and maybe, under certain circumstances, the 55mm Arsat PCS shift lens. The Pentax lenses are sharper, but lack the creamy rendering of the Sonnar.


Rick "nothing provides the creamy rendering of that Sonnar" Denney
05-12-2020, 12:01 AM   #3
Site Supporter
Site Supporter




Join Date: Sep 2006
Location: midwest, United States
Photos: Gallery | Albums
Posts: 4,948
Original Poster
QuoteOriginally posted by rdenney Quote

Here is a CZJ 180/2.8 Sonnar on a 645Z--a late model multicoated version but not the latest, dating from the late 70's. Yes, you stop it down for metering and exposing. I use aperture-priority (Av) or manual (with flash or an external meter, but usually Av) and let it set the shutter speed. Or TAv and let it set the ISO.


I never use the green button so I can't answer that.

Focus confirmation works great, but I also have a microprism screen (from an NII) that is accurate, too. I do my focusing wide open.

My adapter was made by DVDTechnik (aka Hartblei, or at least the same bunch of technicians in Kiev) and it's a little fiddly, but as long as I'm attentive not to force things it works fine.


(made with the Sonnar at f/4)

I have a Hasseblad compendium shade mounted on it. The shade uses a 95mm filter ring, but the plastic shade that comes with the Sonnar is mounted on an 86-95 adapter already, so it's an easy application. I set this up for use with studio lights, and the compendium shade is especially effective in that application.

I have lots of lenses in the Pentacon Six mount, but the Sonnar is one of only a few I would consider using with the Pentax. The Arsat Fisheye is another, and maybe, under certain circumstances, the 55mm Arsat PCS shift lens. The Pentax lenses are sharper, but lack the creamy rendering of the Sonnar.


Rick "nothing provides the creamy rendering of that Sonnar" Denney
Thanks for the info. Your bokeh test introduced me to the 180. Searching for more tech info pulled up one for sale already adapted to Pentax 645.

Thanks,
barondla
05-12-2020, 05:48 AM - 1 Like   #4
Loyal Site Supporter
Loyal Site Supporter




Join Date: Feb 2018
Posts: 348
I have a small adapter ring that I use some Hasselblad / Zeiss V lenses on the 645. Am pleased with the results.

05-16-2020, 05:27 AM   #5
Site Supporter
Site Supporter
wa2kqy's Avatar

Join Date: Apr 2020
Location: Raleigh, NC
Photos: Albums
Posts: 274
Hi,

I shot for a while using a Canon 1Ds when it was new, using mostly Nikon manual focus lenses via an adapter. The Stop-Down shooting method sounds like a PIA, but it really isn't all that bad. Well, when not in a hurry anyway.

Stan
05-16-2020, 07:57 AM   #6
Site Supporter
Site Supporter




Join Date: Sep 2006
Location: midwest, United States
Photos: Gallery | Albums
Posts: 4,948
Original Poster
Thanks everyone for all the info. Didn't purchase the CZ 180. It was mislabeled as multicoated while being the older single coated version. I offered $20 less and seller corrected the ad but didn't bother to answer my offer. Sticking with Pentax lenses for now

Thanks,
barondla
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!
645d, 645z, camera, carl zeiss 180 sonnar, focus, lenses, medium format, non pentax lenses, pentax lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
light seal replacement: (diy) first time/last time easy/difficult?? Aaron28 Pentax Film SLR Discussion 23 05-17-2019 04:19 PM
Non-K, Non-42 Adaptable Lenses jawats Pentax SLR Lens Discussion 15 05-15-2018 07:29 AM
Is it that difficult to use a film flash on a digital? fstop18 Pentax DSLR Discussion 12 11-13-2015 09:52 PM
Suggestion New lens club for DAL (non-ltd, non-*) primes Jonathan Mac Site Suggestions and Help 2 03-22-2012 05:57 PM
People Sigma 70-200mm (non DG, non macro, non HSM) Just12hvFun Post Your Photos! 7 04-17-2010 10:49 PM



All times are GMT -7. The time now is 05:30 AM. | 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