Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-23-2014, 07:24 PM   #1
Junior Member




Join Date: Aug 2014
Posts: 31
67-645 adapter and 645Z

Does anyone have the 67-645 adapter and 645Z with an 67 55mm lens? Are you able to reach infinity focus?

10-23-2014, 09:48 PM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 43,118
QuoteOriginally posted by BBC5 Quote
Does anyone have the 67-645 adapter and 645Z with an 67 55mm lens? Are you able to reach infinity focus?
Yes and yes. There are no limitations with the adapter except you have to set the aperture manually using the aperture ring.

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

10-23-2014, 10:06 PM   #3
Junior Member




Join Date: Aug 2014
Posts: 31
Original Poster
Then there may be something wrong with my 67 55mm lens. The adapter is from fotodiox, and infinity focus works on my other 67 lenses...75mm/135mm & 200mm.
10-30-2014, 03:04 PM   #4
Junior Member




Join Date: Aug 2014
Posts: 31
Original Poster
How about anyone else with a Fotodiox adapter and a 67 55mm lens on a 645Z?

Are you able to reach infinity?

11-13-2014, 08:42 PM   #5
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,705
hoping you have resolved your issue.
While I have neither a 645Z nor a 67 55, I do use the fotodiox 67->645 adapter with two of my 67 lenses and have no issues achieving infinity focus. FWIW.
good luck
11-13-2014, 10:57 PM   #6
Junior Member




Join Date: Aug 2014
Posts: 31
Original Poster
QuoteOriginally posted by mikeSF Quote
hoping you have resolved your issue.
While I have neither a 645Z nor a 67 55, I do use the fotodiox 67->645 adapter with two of my 67 lenses and have no issues achieving infinity focus. FWIW.
good luck
Thanks...I'm thinking it may be the lens. Simple fix, I hope.
I have found that the adapter is not flat and is adding an unwelcome tilt to one side of the lens causing edge softness on the images.
11-14-2014, 12:47 AM   #7
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,705
oh boy, i never noticed an off axis issue - will test my adapter post haste.
here is a shot from my fotodiox adapter and the SMC 67 105mm

Four Mile Beach
11-14-2014, 09:50 AM   #8
Junior Member




Join Date: Aug 2014
Posts: 31
Original Poster
QuoteOriginally posted by mikeSF Quote
oh boy, i never noticed an off axis issue - will test my adapter post haste.
here is a shot from my fotodiox adapter and the SMC 67 105mm

Four Mile Beach
Very nice!

The tilt is very noticeable with my 67 55mm, noticeable with my 67 75mm, and less with my 67 135mm and all but gone with my 67 200mm lens. Just like with a tilt lens, where a little tilt is all that is needed with a shorter focal length lens, and the same tilt with longer focal lens will not be notice.

11-14-2014, 11:14 AM   #9
Pentaxian




Join Date: Feb 2009
Location: Arizona
Posts: 911
Adapters from several companies have had problems with holding dimensional tolerances. My Zoerk did and I had to get spacers from the factory to fix infinity focus. Sounds like Fotodiox has some quality problems.
12-17-2014, 09:30 PM   #10
Site Supporter




Join Date: Nov 2011
Location: pontiac mi.
Posts: 353
if a 55mm lens is a must for you, then look for a 55mm 645 lens.
12-17-2014, 10:44 PM   #11
Junior Member




Join Date: Aug 2014
Posts: 31
Original Poster
QuoteOriginally posted by bull drinkwater Quote
if a 55mm lens is a must for you, then look for a 55mm 645 lens.
Thanks...

I did get the 645 55mm lens to give it a try. I like the 67 55mm lens better...still working out the adapter issue.
12-23-2014, 08:02 PM   #12
Junior Member




Join Date: Nov 2013
Posts: 40
Easy solution, based on my experience- Pentax 67 to 645 adapter. Easy to get on eBay, many vendors from Far East keep a regular stream of them coming, it seems. I have over half a dozen (like to keep them on the 67 lens) and haven't had an alignment or focus problem yet. And if you're referring to the late model 55mm f4 1986 and later, yes, that's a keeper- I prefer it to the DFA 55 mm, which I have, too, but don't use unless I absolutely MUST have autofocus. Which isn't normally the case.
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, adapter, camera, medium format
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: REDUCED: 67-645 adapter [SOLD: Two 645 Bodies, A-Lenses 200mm, 80-160mm] AquaDome Sold Items 7 10-10-2014 09:57 AM
Wanted - Acquired: Pentax 67 to 645 adapter mikeSF Sold Items 9 09-14-2013 04:48 PM
P645NII, 67>645 Adapter, 67 Auto Extension Tubes? ASA32 Pentax Medium Format 4 05-24-2013 09:27 AM
67>645 Adapter, tiny spring? ASA32 Pentax Medium Format 2 05-09-2013 01:58 PM
67 to 645 Adapter question Fritzenpapa Pentax Medium Format 8 03-24-2013 09:47 PM



All times are GMT -7. The time now is 06:15 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